Fix registration of module loading functions

CMakeLists.txt

@@ -2,22 +2,44 @@ cmake_minimum_required(VERSION 2.6)
 
 project(chaiscript)
 
-SET (CMAKE_BUILD_TYPE gdb)
-SET (CMAKE_C_FLAGS_GDB " -Wall -ggdb")
-SET (CMAKE_CXX_FLAGS_GDB " -Wall -ggdb")
+FIND_LIBRARY(READLINE_LIBRARY NAMES readline PATH /usr/lib /usr/local/lib /opt/local/lib)
 
-#SET (CMAKE_BUILD_TYPE rel)
-#SET (CMAKE_C_FLAGS_REL " -Wall -O3")
-#SET (CMAKE_CXX_FLAGS_REL " -Wall -O3")
+MESSAGE(STATUS "Detecting readline support")
+if (READLINE_LIBRARY)
+    MESSAGE(STATUS "Found: ${READLINE_LIBRARY}")
+    SET (READLINE_LIB readline)
+    SET (READLINE_FLAG " -DREADLINE_AVAILABLE")
+else(READLINE_LIBRARY)
+    MESSAGE(STATUS "Not Found")
+    SET (READLINE_LIB )
+    SET (READLINE_FLAG )
+endif(READLINE_LIBRARY)
+
+SET (CMAKE_C_FLAGS_REL " -Wall -O3 ${READLINE_FLAG}")
+SET (CMAKE_CXX_FLAGS_REL " -Wall -O3 ${READLINE_FLAG}")
+
+SET (CMAKE_C_FLAGS " -Wall -ggdb ${READLINE_FLAG}")
+SET (CMAKE_CXX_FLAGS " -Wall -ggdb ${READLINE_FLAG}")
 
 include_directories(include)
  
-find_package(Boost 1.36.0)
+find_package(Boost 1.36.0 COMPONENTS thread)
+
 if (Boost_FOUND)
 	include_directories(${Boost_INCLUDE_DIRS})
 	add_executable(chaiscript_eval src/main.cpp)
 	#add_executable(dispatchkit_test contrib/test/dispatchkit_test.cpp)
-	target_link_libraries(chaiscript_eval ${Boost_LIBRARIES})
+	target_link_libraries(chaiscript_eval dl ${Boost_LIBRARIES} ${READLINE_LIB})
+
+        add_library(test MODULE src/test_module.cpp)
+	target_link_libraries(test ${Boost_LIBRARIES})
+
+        add_library(stl_extra MODULE src/stl_extra.cpp)
+	target_link_libraries(stl_extra ${Boost_LIBRARIES})
+
 	install(TARGETS chaiscript_eval DESTINATION ${CMAKE_CURRENT_SOURCE_DIR}/bin)
+        
+else(Boost_FOUND)
+        message(FATAL_ERROR "Can not find Boost")
 endif(Boost_FOUND)
 

contrib/codeanalysis/analyzedata.sh

@@ -0,0 +1,43 @@
+
+function analyze_data
+{
+  echo -n "$1," >> $2
+  awk 'END {printf "%s,", $1}' r$1-codesize.out >> $2
+  awk '{printf "%s,", $1}' r$1-numunittests.out >> $2
+  awk 'END {printf "%s,", $1}' r$1-unittestsoutput.out >> $2
+
+  awk '{printf "%s,", $1}' r$1-debugbinarysize.out  >> $2
+  awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-debugbuildtime.out >> $2
+  awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-debugprofiletime.out >> $2
+
+  awk '{printf "%s,", $1}' r$1-releasebinarysize.out  >> $2
+  awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-releasebuildtime.out >> $2
+  awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-releasemodulesbuildtime.out >> $2
+  awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-releaseprofiletime.out >> $2
+  awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-releaseunittestruntime.out >> $2
+
+  if [ -x r$1-threadfreebinarysize.out ]
+  then
+    awk '{printf "%s,", $1}' r$1-threadfreebinarysize.out  >> $2
+    awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-threadfreeprofiletime.out >> $2
+
+    awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-1threadruntime.out >> $2
+    awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-2threadruntime.out >> $2
+    awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-4threadruntime.out >> $2
+    awk 'NR>1{exit} 1 {printf "%s,", $2}' r$1-8threadruntime.out >> $2
+  else
+    echo -n ",,,,,," >> $2
+  fi
+
+  awk -F "\n" 'NR>1{exit} 1 {printf "\"%s\"\n", $1}' r$1-revisionlog.out >> $2
+}
+
+
+filename=output-$1-$2.csv
+
+echo "Revision, LOC, Num Unit Tests, Successful Unit Tests, Debug Binary Size, Debug Build Time, Debug Profile Time, Release Binary Size, Release Core Build Time, Release Modules Build Time, Release Profile Time, Release Unit Tests Time, Threadless Binary Size, Threadless Profile Time, 1 Thread Profile Time, 2 Threads Profile Time, 4 Threads Profile Time, 8 Threads Profile Time, Revision Log" > $filename
+
+for i in `seq $1 $2` 
+do
+  analyze_data $i $filename
+done

contrib/codeanalysis/codeanalysis.sh

@@ -0,0 +1,81 @@
+
+function run_test
+{
+  echo "****Getting r$1 from SVN"
+  svn export --quiet -r$1 http://chaiscript.googlecode.com/svn/trunk chaiscript-r$1
+
+  pushd chaiscript-r$1
+
+  echo "****Getting svn revision log"
+  svn propget svn:log --revprop -r$1  http://chaiscript.googlecode.com/svn/trunk > ../r$1-revisionlog.out
+
+  echo "****Editing CMakeLists.txt to allow for build type switching"
+  # Clean up CMakeLists.txt so that we can set the build type at configure time
+  sed -i -e "s/SET (CMAKE_BUILD_TYPE.*//"  CMakeLists.txt
+
+  echo "****Compiling Debug Build"
+  cmake -D CMAKE_BUILD_TYPE=Debug CMakeLists.txt
+  /usr/bin/time -p make chaiscript_eval 2> ../r$1-debugbuildtime.out
+
+  echo "****Analyzing Debug Build"
+  /usr/bin/time -p ./chaiscript_eval ../profile.chai 2>../r$1-debugprofiletime.out
+  ls -s --block-size=1 ./chaiscript_eval > ../r$1-debugbinarysize.out
+
+  make clean
+
+  echo "****Compiling Release Build"
+  cmake -D CMAKE_BUILD_TYPE=Release CMakeLists.txt
+  /usr/bin/time -p make chaiscript_eval 2> ../r$1-releasebuildtime.out
+
+  echo "****Analyzing Release Build"
+  /usr/bin/time -p ./chaiscript_eval ../profile.chai 2>../r$1-releaseprofiletime.out
+  ls -s --block-size=1 ./chaiscript_eval > ../r$1-releasebinarysize.out
+
+  echo "****Analyzing Code Size"
+  find ./include -name "*.hpp" | xargs wc > ../r$1-codesize.out
+
+  echo "****Building Remaining Modules"
+  /usr/bin/time -p make 2> ../r$1-releasemodulesbuildtime.out
+
+  echo "****Running unit tests"
+  /usr/bin/time -p ./run_unit_tests.sh 2> ../r$1-releaseunittestruntime.out > ../r$1-unittestsoutput.out
+
+  echo "****Counting number of unit tests"
+  find unittests/ -name "*.chai" | wc | awk '{print $1}' > ../r$1-numunittests.out
+
+
+  echo "****Running multithreaded tests"
+  if [ -e src/multithreaded.cpp ]
+  then
+    # Run multithreaded tests
+    echo "****Building multithreaded test"
+    pushd src
+    g++ multithreaded.cpp -lboost_thread-mt -ldl -omultithreaded -I../include -O3
+    echo "****Testing 1 thread runtime"
+    /usr/bin/time -p ./multithreaded 1 2> ../../r$1-1threadruntime.out
+    echo "****Testing 2 thread runtime"
+    /usr/bin/time -p ./multithreaded 1 1 2> ../../r$1-2threadruntime.out
+    echo "****Testing 4 thread runtime"
+    /usr/bin/time -p ./multithreaded 1 1 1 1 2> ../../r$1-4threadruntime.out
+    echo "****Testing 8 thread runtime"
+    /usr/bin/time -p ./multithreaded 1 1 1 1 1 1 1 1 2> ../../r$1-8threadruntime.out
+
+
+    echo "****Compiling thread-free version"
+    g++ main.cpp -ldl -othreadfree -I../include -O3 -DCHAISCRIPT_NO_THREADS
+    echo "****Analyzing thread-free version"
+    /usr/bin/time -p ./threadfree ../../profile.chai 2>../../r$1-threadfreeprofiletime.out
+    ls -s --block-size=1 ./threadfree > ../../r$1-threadfreebinarysize.out
+
+    popd
+  else
+    echo "Multithreaded test non-existent"
+  fi
+
+  popd
+}
+
+for i in `seq $1 $2` 
+do
+  run_test $i
+done

contrib/codeanalysis/profile.chai

@@ -0,0 +1,15 @@
+var total = 0
+ 
+for (var i = 0.0; i < 10000.0; i += 0.1) {
+  total += int(double(i) + int(10));
+  if (i < 9000.0)
+  {
+    total += double(11);
+    if (i > double(4000.0))
+    {
+      total += double(10);
+    }
+  }
+}
+ 
+print(total)

include/chaiscript/chaiscript.hpp

@@ -21,113 +21,13 @@
 #include "dispatchkit/bootstrap.hpp"
 #include "dispatchkit/bootstrap_stl.hpp"
 #include "dispatchkit/function_call.hpp"
-namespace chaiscript
-{
-    /**
-     * Types of AST nodes available to the parser and eval
-     */
-    class Token_Type { public: enum Type { Error, Int, Float, Id, Char, Str, Eol, Fun_Call, Arg_List, Variable, Equation, Var_Decl,
-        Expression, Comparison, Additive, Multiplicative, Negate, Not, Array_Call, Dot_Access, Quoted_String, Single_Quoted_String,
-        Lambda, Block, Def, While, If, For, Inline_Array, Inline_Map, Return, File, Prefix, Break, Map_Pair, Value_Range,
-        Inline_Range, Annotation }; };
+#include "dispatchkit/dynamic_object.hpp"
 
-    /**
-     * Helper lookup to get the name of each node type
-     */
-    const char *token_type_to_string(int tokentype) {
-        const char *token_types[] = { "Internal Parser Error", "Int", "Float", "Id", "Char", "Str", "Eol", "Fun_Call", "Arg_List", "Variable", "Equation", "Var_Decl",
-            "Expression", "Comparison", "Additive", "Multiplicative", "Negate", "Not", "Array_Call", "Dot_Access", "Quoted_String", "Single_Quoted_String",
-            "Lambda", "Block", "Def", "While", "If", "For", "Inline_Array", "Inline_Map", "Return", "File", "Prefix", "Break", "Map_Pair", "Value_Range",
-            "Inline_Range", "Annotation"};
-
-        return token_types[tokentype];
-    }
-
-    /**
-     * Convenience type for file positions
-     */
-    struct File_Position {
-        int line;
-        int column;
-
-        File_Position(int file_line, int file_column)
-            : line(file_line), column(file_column) { }
-
-        File_Position() : line(0), column(0) { }
-    };
-
-    typedef boost::shared_ptr<struct Token> TokenPtr;
-
-    /**
-     * The struct that doubles as both a parser token and an AST node
-     */
-    struct Token {
-        std::string text;
-        int identifier;
-        const char *filename;
-        File_Position start, end;
-
-        std::vector<TokenPtr> children;
-        TokenPtr annotation;
-
-        Token(const std::string &token_text, int id, const char *fname) : text(token_text), identifier(id), filename(fname) { }
-
-        Token(const std::string &token_text, int id, const char *fname, int start_line, int start_col, int end_line, int end_col) :
-            text(token_text), identifier(id), filename(fname) {
-
-            start.line = start_line;
-            start.column = start_col;
-            end.line = end_line;
-            end.column = end_col;
-        }
-    };
-
-    /**
-     * Errors generated during parsing or evaluation
-     */
-    struct Eval_Error : public std::runtime_error {
-        std::string reason;
-        File_Position position;
-        const char *filename;
-
-        Eval_Error(const std::string &why, const File_Position &where, const char *fname) :
-            std::runtime_error("Error: \"" + why + "\" " +
-                (std::string(fname) != "__EVAL__" ? ("in '" + std::string(fname) + "' ") : "during evaluation ") +
-                + "at (" + boost::lexical_cast<std::string>(where.line) + ", " +
-                boost::lexical_cast<std::string>(where.column) + ")"),
-            reason(why), position(where), filename(fname) 
-        { }
-
-        Eval_Error(const std::string &why, const TokenPtr &where)
-            : std::runtime_error("Error: \"" + why + "\" " +
-                (std::string(where->filename) != "__EVAL__" ? ("in '" + std::string(where->filename) + "' ") : "during evaluation ") +
-                "at (" + boost::lexical_cast<std::string>(where->start.line) + ", " +
-                boost::lexical_cast<std::string>(where->start.column) + ")"),
-              reason(why), position(where->start), filename(where->filename) {
-        }
-
-        virtual ~Eval_Error() throw() {}
-    };
-
-    /**
-     * Special type for returned values
-     */
-    struct Return_Value {
-        Boxed_Value retval;
-        TokenPtr location;
-
-        Return_Value(const Boxed_Value &return_value, const TokenPtr where) : retval(return_value), location(where) { }
-    };
-
-    /**
-     * Special type indicating a call to 'break'
-     */
-    struct Break_Loop {
-        TokenPtr location;
-
-        Break_Loop(const TokenPtr where) : location(where) { }
-    };
-}
+#ifdef  BOOST_HAS_DECLSPEC
+#define CHAISCRIPT_MODULE_EXPORT extern "C" __declspec(dllexport)
+#else
+#define CHAISCRIPT_MODULE_EXPORT extern "C" 
+#endif
 
 #include "language/chaiscript_eval.hpp"
 #include "language/chaiscript_engine.hpp"

include/chaiscript/chaiscript_threading.hpp

@@ -0,0 +1,73 @@
+#ifndef __chaiscript_threading_hpp__
+#define __chaiscript_threading_hpp__
+
+#ifndef CHAISCRIPT_NO_THREADS
+#include <boost/thread.hpp>
+#else
+#warning "ChaiScript is compiling without thread safety."
+#endif
+
+namespace chaiscript
+{
+  namespace threading
+  {
+
+#ifndef CHAISCRIPT_NO_THREADS
+
+    template<typename T>
+      class Thread_Storage
+      {
+        public:
+          ~Thread_Storage()
+          {
+            m_thread_storage.reset();
+          }
+
+          inline T *operator->() const
+          {
+            if (!m_thread_storage.get())
+            {
+              m_thread_storage.reset(new T());
+            }
+
+            return m_thread_storage.get();
+          }
+
+          inline T &operator*() const
+          {
+            return *(this->operator->());
+          }
+
+        private:
+          mutable boost::thread_specific_ptr<T> m_thread_storage;
+      };
+
+#else
+
+    template<typename T>
+      class Thread_Storage
+      {
+        public:
+          inline T *operator->() const
+          {
+            return &obj;
+          }
+
+          inline T &operator*() const
+          {
+            return obj;
+          }
+
+        private:
+          mutable T obj;
+      };
+
+#endif
+
+  }
+}
+
+
+
+#endif
+

include/chaiscript/dispatchkit/bind_first.hpp

@@ -0,0 +1,65 @@
+// This file is distributed under the BSD License.
+// See "license.txt" for details.
+// Copyright 2009, Jonathan Turner (jturner@minnow-lang.org)
+// and Jason Turner (lefticus@gmail.com)
+// http://www.chaiscript.com
+
+#include <boost/preprocessor.hpp>
+#include <boost/preprocessor/arithmetic/inc.hpp>
+
+#define param(z,n,text) BOOST_PP_CAT(text, BOOST_PP_INC(n)) 
+
+#ifndef  BOOST_PP_IS_ITERATING
+#ifndef __bind_first_hpp__
+#define __bind_first_hpp__
+
+#include <boost/function.hpp>
+#include <boost/bind.hpp>
+#include <boost/ref.hpp>
+
+#define BOOST_PP_ITERATION_LIMITS ( 0, 8 )
+#define BOOST_PP_FILENAME_1 <chaiscript/dispatchkit/bind_first.hpp>
+
+#include BOOST_PP_ITERATE()
+
+
+# endif
+#else
+# define n BOOST_PP_ITERATION()
+# define m BOOST_PP_INC(n)
+
+namespace chaiscript
+{
+ 
+  template<typename Ret, typename O, typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
+    boost::function<Ret (BOOST_PP_ENUM_PARAMS(n, Param))> 
+      bind_first(Ret (Class::*f)(BOOST_PP_ENUM_PARAMS(n, Param)), const O &o)
+      {
+        return boost::bind(f, o BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM(n, param, _));
+      }
+
+  template<typename Ret, typename O, typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
+    boost::function<Ret (BOOST_PP_ENUM_PARAMS(n, Param))> 
+      bind_first(Ret (Class::*f)(BOOST_PP_ENUM_PARAMS(n, Param))const, const O &o)
+      {
+        return boost::bind(f, o BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM(n, param, _));
+      }
+
+  template<typename Ret,typename O BOOST_PP_COMMA_IF(m) BOOST_PP_ENUM_PARAMS(m, typename Param) >
+    boost::function<Ret (BOOST_PP_ENUM(n, param, Param))> 
+      bind_first(Ret (*f)(BOOST_PP_ENUM_PARAMS(m, Param)), const O &o)
+      {
+        return boost::bind(f, o BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM(n, param, _));
+      }
+
+  template<typename Ret,typename O BOOST_PP_COMMA_IF(m) BOOST_PP_ENUM_PARAMS(m, typename Param) >
+    boost::function<Ret (BOOST_PP_ENUM(n, param, Param))> 
+      bind_first(const boost::function<Ret (BOOST_PP_ENUM_PARAMS(m, Param))> &f, const O &o)
+      {
+        return boost::bind(f, o BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM(n, param, _));
+      }
+
+
+}
+
+#endif

include/chaiscript/dispatchkit/bootstrap.hpp

@@ -8,6 +8,7 @@
 #define __bootstrap_hpp__
 
 #include "dispatchkit.hpp"
+#include "dynamic_object.hpp"
 #include "register_function.hpp"
 
 namespace chaiscript 
@@ -49,6 +50,18 @@ namespace chaiscript
         return p1 % p2;
       }
 
+      template<typename Ret, typename P1, typename P2>
+      Ret shift_left(P1 p1, P2 p2)
+      {
+        return p1 << p2;
+      }
+
+      template<typename Ret, typename P1, typename P2>
+      Ret shift_right(P1 p1, P2 p2)
+      {
+        return p1 >> p2;
+      }
+
       template<typename P1, typename P2>
       P1 &assign(P1 &p1, const P2 &p2)
       {
@@ -482,18 +495,6 @@ namespace chaiscript
       return boost::lexical_cast<std::string>(i);
     }
 
-    /**
-    * Boolean specialization of internal to_string function 
-    */
-    template<> std::string to_string(bool b)
-    {
-      if (b)
-      {
-        return "true";
-      } else {
-        return "false";
-      }
-    }
 
     /**
     * Internal function for converting from a string to a value
@@ -532,22 +533,39 @@ namespace chaiscript
     * function variables.
     */
     template<typename Type>
-    boost::shared_ptr<Type> shared_ptr_clone(boost::shared_ptr<Type> f)
+    boost::shared_ptr<Type> shared_ptr_clone(const boost::shared_ptr<Type> &p)
     {
-      return f;
+      return p;
     }
 
+    /**
+     * Specific version of shared_ptr_clone just for Proxy_Functions
+     */
+    template<typename Type>
+    boost::shared_ptr<typename boost::remove_const<Type>::type> 
+        shared_ptr_unconst_clone(const boost::shared_ptr<typename boost::add_const<Type>::type> &p)
+    {
+      return boost::const_pointer_cast<typename boost::remove_const<Type>::type>(p);
+    }
+
+
+
     /**
     * Assignment function for shared_ptr objects, does not perform a copy of the
     * object pointed to, instead maintains the shared_ptr concept.
     * Similar to shared_ptr_clone. Used for Proxy_Function.
     */
     template<typename Type>
-    Boxed_Value ptr_assign(Boxed_Value lhs, boost::shared_ptr<Type> rhs)
+    Boxed_Value ptr_assign(Boxed_Value lhs, const boost::shared_ptr<typename boost::add_const<Type>::type> &rhs)
     {
-      lhs.assign(Boxed_Value(rhs));
-
-      return lhs;
+      if (lhs.is_unknown() 
+          || (!lhs.get_type_info().is_const() && lhs.get_type_info().bare_equal(chaiscript::detail::Get_Type_Info<Type>::get())))
+      {
+        lhs.assign(Boxed_Value(rhs));
+        return lhs;
+      } else {
+        throw bad_boxed_cast("type mismatch in pointer assignment");
+      }
     }
 
     /**
@@ -616,9 +634,9 @@ namespace chaiscript
           throw arity_error(params.size(), 2);
         }
 
-        Proxy_Function f = boxed_cast<Proxy_Function >(params[0]);
+        Const_Proxy_Function f = boxed_cast<Const_Proxy_Function>(params[0]);
 
-        return Boxed_Value(Proxy_Function(new Bound_Function(f,
+        return Boxed_Value(Const_Proxy_Function(new Bound_Function(f,
           std::vector<Boxed_Value>(params.begin() + 1, params.end()))));
       }
 
@@ -633,17 +651,39 @@ namespace chaiscript
           throw arity_error(params.size(), 1);
         }
 
-        Proxy_Function f = boxed_cast<Proxy_Function >(params[0]);
+        Const_Proxy_Function f = boxed_cast<Const_Proxy_Function>(params[0]);
 
-        return Boxed_Value(f->types_match(std::vector<Boxed_Value>(params.begin() + 1, params.end())));
+        return Boxed_Value(f->call_match(std::vector<Boxed_Value>(params.begin() + 1, params.end())));
       }
 
+      static void throw_exception(const Boxed_Value &bv) {
+        throw bv;
+      }
+      
       static boost::shared_ptr<Dispatch_Engine> bootstrap2(boost::shared_ptr<Dispatch_Engine> e = boost::shared_ptr<Dispatch_Engine> (new Dispatch_Engine()))
       {
         e->add(user_type<void>(), "void");
         return e;
       }
 
+      static std::string what(const std::exception &e)
+      {
+        return e.what();
+      }
+
+      /**
+       * Boolean specialization of internal to_string function 
+       */
+      static std::string bool_to_string(bool b)
+      {
+        if (b)
+        {
+          return "true";
+        } else {
+          return "false";
+        }
+      }
+
     public:
       /**
       * perform all common bootstrap functions for std::string, void and POD types
@@ -655,14 +695,29 @@ namespace chaiscript
         m->add(user_type<Boxed_Value>(), "Object");
         m->add(user_type<Boxed_POD_Value>(), "PODObject");
         m->add(user_type<Proxy_Function>(), "function");
+        m->add(user_type<std::exception>(), "exception");
+
+        m->add(user_type<std::runtime_error>(), "runtime_error");
+        m->add(constructor<std::runtime_error (const std::string &)>(), "runtime_error");
+        m->add(fun(boost::function<std::string (const std::runtime_error &)>(&what)), "what");     
+
+        m->add(user_type<Dynamic_Object>(), "Dynamic_Object");
+        m->add(constructor<Dynamic_Object (const std::string &)>(), "Dynamic_Object");
+        m->add(fun(&Dynamic_Object::get_type_name), "get_type_name");
+        m->add(fun(&Dynamic_Object::get_attrs), "get_attrs");
+        m->add(fun(&Dynamic_Object::get_attr), "get_attr");
+        m->eval("def Dynamic_Object::clone() { var new_o := Dynamic_Object(this.get_type_name()); for_each(this.get_attrs(), bind(fun(new_o, x) { new_o.get_attr(x.first) = x.second; }, new_o, _) ); return new_o; }");
+
 
         basic_constructors<bool>("bool", m);
         oper_assign<std::string>(m);
         oper_assign<bool>(m);
 
         m->add(fun(&to_string<const std::string &>), "internal_to_string");
-        m->add(fun(&to_string<bool>), "internal_to_string");
+        m->add(fun(&Bootstrap::bool_to_string), "internal_to_string");
         m->add(fun(&unknown_assign), "=");
+        m->add(fun(&throw_exception), "throw");
+        m->add(fun(&what), "what");
 
         bootstrap_pod_type<double>("double", m);
         bootstrap_pod_type<int>("int", m);
@@ -674,6 +729,8 @@ namespace chaiscript
         opers_arithmetic_pod(m);
 
         m->add(fun(&detail::modulus<int, int, int>), "%");
+        m->add(fun(&detail::shift_left<int, int, int>), "<<");
+        m->add(fun(&detail::shift_right<int, int, int>), ">>");
 
         m->add(fun(&print), "print_string");
         m->add(fun(&println), "println_string");
@@ -681,7 +738,7 @@ namespace chaiscript
         m->add(Proxy_Function(new Dynamic_Proxy_Function(boost::bind(&bind_function, _1))), 
           "bind");
 
-        m->add(fun(&shared_ptr_clone<Proxy_Function_Base>), "clone");
+        m->add(fun(&shared_ptr_unconst_clone<Proxy_Function_Base>), "clone");
         m->add(fun(&ptr_assign<Proxy_Function_Base>), "=");
 
         m->add(Proxy_Function(new Dynamic_Proxy_Function(boost::bind(&call_exists, _1))), 

include/chaiscript/dispatchkit/bootstrap_stl.hpp

@@ -36,16 +36,6 @@ namespace chaiscript
       {
       }
 
-      Bidir_Range(typename Container::iterator itr)
-        : m_begin(itr), m_end(itr)
-      {
-      }
-
-      Bidir_Range(const std::pair<typename Container::iterator, typename Container::iterator> &t_p)
-        : m_begin(t_p.first), m_end(t_p.second)
-      {
-      }
-
       bool empty() const
       {
         return m_begin == m_end;
@@ -118,20 +108,10 @@ namespace chaiscript
     ModulePtr input_range_type(const std::string &type, ModulePtr m = ModulePtr(new Module()))
     {
       m->add(user_type<Bidir_Range<ContainerType> >(), type + "_Range");
-      m->add(user_type<Retro<Bidir_Range<ContainerType> > >(), type + "_Retro_Range");
-      m->add(user_type<typename ContainerType::iterator>(), type+"_Iterator");
 
       copy_constructor<Bidir_Range<ContainerType> >(type + "_Range", m);
-      copy_constructor<Retro<Bidir_Range<ContainerType> > >(type + "_Retro_Range", m);
 
       m->add(constructor<Bidir_Range<ContainerType> (ContainerType &)>(), "range");
-      m->add(constructor<Bidir_Range<ContainerType> (typename ContainerType::iterator)>(), "range");
-
-      typedef std::pair<typename ContainerType::iterator, typename ContainerType::iterator> ItrPair;
-
-      m->add(constructor<Bidir_Range<ContainerType> (const ItrPair &)>(), "range");
-
-      m->add(user_type<ItrPair>(), type+"_Iterator_Pair");
 
       m->add(fun(&Bidir_Range<ContainerType>::empty), "empty");
       m->add(fun(&Bidir_Range<ContainerType>::pop_front), "pop_front");
@@ -139,16 +119,6 @@ namespace chaiscript
       m->add(fun(&Bidir_Range<ContainerType>::pop_back), "pop_back");
       m->add(fun(&Bidir_Range<ContainerType>::back), "back");
 
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::empty), "empty");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::pop_front), "pop_front");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::front), "front");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::pop_back), "pop_back");
-      m->add(fun(&Retro<Bidir_Range<ContainerType> >::back), "back");
-
-      m->add(constructor<Retro<Bidir_Range<ContainerType> > (const Bidir_Range<ContainerType> &)>(), "retro");
-
-
-
       return m;
     } 
 
@@ -175,9 +145,7 @@ namespace chaiscript
       //In the interest of runtime safety for the m, we prefer the at() method for [] access,
       //to throw an exception in an out of bounds condition.
       m->add(
-        fun(boost::function<typename ContainerType::reference (ContainerType *, int)>(indexoper(&ContainerType::at))), "[]");
-      m->add(
-        fun(boost::function<typename ContainerType::reference (ContainerType *, int)>(indexoper(&ContainerType::operator[]))), "at");
+        fun(boost::function<typename ContainerType::reference (ContainerType *, int)>(static_cast<indexoper>(&ContainerType::at))), "[]");
 
       return m;
     }
@@ -203,10 +171,9 @@ namespace chaiscript
     {
       assignable_type<ContainerType>(type, m);
 
-      m->add(fun(&ContainerType::size), "size");
-      m->add(fun(&ContainerType::max_size), "max_size");
-      m->add(fun(&ContainerType::empty), "empty");
-      m->add(fun(&ContainerType::clear), "clear");
+      m->add(fun<size_t (ContainerType::*)() const>(&ContainerType::size), "size");
+      m->add(fun<bool (ContainerType::*)() const>(&ContainerType::empty), "empty");
+      m->add(fun<void (ContainerType::*)()>(&ContainerType::clear), "clear");
 
       return m;
     }
@@ -307,7 +274,7 @@ namespace chaiscript
 
       typedef typename ContainerType::reference (ContainerType::*backptr)();
 
-      m->add(fun(backptr(&ContainerType::back)), "back");
+      m->add(fun(static_cast<backptr>(&ContainerType::back)), "back");
 
       std::string push_back_name;
       if (typeid(typename ContainerType::value_type) == typeid(Boxed_Value))
@@ -322,6 +289,45 @@ namespace chaiscript
       return m;
     }
 
+
+    /**
+     *Front insertion sequence
+     *http://www.sgi.com/tech/stl/FrontInsertionSequence.html
+     */
+    template<typename ContainerType>
+    ModulePtr front_insertion_sequence_type(const std::string &type, ModulePtr m = ModulePtr(new Module()))
+    {
+      sequence_type<ContainerType>(type, m);
+
+      typedef typename ContainerType::reference (ContainerType::*frontptr)();
+
+      m->add(fun(static_cast<frontptr>(&ContainerType::front)), "front");
+
+      std::string push_front_name;
+      if (typeid(typename ContainerType::value_type) == typeid(Boxed_Value))
+      {
+        push_front_name = "push_front_ref";
+      } else {
+        push_front_name = "push_front";
+      }
+      m->add(fun(&ContainerType::push_front), push_front_name);
+      m->add(fun(&ContainerType::pop_front), "pop_front");
+      return m;
+    }
+
+    /**
+     * hopefully working List type
+     * http://www.sgi.com/tech/stl/List.html
+     */
+    template<typename ListType>
+    ModulePtr list_type(const std::string &type, ModulePtr m = ModulePtr(new Module()))
+    {
+      m->add(user_type<ListType>(), type);
+      front_insertion_sequence_type<ListType>(type, m);
+      back_insertion_sequence_type<ListType>(type, m);
+      return m;
+    }
+
     /**
     * Create a vector type with associated concepts
     * http://www.sgi.com/tech/stl/Vector.html
@@ -387,7 +393,7 @@ namespace chaiscript
     ModulePtr unique_associative_container_type(const std::string &type, ModulePtr m = ModulePtr(new Module()))
     {
       associative_container_type<ContainerType>(type, m);
-      m->add(fun(&ContainerType::count), "count");
+      m->add(fun<size_t (ContainerType::*)(const typename ContainerType::key_type &) const>(&ContainerType::count), "count");
 
       return m;
     }
@@ -404,7 +410,6 @@ namespace chaiscript
 
       reversible_container_type<ContainerType>(type, m);
       associative_container_type<ContainerType>(type, m);
-      m->add(fun(eq_range(&ContainerType::equal_range)), "equal_range");
 
       return m;
     }
@@ -462,12 +467,12 @@ namespace chaiscript
       m->add(fun(&String::push_back), push_back_name);
 
       typedef typename String::size_type (String::*find_func)(const String &, typename String::size_type) const;
-      m->add(fun(find_func(&String::find)), "find");
-      m->add(fun(find_func(&String::rfind)), "rfind");
-      m->add(fun(find_func(&String::find_first_of)), "find_first_of");
-      m->add(fun(find_func(&String::find_last_of)), "find_last_of");
-      m->add(fun(find_func(&String::find_first_not_of)), "find_first_not_of");
-      m->add(fun(find_func(&String::find_last_not_of)), "find_last_not_of");
+      m->add(fun(static_cast<find_func>(&String::find)), "find");
+      m->add(fun(static_cast<find_func>(&String::rfind)), "rfind");
+      m->add(fun(static_cast<find_func>(&String::find_first_of)), "find_first_of");
+      m->add(fun(static_cast<find_func>(&String::find_last_of)), "find_last_of");
+      m->add(fun(static_cast<find_func>(&String::find_first_not_of)), "find_first_not_of");
+      m->add(fun(static_cast<find_func>(&String::find_last_not_of)), "find_last_not_of");
 
       return m;
     }

include/chaiscript/dispatchkit/boxed_value.hpp

@@ -8,6 +8,7 @@
 #define __boxed_value_hpp__
 
 #include "type_info.hpp"
+#include "../chaiscript_threading.hpp"
 #include <map>
 #include <boost/shared_ptr.hpp>
 #include <boost/any.hpp>
@@ -97,11 +98,6 @@ namespace chaiscript
           return *this;
         }
 
-        static bool get_false()
-        {
-          return false;
-        }
-
         Type_Info m_type_info;
         boost::any m_obj;
         bool m_is_ref;
@@ -116,10 +112,15 @@ namespace chaiscript
        */
       struct Object_Cache
       {
+        Object_Cache()
+          : m_cullcount(0)
+        {
+        }
+
         boost::shared_ptr<Data> get(Boxed_Value::Void_Type)
         {
           return boost::shared_ptr<Data> (new Data(
-                Get_Type_Info<void>::get(),
+                detail::Get_Type_Info<void>::get(),
                 boost::any(), 
                 false)
               );
@@ -134,21 +135,23 @@ namespace chaiscript
         template<typename T>
           boost::shared_ptr<Data> get(const boost::shared_ptr<T> &obj)
           {
+            bool b_const = boost::is_const<T>::value; 
+
             boost::shared_ptr<Data> data(new Data(
-                  Get_Type_Info<T>::get(), 
+                  detail::Get_Type_Info<T>::get(), 
                   boost::any(obj), 
                   false,
                   boost::shared_ptr<Data::Shared_Ptr_Proxy>(new Data::Shared_Ptr_Proxy_Impl<T>()))
                 );
 
-            std::map<const void *, Data>::iterator itr
-              = m_ptrs.find(obj.get());
+            std::map<std::pair<const void *, bool>, Data>::iterator itr
+              = m_ptrs.find(std::make_pair(obj.get(), b_const));
 
             if (itr != m_ptrs.end())
             {
               (*data) = (itr->second);
             } else {
-              m_ptrs.insert(std::make_pair(obj.get(), *data));
+              m_ptrs.insert(std::make_pair(std::make_pair(obj.get(), b_const), *data));
             }
 
             return data;
@@ -163,14 +166,16 @@ namespace chaiscript
         template<typename T>
           boost::shared_ptr<Data> get(boost::reference_wrapper<T> obj)
           {
+            bool b_const = boost::is_const<T>::value; 
+
             boost::shared_ptr<Data> data(new Data(
-                  Get_Type_Info<T>::get(),
+                  detail::Get_Type_Info<T>::get(),
                   boost::any(obj), 
                   true)
                 );
 
-            std::map<const void *, Data >::iterator itr
-              = m_ptrs.find(obj.get_pointer());
+            std::map<std::pair<const void *, bool>, Data >::iterator itr
+              = m_ptrs.find(std::make_pair(obj.get_pointer(), b_const) );
 
             // If the ptr is found in the cache and it is the correct type,
             // return it. It may be the incorrect type when two variables share the
@@ -180,7 +185,7 @@ namespace chaiscript
             // Both t and t.x share the same memory location, but do not represent
             // objects of the same type.
             if (itr != m_ptrs.end() 
-                && itr->second.m_type_info.m_bare_type_info == data->m_type_info.m_bare_type_info)
+                && itr->second.m_type_info.bare_equal(data->m_type_info))
             {
               (*data) = (itr->second);
             } 
@@ -192,7 +197,7 @@ namespace chaiscript
           boost::shared_ptr<Data> get(const T& t)
           {
             boost::shared_ptr<Data> data(new Data(
-                  Get_Type_Info<T>::get(), 
+                  detail::Get_Type_Info<T>::get(), 
                   boost::any(boost::shared_ptr<T>(new T(t))), 
                   false,
                   boost::shared_ptr<Data::Shared_Ptr_Proxy>(new Data::Shared_Ptr_Proxy_Impl<T>()))
@@ -200,7 +205,7 @@ namespace chaiscript
 
             boost::shared_ptr<T> *ptr = boost::any_cast<boost::shared_ptr<T> >(&data->m_obj);
 
-            m_ptrs.insert(std::make_pair(ptr->get(), *data));
+            m_ptrs.insert(std::make_pair(std::make_pair(ptr->get(), false), *data));
             return data;
           }
 
@@ -217,15 +222,23 @@ namespace chaiscript
          * Drop objects from the cache where there is only one (ie, our)
          * reference to it, so it may be destructed
          */
-        void cull()
+        void cull(bool force = false)
         {
-          std::map<const void *, Data >::iterator itr = m_ptrs.begin();
+          
+          ++m_cullcount;
+          if (force || m_cullcount % 10 != 0)
+          {
+            return;
+          }
+
+
+          std::map<std::pair<const void *, bool>, Data>::iterator itr = m_ptrs.begin();
 
           while (itr != m_ptrs.end())
           {
             if (itr->second.m_ptr_proxy->unique(&itr->second.m_obj) == 1)
             {
-              std::map<const void *, Data >::iterator todel = itr;
+              std::map<std::pair<const void *, bool>, Data >::iterator todel = itr;
               ++itr;
               m_ptrs.erase(todel);
             } else {
@@ -234,7 +247,8 @@ namespace chaiscript
           }
         }
 
-        std::map<const void *, Data > m_ptrs;
+        std::map<std::pair<const void *, bool>, Data > m_ptrs;
+        int m_cullcount;
       };
 
     public:
@@ -271,11 +285,16 @@ namespace chaiscript
       /**
        * Return a reference to the static global Object_Cache
        */
-      Object_Cache &get_object_cache()
+      static Object_Cache &get_object_cache()
       {
-        static Object_Cache oc;
-        return oc;
-      }    
+        static chaiscript::threading::Thread_Storage<Object_Cache> oc;
+        return *oc;
+      }   
+
+      static void clear_cache()
+      {
+        get_object_cache().m_ptrs.clear();
+      }
 
       /**
        * copy the values stored in rhs.m_data to m_data
@@ -306,7 +325,7 @@ namespace chaiscript
        */
       bool is_unknown() const
       {
-        return m_data->m_type_info.m_is_unknown;
+        return m_data->m_type_info.is_unknown();
       }
 
       boost::any get() const
@@ -324,175 +343,231 @@ namespace chaiscript
   };
 
 
-  // Cast_Helper helper classes
+  namespace detail
+  {
+    // Cast_Helper helper classes
 
-  /**
-   * Generic Cast_Helper, for casting to any type
-   */
-  template<typename Result>
-    struct Cast_Helper
-    {
-      typedef typename boost::reference_wrapper<typename boost::add_const<Result>::type > Result_Type;
-
-      static Result_Type cast(const Boxed_Value &ob)
+    /**
+     * Generic Cast_Helper, for casting to any type
+     */
+    template<typename Result>
+      struct Cast_Helper
       {
-        if (ob.is_ref())
+        typedef typename boost::reference_wrapper<typename boost::add_const<Result>::type > Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
         {
-          if (!ob.get_type_info().m_is_const)
+          if (ob.is_ref())
           {
-            return boost::cref((boost::any_cast<boost::reference_wrapper<Result> >(ob.get())).get());
+            if (!ob.get_type_info().is_const())
+            {
+              return boost::cref((boost::any_cast<boost::reference_wrapper<Result> >(ob.get())).get());
+            } else {
+              return boost::any_cast<boost::reference_wrapper<const Result> >(ob.get());
+            }
           } else {
-            return boost::any_cast<boost::reference_wrapper<const Result> >(ob.get());
+            if (!ob.get_type_info().is_const())
+            {
+              return boost::cref(*(boost::any_cast<boost::shared_ptr<Result> >(ob.get())));   
+            } else {
+              return boost::cref(*(boost::any_cast<boost::shared_ptr<const Result> >(ob.get())));   
+            }
           }
-        } else {
-          return boost::cref(*(boost::any_cast<boost::shared_ptr<Result> >(ob.get())));   
         }
-      }
-    };
+      };
 
-  /**
-   * Cast_Helper for casting to a const & type
-   */
-  template<typename Result>
-    struct Cast_Helper<const Result &>
-    {
-      typedef typename boost::reference_wrapper<typename boost::add_const<Result>::type > Result_Type;
-        
-      static Result_Type cast(const Boxed_Value &ob)
+    /**
+     * Cast_Helper for casting to a const & type
+     */
+    template<typename Result>
+      struct Cast_Helper<const Result &>
       {
-        if (ob.is_ref())
+        typedef typename boost::reference_wrapper<typename boost::add_const<Result>::type > Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
         {
-          if (!ob.get_type_info().m_is_const)
+          if (ob.is_ref())
           {
-            return boost::cref((boost::any_cast<boost::reference_wrapper<Result> >(ob.get())).get());
+            if (!ob.get_type_info().is_const())
+            {
+              return boost::cref((boost::any_cast<boost::reference_wrapper<Result> >(ob.get())).get());
+            } else {
+              return boost::any_cast<boost::reference_wrapper<const Result> >(ob.get());
+            }
           } else {
-            return boost::any_cast<boost::reference_wrapper<const Result> >(ob.get());
+            if (!ob.get_type_info().is_const())
+            {
+              return boost::cref(*(boost::any_cast<boost::shared_ptr<Result> >(ob.get())));   
+            } else {
+              return boost::cref(*(boost::any_cast<boost::shared_ptr<const Result> >(ob.get())));   
+            }
           }
-        } else {
-          return boost::cref(*(boost::any_cast<boost::shared_ptr<Result> >(ob.get())));   
         }
-      }
-    };
+      };
 
-  /**
-   * Cast_Helper for casting to a const * type
-   */
-  template<typename Result>
-    struct Cast_Helper<const Result *>
-    {
-      typedef const Result * Result_Type;
-
-      static Result_Type cast(const Boxed_Value &ob)
+    /**
+     * Cast_Helper for casting to a const * type
+     */
+    template<typename Result>
+      struct Cast_Helper<const Result *>
       {
-        if (ob.is_ref())
+        typedef const Result * Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
         {
-          if (!ob.get_type_info().m_is_const)
+          if (ob.is_ref())
+          {
+            if (!ob.get_type_info().is_const())
+            {
+              return (boost::any_cast<boost::reference_wrapper<Result> >(ob.get())).get_pointer();
+            } else {
+              return (boost::any_cast<boost::reference_wrapper<const Result> >(ob.get())).get_pointer();
+            }
+          } else {
+            if (!ob.get_type_info().is_const())
+            {
+              return (boost::any_cast<boost::shared_ptr<Result> >(ob.get())).get();
+            } else {
+              return (boost::any_cast<boost::shared_ptr<const Result> >(ob.get())).get();
+            }
+          }
+        }
+      };
+
+    /**
+     * Cast_Helper for casting to a * type
+     */
+    template<typename Result>
+      struct Cast_Helper<Result *>
+      {
+        typedef Result * Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
+        {
+          if (ob.is_ref())
           {
             return (boost::any_cast<boost::reference_wrapper<Result> >(ob.get())).get_pointer();
           } else {
-            return (boost::any_cast<boost::reference_wrapper<const Result> >(ob.get())).get_pointer();
+            return (boost::any_cast<boost::shared_ptr<Result> >(ob.get())).get();
           }
-        } else {
-          return (boost::any_cast<boost::shared_ptr<Result> >(ob.get())).get();
         }
-      }
-    };
+      };
 
-  /**
-   * Cast_Helper for casting to a * type
-   */
-  template<typename Result>
-    struct Cast_Helper<Result *>
-    {
-      typedef Result * Result_Type;
-
-      static Result_Type cast(const Boxed_Value &ob)
+    /**
+     * Cast_Helper for casting to a & type
+     */
+    template<typename Result>
+      struct Cast_Helper<Result &>
       {
-        if (ob.is_ref())
+        typedef typename boost::reference_wrapper<Result> Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
         {
-          return (boost::any_cast<boost::reference_wrapper<Result> >(ob.get())).get_pointer();
-        } else {
-          return (boost::any_cast<boost::shared_ptr<Result> >(ob.get())).get();
+          if (ob.is_ref())
+          {
+            return boost::any_cast<boost::reference_wrapper<Result> >(ob.get());
+          } else {
+            return boost::ref(*(boost::any_cast<boost::shared_ptr<Result> >(ob.get())));
+          }
         }
-      }
-    };
+      };
 
-  /**
-   * Cast_Helper for casting to a & type
-   */
-  template<typename Result>
-    struct Cast_Helper<Result &>
-    {
-      typedef typename boost::reference_wrapper<Result> Result_Type;
-
-      static Result_Type cast(const Boxed_Value &ob)
+    /**
+     * Cast_Helper for casting to a boost::shared_ptr<> type
+     */
+    template<typename Result>
+      struct Cast_Helper<typename boost::shared_ptr<Result> >
       {
-        if (ob.is_ref())
+        typedef typename boost::shared_ptr<Result> Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
         {
-          return boost::any_cast<boost::reference_wrapper<Result> >(ob.get());
-        } else {
-          return boost::ref(*(boost::any_cast<boost::shared_ptr<Result> >(ob.get())));
+          return boost::any_cast<boost::shared_ptr<Result> >(ob.get());
         }
-      }
-    };
+      };
 
-  /**
-   * Cast_Helper for casting to a boost::shared_ptr<> type
-   */
-  template<typename Result>
-    struct Cast_Helper<typename boost::shared_ptr<Result> >
-    {
-      typedef typename boost::shared_ptr<Result> Result_Type;
-        
-      static Result_Type cast(const Boxed_Value &ob)
+    /**
+     * Cast_Helper for casting to a boost::shared_ptr<const> type
+     */
+    template<typename Result>
+      struct Cast_Helper<typename boost::shared_ptr<const Result> >
       {
-        return boost::any_cast<boost::shared_ptr<Result> >(ob.get());
-      }
-    };
+        typedef typename boost::shared_ptr<const Result> Result_Type;
 
-  /**
-   * Cast_Helper for casting to a boost::shared_ptr<> type
-   */
-  template<typename Result>
-    struct Cast_Helper<const boost::shared_ptr<Result> &>
-    {
-      typedef typename boost::shared_ptr<Result> Result_Type;
-        
-      static Result_Type cast(const Boxed_Value &ob)
+        static Result_Type cast(const Boxed_Value &ob)
+        {
+          if (!ob.get_type_info().is_const())
+          {
+            return boost::const_pointer_cast<const Result>(boost::any_cast<boost::shared_ptr<Result> >(ob.get()));
+          } else {
+            return boost::any_cast<boost::shared_ptr<const Result> >(ob.get());
+          }
+        }
+      };
+
+    /**
+     * Cast_Helper for casting to a const boost::shared_ptr<> & type
+     */
+    template<typename Result>
+      struct Cast_Helper<const boost::shared_ptr<Result> &>
       {
-        return boost::any_cast<boost::shared_ptr<Result> >(ob.get());
-      }
-    };
+        typedef typename boost::shared_ptr<Result> Result_Type;
 
+        static Result_Type cast(const Boxed_Value &ob)
+        {
+          return boost::any_cast<boost::shared_ptr<Result> >(ob.get());
+        }
+      };
 
-
-  /**
-   * Cast_Helper for casting to a Boxed_Value type
-   */
-  template<>
-    struct Cast_Helper<Boxed_Value>
-    {
-      typedef Boxed_Value Result_Type;
-
-      static Result_Type cast(const Boxed_Value &ob)
+    /**
+     * Cast_Helper for casting to a const boost::shared_ptr<const> & type
+     */
+    template<typename Result>
+      struct Cast_Helper<const boost::shared_ptr<const Result> &>
       {
-        return ob;    
-      }
-    };
+        typedef typename boost::shared_ptr<const Result> Result_Type;
 
-  /**
-   * Cast_Helper for casting to a const Boxed_Value & type
-   */
-  template<>
-    struct Cast_Helper<const Boxed_Value &>
-    {
-      typedef Boxed_Value Result_Type;
+        static Result_Type cast(const Boxed_Value &ob)
+        {
+          if (!ob.get_type_info().is_const())
+          {
+            return boost::const_pointer_cast<const Result>(boost::any_cast<boost::shared_ptr<Result> >(ob.get()));
+          } else {
+            return boost::any_cast<boost::shared_ptr<const Result> >(ob.get());
+          }
+        }
+      };
 
-      static Result_Type cast(const Boxed_Value &ob)
+
+
+    /**
+     * Cast_Helper for casting to a Boxed_Value type
+     */
+    template<>
+      struct Cast_Helper<Boxed_Value>
       {
-        return ob;    
-      }
-    };
+        typedef const Boxed_Value & Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
+        {
+          return ob;    
+        }
+      };
+
+    /**
+     * Cast_Helper for casting to a const Boxed_Value & type
+     */
+    template<>
+      struct Cast_Helper<const Boxed_Value &>
+      {
+        typedef const Boxed_Value & Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
+        {
+          return ob;    
+        }
+      };
+  }
 
   /**
    * class that is thrown in the event of a bad_boxed_cast. That is,
@@ -502,7 +577,7 @@ namespace chaiscript
   {
     public:
       bad_boxed_cast(const Type_Info &t_from, const std::type_info &t_to) throw()
-        : from(t_from.m_type_info), to(&t_to), m_what("Cannot perform boxed_cast")
+        : from(t_from), to(&t_to), m_what("Cannot perform boxed_cast")
       {
       }
 
@@ -517,7 +592,8 @@ namespace chaiscript
       {
         return m_what.c_str();
       }
-      const std::type_info *from;
+
+      Type_Info from;
       const std::type_info *to;
 
     private:
@@ -530,10 +606,10 @@ namespace chaiscript
    * int &i = boxed_cast<int &>(boxedvalue);
    */
   template<typename Type>
-  typename Cast_Helper<Type>::Result_Type boxed_cast(const Boxed_Value &bv)
+  typename detail::Cast_Helper<Type>::Result_Type boxed_cast(const Boxed_Value &bv)
   {
     try {
-      return Cast_Helper<Type>::cast(bv);
+      return detail::Cast_Helper<Type>::cast(bv);
     } catch (const boost::bad_any_cast &) {
       throw bad_boxed_cast(bv.get_type_info(), typeid(Type));
     }
@@ -548,12 +624,12 @@ namespace chaiscript
     Boxed_POD_Value(const Boxed_Value &v)
       : d(0), i(0), m_isfloat(false)
     {
-      if (!v.get_type_info().m_type_info)
+      if (v.get_type_info().is_unknown())
       {
         throw boost::bad_any_cast();
       }
 
-      const std::type_info &inp_ = *v.get_type_info().m_type_info;
+      const Type_Info &inp_ = v.get_type_info();
 
       if (inp_ == typeid(double))
       {
@@ -669,19 +745,22 @@ namespace chaiscript
     bool m_isfloat;
   };
 
-  /**
-   * Cast_Helper for converting from Boxed_Value to Boxed_POD_Value
-   */
-  template<>
-    struct Cast_Helper<Boxed_POD_Value>
-    {
-      typedef Boxed_POD_Value Result_Type;
-
-      static Result_Type cast(const Boxed_Value &ob)
+  namespace detail
+  {
+    /**
+     * Cast_Helper for converting from Boxed_Value to Boxed_POD_Value
+     */
+    template<>
+      struct Cast_Helper<Boxed_POD_Value>
       {
-        return Boxed_POD_Value(ob);
-      }
-    };
+        typedef Boxed_POD_Value Result_Type;
+
+        static Result_Type cast(const Boxed_Value &ob)
+        {
+          return Boxed_POD_Value(ob);
+        }
+      };
+  }
 
   template<typename T>
     Boxed_Value var(T t)
@@ -689,8 +768,32 @@ namespace chaiscript
       return Boxed_Value(t);
     }
 
+  template<typename T>
+    Boxed_Value const_var(T *t)
+    {
+      return Boxed_Value( const_cast<typename boost::add_const<T>::type>(t) );
+    }
+
+  template<typename T>
+    Boxed_Value const_var(const boost::shared_ptr<T> &t)
+    {
+      return Boxed_Value( boost::const_pointer_cast<typename boost::add_const<T>::type>(t) );
+    }
+
+  template<typename T>
+    Boxed_Value const_var(const boost::reference_wrapper<T> &t)
+    {
+      return Boxed_Value( boost::cref(t.get()) );
+    }
+
+  template<typename T>
+    Boxed_Value const_var(const T &t)
+    {
+      return Boxed_Value(boost::shared_ptr<typename boost::add_const<T>::type >(new T(t)));
+    }
+
   /**
-   * Return true if the two Boxed_Value's share the same internal type
+   * Return true if the two Boxed_Values share the same internal type
    */
   static bool type_match(Boxed_Value l, Boxed_Value r)
   {

include/chaiscript/dispatchkit/dispatchkit.hpp

@@ -13,6 +13,7 @@
 #include <set>
 #include <boost/shared_ptr.hpp>
 #include <boost/lexical_cast.hpp>
+#include <boost/tuple/tuple.hpp>
 #include <stdexcept>
 #include <vector>
 #include <iostream>
@@ -22,6 +23,8 @@
 #include "type_info.hpp"
 #include "proxy_functions.hpp"
 #include "proxy_constructors.hpp"
+#include "dynamic_object.hpp"
+#include "../chaiscript_threading.hpp"
 
 namespace chaiscript
 {
@@ -40,16 +43,26 @@ namespace chaiscript
         return *this;
       }
 
-      template<typename T>
-        void apply(T &t) const
+      //Add a bit of chaiscript to eval during module implementation
+      Module &eval(const std::string &str)
+      {
+        m_evals.push_back(str);
+        return *this;
+      }
+
+
+      template<typename Eval, typename Engine>
+        void apply(Eval &t_eval, Engine &t_engine) const
         {
-          apply(m_typeinfos.begin(), m_typeinfos.end(), t);
-          apply(m_funcs.begin(), m_funcs.end(), t);
+          apply(m_typeinfos.begin(), m_typeinfos.end(), t_engine);
+          apply(m_funcs.begin(), m_funcs.end(), t_engine);
+          apply_eval(m_evals.begin(), m_evals.end(), t_eval);
         }
 
     private:
       std::vector<std::pair<Type_Info, std::string> > m_typeinfos;
       std::vector<std::pair<Proxy_Function, std::string> > m_funcs;
+      std::vector<std::string> m_evals;
 
       template<typename T, typename InItr>
         void apply(InItr begin, InItr end, T &t) const
@@ -60,6 +73,18 @@ namespace chaiscript
             ++begin;
           }
         }
+
+      template<typename T, typename InItr>
+        void apply_eval(InItr begin, InItr end, T &t) const
+        {
+          while (begin != end)
+          {
+            t.eval(*begin);
+            ++begin;
+          }
+        }
+
+
   };
 
   typedef boost::shared_ptr<Module> ModulePtr;
@@ -73,7 +98,8 @@ namespace chaiscript
   {
     public:
       Dispatch_Function(const std::vector<std::pair<std::string, Proxy_Function > > &t_funcs)
-        : m_funcs(t_funcs)
+        : Proxy_Function_Base(std::vector<Type_Info>()),
+          m_funcs(t_funcs)
       {
       }
 
@@ -84,17 +110,17 @@ namespace chaiscript
 
       virtual ~Dispatch_Function() {}
 
-      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params)
+      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) const
       {
-        return dispatch(m_funcs, params);
+        return dispatch(m_funcs.begin(), m_funcs.end(), params);
       }
 
-      virtual std::vector<Type_Info> get_param_types() const
+      virtual int get_arity() const
       {
-        return std::vector<Type_Info>();
+        return -1;
       }
 
-      virtual bool types_match(const std::vector<Boxed_Value> &types) const
+      virtual bool call_match(const std::vector<Boxed_Value> &vals) const
       {
         typedef std::vector<std::pair<std::string, Proxy_Function > > function_vec;
 
@@ -103,7 +129,7 @@ namespace chaiscript
 
         while (begin != end)
         {
-          if (begin->second->types_match(types))
+          if (begin->second->call_match(vals))
           {
             return true;
           } else {
@@ -122,7 +148,24 @@ namespace chaiscript
     private:
       std::vector<std::pair<std::string, Proxy_Function > > m_funcs;
   };  
-  
+
+
+  /**
+   * Exception thrown in the case that a multi method dispatch fails
+   * because no matching function was found
+   * at runtime due to either an arity_error, a guard_error or a bad_boxed_cast
+   * exception
+   */
+  struct reserved_word_error : std::runtime_error
+  {
+    reserved_word_error(const std::string &word) throw()
+      : std::runtime_error("Reserved word not allowed in object name: " + word)
+    {
+    }
+
+    virtual ~reserved_word_error() throw() {}
+  };
+
 
   /**
    * Main class for the dispatchkit. Handles management
@@ -133,12 +176,19 @@ namespace chaiscript
     public:
       typedef std::map<std::string, chaiscript::Type_Info> Type_Name_Map;
       typedef std::map<std::string, Boxed_Value> Scope;
-      typedef std::deque<Scope> Stack;
+      typedef boost::tuples::tuple<std::map<std::string, Boxed_Value>, std::deque<Scope>, bool> StackData;
+      typedef boost::shared_ptr<StackData> Stack;
 
       Dispatch_Engine()
         : m_place_holder(boost::shared_ptr<Placeholder_Object>(new Placeholder_Object()))
       {
-        m_scopes.push_back(Scope());
+        StackData &stack = get_stack_data();
+        stack.get<1>().push_back(Scope());
+      }
+
+      ~Dispatch_Engine()
+      {
+        Boxed_Value::clear_cache();
       }
 
       /**
@@ -146,15 +196,11 @@ namespace chaiscript
        */
       bool add(const Proxy_Function &f, const std::string &name)
       {
-        return add_function(f, name);
-      }
+        validate_object_name(name);
 
-      /**
-       * Add a module's worth of registrations to the system
-       */
-      void add(const ModulePtr &m)
-      {
-        m->apply(*this);
+        StackData &stack = get_stack_data();
+        stack.get<0>().erase(name);
+        return add_function(f, name);
       }
 
       /**
@@ -163,12 +209,16 @@ namespace chaiscript
        */
       void add(const Boxed_Value &obj, const std::string &name)
       {
-        for (int i = m_scopes.size()-1; i >= 0; --i)
+        validate_object_name(name);
+        StackData &stack = get_stack_data();
+
+        for (int i = stack.get<1>().size()-1; i >= 0; --i)
         {
-          std::map<std::string, Boxed_Value>::const_iterator itr = m_scopes[i].find(name);
-          if (itr != m_scopes[i].end())
+          std::map<std::string, Boxed_Value>::const_iterator itr = (stack.get<1>())[i].find(name);
+          if (itr != (stack.get<1>())[i].end())
           {
-            m_scopes[i][name] = Boxed_Value(obj);
+            stack.get<0>().erase(name);
+            (stack.get<1>())[i][name] = obj;
             return;
           }
         }
@@ -181,7 +231,26 @@ namespace chaiscript
        */
       void add_object(const std::string &name, const Boxed_Value &obj)
       {
-        m_scopes.back()[name] = Boxed_Value(obj);
+        StackData &stack = get_stack_data();
+        validate_object_name(name);
+        stack.get<0>().erase(name);
+        stack.get<1>().back()[name] = obj;
+      }
+
+      /**
+       * Adds a new shared object, between all the threads
+       */
+      void add_shared_object(const Boxed_Value &obj, const std::string &name)
+      {
+        StackData &stack = get_stack_data();
+        validate_object_name(name);
+        stack.get<0>().erase(name);
+        
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::unique_lock<boost::shared_mutex> l(m_shared_object_mutex);
+#endif
+
+        m_shared_objects[name] = obj;
       }
 
       /**
@@ -189,7 +258,8 @@ namespace chaiscript
        */
       void new_scope()
       {
-        m_scopes.push_back(Scope());
+        StackData &stack = get_stack_data();
+        stack.get<1>().push_back(Scope());
       }
 
       /**
@@ -197,33 +267,58 @@ namespace chaiscript
        */
       void pop_scope()
       {
-        if (m_scopes.size() > 1)
+        StackData &stack = get_stack_data();
+        if (stack.get<1>().size() > 1)
         {
-          m_scopes.pop_back();
+          Scope &scope(stack.get<1>().back());
+          for (Scope::const_iterator itr = scope.begin();
+               itr != scope.end();
+               ++itr)
+          {
+            stack.get<0>().erase(itr->first);
+          }
+          stack.get<1>().pop_back();
         } else {
           throw std::range_error("Unable to pop global stack");
         }
       }
 
-      /**
-       * Returns the current stack
-       */
-      Stack get_stack()
-      {
-        return m_scopes;
-      }
-
       /**
        * Swaps out the stack with a new stack
        * \returns the old stack
        * \param[in] s The new stack
        */
-      Stack set_stack(Stack s)
+      Stack set_stack(const Stack &s)
       {
-        std::swap(s, m_scopes);
+        Stack old = m_stack_holder->stack;
+        m_stack_holder->stack = s;
+        return old;
+      }
+
+      Stack new_stack() const
+      {
+        Stack s(new Stack::element_type());
+        s->get<1>().push_back(Scope());
+        s->get<2>() = false;
         return s;
       }
 
+      Stack get_stack() const
+      {
+        return m_stack_holder->stack;
+      }
+
+      void sync_cache()
+      {
+        m_stack_holder->stack->get<0>().clear();
+
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::shared_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
+        get_function_cache() = m_functions;
+      }
+
       /**
        * Searches the current stack for an object of the given name
        * includes a special overload for the _ place holder object to
@@ -231,27 +326,58 @@ namespace chaiscript
        */
       Boxed_Value get_object(const std::string &name) const
       {
+        // Is it a placeholder object?
         if (name == "_")
         {
           return m_place_holder;
         }
 
-        for (int i = m_scopes.size()-1; i >= 0; --i)
+        StackData &stack = get_stack_data();
+        std::map<std::string, Boxed_Value> &cache = stack.get<0>();
+
+        // Is it in the cache?
+        std::map<std::string, Boxed_Value>::const_iterator itr = cache.find(name);
+        if (itr != cache.end())
         {
-          std::map<std::string, Boxed_Value>::const_iterator itr = m_scopes[i].find(name);
-          if (itr != m_scopes[i].end())
+          return itr->second;
+        }
+
+        // Is it in the stack?
+        for (int i = stack.get<1>().size()-1; i >= 0; --i)
+        {
+          std::map<std::string, Boxed_Value>::const_iterator stackitr = (stack.get<1>())[i].find(name);
+          if (stackitr != (stack.get<1>())[i].end())
           {
+            cache[name] = stackitr->second;
+            return stackitr->second;
+          }
+        }
+
+        // Are we in the 0th stack and should check the shared objects?
+        if (stack.get<2>())
+        {
+#ifndef CHAISCRIPT_NO_THREADS
+          boost::shared_lock<boost::shared_mutex> l(m_shared_object_mutex);
+#endif
+
+          itr = m_shared_objects.find(name);
+          if (itr != m_shared_objects.end())
+          {
+            cache[name] = itr->second;
             return itr->second;
           }
         }
 
-        std::vector<std::pair<std::string, std::multimap<std::string, Proxy_Function >::mapped_type> > funcs = get_function_impl(name, false);
+        // If all that failed, then check to see if it's a function
+        std::vector<std::pair<std::string, std::multimap<std::string, Proxy_Function >::mapped_type> > funcs = get_function(name);
 
         if (funcs.empty())
         {
           throw std::range_error("Object not known: " + name);
         } else {
-          return Boxed_Value(Proxy_Function(new Dispatch_Function(funcs)));
+          Boxed_Value f(Const_Proxy_Function(new Dispatch_Function(funcs)));
+          cache[name] = f;
+          return f;
         }
       }
 
@@ -260,6 +386,10 @@ namespace chaiscript
        */
       void add(const Type_Info &ti, const std::string &name)
       {
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::unique_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
         m_types.insert(std::make_pair(name, ti));
       }
 
@@ -268,6 +398,10 @@ namespace chaiscript
        */
       Type_Info get_type(const std::string &name) const
       {
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::shared_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
         Type_Name_Map::const_iterator itr = m_types.find(name);
 
         if (itr != m_types.end())
@@ -285,17 +419,21 @@ namespace chaiscript
        */
       std::string get_type_name(const Type_Info &ti) const
       {
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::shared_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
         for (Type_Name_Map::const_iterator itr = m_types.begin();
              itr != m_types.end();
              ++itr)
         {
-          if (itr->second.m_bare_type_info == ti.m_bare_type_info)
+          if (itr->second.bare_equal(ti))
           {
             return itr->first;
           }
         }
 
-        return ti.m_bare_type_info->name();
+        return ti.bare_name();
       }
 
       /**
@@ -303,6 +441,10 @@ namespace chaiscript
        */
       std::vector<std::pair<std::string, Type_Info> > get_types() const
       {
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::shared_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
         return std::vector<std::pair<std::string, Type_Info> >(m_types.begin(), m_types.end());
       }
 
@@ -312,46 +454,181 @@ namespace chaiscript
       std::vector<std::pair<std::string, std::multimap<std::string, Proxy_Function >::mapped_type> > 
         get_function(const std::string &t_name) const
       {
-        return get_function_impl(t_name, true);
+        std::pair<std::multimap<std::string, Proxy_Function >::const_iterator, std::multimap<std::string, Proxy_Function >::const_iterator> range
+          = get_function_cache().equal_range(t_name);
+
+        return  std::vector<std::pair<std::string, std::multimap<std::string, Proxy_Function >::mapped_type> >(range.first, range.second);
       }
- 
+
+      /**
+       * Return true if a function exists
+       */
+      bool function_exists(const std::string &name) const
+      {
+        std::multimap<std::string, Proxy_Function> &functions = get_function_cache();
+        return functions.find(name) != functions.end();
+      }
+
       /**
        * Get a vector of all registered functions
        */
       std::vector<std::pair<std::string, Proxy_Function > > get_functions() const
       {
-        return std::vector<std::pair<std::string, Proxy_Function > >(m_functions.begin(), m_functions.end());
+        std::multimap<std::string, Proxy_Function> &functions = get_function_cache();
+        return std::vector<std::pair<std::string, Proxy_Function > >(functions.begin(), functions.end());
       }
 
+      void add_reserved_word(const std::string &name)
+      {
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::unique_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
+        m_reserved_words.insert(name);
+      }
+
+      Boxed_Value call_function(const std::string &t_name, const std::vector<Boxed_Value> &params) const
+      {
+        std::multimap<std::string, Proxy_Function> &functions = get_function_cache();
+        std::pair<std::multimap<std::string, Proxy_Function >::const_iterator, std::multimap<std::string, Proxy_Function >::const_iterator> range
+          = functions.equal_range(t_name);
+
+        return  dispatch(range.first, range.second, params);
+      }
+
+      /**
+       * Dump object info to stdout
+       */
+        void dump_object(Boxed_Value o) const
+        {
+          Type_Info ti = o.get_type_info();
+          std::cout << (ti.is_const()?"const ":"") << get_type_name(ti) << std::endl;
+        }
+
+      /**
+       * Dump type info to stdout
+       */
+        void dump_type(const Type_Info &type) const
+        {
+          std::cout << (type.is_const()?"const ":"") << get_type_name(type);
+        }
+
+      /**
+       * Dump function to stdout
+       */
+        void dump_function(const std::pair<const std::string, Proxy_Function > &f) const
+        {
+          std::vector<Type_Info> params = f.second->get_param_types();
+          std::string annotation = f.second->annotation();
+
+          if (annotation.size() > 0) {
+            std::cout << annotation;
+          }
+          dump_type(params.front());
+          std::cout << " " << f.first << "(";
+
+          for (std::vector<Type_Info>::const_iterator itr = params.begin() + 1;
+              itr != params.end();
+              )
+          {
+            dump_type(*itr);
+            ++itr;
+
+            if (itr != params.end())
+            {
+              std::cout << ", ";
+            }
+          }
+
+          std::cout << ") " << std::endl;
+        }
+
+      /**
+       * Dump all system info to stdout
+       */
+        void dump_system() const
+        {
+          std::cout << "Registered Types: " << std::endl;
+          std::vector<std::pair<std::string, Type_Info> > types = get_types();
+          for (std::vector<std::pair<std::string, Type_Info> >::const_iterator itr = types.begin();
+              itr != types.end();
+              ++itr)
+          {
+            std::cout << itr->first << ": ";
+            std::cout << itr->second.bare_name();
+            std::cout << std::endl;
+          }
+
+          std::cout << std::endl;  
+          std::vector<std::pair<std::string, Proxy_Function > > funcs = get_functions();
+
+          std::cout << "Functions: " << std::endl;
+          for (std::vector<std::pair<std::string, Proxy_Function > >::const_iterator itr = funcs.begin();
+              itr != funcs.end();
+              ++itr)
+          {
+            dump_function(*itr);
+          }
+          std::cout << std::endl;
+        }
+
+      /**
+       * return true if the Boxed_Value matches the registered type by name
+       */
+      bool is_type(Boxed_Value r, const std::string &user_typename) const
+      {
+        try {
+          if (get_type(user_typename).bare_equal(r.get_type_info()))
+          {
+            return true;
+          }
+        } catch (const std::range_error &) {
+        }
+
+        try {
+          const Dynamic_Object &d = boxed_cast<const Dynamic_Object &>(r);
+          return d.get_type_name() == user_typename;
+        } catch (const std::bad_cast &) {
+        }
+
+        return false;
+      }
+
+      std::string type_name(Boxed_Value obj) const
+      {
+        return get_type_name(obj.get_type_info());
+      }
+
+
     private:
       /**
-       * Implementation detail for searching for a function by name.
-       * Looks for all registered global functions and optionally for an object
-       * in scope with the same name
+       * Returns the current stack
+       * make const/non const versions
        */
-      std::vector<std::pair<std::string, std::multimap<std::string, Proxy_Function >::mapped_type> > 
-        get_function_impl(const std::string &t_name, bool include_objects) const
+      StackData &get_stack_data() const
       {
-        std::vector<std::pair<std::string, std::multimap<std::string, Proxy_Function >::mapped_type> > funcs;
+        return *(m_stack_holder->stack);
+      }
 
-        if (include_objects)
+      std::multimap<std::string, Proxy_Function> &get_function_cache() const
+      {
+        return m_stack_holder->function_cache;
+      }
+
+
+      /**
+       * Throw a reserved_word exception if the name is not allowed
+       */
+      void validate_object_name(const std::string &name) const
+      {
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::shared_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
+        if (m_reserved_words.find(name) != m_reserved_words.end())
         {
-          try {
-            funcs.insert(funcs.end(), 
-              std::make_pair(
-                  t_name, 
-                  boxed_cast<std::multimap<std::string, Proxy_Function >::mapped_type>(get_object(t_name)))
-                );
-          } catch (const bad_boxed_cast &) {
-          } catch (const std::range_error &) {
-          }
+          throw reserved_word_error(name);
         }
-
-        std::pair<std::multimap<std::string, Proxy_Function >::const_iterator, std::multimap<std::string, Proxy_Function >::const_iterator> range
-          = m_functions.equal_range(t_name);
-
-        funcs.insert(funcs.end(), range.first, range.second);
-        return funcs;
       }
 
       /**
@@ -361,6 +638,10 @@ namespace chaiscript
        */
       bool add_function(const Proxy_Function &f, const std::string &t_name)
       {
+#ifndef CHAISCRIPT_NO_THREADS
+        boost::unique_lock<boost::shared_mutex> l(m_mutex);
+#endif
+
         std::pair<std::multimap<std::string, Proxy_Function >::const_iterator, std::multimap<std::string, Proxy_Function >::const_iterator> range
           = m_functions.equal_range(t_name);
 
@@ -374,109 +655,41 @@ namespace chaiscript
         }
 
         m_functions.insert(std::make_pair(t_name, f));
+        get_function_cache().insert(std::make_pair(t_name, f));
+
         return true;
       }
 
-      std::deque<Scope> m_scopes;
+#ifndef CHAISCRIPT_NO_THREADS
+      mutable boost::shared_mutex m_mutex;
+      mutable boost::shared_mutex m_shared_object_mutex;
+#endif
+
+      struct Stack_Holder
+      {
+        Stack_Holder()
+          : stack(new StackData())
+        {
+          stack->get<2>() = true;
+        }
+
+        Stack stack;
+
+        std::multimap<std::string, Proxy_Function> function_cache;
+      };  
+
+      chaiscript::threading::Thread_Storage<Stack_Holder> m_stack_holder;
+
+
+      std::multimap<std::string, Proxy_Function> m_functions;
+      std::map<std::string, Boxed_Value> m_shared_objects;
 
-      std::multimap<std::string, Proxy_Function > m_functions;
       Type_Name_Map m_types;
       Boxed_Value m_place_holder;
+
+      std::set<std::string> m_reserved_words;
   };
 
-  /**
-   * Dump object info to stdout
-   */
-  void dump_object(Boxed_Value o, const Dispatch_Engine &e)
-  {
-    Type_Info ti = o.get_type_info();
-    std::cout << (ti.m_is_const?"const ":"") << e.get_type_name(ti) << std::endl;
-  }
-
-  /**
-   * Dump type info to stdout
-   */
-  void dump_type(const Type_Info &type, const Dispatch_Engine &e)
-  {
-    std::cout << (type.m_is_const?"const ":"") << e.get_type_name(type);
-  }
-
-  /**
-   * Dump function to stdout
-   */
-  void dump_function(const std::pair<const std::string, Proxy_Function > &f, const Dispatch_Engine &e)
-  {
-    std::vector<Type_Info> params = f.second->get_param_types();
-    std::string annotation = f.second->annotation();
-
-    if (annotation.size() > 0) {
-        std::cout << annotation;
-    }
-    dump_type(params.front(), e);
-    std::cout << " " << f.first << "(";
-
-    for (std::vector<Type_Info>::const_iterator itr = params.begin() + 1;
-         itr != params.end();
-         )
-    {
-      dump_type(*itr, e);
-      ++itr;
-
-      if (itr != params.end())
-      {
-        std::cout << ", ";
-      }
-    }
-
-    std::cout << ") " << std::endl;
-  }
-
-  /**
-   * Dump all system info to stdout
-   */
-  void dump_system(const Dispatch_Engine &s)
-  {
-    std::cout << "Registered Types: " << std::endl;
-    std::vector<std::pair<std::string, Type_Info> > types = s.get_types();
-    for (std::vector<std::pair<std::string, Type_Info> >::const_iterator itr = types.begin();
-         itr != types.end();
-         ++itr)
-    {
-      std::cout << itr->first << ": ";
-      std::cout << itr->second.m_bare_type_info->name();
-      std::cout << std::endl;
-    }
-
-    std::cout << std::endl;  
-    std::vector<std::pair<std::string, Proxy_Function > > funcs = s.get_functions();
-
-    std::cout << "Functions: " << std::endl;
-    for (std::vector<std::pair<std::string, Proxy_Function > >::const_iterator itr = funcs.begin();
-         itr != funcs.end();
-         ++itr)
-    {
-      dump_function(*itr, s);
-    }
-    std::cout << std::endl;
-  }
-
-  /**
-   * return true if the Boxed_Value matches the registered type by name
-   */
-  bool is_type(const Dispatch_Engine &e, const std::string &user_typename, Boxed_Value r)
-  {
-    try {
-      return e.get_type(user_typename) == r.get_type_info();
-    } catch (const std::range_error &) {
-      return false;
-    }
-  }
-
-  std::string type_name(const Dispatch_Engine &e, Boxed_Value obj)
-  {
-    return e.get_type_name(obj.get_type_info());
-  }
-
 }
 
 #endif

include/chaiscript/dispatchkit/dynamic_object.hpp

@@ -0,0 +1,226 @@
+#ifndef __DYNAMIC_OBJECT_HPP__
+#define __DYNAMIC_OBJECT_HPP__
+
+#include <boost/optional.hpp>
+
+namespace chaiscript
+{
+  class Dynamic_Object
+  {
+    public:
+      Dynamic_Object(const std::string &t_type_name)
+        : m_type_name(t_type_name)
+      {
+      }
+
+      std::string get_type_name() const
+      {
+        return m_type_name;
+      }
+
+      Boxed_Value get_attr(const std::string &t_attr_name)
+      {
+        return m_attrs[t_attr_name];
+      }
+
+      std::map<std::string, Boxed_Value> get_attrs()
+      {
+        return m_attrs;
+      }
+
+    private:
+      std::string m_type_name;
+
+      std::map<std::string, Boxed_Value> m_attrs;
+  };
+
+  struct Dynamic_Object_Attribute
+  {
+    static Boxed_Value func(const std::string &t_type_name, const std::string &t_attr_name,
+        Dynamic_Object &t_do)
+    {
+      if (t_do.get_type_name() != t_type_name) 
+      {
+        throw bad_boxed_cast("Dynamic object type mismatch");
+      }
+
+      return t_do.get_attr(t_attr_name);
+    }
+  };
+
+  /**
+   * A Proxy_Function implementation designed for calling a function
+   * that is automatically guarded based on the first param based on the
+   * param's type name
+   */
+  class Dynamic_Object_Function : public Proxy_Function_Base
+  {
+    public:
+      Dynamic_Object_Function(
+          const std::string &t_type_name,
+          const Proxy_Function &t_func,
+          const boost::optional<Type_Info> &t_ti = boost::optional<Type_Info>())
+        : Proxy_Function_Base(t_func->get_param_types()),
+          m_type_name(t_type_name), m_func(t_func), m_ti(t_ti)
+      {
+        assert( (t_func->get_arity() > 0 || t_func->get_arity() < 0)
+            && "Programming error, Dynamic_Object_Function must have at least one parameter (this)");
+      }
+
+      virtual ~Dynamic_Object_Function() {}
+
+      virtual bool operator==(const Proxy_Function_Base &f) const
+      {
+        try
+        {
+          const Dynamic_Object_Function &df = dynamic_cast<const Dynamic_Object_Function &>(f);
+          return df.m_type_name == m_type_name && (*df.m_func) == (*m_func);
+        } catch (const std::bad_cast &) {
+          return false;
+        }
+      }
+
+      virtual bool call_match(const std::vector<Boxed_Value> &vals) const
+      {
+        if (dynamic_object_typename_match(vals, m_type_name, m_ti))
+        {
+          return m_func->call_match(vals);
+        } else {
+          return false;
+        }
+      }    
+
+      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) const
+      {
+        if (dynamic_object_typename_match(params, m_type_name, m_ti))
+        {
+          return (*m_func)(params);
+        } else {
+          throw guard_error();
+        } 
+      }
+
+      virtual int get_arity() const
+      {
+	return m_func->get_arity();
+      }
+
+      virtual std::string annotation() const
+      {
+        return m_func->annotation();
+      }
+
+    private:
+      static bool dynamic_object_typename_match(const std::vector<Boxed_Value> &bvs, const std::string &name,
+          const boost::optional<Type_Info> &ti) 
+      {
+        if (bvs.size() > 0)
+        {
+          try {
+            const Dynamic_Object &d = boxed_cast<const Dynamic_Object &>(bvs[0]);
+            return name == "Dynamic_Object" || d.get_type_name() == name;
+          } catch (const std::bad_cast &) {
+            if (ti)
+            {
+              return bvs[0].get_type_info().bare_equal(*ti);
+            } else {
+              return false;
+            }
+          }
+        } else {
+          return false;
+        }
+      }
+
+      std::string m_type_name;
+      Proxy_Function m_func;
+      boost::optional<Type_Info> m_ti;
+
+  };
+
+
+  /**
+   * A Proxy_Function implementation designed for creating a new
+   * Dynamic_Object
+   * that is automatically guarded based on the first param based on the
+   * param's type name
+   */
+  class Dynamic_Object_Constructor : public Proxy_Function_Base
+  {
+    public:
+      Dynamic_Object_Constructor(
+          const std::string &t_type_name,
+          const Proxy_Function &t_func)
+        : Proxy_Function_Base(build_type_list(t_func->get_param_types())),
+          m_type_name(t_type_name), m_func(t_func)
+      {
+        assert( (t_func->get_arity() > 0 || t_func->get_arity() < 0)
+            && "Programming error, Dynamic_Object_Function must have at least one parameter (this)");
+      }
+
+      static std::vector<Type_Info> build_type_list(const std::vector<Type_Info> &tl)
+      {
+        std::vector<Type_Info>::const_iterator begin = tl.begin();
+        std::vector<Type_Info>::const_iterator end = tl.end();
+
+        if (begin != end)
+        {
+          ++begin;
+        }
+
+        return std::vector<Type_Info>(begin, end);
+      }
+
+      virtual ~Dynamic_Object_Constructor() {}
+
+      virtual bool operator==(const Proxy_Function_Base &f) const
+      {
+        try
+        {
+          const Dynamic_Object_Constructor &dc = dynamic_cast<const Dynamic_Object_Constructor&>(f);
+          return dc.m_type_name == m_type_name && (*dc.m_func) == (*m_func);
+        } catch (const std::bad_cast &) {
+          return false;
+        }
+      }
+
+      virtual bool call_match(const std::vector<Boxed_Value> &vals) const
+      {
+        std::vector<Boxed_Value> new_vals;
+        new_vals.push_back(Boxed_Value(Dynamic_Object(m_type_name)));
+        new_vals.insert(new_vals.end(), vals.begin(), vals.end());
+
+        return m_func->call_match(new_vals);
+      }    
+
+      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) const
+      {
+        std::vector<Boxed_Value> new_params;
+        chaiscript::Boxed_Value bv = var(Dynamic_Object(m_type_name));
+        new_params.push_back(bv);
+        new_params.insert(new_params.end(), params.begin(), params.end());
+
+        (*m_func)(new_params);
+
+        return bv;
+      }
+
+      virtual int get_arity() const
+      {
+        // "this" is not considered part of the arity
+	return m_func->get_arity() - 1; 
+      }
+
+      virtual std::string annotation() const
+      {
+        return m_func->annotation();
+      }
+
+    private:
+      std::string m_type_name;
+      Proxy_Function m_func;
+
+  };
+}
+#endif
+

include/chaiscript/dispatchkit/function_call.hpp

@@ -4,13 +4,6 @@
 // and Jason Turner (lefticus@gmail.com)
 // http://www.chaiscript.com
 
-#include <boost/preprocessor.hpp>
-
-#define addparam(z,n,text)  params.push_back(boost::is_reference<Param ## n>::value?Boxed_Value(boost::ref(BOOST_PP_CAT(p, n))):Boxed_Value(BOOST_PP_CAT(p, n) ));
-#define curry(z,n,text)  BOOST_PP_CAT(_, BOOST_PP_INC(n))
-
-
-#ifndef  BOOST_PP_IS_ITERATING
 #ifndef __function_call_hpp__
 #define __function_call_hpp__
 
@@ -20,50 +13,7 @@
 #include <string>
 #include <vector>
 #include "proxy_functions.hpp"
-
-namespace chaiscript
-{
-  /**
-   * Internal helper class for handling the return
-   * value of a build_function_caller
-   */
-  template<typename Ret>
-    class Function_Caller_Ret
-    {
-      public:
-        Function_Caller_Ret()
-        {
-        }
-
-        Ret call(const std::vector<std::pair<std::string, Proxy_Function > > &t_funcs, 
-                 const std::vector<Boxed_Value> &params)
-        {
-          return boxed_cast<Ret>(dispatch(t_funcs, params));
-        }
-    };
-
-  /**
-   * Specialization for void return types
-   */
-  template<>
-    class Function_Caller_Ret<void>
-    {
-      public:
-        Function_Caller_Ret()
-        {
-        }
-
-        void call(const std::vector<std::pair<std::string, Proxy_Function > > &t_funcs, 
-                  const std::vector<Boxed_Value> &params)
-        {
-          dispatch(t_funcs, params);
-        }
-    };
-}
-
-#define BOOST_PP_ITERATION_LIMITS ( 0, 9 )
-#define BOOST_PP_FILENAME_1 <chaiscript/dispatchkit/function_call.hpp>
-#include BOOST_PP_ITERATE()
+#include "function_call_detail.hpp"
 
 namespace chaiscript
 {
@@ -80,7 +30,7 @@ namespace chaiscript
       functor(const std::vector<std::pair<std::string, Proxy_Function > > &funcs)
       {
         FunctionType *p=0;
-        return build_function_caller_helper(p, funcs);
+        return detail::build_function_caller_helper(p, funcs);
       }
 
   /**
@@ -118,39 +68,5 @@ namespace chaiscript
 
 }
 
-# endif
-#else
-# define n BOOST_PP_ITERATION()
-
-namespace chaiscript
-{
-  /**
-   * used internally for unwrapping a function call's types
-   */
-  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
-    Ret function_caller(const std::vector<std::pair<std::string, Proxy_Function > > &funcs 
-        BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_BINARY_PARAMS(n, Param, p) )
-    {
-      std::vector<Boxed_Value> params;
-
-      BOOST_PP_REPEAT(n, addparam, ~)
-
-      return Function_Caller_Ret<Ret>().call(funcs, params);
-    }
-
-  /**
-   * used internally for unwrapping a function call's types
-   */
-  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
-    boost::function<Ret (BOOST_PP_ENUM_PARAMS(n, Param)) > 
-      build_function_caller_helper(Ret (BOOST_PP_ENUM_PARAMS(n, Param)), const std::vector<std::pair<std::string, Proxy_Function> > &funcs)
-      {
-        return boost::bind(&function_caller<Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, Param)>, funcs
-            BOOST_PP_ENUM_TRAILING(n, curry, ~));
-      }
-
-
-}
-
 #endif
 

include/chaiscript/dispatchkit/function_call_detail.hpp

@@ -0,0 +1,98 @@
+// This file is distributed under the BSD License.
+// See "license.txt" for details.
+// Copyright 2009, Jonathan Turner (jturner@minnow-lang.org)
+// and Jason Turner (lefticus@gmail.com)
+// http://www.chaiscript.com
+
+#include <boost/preprocessor.hpp>
+
+#define addparam(z,n,text)  params.push_back(boost::is_reference<Param ## n>::value?Boxed_Value(boost::ref(BOOST_PP_CAT(p, n))):Boxed_Value(BOOST_PP_CAT(p, n) ));
+#define curry(z,n,text)  BOOST_PP_CAT(_, BOOST_PP_INC(n))
+
+
+#ifndef  BOOST_PP_IS_ITERATING
+#ifndef __function_call_detail_hpp__
+#define __function_call_detail_hpp__
+
+#include <boost/shared_ptr.hpp>
+#include <boost/bind.hpp>
+#include <boost/function.hpp>
+#include <string>
+#include <vector>
+#include "proxy_functions.hpp"
+
+namespace chaiscript
+{
+  namespace detail
+  {
+    /**
+     * Internal helper class for handling the return
+     * value of a build_function_caller
+     */
+    template<typename Ret>
+      struct Function_Caller_Ret
+      {
+        static Ret call(const std::vector<std::pair<std::string, Proxy_Function > > &t_funcs, 
+            const std::vector<Boxed_Value> &params)
+        {
+          return boxed_cast<Ret>(dispatch(t_funcs, params));
+        }
+      };
+
+    /**
+     * Specialization for void return types
+     */
+    template<>
+      struct Function_Caller_Ret<void>
+      {
+        static void call(const std::vector<std::pair<std::string, Proxy_Function > > &t_funcs, 
+            const std::vector<Boxed_Value> &params)
+        {
+          dispatch(t_funcs, params);
+        }
+      };
+  }
+}
+
+#define BOOST_PP_ITERATION_LIMITS ( 0, 9 )
+#define BOOST_PP_FILENAME_1 <chaiscript/dispatchkit/function_call_detail.hpp>
+#include BOOST_PP_ITERATE()
+
+# endif
+#else
+# define n BOOST_PP_ITERATION()
+
+namespace chaiscript
+{
+  namespace detail
+  {
+    /**
+     * used internally for unwrapping a function call's types
+     */
+    template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
+      Ret function_caller(const std::vector<std::pair<std::string, Proxy_Function > > &funcs 
+          BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_BINARY_PARAMS(n, Param, p) )
+      {
+        std::vector<Boxed_Value> params;
+
+        BOOST_PP_REPEAT(n, addparam, ~)
+
+          return Function_Caller_Ret<Ret>::call(funcs, params);
+      }
+
+    /**
+     * used internally for unwrapping a function call's types
+     */
+    template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
+      boost::function<Ret (BOOST_PP_ENUM_PARAMS(n, Param)) > 
+      build_function_caller_helper(Ret (BOOST_PP_ENUM_PARAMS(n, Param)), const std::vector<std::pair<std::string, Proxy_Function> > &funcs)
+      {
+        return boost::bind(&function_caller<Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, Param)>, funcs
+            BOOST_PP_ENUM_TRAILING(n, curry, ~));
+      }
+
+  }
+}
+
+#endif
+

include/chaiscript/dispatchkit/handle_return.hpp

@@ -0,0 +1,99 @@
+// This file is distributed under the BSD License.
+// See "license.txt" for details.
+// Copyright 2009, Jonathan Turner (jturner@minnow-lang.org)
+// and Jason Turner (lefticus@gmail.com)
+// http://www.chaiscript.com
+
+#ifndef __handle_return_hpp__
+#define __handle_return_hpp__
+
+#include "boxed_value.hpp"
+#include "type_info.hpp"
+#include <string>
+#include <boost/function.hpp>
+
+#include <stdexcept>
+#include <vector>
+
+namespace chaiscript
+{
+  /**
+   * Used internally for handling a return value from a Proxy_Function call
+   */
+  template<typename Ret>
+    struct Handle_Return
+    {
+      static Boxed_Value handle(const Ret &r)
+      {
+        return Boxed_Value(r);
+      }
+    };
+
+  template<typename Ret>
+    struct Handle_Return<boost::shared_ptr<Ret> &>
+    {
+      static Boxed_Value handle(const boost::shared_ptr<Ret> &r)
+      {
+        return Boxed_Value(r);
+      }
+    };
+
+  template<typename Ret>
+    struct Handle_Return<const boost::shared_ptr<Ret> &>
+    {
+      static Boxed_Value handle(const boost::shared_ptr<Ret> &r)
+      {
+        return Boxed_Value(r);
+      }
+    };
+
+  /**
+   * Used internally for handling a return value from a Proxy_Function call
+   */
+  template<typename Ret>
+    struct Handle_Return<Ret &>
+    {
+      static Boxed_Value handle(Ret &r)
+      {
+        return Boxed_Value(boost::ref(r));
+      }
+    };
+
+  /**
+   * Used internally for handling a return value from a Proxy_Function call
+   */
+  template<>
+    struct Handle_Return<Boxed_Value>
+    {
+      static Boxed_Value handle(const Boxed_Value &r)
+      {
+        return r;
+      }
+    };
+
+  /**
+   * Used internally for handling a return value from a Proxy_Function call
+   */
+  template<>
+    struct Handle_Return<Boxed_Value &>
+    {
+      static Boxed_Value handle(const Boxed_Value &r)
+      {
+        return r;
+      }
+    };
+
+  /**
+   * Used internally for handling a return value from a Proxy_Function call
+   */
+  template<>
+    struct Handle_Return<void>
+    {
+      static Boxed_Value handle()
+      {
+        return Boxed_Value(Boxed_Value::Void_Type());
+      }
+    };
+}
+
+#endif

include/chaiscript/dispatchkit/proxy_constructors.hpp

@@ -26,7 +26,7 @@ namespace chaiscript
     Proxy_Function constructor()
     {
       T *f = 0;
-      return (build_constructor_(f));
+      return (detail::build_constructor_(f));
     }
 }
 
@@ -35,28 +35,31 @@ namespace chaiscript
 
 namespace chaiscript
 {
-  /**
-   * A constructor function, used for creating a new object
-   * of a given type with a given set of params
-   */
-  template<typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
-    boost::shared_ptr<Class> constructor_( BOOST_PP_ENUM_BINARY_PARAMS(n, Param, p) )
-    {
-      return boost::shared_ptr<Class>(new Class( BOOST_PP_ENUM_PARAMS(n, p) ));
-    }
+  namespace detail
+  {
+    /**
+     * A constructor function, used for creating a new object
+     * of a given type with a given set of params
+     */
+    template<typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
+      boost::shared_ptr<Class> constructor_( BOOST_PP_ENUM_BINARY_PARAMS(n, Param, p) )
+      {
+        return boost::shared_ptr<Class>(new Class( BOOST_PP_ENUM_PARAMS(n, p) ));
+      }
 
-  /**
-   * Helper function for build a constructor function
-   * example:
-   * dispatchengine.register_function(build_constructor<MyClass, int, const std::string&>, "MyClass");
-   * \todo See if it is possible to make this not be a variadic function
-   */
-  template<typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
-    Proxy_Function build_constructor_(Class (*)(BOOST_PP_ENUM_PARAMS(n, Param)))
-    {
-      typedef boost::shared_ptr<Class> (sig)(BOOST_PP_ENUM_PARAMS(n, Param));
-      return Proxy_Function(new Proxy_Function_Impl<sig>(boost::function<sig>(&(constructor_<Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, Param)>))));
-    }
+    /**
+     * Helper function for build a constructor function
+     * example:
+     * dispatchengine.register_function(build_constructor<MyClass, int, const std::string&>, "MyClass");
+     * \todo See if it is possible to make this not be a variadic function
+     */
+    template<typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
+      Proxy_Function build_constructor_(Class (*)(BOOST_PP_ENUM_PARAMS(n, Param)))
+      {
+        typedef boost::shared_ptr<Class> (sig)(BOOST_PP_ENUM_PARAMS(n, Param));
+        return Proxy_Function(new Proxy_Function_Impl<sig>(boost::function<sig>(&(constructor_<Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, Param)>))));
+      }
+  }
 }
 
 #endif

include/chaiscript/dispatchkit/proxy_functions.hpp

@@ -4,109 +4,21 @@
 // and Jason Turner (lefticus@gmail.com)
 // http://www.chaiscript.com
 
-#include <boost/preprocessor.hpp>
 
-#define gettypeinfo(z,n,text)  ti.push_back(Get_Type_Info<Param ## n>::get());
-#define casthelper(z,n,text) ,chaiscript::boxed_cast< Param ## n >(params[n])
-#define comparetype(z,n,text)  && ((Get_Type_Info<Param ## n>::get() == params[n].get_type_info()))
-#define trycast(z,n,text) chaiscript::boxed_cast<Param ## n>(params[n]);
-
-
-#ifndef  BOOST_PP_IS_ITERATING
 #ifndef __proxy_functions_hpp__
 #define __proxy_functions_hpp__
 
+
 #include "boxed_value.hpp"
 #include "type_info.hpp"
 #include <string>
 #include <boost/function.hpp>
-#include <boost/bind.hpp>
-#include <boost/lexical_cast.hpp>
-
 #include <stdexcept>
 #include <vector>
+#include "proxy_functions_detail.hpp"
 
 namespace chaiscript
 {
-  /**
-   * Used internally for handling a return value from a Proxy_Function call
-   */
-  template<typename Ret>
-    struct Handle_Return
-    {
-      Boxed_Value operator()(const boost::function<Ret ()> &f)
-      {
-        return Boxed_Value(f());
-      }
-    };
-
-  template<typename Ret>
-    struct Handle_Return<boost::shared_ptr<Ret> &>
-    {
-      Boxed_Value operator()(const boost::function<boost::shared_ptr<Ret> & ()> &f)
-      {
-        return Boxed_Value(f());
-      }
-    };
-
-  template<typename Ret>
-    struct Handle_Return<const boost::shared_ptr<Ret> &>
-    {
-      Boxed_Value operator()(const boost::function<const boost::shared_ptr<Ret> & ()> &f)
-      {
-        return Boxed_Value(f());
-      }
-    };
-
-  /**
-   * Used internally for handling a return value from a Proxy_Function call
-   */
-  template<typename Ret>
-    struct Handle_Return<Ret &>
-    {
-      Boxed_Value operator()(const boost::function<Ret &()> &f)
-      {
-        return Boxed_Value(boost::ref(f()));
-      }
-    };
-
-  /**
-   * Used internally for handling a return value from a Proxy_Function call
-   */
-  template<>
-    struct Handle_Return<Boxed_Value>
-    {
-      Boxed_Value operator()(const boost::function<Boxed_Value ()> &f)
-      {
-        return f();
-      }
-    };
-
-  /**
-   * Used internally for handling a return value from a Proxy_Function call
-   */
-  template<>
-    struct Handle_Return<Boxed_Value &>
-    {
-      Boxed_Value operator()(const boost::function<Boxed_Value &()> &f)
-      {
-        return f();
-      }
-    };
-
-  /**
-   * Used internally for handling a return value from a Proxy_Function call
-   */
-  template<>
-    struct Handle_Return<void>
-    {
-      Boxed_Value operator()(const boost::function<void ()> &f)
-      {
-        f();
-        return Boxed_Value(Boxed_Value::Void_Type());
-      }
-    };
-
   /**
    * Helper for building a list of parameters for calling a Proxy_Function
    * it does automatic conversion to Boxed_Value types via operator<<
@@ -138,30 +50,6 @@ namespace chaiscript
     std::vector<Boxed_Value> objects;
   };
 
-  /**
-   * Exception thrown when there is a mismatch in number of
-   * parameters during Proxy_Function execution
-   */
-  struct arity_error : std::range_error
-  {
-    arity_error(int t_got, int t_expected)
-      : std::range_error("Function dispatch arity mismatch"),
-        got(t_got), expected(t_expected)
-    {
-    }
-
-    virtual ~arity_error() throw() {}
-    int got;
-    int expected;
-  };
-}
-
-#define BOOST_PP_ITERATION_LIMITS ( 0, 10 )
-#define BOOST_PP_FILENAME_1 <chaiscript/dispatchkit/proxy_functions.hpp>
-#include BOOST_PP_ITERATE()
-
-namespace chaiscript
-{
   /**
    * Pure virtual base class for all Proxy_Function implementations
    * Proxy_Functions are a type erasure of type safe C++
@@ -174,14 +62,84 @@ namespace chaiscript
   {
     public:
       virtual ~Proxy_Function_Base() {}
-      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) = 0;
-      virtual std::vector<Type_Info> get_param_types() const = 0;
+      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) const = 0;
+
+      std::vector<Type_Info> get_param_types() const { return m_types; }
+
       virtual bool operator==(const Proxy_Function_Base &) const = 0;
-      virtual bool types_match(const std::vector<Boxed_Value> &types) const = 0;
+      virtual bool call_match(const std::vector<Boxed_Value> &vals) const = 0;
+
+      //! Return true if the function is a possible match
+      //! to the passed in values
+      bool filter(const std::vector<Boxed_Value> &vals) const
+      {
+        int arity = get_arity();
+
+        if (arity < 0)
+        {
+          return true;
+        } else if (size_t(arity) == vals.size()) {
+          if (arity == 0)
+          {
+            return true;
+          } else {
+            const std::vector<Type_Info> &types = get_param_types();
+
+            if (types.size() < 2)
+            {
+              return true;
+            }
+
+            const Type_Info &ti = types[1];
+
+            if (ti.is_unknown() || vals[0].get_type_info().is_unknown()
+                || ti.bare_equal(user_type<Boxed_Value>())
+                || ti.bare_equal(user_type<Boxed_POD_Value>())
+                || ti.bare_equal(vals[0].get_type_info()))
+            {
+              return true;
+            } else {
+              return false;
+            }
+          }
+        } else {
+          return false;
+        }
+      }
+
+      virtual int get_arity() const = 0;
+
       virtual std::string annotation() const = 0;
+
+    protected:
+      Proxy_Function_Base(const std::vector<Type_Info> &t_types)
+        : m_types(t_types)
+      {
+      }
+
+      bool compare_types(const std::vector<Type_Info> &tis, const std::vector<Boxed_Value> &bvs) const
+      {
+        if (tis.size() - 1 != bvs.size())
+        {
+          return false;
+        } else {
+          const int size = bvs.size();
+          for (int i = 0; i < size; ++i)
+          {
+            if (!(tis[i+1].bare_equal(bvs[i].get_type_info()) && tis[i+1].is_const() >= bvs[i].get_type_info().is_const() ))
+            {
+              return false;
+            }
+          }
+        }
+        return true;
+      }
+
+      std::vector<Type_Info> m_types;
   };
 
   typedef boost::shared_ptr<Proxy_Function_Base> Proxy_Function;
+  typedef boost::shared_ptr<const Proxy_Function_Base> Const_Proxy_Function;
 
   /**
    * Exception thrown if a function's guard fails to execute
@@ -209,7 +167,8 @@ namespace chaiscript
           int t_arity=-1,
           const std::string &t_description = "",
           const Proxy_Function &t_guard = Proxy_Function())
-        : m_f(t_f), m_arity(t_arity), m_description(t_description), m_guard(t_guard)
+        : Proxy_Function_Base(build_param_type_list(t_arity)),
+          m_f(t_f), m_arity(t_arity), m_description(t_description), m_guard(t_guard)
       {
       }
 
@@ -218,15 +177,15 @@ namespace chaiscript
         return false;
       }
 
-      virtual bool types_match(const std::vector<Boxed_Value> &types) const
+      virtual bool call_match(const std::vector<Boxed_Value> &vals) const
       {
-          return (m_arity < 0 || types.size() == size_t(m_arity))
-            && test_guard(types);
+          return (m_arity < 0 || vals.size() == size_t(m_arity))
+            && test_guard(vals);
       }    
 
       virtual ~Dynamic_Proxy_Function() {}
 
-      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params)
+      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) const
       {
         if (m_arity < 0 || params.size() == size_t(m_arity))
         {
@@ -243,23 +202,9 @@ namespace chaiscript
         } 
       }
 
-      virtual std::vector<Type_Info> get_param_types() const
+      virtual int get_arity() const
       {
-        std::vector<Type_Info> types;
-
-        types.push_back(Get_Type_Info<Boxed_Value>::get());
-
-        if (m_arity >= 0)
-        {
-          for (int i = 0; i < m_arity; ++i)
-          {
-            types.push_back(Get_Type_Info<Boxed_Value>::get());
-          }
-        } else {
-          types.push_back(Get_Type_Info<std::vector<Boxed_Value> >::get());
-        }
-
-        return types;
+	return m_arity;
       }
 
       virtual std::string annotation() const
@@ -284,6 +229,25 @@ namespace chaiscript
         }
       }
 
+      static std::vector<Type_Info> build_param_type_list(int arity)
+      {
+        std::vector<Type_Info> types;
+
+        types.push_back(detail::Get_Type_Info<Boxed_Value>::get());
+
+        if (arity >= 0)
+        {
+          for (int i = 0; i < arity; ++i)
+          {
+            types.push_back(detail::Get_Type_Info<Boxed_Value>::get());
+          }
+        } else {
+          types.push_back(detail::Get_Type_Info<std::vector<Boxed_Value> >::get());
+        }
+
+        return types;
+      }
+
       boost::function<Boxed_Value (const std::vector<Boxed_Value> &)> m_f;
       int m_arity;
       std::string m_description;
@@ -307,9 +271,10 @@ namespace chaiscript
   class Bound_Function : public Proxy_Function_Base
   {
     public:
-      Bound_Function(const Proxy_Function &t_f, 
+      Bound_Function(const Const_Proxy_Function &t_f, 
                      const std::vector<Boxed_Value> &t_args)
-        : m_f(t_f), m_args(t_args)
+        : Proxy_Function_Base(std::vector<Type_Info>()),
+          m_f(t_f), m_args(t_args), m_arity(m_f->get_arity()<0?-1:(m_f->get_arity() - m_args.size()))
       {
       }
 
@@ -320,13 +285,12 @@ namespace chaiscript
 
       virtual ~Bound_Function() {}
 
-      virtual bool types_match(const std::vector<Boxed_Value> &types) const
+      virtual bool call_match(const std::vector<Boxed_Value> &vals) const
       {
-        std::vector<Boxed_Value> params = build_param_list(types);
-        return m_f->types_match(params);
+        return m_f->call_match(build_param_list(vals));
       }
 
-      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params)
+      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) const
       {
         return (*m_f)(build_param_list(params));
       }
@@ -343,7 +307,7 @@ namespace chaiscript
         while (true)
         {
           while (barg != m_args.end() 
-                 && !(barg->get_type_info() == Get_Type_Info<Placeholder_Object>::get()))
+                 && !(barg->get_type_info() == detail::Get_Type_Info<Placeholder_Object>::get()))
           {
             args.push_back(*barg);
             ++barg;
@@ -356,7 +320,7 @@ namespace chaiscript
           }
 
           if (barg != m_args.end() 
-              && barg->get_type_info() == Get_Type_Info<Placeholder_Object>::get())
+              && barg->get_type_info() == detail::Get_Type_Info<Placeholder_Object>::get())
           {
             ++barg;
           } 
@@ -369,9 +333,9 @@ namespace chaiscript
         return args;
       }
 
-      virtual std::vector<Type_Info> get_param_types() const
+      virtual int get_arity() const
       {
-        return std::vector<Type_Info>();
+        return m_arity;
       }
 
       virtual std::string annotation() const
@@ -380,8 +344,9 @@ namespace chaiscript
       }
 
     private:
-      Proxy_Function m_f;
+      Const_Proxy_Function m_f;
       std::vector<Boxed_Value> m_args;
+      int m_arity;
   };
 
   /**
@@ -394,7 +359,8 @@ namespace chaiscript
   {
     public:
       Proxy_Function_Impl(const boost::function<Func> &f)
-        : m_f(f)
+        : Proxy_Function_Base(build_param_type_list(static_cast<Func *>(0))),
+          m_f(f), m_dummy_func(0)
       {
       }
 
@@ -410,21 +376,25 @@ namespace chaiscript
         }
       }
  
-      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params)
+      virtual Boxed_Value operator()(const std::vector<Boxed_Value> &params) const
       {
-        return call_func(m_f, params);
+        return Do_Call<typename boost::function<Func>::result_type>::go(m_f, params);
       }
 
-      virtual std::vector<Type_Info> get_param_types() const
+      virtual int get_arity() const
       {
-        Func *f = 0;
-        return build_param_type_list(f);
+        return m_types.size() - 1;
       }
 
-      virtual bool types_match(const std::vector<Boxed_Value> &types) const
+
+      virtual bool call_match(const std::vector<Boxed_Value> &vals) const
       {
-        Func *f = 0;
-        return compare_types(f, types);
+        if (int(vals.size()) != get_arity()) 
+        {
+          return false;
+        }
+
+        return compare_types(m_types, vals) || compare_types_cast(m_dummy_func, vals);
       }
 
       virtual std::string annotation() const
@@ -434,6 +404,7 @@ namespace chaiscript
 
     private:
       boost::function<Func> m_f;
+      Func *m_dummy_func;
   };
 
   /**
@@ -457,15 +428,17 @@ namespace chaiscript
    * each function against the set of parameters, in order, until a matching
    * function is found or throw dispatch_error if no matching function is found
    */
-  Boxed_Value dispatch(const std::vector<std::pair<std::string, Proxy_Function> > &funcs,
+  template<typename InItr>
+  Boxed_Value dispatch(InItr begin, InItr end,
       const std::vector<Boxed_Value> &plist)
   {
-    for (std::vector<std::pair<std::string, Proxy_Function> >::const_iterator itr = funcs.begin();
-        itr != funcs.end();
-        ++itr)
+    while (begin != end)
     {
       try {
-        return (*itr->second)(plist);
+        if (begin->second->filter(plist))
+        {
+          return (*begin->second)(plist);
+        }
       } catch (const bad_boxed_cast &) {
         //parameter failed to cast, try again
       } catch (const arity_error &) {
@@ -474,75 +447,24 @@ namespace chaiscript
         //guard failed to allow the function to execute,
         //try again
       }
+      ++begin;
     }
+
     throw dispatch_error();
   }
+
+  /**
+   * Take a vector of functions and a vector of parameters. Attempt to execute
+   * each function against the set of parameters, in order, until a matching
+   * function is found or throw dispatch_error if no matching function is found
+   */
+  template<typename Funcs>
+  Boxed_Value dispatch(const Funcs &funcs,
+      const std::vector<Boxed_Value> &plist)
+  {
+    return dispatch(funcs.begin(), funcs.end(), plist);
+  }
 }
 
-# endif
-#else
-# define n BOOST_PP_ITERATION()
-
-namespace chaiscript
-{
-  /**
-   * Used by Proxy_Function_Impl to return a list of all param types
-   * it contains.
-   */
-  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
-    std::vector<Type_Info> build_param_type_list(Ret (*)(BOOST_PP_ENUM_PARAMS(n, Param)))
-    {
-      std::vector<Type_Info> ti;
-      ti.push_back(Get_Type_Info<Ret>::get());
-
-      BOOST_PP_REPEAT(n, gettypeinfo, ~)
-
-      return ti;
-    }
-
-  /**
-   * Used by Proxy_Function_Impl to perform typesafe execution of a function.
-   * The function attempts to unbox each paramter to the expected type.
-   * if any unboxing fails the execution of the function fails and
-   * the bad_boxed_cast is passed up to the caller.
-   */
-  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param)>
-    Boxed_Value call_func(const boost::function<Ret (BOOST_PP_ENUM_PARAMS(n, Param))> &f,
-        const std::vector<Boxed_Value> &params)
-    {
-      if (params.size() != n)
-      {
-        throw arity_error(params.size(), n);
-      } else {
-        return Handle_Return<Ret>()(boost::bind(f BOOST_PP_REPEAT(n, casthelper, ~)));
-      }
-    }
-
-  /**
-   * Used by Proxy_Function_Impl to determine if it is equivalent to another
-   * Proxy_Function_Impl object. This function is primarly used to prevent
-   * registration of two functions with the exact same signatures
-   */
-  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param)>
-    bool compare_types(Ret (*)(BOOST_PP_ENUM_PARAMS(n, Param)),
-        const std::vector<Boxed_Value> &params)
-    {
-      if (params.size() != n)
-      {
-        return false;
-      } else {
-        bool val = true BOOST_PP_REPEAT(n, comparetype, ~);
-        if (val) return true;
-
-        try {
-          BOOST_PP_REPEAT(n, trycast, ~);
-        } catch (const bad_boxed_cast &) {
-          return false;
-        }
-
-        return true;
-      }
-    }
-}
 
 #endif

include/chaiscript/dispatchkit/proxy_functions_detail.hpp

@@ -0,0 +1,133 @@
+// This file is distributed under the BSD License.
+// See "license.txt" for details.
+// Copyright 2009, Jonathan Turner (jturner@minnow-lang.org)
+// and Jason Turner (lefticus@gmail.com)
+// http://www.chaiscript.com
+
+#include <boost/preprocessor.hpp>
+
+#define gettypeinfo(z,n,text)  ti.push_back(detail::Get_Type_Info<Param ## n>::get());
+#define casthelper(z,n,text) BOOST_PP_COMMA_IF(n) chaiscript::boxed_cast< Param ## n >(params[n])
+#define trycast(z,n,text) chaiscript::boxed_cast<Param ## n>(params[n]);
+
+#ifndef  BOOST_PP_IS_ITERATING
+#ifndef __proxy_functions_detail_hpp__
+#define __proxy_functions_detail_hpp__
+
+#include "boxed_value.hpp"
+#include "type_info.hpp"
+#include "handle_return.hpp"
+#include <string>
+#include <boost/function.hpp>
+#include <boost/bind.hpp>
+#include <boost/lexical_cast.hpp>
+
+#include <stdexcept>
+#include <vector>
+
+namespace chaiscript
+{
+  /**
+   * Exception thrown when there is a mismatch in number of
+   * parameters during Proxy_Function execution
+   */
+  struct arity_error : std::range_error
+  {
+    arity_error(int t_got, int t_expected)
+      : std::range_error("Function dispatch arity mismatch"),
+      got(t_got), expected(t_expected)
+    {
+    }
+
+    virtual ~arity_error() throw() {}
+    int got;
+    int expected;
+  };
+
+  template<typename Ret>
+    struct Do_Call
+    {
+      template<typename Fun>
+      static Boxed_Value go(const boost::function<Fun> &fun, const std::vector<Boxed_Value> &params)
+      {
+        return Handle_Return<Ret>::handle(call_func(fun, params));
+      }
+    };
+
+  template<>
+    struct Do_Call<void>
+    {
+      template<typename Fun>
+      static Boxed_Value go(const boost::function<Fun> &fun, const std::vector<Boxed_Value> &params)
+      {
+        call_func(fun, params);
+        return Handle_Return<void>::handle();
+      };
+    };
+}
+
+#define BOOST_PP_ITERATION_LIMITS ( 0, 10 )
+#define BOOST_PP_FILENAME_1 <chaiscript/dispatchkit/proxy_functions_detail.hpp>
+#include BOOST_PP_ITERATE()
+
+
+# endif
+#else
+# define n BOOST_PP_ITERATION()
+
+namespace chaiscript
+{
+  /**
+   * Used by Proxy_Function_Impl to return a list of all param types
+   * it contains.
+   */
+  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param) >
+    std::vector<Type_Info> build_param_type_list(Ret (*)(BOOST_PP_ENUM_PARAMS(n, Param)))
+    {
+      std::vector<Type_Info> ti;
+      ti.push_back(detail::Get_Type_Info<Ret>::get());
+
+      BOOST_PP_REPEAT(n, gettypeinfo, ~) 
+
+      return ti;
+    }
+
+  /**
+   * Used by Proxy_Function_Impl to perform typesafe execution of a function.
+   * The function attempts to unbox each paramter to the expected type.
+   * if any unboxing fails the execution of the function fails and
+   * the bad_boxed_cast is passed up to the caller.
+   */
+  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param)>
+    Ret call_func(const boost::function<Ret (BOOST_PP_ENUM_PARAMS(n, Param))> &f,
+        const std::vector<Boxed_Value> &params)
+    {
+      if (params.size() != n)
+      {
+        throw arity_error(params.size(), n);
+      } else {
+        return f(BOOST_PP_REPEAT(n, casthelper, ~));
+      }
+    }
+
+  /**
+   * Used by Proxy_Function_Impl to determine if it is equivalent to another
+   * Proxy_Function_Impl object. This function is primarly used to prevent
+   * registration of two functions with the exact same signatures
+   */
+  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param)>
+    bool compare_types_cast(Ret (*)(BOOST_PP_ENUM_PARAMS(n, Param)),
+        const std::vector<Boxed_Value> & BOOST_PP_IF(n, params, ))
+    {
+      try {
+        BOOST_PP_REPEAT(n, trycast, ~);
+      } catch (const bad_boxed_cast &) {
+        return false;
+      }
+
+      return true;
+    }
+
+}
+
+#endif

include/chaiscript/dispatchkit/register_function.hpp

@@ -4,84 +4,87 @@
 // and Jason Turner (lefticus@gmail.com)
 // http://www.chaiscript.com
 
-#include <boost/preprocessor.hpp>
-
-#ifndef  BOOST_PP_IS_ITERATING
 #ifndef __register_function_hpp__
 #define __register_function_hpp__
 
 #include "dispatchkit.hpp"
+#include "bind_first.hpp"
 #include <boost/function.hpp>
 #include <boost/bind.hpp>
+#include <boost/function_types/components.hpp>
+#include <boost/function_types/function_type.hpp>
 
 namespace chaiscript
 {
+  namespace detail
+  {
+    /**
+     * Helper function for register_member function
+     */
+    template<typename T, typename Class>
+      T &get_member(T Class::* m, Class *obj)
+      {
+        return (obj->*m);
+      }
+
+    template<typename T>
+    boost::function<T> mk_boost_fun(const boost::function<T> &f)
+    {
+      return f;
+    }
+
+    template<typename T>
+    boost::function< 
+             typename boost::function_types::function_type<boost::function_types::components<T> >::type 
+          >  mk_boost_fun(T t)
+    {
+      return 
+          boost::function< 
+             typename boost::function_types::function_type<boost::function_types::components<T> >::type 
+          >(t);
+    }
+
+    template<typename T, typename Class>
+      Proxy_Function fun_helper(T Class::* m)
+      {
+        return fun_helper(boost::function<T& (Class *)>(boost::bind(&detail::get_member<T, Class>, m, _1)));
+      }
+
+
+    template<typename T>
+      Proxy_Function fun_helper(const boost::function<T> &f)
+      {
+        return Proxy_Function(new Proxy_Function_Impl<T>(f));
+      }
+  }
+
   template<typename T>
     Proxy_Function fun(const boost::function<T> &f)
     {
-      return Proxy_Function(new Proxy_Function_Impl<T>(f));
+      return detail::fun_helper(f);
     }
 
-
-  /**
-   * Helper function for register_member function
-   */
-  template<typename T, typename Class>
-    T &get_member(T Class::* m, Class *obj)
+  template<typename T>
+    Proxy_Function fun(T t)
     {
-      return (obj->*m);
+      return detail::fun_helper(detail::mk_boost_fun(t));
     }
 
-  /**
-   * Automatically create a get_member helper function for an object 
-   * to allow for runtime dispatched access to public data members
-   * for example, the case of std::pair<>::first and std::pair<>::second
-   */
-  template<typename T, typename Class>
-    Proxy_Function fun(T Class::* m)
+
+  template<typename T, typename Q>
+    Proxy_Function fun(T t, const Q &q)
     {
-      return fun(boost::function<T& (Class *)>(boost::bind(&get_member<T, Class>, m, _1)));
+      return detail::fun_helper(bind_first(t, q));
     }
 
+  template<typename T, typename Q, typename R>
+    Proxy_Function fun(T t, const Q &q, const R &r)
+    {
+      return detail::fun_helper(bind_first(bind_first(t, q), r));
+    }
+   
 }
 
-#define BOOST_PP_ITERATION_LIMITS ( 0, 10 )
-#define BOOST_PP_FILENAME_1 <chaiscript/dispatchkit/register_function.hpp>
-#include BOOST_PP_ITERATE()
-
-# endif
-#else
-# define n BOOST_PP_ITERATION()
-
-namespace chaiscript
-{
-  /**
-   * Register a global function of n parameters with name 
-   */
-  template<typename Ret BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param)>
-    Proxy_Function fun(Ret (*f)(BOOST_PP_ENUM_PARAMS(n, Param)))
-    {
-      return fun(boost::function<Ret (BOOST_PP_ENUM_PARAMS(n, Param))>(f));
-    }
-
-  /**
-   * Register a class method of n parameters with name 
-   */
-  template<typename Ret, typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param)>
-    Proxy_Function fun(Ret (Class::*f)(BOOST_PP_ENUM_PARAMS(n, Param)))
-    {
-      return fun(boost::function<Ret (Class* BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, Param))>(f));
-    }
-
-  /**
-   * Register a const class method of n parameters with name 
-   */
-  template<typename Ret, typename Class BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, typename Param)>
-    Proxy_Function fun(Ret (Class::*f)(BOOST_PP_ENUM_PARAMS(n, Param))const)
-    {
-      return fun(boost::function<Ret (const Class* BOOST_PP_COMMA_IF(n) BOOST_PP_ENUM_PARAMS(n, Param))>(f));
-    }
-}
 
 #endif
 

include/chaiscript/dispatchkit/type_info.hpp

@@ -21,116 +21,160 @@ namespace chaiscript
   /**
    * compile time deduced information about a type
    */
-  struct Type_Info
+  class Type_Info
   {
-    Type_Info(bool t_is_const, bool t_is_reference, bool t_is_pointer, bool t_is_void, 
-        const std::type_info *t_ti, const std::type_info *t_bareti)
-      : m_is_const(t_is_const), m_is_reference(t_is_reference), m_is_pointer(t_is_pointer),
+    public:
+      Type_Info(bool t_is_const, bool t_is_reference, bool t_is_pointer, bool t_is_void, 
+          const std::type_info *t_ti, const std::type_info *t_bareti)
+        : m_is_const(t_is_const), m_is_reference(t_is_reference), m_is_pointer(t_is_pointer),
         m_is_void(t_is_void),
-      m_type_info(t_ti), m_bare_type_info(t_bareti),
-      m_is_unknown(false)
-    {
-    }
+        m_type_info(t_ti), m_bare_type_info(t_bareti),
+        m_is_unknown(false)
+      {
+      }
 
-    Type_Info()
-      : m_is_const(false), m_is_reference(false), m_is_pointer(false),
-      m_is_void(false), m_type_info(0), m_bare_type_info(0),
-      m_is_unknown(true)
-    {
-    }
+      Type_Info()
+        : m_is_const(false), m_is_reference(false), m_is_pointer(false),
+        m_is_void(false), m_type_info(0), m_bare_type_info(0),
+        m_is_unknown(true)
+      {
+      }
 
-    Type_Info(const Type_Info &ti)
-    : m_is_const(ti.m_is_const), m_is_reference(ti.m_is_reference), 
-      m_is_pointer(ti.m_is_pointer),
-      m_is_void(ti.m_is_void), m_type_info(ti.m_type_info), 
-      m_bare_type_info(ti.m_bare_type_info),
-      m_is_unknown(ti.m_is_unknown)
-    {
-    }
-    Type_Info &operator=(const Type_Info &ti)
-    {
-      m_is_const = ti.m_is_const;
-      m_is_reference = ti.m_is_reference;
-      m_is_pointer = ti.m_is_pointer;
-      m_is_void = ti.m_is_void;
-      m_type_info = ti.m_type_info;
-      m_bare_type_info = ti.m_bare_type_info;
-      m_is_unknown = ti.m_is_unknown;
-      return *this;
-    }
-    bool operator<(const Type_Info &ti) const
-    {
-      return m_type_info < ti.m_type_info;
-    }
+      Type_Info(const Type_Info &ti)
+        : m_is_const(ti.m_is_const), m_is_reference(ti.m_is_reference), 
+        m_is_pointer(ti.m_is_pointer),
+        m_is_void(ti.m_is_void), m_type_info(ti.m_type_info), 
+        m_bare_type_info(ti.m_bare_type_info),
+        m_is_unknown(ti.m_is_unknown)
+      {
+      }
 
-    bool operator==(const Type_Info &ti) const
-    {
-      return ti.m_type_info == m_type_info;
-    }
+      Type_Info &operator=(const Type_Info &ti)
+      {
+        m_is_const = ti.m_is_const;
+        m_is_reference = ti.m_is_reference;
+        m_is_pointer = ti.m_is_pointer;
+        m_is_void = ti.m_is_void;
+        m_type_info = ti.m_type_info;
+        m_bare_type_info = ti.m_bare_type_info;
+        m_is_unknown = ti.m_is_unknown;
+        return *this;
+      }
 
-    bool m_is_const;
-    bool m_is_reference;
-    bool m_is_pointer;
-    bool m_is_void;
-    const std::type_info *m_type_info;
-    const std::type_info *m_bare_type_info;
-    bool m_is_unknown;
+      bool operator<(const Type_Info &ti) const
+      {
+        return m_type_info < ti.m_type_info;
+      }
+
+      bool operator==(const Type_Info &ti) const
+      {
+        return ti.m_type_info == m_type_info 
+          || (ti.m_type_info && m_type_info && *ti.m_type_info == *m_type_info);
+      }
+
+      bool operator==(const std::type_info &ti) const
+      {
+        return m_type_info != 0 && (*m_type_info) == ti;
+      }
+
+      bool bare_equal(const Type_Info &ti) const
+      {
+        return ti.m_bare_type_info == m_bare_type_info 
+          || (ti.m_bare_type_info && m_bare_type_info && *ti.m_bare_type_info == *m_bare_type_info);
+      }
+
+      bool is_const() const { return m_is_const; }
+      bool is_reference() const { return m_is_reference; }
+      bool is_void() const { return m_is_void; }
+      bool is_unknown() const { return m_is_unknown || m_bare_type_info == 0; }
+
+      std::string bare_name() const
+      {
+        if (m_bare_type_info)
+        {
+          return m_bare_type_info->name();
+        } else {
+          return "";
+        }
+      }
+
+    private:
+      bool m_is_const;
+      bool m_is_reference;
+      bool m_is_pointer;
+      bool m_is_void;
+      const std::type_info *m_type_info;
+      const std::type_info *m_bare_type_info;
+      bool m_is_unknown;
   };
 
-  /**
-   * Helper used to create a Type_Info object
-   */
-  template<typename T>
-    struct Get_Type_Info
-    {
-      static Type_Info get()
+  namespace detail
+  {
+    /**
+     * Helper used to create a Type_Info object
+     */
+    template<typename T>
+      struct Get_Type_Info
       {
-        return Type_Info(boost::is_const<T>::value, boost::is_reference<T>::value, boost::is_pointer<T>::value, 
-            boost::is_void<T>::value,
-            &typeid(T), 
-            &typeid(typename boost::remove_const<typename boost::remove_pointer<typename boost::remove_reference<T>::type>::type>::type));
-      }
-    };
+        static Type_Info get()
+        {
+          return Type_Info(boost::is_const<T>::value, boost::is_reference<T>::value, boost::is_pointer<T>::value, 
+              boost::is_void<T>::value,
+              &typeid(T), 
+              &typeid(typename boost::remove_const<typename boost::remove_pointer<typename boost::remove_reference<T>::type>::type>::type));
+        }
+      };
 
-  template<typename T>
-    struct Get_Type_Info<boost::shared_ptr<T> >
-    {
-      static Type_Info get()
+    template<typename T>
+      struct Get_Type_Info<boost::shared_ptr<T> >
       {
-        return Type_Info(boost::is_const<T>::value, boost::is_reference<T>::value, boost::is_pointer<T>::value, 
-            boost::is_void<T>::value,
-            &typeid(boost::shared_ptr<T> ), 
-            &typeid(typename boost::remove_const<typename boost::remove_pointer<typename boost::remove_reference<T>::type>::type>::type));
-      }
-    };
+        static Type_Info get()
+        {
+          return Type_Info(boost::is_const<T>::value, boost::is_reference<T>::value, boost::is_pointer<T>::value, 
+              boost::is_void<T>::value,
+              &typeid(boost::shared_ptr<T> ), 
+              &typeid(typename boost::remove_const<typename boost::remove_pointer<typename boost::remove_reference<T>::type>::type>::type));
+        }
+      };
 
-  template<typename T>
-    struct Get_Type_Info<boost::reference_wrapper<T> >
-    {
-      static Type_Info get()
+    template<typename T>
+      struct Get_Type_Info<const boost::shared_ptr<T> &>
       {
-        return Type_Info(boost::is_const<T>::value, boost::is_reference<T>::value, boost::is_pointer<T>::value, 
-            boost::is_void<T>::value,
-            &typeid(boost::reference_wrapper<T> ), 
-            &typeid(typename boost::remove_const<typename boost::remove_pointer<typename boost::remove_reference<T>::type>::type>::type));
-      }
-    };
+        static Type_Info get()
+        {
+          return Type_Info(boost::is_const<T>::value, boost::is_reference<T>::value, boost::is_pointer<T>::value, 
+              boost::is_void<T>::value,
+              &typeid(const boost::shared_ptr<T> &), 
+              &typeid(typename boost::remove_const<typename boost::remove_pointer<typename boost::remove_reference<T>::type>::type>::type));
+        }
+      };
 
+    template<typename T>
+      struct Get_Type_Info<boost::reference_wrapper<T> >
+      {
+        static Type_Info get()
+        {
+          return Type_Info(boost::is_const<T>::value, boost::is_reference<T>::value, boost::is_pointer<T>::value, 
+              boost::is_void<T>::value,
+              &typeid(boost::reference_wrapper<T> ), 
+              &typeid(typename boost::remove_const<typename boost::remove_pointer<typename boost::remove_reference<T>::type>::type>::type));
+        }
+      };
+  }
   
   template<typename T>
   Type_Info user_type(T)
   {
-    return Get_Type_Info<T>::get();
+    return detail::Get_Type_Info<T>::get();
   }
 
 
   template<typename T>
   Type_Info user_type()
   {
-    return Get_Type_Info<T>::get();
+    return detail::Get_Type_Info<T>::get();
   }
 
-
 }
 
 #endif

include/chaiscript/language/chaiscript_common.hpp

@@ -0,0 +1,135 @@
+// This file is distributed under the BSD License.
+// See "license.txt" for details.
+// Copyright 2009, Jonathan Turner (jturner@minnow-lang.org)
+// and Jason Turner (lefticus@gmail.com)
+// http://www.chaiscript.com
+
+#ifndef _CHAISCRIPT_COMMON_HPP
+#define	_CHAISCRIPT_COMMON_HPP
+
+
+#ifdef  BOOST_HAS_DECLSPEC
+#define CHAISCRIPT_MODULE_EXPORT extern "C" __declspec(dllexport)
+#else
+#define CHAISCRIPT_MODULE_EXPORT extern "C"
+#endif
+
+namespace chaiscript
+{
+    typedef ModulePtr (*Create_Module_Func)();
+
+    /**
+     * Types of AST nodes available to the parser and eval
+     */
+    class Token_Type { public: enum Type { Error, Int, Float, Id, Char, Str, Eol, Fun_Call, Inplace_Fun_Call, Arg_List, Variable, Equation, Var_Decl,
+        Expression, Comparison, Additive, Multiplicative, Negate, Not, Array_Call, Dot_Access, Quoted_String, Single_Quoted_String,
+        Lambda, Block, Def, While, If, For, Inline_Array, Inline_Map, Return, File, Prefix, Break, Map_Pair, Value_Range,
+        Inline_Range, Annotation, Try, Catch, Finally, Method, Attr_Decl, Shift }; };
+
+    namespace
+    {
+      /**
+       * Helper lookup to get the name of each node type
+       */
+      const char *token_type_to_string(int tokentype) {
+        const char *token_types[] = { "Internal Parser Error", "Int", "Float", "Id", "Char", "Str", "Eol", "Fun_Call", "Inplace_Fun_Call", "Arg_List", "Variable", "Equation", "Var_Decl",
+          "Expression", "Comparison", "Additive", "Multiplicative", "Negate", "Not", "Array_Call", "Dot_Access", "Quoted_String", "Single_Quoted_String",
+          "Lambda", "Block", "Def", "While", "If", "For", "Inline_Array", "Inline_Map", "Return", "File", "Prefix", "Break", "Map_Pair", "Value_Range",
+          "Inline_Range", "Annotation", "Try", "Catch", "Finally", "Method", "Attr_Decl", "Shift"};
+
+        return token_types[tokentype];
+      }
+    }
+
+    /**
+     * Convenience type for file positions
+     */
+    struct File_Position {
+        int line;
+        int column;
+
+        File_Position(int file_line, int file_column)
+            : line(file_line), column(file_column) { }
+
+        File_Position() : line(0), column(0) { }
+    };
+
+    typedef boost::shared_ptr<struct Token> TokenPtr;
+
+    /**
+     * The struct that doubles as both a parser token and an AST node
+     */
+    struct Token {
+        std::string text;
+        int identifier;
+        const char *filename;
+        File_Position start, end;
+        bool is_cached;
+        Boxed_Value cached_value;
+
+        std::vector<TokenPtr> children;
+        TokenPtr annotation;
+
+        Token(const std::string &token_text, int id, const char *fname) :
+            text(token_text), identifier(id), filename(fname), is_cached(false) { }
+
+        Token(const std::string &token_text, int id, const char *fname, int start_line, int start_col, int end_line, int end_col) :
+            text(token_text), identifier(id), filename(fname), is_cached(false) {
+
+            start.line = start_line;
+            start.column = start_col;
+            end.line = end_line;
+            end.column = end_col;
+        }
+    };
+
+    /**
+     * Errors generated during parsing or evaluation
+     */
+    struct Eval_Error : public std::runtime_error {
+        std::string reason;
+        File_Position start_position;
+        File_Position end_position;
+        const char *filename;
+
+        Eval_Error(const std::string &why, const File_Position &where, const char *fname) :
+            std::runtime_error("Error: \"" + why + "\" " +
+                (std::string(fname) != "__EVAL__" ? ("in '" + std::string(fname) + "' ") : "during evaluation ") +
+                + "at (" + boost::lexical_cast<std::string>(where.line) + ", " +
+                boost::lexical_cast<std::string>(where.column) + ")"),
+            reason(why), start_position(where), end_position(where), filename(fname)
+        { }
+
+        Eval_Error(const std::string &why, const TokenPtr &where)
+            : std::runtime_error("Error: \"" + why + "\" " +
+                (std::string(where->filename) != "__EVAL__" ? ("in '" + std::string(where->filename) + "' ") : "during evaluation ") +
+                "at (" + boost::lexical_cast<std::string>(where->start.line) + ", " +
+                boost::lexical_cast<std::string>(where->start.column) + ")"),
+              reason(why), start_position(where->start), end_position(where->end), filename(where->filename) {
+        }
+
+        virtual ~Eval_Error() throw() {}
+    };
+
+    /**
+     * Special type for returned values
+     */
+    struct Return_Value {
+        Boxed_Value retval;
+        TokenPtr location;
+
+        Return_Value(const Boxed_Value &return_value, const TokenPtr where) : retval(return_value), location(where) { }
+    };
+
+    /**
+     * Special type indicating a call to 'break'
+     */
+    struct Break_Loop {
+        TokenPtr location;
+
+        Break_Loop(const TokenPtr where) : location(where) { }
+    };
+}
+
+#endif	/* _CHAISCRIPT_COMMON_HPP */
+

include/chaiscript/language/chaiscript_engine.hpp

@@ -10,33 +10,288 @@
 #include <exception>
 #include <fstream>
 
+#include <chaiscript/language/chaiscript_common.hpp>
 
-#include "chaiscript_prelude.hpp"
-#include "chaiscript_parser.hpp"
+#ifdef _POSIX_VERSION
+#include <dlfcn.h>
+#else
+#ifdef WIN32
+#include <Windows.h>
+#endif
+#endif
+
+#include <chaiscript/language/chaiscript_prelude.hpp>
+#include <chaiscript/language/chaiscript_parser.hpp>
 
 namespace chaiscript
 {
+    struct load_module_error : std::runtime_error
+    {
+       load_module_error(const std::string &reason) throw()
+         : std::runtime_error(reason)
+       {
+       }
+
+       virtual ~load_module_error() throw()
+       {
+       }
+    };
+
+#ifdef _POSIX_VERSION
+    struct Loadable_Module
+    {
+        struct DLModule
+        {
+           DLModule(const std::string &t_filename)
+             : m_data(dlopen(t_filename.c_str(), RTLD_NOW))
+           {
+              if (!m_data)
+              {
+                 throw load_module_error(dlerror());
+              }
+           }
+
+           DLModule(const DLModule &); // Explicitly unimplemented copy constructor
+           DLModule &operator=(const DLModule &); // Explicitly unimplemented assignment operator
+
+           ~DLModule()
+           {
+              dlclose(m_data);
+           }
+
+           void *m_data;
+        };
+
+        template<typename T>
+        struct DLSym
+        {
+            DLSym(DLModule &t_mod, const std::string &t_symbol)
+              : m_symbol(reinterpret_cast<T>(dlsym(t_mod.m_data, t_symbol.c_str())))
+            {
+              if (!m_symbol)
+              {
+                 throw load_module_error(dlerror());
+              }
+            }
+
+            T m_symbol;
+        };
+
+        Loadable_Module(const std::string &t_module_name, const std::string &t_filename)
+          : m_dlmodule(t_filename), m_func(m_dlmodule, "create_chaiscript_module_" + t_module_name)
+        {
+        }
+
+        ModulePtr get()
+        {
+          return m_func.m_symbol();
+        }
+
+        DLModule m_dlmodule;
+        DLSym<Create_Module_Func> m_func;
+    };
+#else
+
+#ifdef WIN32
+
+
+    struct Loadable_Module
+    {
+        template<typename T>
+        static std::wstring towstring(const T &str) 
+        {
+            return std::wstring(str.begin(), str.end());
+        }
+
+        template<typename T>
+        static std::string tostring(const T &str)
+        {
+            return std::string(str.begin(), str.end());
+        }
+
+#ifdef _UNICODE
+        template<typename T>
+        static std::wstring toproperstring(const T &str)
+        {
+            return towstring(str);
+        }
+#else
+        template<typename T>
+        static std::string toproperstring(const T &str)
+        {
+            return tostring(str);
+        }
+#endif
+
+        static std::string GetErrorMessage(DWORD err)
+        {
+#ifdef _UNICODE
+            typedef LPWSTR StringType;
+            std::wstring retval = L"Unknown Error";
+#else
+            typedef LPSTR StringType;
+            std::string retval = "Unknown Error";
+#endif
+            StringType lpMsgBuf = 0;
+
+            FormatMessage(
+                FORMAT_MESSAGE_ALLOCATE_BUFFER | 
+                FORMAT_MESSAGE_FROM_SYSTEM |
+                FORMAT_MESSAGE_IGNORE_INSERTS,
+                NULL,
+                err,
+                MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+                (StringType)&lpMsgBuf,
+                0, NULL );        
+
+            if (lpMsgBuf)
+            {
+              retval = lpMsgBuf;
+            }
+
+            LocalFree(lpMsgBuf);
+            return tostring(retval);
+        }
+
+        struct DLModule
+        {
+           DLModule(const std::string &t_filename)
+             : m_data(LoadLibrary(toproperstring(t_filename).c_str()))
+           {
+              if (!m_data)
+              {
+                 throw load_module_error(GetErrorMessage(GetLastError()));
+              }
+           }
+
+           ~DLModule()
+           {
+              FreeLibrary(m_data);
+           }
+
+           HMODULE m_data;
+        };
+
+        template<typename T>
+        struct DLSym
+        {
+            DLSym(DLModule &t_mod, const std::string &t_symbol)
+              : m_symbol(reinterpret_cast<T>(GetProcAddress(t_mod.m_data, t_symbol.c_str())))
+            {
+              if (!m_symbol)
+              {
+                 throw load_module_error(GetErrorMessage(GetLastError()));
+              }
+            }
+
+            T m_symbol;
+        };
+
+        Loadable_Module(const std::string &t_module_name, const std::string &t_filename)
+          : m_dlmodule(t_filename), m_func(m_dlmodule, "create_chaiscript_module_" + t_module_name)
+        {
+        }
+
+        ModulePtr get()
+        {
+          return m_func.m_symbol();
+        }
+
+        DLModule m_dlmodule;
+        DLSym<Create_Module_Func> m_func;
+    };
+
+#else
+    struct Loadable_Module
+    {
+        Loadable_Module(const std::string &, const std::string &)
+        {
+          throw load_module_error("Loadable module support not available for your platform");
+        }
+
+        ModulePtr get()
+        {
+          throw load_module_error("Loadable module support not available for your platform");
+        }
+    };
+#endif
+#endif
+
+    typedef boost::shared_ptr<Loadable_Module> Loadable_Module_Ptr;
+
+
     template <typename Eval_Engine>
     class ChaiScript_System {
+#ifndef CHAISCRIPT_NO_THREADS
+        mutable boost::shared_mutex mutex;
+        mutable boost::recursive_mutex use_mutex;
+#endif
+
+        std::set<std::string> loaded_files;
+        std::map<std::string, Loadable_Module_Ptr> loaded_modules;
+
         Eval_Engine engine;
-        ChaiScript_Parser parser;
+
 
         /**
          * Evaluates the given string in by parsing it and running the results through the evaluator
          */
-        Boxed_Value do_eval(const std::string &input, const char *filename = "__EVAL__") {
+        Boxed_Value do_eval(const std::string &input, const std::string &filename = "__EVAL__", bool internal = false) {
+            ChaiScript_Parser parser;
+
+            if (!internal)
+            {
+                engine.sync_cache();
+            }
+
             //debug_print(tokens);
             Boxed_Value value;
-            parser.clear_match_stack();
 
-            try {
-                if (parser.parse(input, filename)) {
-                    //parser.show_match_stack();
-                    value = eval_token<Eval_Engine>(engine, parser.ast());
+            // Keep a cache of all loaded filenames and use the char * from this cache to pass 
+            // to the parser. This is so that the parser does not have the overhead of passing 
+            // around and copying strings
+            // 
+            if (filename != "__EVAL__")
+            {
+#ifndef CHAISCRIPT_NO_THREADS
+                boost::unique_lock<boost::shared_mutex> l(mutex);
+#endif
+                loaded_files.insert(filename);
+                try {
+                    if (parser.parse(input, loaded_files.find(filename)->c_str())) {
+#ifndef CHAISCRIPT_NO_THREADS
+                        l.unlock();
+#endif
+                        //parser.show_match_stack();
+                        value = eval_token<Eval_Engine>(engine, parser.ast());
+                    }
+                }
+                catch (const Return_Value &rv) {
+                    value = rv.retval;
+                }
+            } else {
+                try {
+#ifndef CHAISCRIPT_NO_THREADS
+                    boost::shared_lock<boost::shared_mutex> l(mutex);
+#endif
+                    const char *fname = loaded_files.find("__EVAL__")->c_str();
+#ifndef CHAISCRIPT_NO_THREADS
+                    l.unlock();
+#endif
+ 
+                    if (parser.parse(input, fname)) {
+                        //parser.show_match_stack();
+                        value = eval_token<Eval_Engine>(engine, parser.ast());
+                    }
+                }
+                catch (const Return_Value &rv) {
+                    value = rv.retval;
                 }
             }
-            catch (const Return_Value &rv) {
-                value = rv.retval;
+
+            if (!internal)
+            {
+                engine.sync_cache();
             }
 
             return value;
@@ -45,16 +300,45 @@ namespace chaiscript
         /**
          * Evaluates the given boxed string, used during eval() inside of a script
          */
-        const Boxed_Value internal_eval(const std::vector<Boxed_Value> &vals) {
-            return do_eval(boxed_cast<std::string>(vals.at(0)));
+        const Boxed_Value internal_eval(const std::string &e) {
+            return do_eval(e, "__EVAL__", true);
+        }
+
+        void use(const std::string &filename)
+        {
+#ifndef CHAISCRIPT_NO_THREADS
+          boost::lock_guard<boost::recursive_mutex> l(use_mutex);
+          boost::shared_lock<boost::shared_mutex> l2(mutex);
+#endif
+
+          if (loaded_files.count(filename) == 0)
+          {
+#ifndef CHAISCRIPT_NO_THREADS
+            l2.unlock();
+#endif
+            eval_file(filename);
+          } else {
+            engine.sync_cache();
+          }
+
         }
 
 
     public:
         ChaiScript_System()  {
+            loaded_files.insert("__EVAL__"); // Make sure the default name is already registered
             build_eval_system();
         }
 
+        /**
+         * Adds a shared object, that can be used by all threads, to the system
+         */
+        ChaiScript_System &add_shared_object(const Boxed_Value &bv, const std::string &name)
+        {
+            engine.add_shared_object(bv, name);
+            return *this;
+        }
+
         /**
          * Adds an object to the system: type, function, object
          */
@@ -70,11 +354,61 @@ namespace chaiscript
          */
         ChaiScript_System &add(const ModulePtr &p)
         {
-            engine.add(p);
-
+            p->apply(*this, this->get_eval_engine());
             return *this;
         }
 
+        /**
+         * Load a dynamic library containing a chaiscript module
+         */
+        void load_module(const std::string &t_module_name)
+        {
+            std::vector<std::string> prefixes;
+            prefixes.push_back("lib");
+            prefixes.push_back("");
+
+            std::vector<std::string> postfixes;
+            postfixes.push_back(".dll");
+            postfixes.push_back(".so");
+            postfixes.push_back("");
+
+            for (size_t i = 0; i < prefixes.size(); ++i)
+            {
+                for (size_t j = 0; j < postfixes.size(); ++j)
+                {
+                    try {
+                        std::string name = prefixes[i] + t_module_name + postfixes[j];
+                        load_module(t_module_name, name);
+                        return;
+                    } catch (const load_module_error &) {
+                        // Try next set
+                    }
+                }
+            }
+
+            throw load_module_error("Unable to find module: " + t_module_name);
+        }
+
+        /**
+         * Load a dynamic library and provide the file name to load it from
+         */
+        void load_module(const std::string &t_module_name, const std::string &t_filename)
+        {
+#ifndef CHAISCRIPT_NO_THREADS
+            boost::lock_guard<boost::recursive_mutex> l(use_mutex);
+#endif
+
+            if (loaded_modules.count(t_module_name) == 0)
+            {
+                Loadable_Module_Ptr lm(new Loadable_Module(t_module_name, t_filename));
+                loaded_modules[t_module_name] = lm;
+                add(lm->get());
+            } else {
+                engine.sync_cache();
+            }
+        }
+
+
         /**
          * Helper for calling script code as if it were native C++ code
          * example:
@@ -117,12 +451,11 @@ namespace chaiscript
         /**
          * Helper function for loading a file
          */
-        std::string load_file(const char *filename) {
-            std::ifstream infile (filename, std::ios::in | std::ios::ate);
+        std::string load_file(const std::string &filename) {
+            std::ifstream infile (filename.c_str(), std::ios::in | std::ios::ate);
 
             if (!infile.is_open()) {
-                std::string fname = filename;
-                throw std::runtime_error("Can not open: " + fname);
+                throw std::runtime_error("Can not open: " + filename);
             }
 
             std::streampos size = infile.tellg();
@@ -141,23 +474,47 @@ namespace chaiscript
          */
         void build_eval_system() {
             using namespace bootstrap;
-            engine.add(Bootstrap::bootstrap());
+            engine.add_reserved_word("def");
+            engine.add_reserved_word("fun");
+            engine.add_reserved_word("while");
+            engine.add_reserved_word("for");
+            engine.add_reserved_word("if");
+            engine.add_reserved_word("else");
+            engine.add_reserved_word("&&");
+            engine.add_reserved_word("||");
+            engine.add_reserved_word(",");
+            engine.add_reserved_word(":=");
+            engine.add_reserved_word("var");
+            engine.add_reserved_word("return");
+            engine.add_reserved_word("break");
+            engine.add_reserved_word("true");
+            engine.add_reserved_word("false");
+            engine.add_reserved_word("_");
 
-            engine.add(fun(boost::function<void ()>(boost::bind(&dump_system, boost::ref(engine)))), "dump_system");
-            engine.add(fun(boost::function<void (Boxed_Value)>(boost::bind(&dump_object, _1, boost::ref(engine)))), "dump_object");
-            engine.add(fun(boost::function<bool (Boxed_Value, const std::string &)>(boost::bind(&is_type, boost::ref(engine), _2, _1))),
-                "is_type");
+            add(Bootstrap::bootstrap());
 
-            engine.add(fun(boost::function<std::string (Boxed_Value)>(boost::bind(&chaiscript::type_name, boost::ref(engine), _1))),
-                "type_name");
+            engine.add(fun(&Eval_Engine::dump_system, boost::ref(engine)), "dump_system");
+            engine.add(fun(&Eval_Engine::dump_object, boost::ref(engine)), "dump_object");
+            engine.add(fun(&Eval_Engine::is_type, boost::ref(engine)), "is_type");
+            engine.add(fun(&Eval_Engine::type_name, boost::ref(engine)), "type_name");
+            engine.add(fun(&Eval_Engine::function_exists, boost::ref(engine)), "function_exists");
 
-            engine.add(vector_type<std::vector<Boxed_Value> >("Vector"));
-            engine.add(string_type<std::string>("string"));
-            engine.add(map_type<std::map<std::string, Boxed_Value> >("Map"));
-            engine.add(pair_type<std::pair<Boxed_Value, Boxed_Value > >("Pair"));
 
-            engine.add(Proxy_Function(
-                  new Dynamic_Proxy_Function(boost::bind(&ChaiScript_System<Eval_Engine>::internal_eval, boost::ref(*this), _1), 1)), "eval");
+            typedef void (ChaiScript_System<Eval_Engine>::*load_mod_1)(const std::string&);
+            typedef void (ChaiScript_System<Eval_Engine>::*load_mod_2)(const std::string&, const std::string&);
+
+            engine.add(fun(static_cast<load_mod_1>(&ChaiScript_System<Eval_Engine>::load_module), this), "load_module");
+            engine.add(fun(static_cast<load_mod_2>(&ChaiScript_System<Eval_Engine>::load_module), this), "load_module");
+
+
+            add(vector_type<std::vector<Boxed_Value> >("Vector"));
+            add(string_type<std::string>("string"));
+            add(map_type<std::map<std::string, Boxed_Value> >("Map"));
+            add(pair_type<std::pair<Boxed_Value, Boxed_Value > >("Pair"));
+
+            engine.add(fun(&ChaiScript_System<Eval_Engine>::use, this), "use");
+            engine.add(fun(&ChaiScript_System<Eval_Engine>::internal_eval, this), "eval");
+
 
             do_eval(chaiscript_prelude, "standard prelude");
         }
@@ -176,7 +533,7 @@ namespace chaiscript
         /**
          * Loads the file specified by filename, evaluates it, and returns the result
          */
-        Boxed_Value eval_file(const char *filename) {
+        Boxed_Value eval_file(const std::string &filename) {
             return do_eval(load_file(filename), filename);
         }
 
@@ -184,7 +541,7 @@ namespace chaiscript
          * Loads the file specified by filename, evaluates it, and returns the as the specified type
          */
         template<typename T>
-        T eval_file(const char *filename) {
+        T eval_file(const std::string &filename) {
             return boxed_cast<T>(do_eval(load_file(filename), filename));
         }
     };

include/chaiscript/language/chaiscript_parser.hpp

@@ -9,6 +9,7 @@
 
 #include <exception>
 #include <fstream>
+#include <sstream>
 
 #include "chaiscript_prelude.hpp"
 
@@ -30,6 +31,9 @@ namespace chaiscript
             singleline_comment = "//";
         }
 
+        ChaiScript_Parser(const ChaiScript_Parser &); // explicitly unimplemented copy constructor
+        ChaiScript_Parser &operator=(const ChaiScript_Parser &); // explicitly unimplemented assignment operator
+
         /**
          * Prints the parsed tokens as a tree
          */
@@ -68,7 +72,7 @@ namespace chaiscript
          */
         void build_match(Token_Type::Type match_type, int match_start) {
             //so we want to take everything to the right of this and make them children
-            if (match_start != (int)match_stack.size()) {
+            if (match_start != int(match_stack.size())) {
                 TokenPtr t(new Token("", match_type, filename, match_stack[match_start]->start.line, match_stack[match_start]->start.column, line, col));
                 t->children.assign(match_stack.begin() + (match_start), match_stack.end());
                 match_stack.erase(match_stack.begin() + (match_start), match_stack.end());
@@ -140,7 +144,9 @@ namespace chaiscript
          */
         bool Float_() {
             bool retval = false;
-            if ((input_pos != input_end) && (*input_pos >= '0') && (*input_pos <= '9')) {
+            std::string::iterator start = input_pos;
+
+            if ((input_pos != input_end) && (((*input_pos >= '0') && (*input_pos <= '9')) || (*input_pos == '.'))) {
                 while ((input_pos != input_end) && (*input_pos >= '0') && (*input_pos <= '9')) {
                     ++input_pos;
                     ++col;
@@ -161,10 +167,47 @@ namespace chaiscript
                     }
                 }
             }
+            return retval;
+        }
+
+        /**
+         * Reads a floating point value from input, without skipping initial whitespace
+         */
+        bool Hex_() {
+            bool retval = false;
+            if ((input_pos != input_end) && (*input_pos == '0')) {
+                ++input_pos;
+                ++col;
+
+                if ((input_pos != input_end) && ((*input_pos == 'x') || (*input_pos == 'X'))) {
+                    ++input_pos;
+                    ++col;
+                    if ((input_pos != input_end) && (((*input_pos >= '0') && (*input_pos <= '9')) ||
+                            ((*input_pos >= 'a') && (*input_pos <= 'f')) ||
+                            ((*input_pos >= 'A') && (*input_pos <= 'F')))) {
+                        retval = true;
+                        while ((input_pos != input_end) && (((*input_pos >= '0') && (*input_pos <= '9')) ||
+                        ((*input_pos >= 'a') && (*input_pos <= 'f')) ||
+                        ((*input_pos >= 'A') && (*input_pos <= 'F')))) {
+                            ++input_pos;
+                            ++col;
+                        }
+                    }
+                    else {
+                        --input_pos;
+                        --col;
+                    }
+                }
+                else {
+                    --input_pos;
+                    --col;
+                }
+            }
 
             return retval;
         }
 
+
         /**
          * Reads a number from the input, detecting if it's an integer or floating point
          */
@@ -172,13 +215,25 @@ namespace chaiscript
             SkipWS();
 
             if (!capture) {
-                return Float_();
+                return Hex_() || Float_();
             }
             else {
                 std::string::iterator start = input_pos;
                 int prev_col = col;
                 int prev_line = line;
-                if ((input_pos != input_end) && (*input_pos >= '0') && (*input_pos <= '9')) {
+                if ((input_pos != input_end) && (((*input_pos >= '0') && (*input_pos <= '9')) || (*input_pos == '.')) ) {
+                    if (Hex_()) {
+                        std::string match(start, input_pos);
+                        std::stringstream ss(match);
+                        int temp_int;
+                        ss >> std::hex >> temp_int;
+
+                        std::ostringstream out_int;
+                        out_int << temp_int;
+                        TokenPtr t(new Token(out_int.str(), Token_Type::Int, filename, prev_line, prev_col, line, col));
+                        match_stack.push_back(t);
+                        return true;
+                    }
                     if (Float_()) {
                         std::string match(start, input_pos);
                         TokenPtr t(new Token(match, Token_Type::Float, filename, prev_line, prev_col, line, col));
@@ -187,8 +242,20 @@ namespace chaiscript
                     }
                     else {
                         std::string match(start, input_pos);
-                        TokenPtr t(new Token(match, Token_Type::Int, filename, prev_line, prev_col, line, col));
-                        match_stack.push_back(t);
+                        if ((match.size() > 0) && (match[0] == '0')) {
+                            std::stringstream ss(match);
+                            int temp_int;
+                            ss >> std::oct >> temp_int;
+
+                            std::ostringstream out_int;
+                            out_int << temp_int;
+                            TokenPtr t(new Token(out_int.str(), Token_Type::Int, filename, prev_line, prev_col, line, col));
+                            match_stack.push_back(t);
+                        }
+                        else {
+                            TokenPtr t(new Token(match, Token_Type::Int, filename, prev_line, prev_col, line, col));
+                            match_stack.push_back(t);
+                        }
                         return true;
                     }
                 }
@@ -211,7 +278,32 @@ namespace chaiscript
                     ++col;
                 }
             }
+            else if ((input_pos != input_end) && (*input_pos == '`')) {
+                retval = true;
+                ++col;
+                ++input_pos;
+                std::string::iterator start = input_pos;
+                
+                while ((input_pos != input_end) && (*input_pos != '`')) {
+                    if (Eol()) {
+                        throw Eval_Error("Carriage return in identifier literal", File_Position(line, col), filename);
+                    }
+                    else {
+                        ++input_pos;
+                        ++col;
+                    }
+                }
 
+                if (start == input_pos) {
+                    throw Eval_Error("Missing contents of identifier literal", File_Position(line, col), filename);
+                }
+                else if (input_pos == input_end) {
+                    throw Eval_Error("Incomplete identifier literal", File_Position(line, col), filename);
+                }
+
+                ++col;
+                ++input_pos;
+            }
             return retval;
         }
 
@@ -229,10 +321,19 @@ namespace chaiscript
                 int prev_col = col;
                 int prev_line = line;
                 if (Id_()) {
-                    std::string match(start, input_pos);
-                    TokenPtr t(new Token(match, Token_Type::Id, filename, prev_line, prev_col, line, col));
-                    match_stack.push_back(t);
-                    return true;
+                    if (*start == '`') {
+                        //Id Literal
+                        std::string match(start+1, input_pos-1);
+                        TokenPtr t(new Token(match, Token_Type::Id, filename, prev_line, prev_col, line, col));
+                        match_stack.push_back(t);
+                        return true;
+                    }
+                    else {
+                        std::string match(start, input_pos);
+                        TokenPtr t(new Token(match, Token_Type::Id, filename, prev_line, prev_col, line, col));
+                        match_stack.push_back(t);
+                        return true;
+                    }
                 }
                 else {
                     return false;
@@ -323,37 +424,132 @@ namespace chaiscript
                 if (Quoted_String_()) {
                     std::string match;
                     bool is_escaped = false;
-                    for (std::string::iterator s = start + 1, end = input_pos - 1; s != end; ++s) {
-                        if (*s == '\\') {
-                            if (is_escaped) {
-                                match.push_back('\\');
-                                is_escaped = false;
-                            }
-                            else {
-                                is_escaped = true;
-                            }
-                        }
-                        else {
-                            if (is_escaped) {
-                                switch (*s) {
-                                    case ('b') : match.push_back('\b'); break;
-                                    case ('f') : match.push_back('\f'); break;
-                                    case ('n') : match.push_back('\n'); break;
-                                    case ('r') : match.push_back('\r'); break;
-                                    case ('t') : match.push_back('\t'); break;
-                                    case ('\'') : match.push_back('\''); break;
-                                    case ('\"') : match.push_back('\"'); break;
-                                    default: throw Eval_Error("Unknown escaped sequence in string", File_Position(prev_line, prev_col), filename);
+                    bool is_interpolated = false;
+                    bool saw_interpolation_marker = false;
+                    int prev_stack_top = match_stack.size();
+
+                    //for (std::string::iterator s = start + 1, end = input_pos - 1; s != end; ++s) {
+                    std::string::iterator s = start + 1, end = input_pos - 1;
+
+                    while (s != end) {
+                        if (saw_interpolation_marker) {
+                            if (*s == '{') {
+                                //We've found an interpolation point
+
+                                if (is_interpolated) {
+                                    //If we've seen previous interpolation, add on instead of making a new one
+                                    TokenPtr plus(new Token("+", Token_Type::Str, filename, prev_line, prev_col, line, col));
+                                    match_stack.push_back(plus);
+
+                                    TokenPtr t(new Token(match, Token_Type::Quoted_String, filename, prev_line, prev_col, line, col));
+                                    match_stack.push_back(t);
+
+                                    build_match(Token_Type::Additive, prev_stack_top);
+                                }
+                                else {
+                                    TokenPtr t(new Token(match, Token_Type::Quoted_String, filename, prev_line, prev_col, line, col));
+                                    match_stack.push_back(t);
+                                }
+
+                                //We've finished with the part of the string up to this point, so clear it
+                                match = "";
+
+                                TokenPtr plus(new Token("+", Token_Type::Str, filename, prev_line, prev_col, line, col));
+                                match_stack.push_back(plus);
+
+                                std::string eval_match;
+
+                                ++s;
+                                while ((*s != '}') && (s != end)) {
+                                    eval_match.push_back(*s);
+                                    ++s;
+                                }
+                                if (*s == '}') {
+                                    is_interpolated = true;
+                                    ++s;
+
+                                    int tostr_stack_top = match_stack.size();
+
+                                    TokenPtr tostr(new Token("to_string", Token_Type::Id, filename, prev_line, prev_col, line, col));
+                                    match_stack.push_back(tostr);
+
+                                    int ev_stack_top = match_stack.size();
+
+                                    TokenPtr ev(new Token("eval", Token_Type::Id, filename, prev_line, prev_col, line, col));
+                                    match_stack.push_back(ev);
+
+                                    int arg_stack_top = match_stack.size();
+
+                                    TokenPtr t(new Token(eval_match, Token_Type::Quoted_String, filename, prev_line, prev_col, line, col));
+                                    match_stack.push_back(t);
+
+                                    build_match(Token_Type::Arg_List, arg_stack_top);
+
+                                    build_match(Token_Type::Inplace_Fun_Call, ev_stack_top);
+
+                                    build_match(Token_Type::Arg_List, ev_stack_top);
+
+                                    build_match(Token_Type::Fun_Call, tostr_stack_top);
+
+                                    build_match(Token_Type::Additive, prev_stack_top);
+                                }
+                                else {
+                                    throw Eval_Error("Unclosed in-string eval", File_Position(prev_line, prev_col), filename);
                                 }
                             }
                             else {
-                                match.push_back(*s);
+                                match.push_back('$');
                             }
-                            is_escaped = false;
+                            saw_interpolation_marker = false;
+                        }
+                        else {
+                            if (*s == '\\') {
+                                if (is_escaped) {
+                                    match.push_back('\\');
+                                    is_escaped = false;
+                                }
+                                else {
+                                    is_escaped = true;
+                                }
+                            }
+                            else {
+                                if (is_escaped) {
+                                    switch (*s) {
+                                        case ('b') : match.push_back('\b'); break;
+                                        case ('f') : match.push_back('\f'); break;
+                                        case ('n') : match.push_back('\n'); break;
+                                        case ('r') : match.push_back('\r'); break;
+                                        case ('t') : match.push_back('\t'); break;
+                                        case ('\'') : match.push_back('\''); break;
+                                        case ('\"') : match.push_back('\"'); break;
+                                        case ('$') : match.push_back('$'); break;
+                                        default: throw Eval_Error("Unknown escaped sequence in string", File_Position(prev_line, prev_col), filename);
+                                    }
+                                }
+                                else if (*s == '$') {
+                                    saw_interpolation_marker = true;
+                                }
+                                else {
+                                    match.push_back(*s);
+                                }
+                                is_escaped = false;
+                            }
+                            ++s;
                         }
                     }
-                    TokenPtr t(new Token(match, Token_Type::Quoted_String, filename, prev_line, prev_col, line, col));
-                    match_stack.push_back(t);
+                    if (is_interpolated) {
+                        TokenPtr plus(new Token("+", Token_Type::Str, filename, prev_line, prev_col, line, col));
+                        match_stack.push_back(plus);
+
+                        TokenPtr t(new Token(match, Token_Type::Quoted_String, filename, prev_line, prev_col, line, col));
+                        match_stack.push_back(t);
+
+                        build_match(Token_Type::Additive, prev_stack_top);
+                    }
+                    else {
+                        TokenPtr t(new Token(match, Token_Type::Quoted_String, filename, prev_line, prev_col, line, col));
+                        match_stack.push_back(t);
+                    }
                     return true;
                 }
                 else {
@@ -591,7 +787,7 @@ namespace chaiscript
         /**
          * Reads (and potentially captures) a symbol group from input if it matches the parameter
          */
-        bool Symbol(const char *s, bool capture = false) {
+        bool Symbol(const char *s, bool capture = false, bool disallow_prevention=false) {
             SkipWS();
 
             if (!capture) {
@@ -601,7 +797,7 @@ namespace chaiscript
                 bool retval = Symbol_(s);
                 if (retval) {
                     //todo: fix this.  Hacky workaround for preventing substring matches
-                    if ((input_pos != input_end) && ((*input_pos == '+') || (*input_pos == '-') || (*input_pos == '*') || (*input_pos == '/') || (*input_pos == '=') || (*input_pos == '.'))) {
+                    if ((input_pos != input_end) && (disallow_prevention == false) && ((*input_pos == '+') || (*input_pos == '-') || (*input_pos == '*') || (*input_pos == '/') || (*input_pos == '=') || (*input_pos == '.'))) {
                         input_pos = start;
                         col = prev_col;
                         line = prev_line;
@@ -619,7 +815,7 @@ namespace chaiscript
                 int prev_line = line;
                 if (Symbol_(s)) {
                     //todo: fix this.  Hacky workaround for preventing substring matches
-                    if ((input_pos != input_end) && ((*input_pos == '+') || (*input_pos == '-') || (*input_pos == '*') || (*input_pos == '/') || (*input_pos == '=') || (*input_pos == '.'))) {
+                    if ((input_pos != input_end) && (disallow_prevention == false) && ((*input_pos == '+') || (*input_pos == '-') || (*input_pos == '*') || (*input_pos == '/') || (*input_pos == '=') || (*input_pos == '.'))) {
                         input_pos = start;
                         col = prev_col;
                         line = prev_line;
@@ -691,8 +887,10 @@ namespace chaiscript
 
             if (Equation()) {
                 retval = true;
+                while (Eol());
                 if (Char(',')) {
                     do {
+                        while (Eol());
                         if (!Equation()) {
                             throw Eval_Error("Unexpected value in parameter list", match_stack.back());
                         }
@@ -718,8 +916,10 @@ namespace chaiscript
             }
             else if (Map_Pair()) {
                 retval = true;
+                while (Eol());
                 if (Char(',')) {
                     do {
+                        while (Eol());
                         if (!Map_Pair()) {
                             throw Eval_Error("Unexpected value in container", match_stack.back());
                         }
@@ -768,7 +968,7 @@ namespace chaiscript
         bool Def() {
             bool retval = false;
             bool is_annotated = false;
-
+            bool is_method = false;
             TokenPtr annotation;
 
             if (Annotation()) {
@@ -787,6 +987,15 @@ namespace chaiscript
                     throw Eval_Error("Missing function name in definition", File_Position(line, col), filename);
                 }
 
+                if (Symbol("::", false)) {
+                    //We're now a method
+                    is_method = true;
+
+                    if (!Id(true)) {
+                        throw Eval_Error("Missing method name in definition", File_Position(line, col), filename);
+                    }
+                }
+
                 if (Char('(')) {
                     Arg_List();
                     if (!Char(')')) {
@@ -807,7 +1016,12 @@ namespace chaiscript
                     throw Eval_Error("Incomplete function definition", File_Position(line, col), filename);
                 }
 
-                build_match(Token_Type::Def, prev_stack_top);
+                if (is_method) {
+                    build_match(Token_Type::Method, prev_stack_top);
+                }
+                else {
+                    build_match(Token_Type::Def, prev_stack_top);
+                }
 
                 if (is_annotated) {
                     match_stack.back()->annotation = annotation;
@@ -817,6 +1031,67 @@ namespace chaiscript
             return retval;
         }
 
+        /**
+         * Reads a function definition from input
+         */
+        bool Try() {
+            bool retval = false;
+
+            int prev_stack_top = match_stack.size();
+
+            if (Keyword("try")) {
+                retval = true;
+
+                while (Eol());
+
+                if (!Block()) {
+                    throw Eval_Error("Incomplete 'try' block", File_Position(line, col), filename);
+                }
+
+                bool has_matches = true;
+                while (has_matches) {
+                    while (Eol());
+                    has_matches = false;
+                    if (Keyword("catch", false)) {
+                        int catch_stack_top = match_stack.size();
+                        if (Char('(')) {
+                            if (!(Id(true) && Char(')'))) {
+                                throw Eval_Error("Incomplete 'catch' expression", File_Position(line, col), filename);
+                            }
+                            if (Char(':')) {
+                                if (!Expression()) {
+                                    throw Eval_Error("Missing guard expression for catch", File_Position(line, col), filename);
+                                }
+                            }
+                        }
+
+                        while (Eol());
+
+                        if (!Block()) {
+                            throw Eval_Error("Incomplete 'catch' block", File_Position(line, col), filename);
+                        }
+                        build_match(Token_Type::Catch, catch_stack_top);
+                        has_matches = true;
+                    }
+                }
+                while (Eol());
+                if (Keyword("finally", false)) {
+                    int finally_stack_top = match_stack.size();
+
+                    while (Eol());
+
+                    if (!Block()) {
+                        throw Eval_Error("Incomplete 'finally' block", File_Position(line, col), filename);
+                    }
+                    build_match(Token_Type::Finally, finally_stack_top);
+                }
+
+                build_match(Token_Type::Try, prev_stack_top);
+            }
+
+            return retval;
+        }
+
         /**
          * Reads an if/elseif/else block from input
          */
@@ -1022,7 +1297,7 @@ namespace chaiscript
             std::string::iterator prev_pos = input_pos;
 
             unsigned int prev_stack_top = match_stack.size();
-            if (Id(true) || Id_Literal()) {
+            if (Id(true)) {
                 retval = true;
                 bool has_more = true;
 
@@ -1071,6 +1346,22 @@ namespace chaiscript
 
                 build_match(Token_Type::Var_Decl, prev_stack_top);
             }
+            else if (Keyword("attr")) {
+                retval = true;
+
+                if (!Id(true)) {
+                    throw Eval_Error("Incomplete attribute declaration", File_Position(line, col), filename);
+                }
+                if (!Symbol("::", false)) {
+                    throw Eval_Error("Incomplete attribute declaration", File_Position(line, col), filename);
+                }
+                if (!Id(true)) {
+                    throw Eval_Error("Missing attribute name in definition", File_Position(line, col), filename);
+                }
+
+
+                build_match(Token_Type::Attr_Decl, prev_stack_top);
+            }
 
             return retval;
         }
@@ -1126,53 +1417,6 @@ namespace chaiscript
             return retval;
         }
 
-        /**
-         * Reads an identifier literal of the special form `<name>` from input
-         */
-        bool Id_Literal() {
-            bool retval = false;
-
-            SkipWS();
-
-            if ((input_pos != input_end) && (*input_pos == '`')) {
-                retval = true;
-
-                int prev_col = col;
-                int prev_line = line;
-
-                ++col;
-                ++input_pos;
-
-                std::string::iterator start = input_pos;
-
-                while ((input_pos != input_end) && (*input_pos != '`')) {
-                    if (Eol()) {
-                        throw Eval_Error("Carriage return in identifier literal", File_Position(line, col), filename);
-                    }
-                    else {
-                        ++input_pos;
-                        ++col;
-                    }
-                }
-
-                if (start == input_pos) {
-                    throw Eval_Error("Missing contents of identifier literal", File_Position(line, col), filename);
-                }
-                else if (input_pos == input_end) {
-                    throw Eval_Error("Incomplete identifier literal", File_Position(line, col), filename);
-                }
-
-                ++col;
-                std::string match(start, input_pos);
-                TokenPtr t(new Token(match, Token_Type::Id, filename, prev_line, prev_col, line, col));
-                match_stack.push_back(t);
-                ++input_pos;
-
-            }
-
-            return retval;
-        }
-
         /**
          * Reads a unary prefixed expression from input
          */
@@ -1181,24 +1425,6 @@ namespace chaiscript
 
             int prev_stack_top = match_stack.size();
 
-            if (Symbol("-")) {
-                retval = true;
-
-                if (!Dot_Access()) {
-                    throw Eval_Error("Incomplete negation expression", File_Position(line, col), filename);
-                }
-
-                build_match(Token_Type::Negate, prev_stack_top);
-            }
-            else if (Symbol("!")) {
-                retval = true;
-
-                if (!Dot_Access()) {
-                    throw Eval_Error("Incomplete '!' expression", File_Position(line, col), filename);
-                }
-
-                build_match(Token_Type::Not, prev_stack_top);
-            }
             if (Symbol("++", true)) {
                 retval = true;
 
@@ -1217,6 +1443,24 @@ namespace chaiscript
 
                 build_match(Token_Type::Prefix, prev_stack_top);
             }
+            else if (Char('-')) {
+                retval = true;
+
+                if (!Dot_Access()) {
+                    throw Eval_Error("Incomplete negation expression", File_Position(line, col), filename);
+                }
+
+                build_match(Token_Type::Negate, prev_stack_top);
+            }
+            else if (Char('!')) {
+                retval = true;
+
+                if (!Dot_Access()) {
+                    throw Eval_Error("Incomplete '!' expression", File_Position(line, col), filename);
+                }
+
+                build_match(Token_Type::Not, prev_stack_top);
+            }
 
             return retval;
         }
@@ -1242,11 +1486,11 @@ namespace chaiscript
 
             int prev_stack_top = match_stack.size();
 
-            if (Additive()) {
+            if (Shift()) {
                 retval = true;
                 if (Symbol(">=", true) || Symbol(">", true) || Symbol("<=", true) || Symbol("<", true) || Symbol("==", true) || Symbol("!=", true)) {
                     do {
-                        if (!Additive()) {
+                        if (!Shift()) {
                             throw Eval_Error("Incomplete comparison expression", File_Position(line, col), filename);
                         }
                     } while (retval && (Symbol(">=", true) || Symbol(">", true) || Symbol("<=", true) || Symbol("<", true) || Symbol("==", true) || Symbol("!=", true)));
@@ -1330,6 +1574,30 @@ namespace chaiscript
             return retval;
         }
 
+        /**
+         * Top-level expression, parses a string of binary boolean operators from input
+         */
+        bool Shift() {
+            bool retval = false;
+
+            int prev_stack_top = match_stack.size();
+
+            if (Additive()) {
+                retval = true;
+                if (Symbol("<<", true) || Symbol(">>", true)) {
+                    do {
+                        if (!Additive()) {
+                            throw Eval_Error("Incomplete shift expression", File_Position(line, col), filename);
+                        }
+                    } while (retval && (Symbol("<<", true) || Symbol(">>", true)));
+
+                    build_match(Token_Type::Shift, prev_stack_top);
+                }
+            }
+
+            return retval;
+        }
+
         /**
          * Top-level expression, parses a string of binary boolean operators from input
          */
@@ -1419,7 +1687,8 @@ namespace chaiscript
 
             if (Expression()) {
                 retval = true;
-                if (Symbol("=", true) || Symbol(":=", true) || Symbol("+=", true) || Symbol("-=", true) || Symbol("*=", true) || Symbol("/=", true)) {
+                if (Symbol("=", true, true) || Symbol(":=", true, true) || Symbol("+=", true, true) ||
+                        Symbol("-=", true, true) || Symbol("*=", true, true) || Symbol("/=", true, true)) {
                     if (!Equation()) {
                         throw Eval_Error("Incomplete equation", match_stack.back());
                     }
@@ -1450,6 +1719,14 @@ namespace chaiscript
                     retval = true;
                     saw_eol = true;
                 }
+                else if (Try()) {
+                    if (!saw_eol) {
+                        throw Eval_Error("Two function definitions missing line separator", match_stack.back());
+                    }
+                    has_more = true;
+                    retval = true;
+                    saw_eol = true;
+                }
                 else if (If()) {
                     if (!saw_eol) {
                         throw Eval_Error("Two function definitions missing line separator", match_stack.back());
@@ -1503,6 +1780,11 @@ namespace chaiscript
                     retval = true;
                     saw_eol = true;
                 }
+                else if (Block()) {
+                    has_more = true;
+                    retval = true;
+                    saw_eol = true;
+                }
                 else {
                     has_more = false;
                 }

include/chaiscript/language/chaiscript_prelude.hpp

@@ -9,277 +9,321 @@
 
 //Note, the expression "[x,y]" in "collate" is parsed as two separate expressions
 //by C++, so CODE_STRING, takes two expressions and adds in the missing comma
-#define CODE_STRING(x, y) #x ", " #y
+#define CODE_STRING(x, y) #x ", " #y 
 
 #define chaiscript_prelude CODE_STRING(\
-def new(x) { eval(type_name(x))(); } \
-def clone(x) { eval(type_name(x))(x); } \
+def lt(l, r) { if (call_exists(`<`, l, r)) { l < r } else { type_name(l) < type_name(r) } } \n\
+def gt(l, r) { if (call_exists(`>`, l, r)) { l > r } else { type_name(l) > type_name(r) } } \n\
+def eq(l, r) { if (call_exists(`==`, l, r)) { l == r } else { false } } \n\
+def new(x) { eval(type_name(x))(); } \n\
+def clone(x) : function_exists(type_name(x)) && call_exists(eval(type_name(x)), x)  { eval(type_name(x))(x); } \n\
 # to_string for Pair()\n\
-def to_string(x) : call_exists(first, x) && call_exists(second, x) { \
-  "<" + x.first.to_string() + ", " + x.second.to_string() + ">"; \
-}\
+def to_string(x) : call_exists(first, x) && call_exists(second, x) { \n\
+  "<" + x.first.to_string() + ", " + x.second.to_string() + ">"; \n\
+}\n\
 # to_string for containers\n\
-def to_string(x) : call_exists(range, x) && !x.is_type("string"){ \
-  "[" + x.join(", ") + "]"; \
-}\
+def to_string(x) : call_exists(range, x) && !x.is_type("string"){ \n\
+  "[" + x.join(", ") + "]"; \n\
+}\n\
 # Basic to_string function\n\
-def to_string(x) { \
-  internal_to_string(x); \
-}\
+def to_string(x) { \n\
+  internal_to_string(x); \n\
+}\n\
 # Prints to console with no carriage return\n\
-def puts(x) { \
-  print_string(x.to_string()); \
-} \
+def puts(x) { \n\
+  print_string(x.to_string()); \n\
+} \n\
 # Prints to console with carriage return\n\
-def print(x) { \
-  println_string(x.to_string()); \
-} \
+def print(x) { \n\
+  println_string(x.to_string()); \n\
+} \n\
 # Returns the maximum value of two numbers\n\
-def max(a, b) { if (a>b) { a } else { b } } \
+def max(a, b) { if (a>b) { a } else { b } } \n\
 # Returns the minimum value of two numbers\n\
-def min(a, b) { if (a<b) { a } else { b } } \
+def min(a, b) { if (a<b) { a } else { b } } \n\
 # Returns true if the value is odd\n\
-def odd(x)  { if (x % 2 == 1) { true } else { false } } \
+def odd(x)  { if (x % 2 == 1) { true } else { false } } \n\
 # Returns true if the value is even\n\
-def even(x) { if (x % 2 == 0) { true } else { false } } \
+def even(x) { if (x % 2 == 0) { true } else { false } } \n\
 # Pushes the second value onto the container first value while making a clone of the value\n\
 def push_back(container, x) : call_exists(push_back_ref, container, x) { container.push_back_ref(clone(x)) } \n\
+# Pushes the second value onto the front of the container first value while making a clone of the value\n\
+def push_front(container, x) : call_exists(push_front_ref, container, x) { container.push_front_ref(clone(x)) } \n\
 # Inserts the third value at the position of the second value into the container of the first\n\
 # while making a clone. \n\
 def insert_at(container, pos, x) { container.insert_ref_at(pos, clone(x)); } \n\
 # Returns the reverse of the given container\n\
-def reverse(container) {\
-  var retval = new(container); \
-  var r = retro(range(container)); \
-  while (!r.empty()) { \
-    retval.push_back(r.front()); \
-    r.pop_front(); \
-  } \
-  retval; \
-} \
+def reverse(container) {\n\
+  var retval = new(container); \n\
+  var r = range(container); \n\
+  while (!r.empty()) { \n\
+    retval.push_back(r.back()); \n\
+    r.pop_back(); \n\
+  } \n\
+  retval; \n\
+} \n\
+# Return a range from a range \n\
+def range(r) : call_exists(empty, r) && call_exists(pop_front, r) && call_exists(pop_back, r) && call_exists(back, r) && call_exists(front, r) { return clone(r); }\n\
+# The retro attribute that contains the underlying range \n\
+attr retro::m_range; \n\
+# Creates a retro from a retro by returning the original range\n\
+def retro(r) : call_exists(get_type_name, r) && get_type_name(r) == "retro" { clone(r.m_range) }\n\
+# Creates a retro range from a range\n\
+def retro::retro(r) : call_exists(empty, r) && call_exists(pop_front, r) && call_exists(pop_back, r) && call_exists(back, r) && call_exists(front, r) { this.m_range = r; }\n\
+# Returns the first value of a retro\n\
+def retro::front()  { back(this.m_range) }\n\
+# Returns the last value of a retro\n\
+def retro::back()  { front(this.m_range) }\n\
+# Moves the back iterator of a retro towards the front by one \n\
+def retro::pop_back()  { pop_front(this.m_range) }\n\
+# Moves the front iterator of a retro towards the back by one \n\
+def retro::pop_front()  { pop_back(this.m_range) } \n\
+# returns true if the retro is out of elements \n\
+def retro::empty() { empty(this.m_range); } \n\
 # Performs the second value function over the container first value\n\
-def for_each(container, func) : call_exists(range, container) { \
-  var range = range(container); \
-  while (!range.empty()) { \
-    func(range.front()); \
-    range.pop_front(); \
-  } \
-} \
-def back_inserter(container) { \
-  bind(push_back, container, _);     \
-}\
-\
-def map(container, func, inserter) : call_exists(range, container) { \
-  var range = range(container); \
-  while (!range.empty()) { \
-    inserter(func(range.front())); \
-    range.pop_front(); \
-  } \
-} \
+def for_each(container, func) : call_exists(range, container) { \n\
+  var t_range = range(container); \n\
+  while (!t_range.empty()) { \n\
+    func(t_range.front()); \n\
+    t_range.pop_front(); \n\
+  } \n\
+} \n\
+def back_inserter(container) { \n\
+  bind(push_back, container, _);     \n\
+}\n\
+\n\
+def contains(container, item, compare_func) : call_exists(range, container) { \n\
+  var t_range = range(container); \n\
+  while (!t_range.empty()) { \n\
+    if ( compare_func(t_range.front(), item) ) { return true; } \n\
+    t_range.pop_front(); \n\
+  } \n\
+  return false; \n\
+} \n\
+def contains(container, item) { return contains(container, item, eq) } \n\
+def map(container, func, inserter) : call_exists(range, container) { \n\
+  var range = range(container); \n\
+  while (!range.empty()) { \n\
+    inserter(func(range.front())); \n\
+    range.pop_front(); \n\
+  } \n\
+} \n\
 # Performs the second value function over the container first value. Creates a new container with the results\n\
-def map(container, func) { \
-  var retval = new(container); \
-  map(container, func, back_inserter(retval));\
-  retval;\
-}\
+def map(container, func) { \n\
+  var retval = new(container); \n\
+  map(container, func, back_inserter(retval));\n\
+  retval;\n\
+}\n\
 # Performs the second value function over the container first value. Starts with initial and continues with each element.\n\
-def foldl(container, func, initial) : call_exists(range, container){ \
-  var retval = initial; \
-  var range = range(container); \
-  while (!range.empty()) { \
-    retval = (func(range.front(), retval)); \
-    range.pop_front(); \
-  } \
-  retval; \
-} \
+def foldl(container, func, initial) : call_exists(range, container){ \n\
+  var retval = initial; \n\
+  var range = range(container); \n\
+  while (!range.empty()) { \n\
+    retval = (func(range.front(), retval)); \n\
+    range.pop_front(); \n\
+  } \n\
+  retval; \n\
+} \n\
 # Returns the sum of the elements of the given value\n\
-def sum(container) { foldl(container, `+`, 0.0) } \
+def sum(container) { foldl(container, `+`, 0.0) } \n\
 # Returns the product of the elements of the given value\n\
-def product(container) { foldl(container, `*`, 1.0) } \
+def product(container) { foldl(container, `*`, 1.0) } \n\
 # Returns a new container with the elements of the first value concatenated with the elements of the second value\n\
-def concat(x, y) : call_exists(clone, x) { \
-  var retval = x; \
-  var len = y.size(); \
-  var i = 0; \
-  while (i < len) { \
-    retval.push_back(y[i]); \
-    ++i; \
-  } \
-  retval; \
-} \
-def take(container, num, inserter) : call_exists(range, container) { \
-  var r = range(container); \
-  var i = num; \
-  while ((i > 0) && (!r.empty())) { \
-    inserter(r.front()); \
-    r.pop_front(); \
-    --i; \
-  } \
-} \
+def concat(x, y) : call_exists(clone, x) { \n\
+  var retval = x; \n\
+  var len = y.size(); \n\
+  var i = 0; \n\
+  while (i < len) { \n\
+    retval.push_back(y[i]); \n\
+    ++i; \n\
+  } \n\
+  retval; \n\
+} \n\
+def take(container, num, inserter) : call_exists(range, container) { \n\
+  var r = range(container); \n\
+  var i = num; \n\
+  while ((i > 0) && (!r.empty())) { \n\
+    inserter(r.front()); \n\
+    r.pop_front(); \n\
+    --i; \n\
+  } \n\
+} \n\
 # Returns a new container with the given number of elements taken from the container\n\
-def take(container, num) {\
-  var retval = new(container); \
-  take(container, num, back_inserter(retval)); \
-  retval; \
-}\
-def take_while(container, f, inserter) : call_exists(range, container) { \
-  var r = range(container); \
-  while ((!r.empty()) && f(r.front())) { \
-    inserter(r.front()); \
-    r.pop_front(); \
-  } \
-} \
+def take(container, num) {\n\
+  var retval = new(container); \n\
+  take(container, num, back_inserter(retval)); \n\
+  retval; \n\
+}\n\
+def take_while(container, f, inserter) : call_exists(range, container) { \n\
+  var r = range(container); \n\
+  while ((!r.empty()) && f(r.front())) { \n\
+    inserter(r.front()); \n\
+    r.pop_front(); \n\
+  } \n\
+} \n\
 # Returns a new container with the given elements match the second value function\n\
-def take_while(container, f) {\
-  var retval = new(container); \
-  take_while(container, f, back_inserter(retval)); \
-  retval;\
-}\
-def drop(container, num, inserter) : call_exists(range, container) { \
-  var r = range(container); \
-  var i = num; \
-  while ((i > 0) && (!r.empty())) { \
-    r.pop_front(); \
-    --i; \
-  } \
-  while (!r.empty()) { \
-    inserter(r.front()); \
-    r.pop_front(); \
-  } \
-} \
+def take_while(container, f) {\n\
+  var retval = new(container); \n\
+  take_while(container, f, back_inserter(retval)); \n\
+  retval;\n\
+}\n\
+def drop(container, num, inserter) : call_exists(range, container) { \n\
+  var r = range(container); \n\
+  var i = num; \n\
+  while ((i > 0) && (!r.empty())) { \n\
+    r.pop_front(); \n\
+    --i; \n\
+  } \n\
+  while (!r.empty()) { \n\
+    inserter(r.front()); \n\
+    r.pop_front(); \n\
+  } \n\
+} \n\
 # Returns a new container with the given number of elements dropped from the given container \n\
-def drop(container, num) {\
-  var retval = new(container); \
-  drop(container, num, back_inserter(retval)); \
-  retval; \
-}\
-def drop_while(container, f, inserter) : call_exists(range, container) { \
-  var r = range(container); \
-  while ((!r.empty())&& f(r.front())) { \
-    r.pop_front(); \
-  } \
-  while (!r.empty()) { \
-    inserter(r.front()); \
-    r.pop_front(); \
-  } \
-} \
+def drop(container, num) {\n\
+  var retval = new(container); \n\
+  drop(container, num, back_inserter(retval)); \n\
+  retval; \n\
+}\n\
+def drop_while(container, f, inserter) : call_exists(range, container) { \n\
+  var r = range(container); \n\
+  while ((!r.empty())&& f(r.front())) { \n\
+    r.pop_front(); \n\
+  } \n\
+  while (!r.empty()) { \n\
+    inserter(r.front()); \n\
+    r.pop_front(); \n\
+  } \n\
+} \n\
 # Returns a new container with the given elements dropped that match the second value function\n\
-def drop_while(container, f) {\
-  var retval = new(container); \
-  drop_while(container, f, back_inserter(retval)); \
-  retval; \
-}\
+def drop_while(container, f) {\n\
+  var retval = new(container); \n\
+  drop_while(container, f, back_inserter(retval)); \n\
+  retval; \n\
+}\n\
 # Applies the second value function to the container. Starts with the first two elements. Expects at least 2 elements.\n\
-def reduce(container, func) : container.size() >= 2 && call_exists(range, container) { \
-  var r = range(container); \
-  var retval = r.front(); \
-  r.pop_front(); \
-  retval = func(retval, r.front()); \
-  r.pop_front(); \
-  while (!r.empty()) { \
-    retval = func(retval, r.front()); \
-    r.pop_front(); \
-  } \
-  retval; \
-} \
+def reduce(container, func) : container.size() >= 2 && call_exists(range, container) { \n\
+  var r = range(container); \n\
+  var retval = r.front(); \n\
+  r.pop_front(); \n\
+  retval = func(retval, r.front()); \n\
+  r.pop_front(); \n\
+  while (!r.empty()) { \n\
+    retval = func(retval, r.front()); \n\
+    r.pop_front(); \n\
+  } \n\
+  retval; \n\
+} \n\
 # Returns a string of the elements in container delimited by the second value string\n\
-def join(container, delim) { \
-  var retval = ""; \
-  var range = range(container); \
-  if (!range.empty()) { \
-    retval += to_string(range.front()); \
-    range.pop_front(); \
-    while (!range.empty()) { \
-      retval += delim; \
-      retval += to_string(range.front()); \
-      range.pop_front(); \
-    } \
-  } \
-  retval; \
-} \
-def filter(container, f, inserter) : call_exists(range, container) { \
-  var r = range(container); \
-  while (!r.empty()) { \
-    if (f(r.front())) { \
-      inserter(r.front()); \
-    } \
-    r.pop_front(); \
-  } \
-} \
+def join(container, delim) { \n\
+  var retval = ""; \n\
+  var range = range(container); \n\
+  if (!range.empty()) { \n\
+    retval += to_string(range.front()); \n\
+    range.pop_front(); \n\
+    while (!range.empty()) { \n\
+      retval += delim; \n\
+      retval += to_string(range.front()); \n\
+      range.pop_front(); \n\
+    } \n\
+  } \n\
+  retval; \n\
+} \n\
+def filter(container, f, inserter) : call_exists(range, container) { \n\
+  var r = range(container); \n\
+  while (!r.empty()) { \n\
+    if (f(r.front())) { \n\
+      inserter(r.front()); \n\
+    } \n\
+    r.pop_front(); \n\
+  } \n\
+} \n\
 # Returns a new Vector which match the second value function\n\
-def filter(container, f) { \
-  var retval = new(container); \
-  filter(container, f, back_inserter(retval));\
-  retval;\
-}\
-def generate_range(x, y, inserter) { \
-  var i = x; \
-  while (i <= y) { \
-    inserter(i); \
-    ++i; \
-  } \
-} \
+def filter(container, f) { \n\
+  var retval = new(container); \n\
+  filter(container, f, back_inserter(retval));\n\
+  retval;\n\
+}\n\
+def generate_range(x, y, inserter) { \n\
+  var i = x; \n\
+  while (i <= y) { \n\
+    inserter(i); \n\
+    ++i; \n\
+  } \n\
+} \n\
 # Returns a new Vector which represents the range from the first value to the second value\n\
-def generate_range(x, y) { \
-  var retval = Vector(); \
-  generate_range(x,y,back_inserter(retval)); \
-  retval; \
-}\
+def generate_range(x, y) { \n\
+  var retval = Vector(); \n\
+  generate_range(x,y,back_inserter(retval)); \n\
+  retval; \n\
+}\n\
 # Returns a new Vector with the first value to the second value as its elements\n\
-def collate(x, y) { \
-  [x, y]; \
-} \
-def zip_with(f, x, y, inserter) : call_exists(range, x) && call_exists(range, y) { \
-  var r_x = range(x); \
-  var r_y = range(y); \
-  while (!r_x.empty() && !r_y.empty()) { \
-    inserter(f(r_x.front(), r_y.front())); \
-    r_x.pop_front(); \
-    r_y.pop_front(); \
-  } \
-} \
+def collate(x, y) { \n\
+  [x, y]; \n\
+} \n\
+def zip_with(f, x, y, inserter) : call_exists(range, x) && call_exists(range, y) { \n\
+  var r_x = range(x); \n\
+  var r_y = range(y); \n\
+  while (!r_x.empty() && !r_y.empty()) { \n\
+    inserter(f(r_x.front(), r_y.front())); \n\
+    r_x.pop_front(); \n\
+    r_y.pop_front(); \n\
+  } \n\
+} \n\
 # Returns a new Vector which joins matching elements of the second and third value with the first value function\n\
-def zip_with(f, x, y) { \
-  var retval = Vector(); \
-  zip_with(f,x,y,back_inserter(retval)); \
-  retval;\
-}\
+def zip_with(f, x, y) { \n\
+  var retval = Vector(); \n\
+  zip_with(f,x,y,back_inserter(retval)); \n\
+  retval;\n\
+}\n\
 # Returns a new Vector which joins matching elements of the first and second\n\
-def zip(x, y) { \
-  zip_with(collate, x, y); \
-}\
+def zip(x, y) { \n\
+  zip_with(collate, x, y); \n\
+}\n\
 # Returns the position of the second value string in the first value string\n\
-def find(str, substr) { \
-  int(find(str, substr, size_t(0))); \
-} \
+def string::find(substr) : is_type(substr, "string") { \n\
+  int(find(this, substr, size_t(0))); \n\
+} \n\
 # Returns the position of last match of the second value string in the first value string\n\
-def rfind(str, substr) { \
-  int(rfind(str, substr, size_t(-1))); \
-} \
+def string::rfind(substr) : is_type(substr, "string") { \n\
+  int(rfind(this, substr, size_t(-1))); \n\
+} \n\
 # Returns the position of the first match of elements in the second value string in the first value string\n\
-def find_first_of(str, list) { \
-  int(find_first_of(str, list, size_t(0))); \
-} \
+def string::find_first_of(list) : is_type(list, "string") { \n\
+  int(find_first_of(this, list, size_t(0))); \n\
+} \n\
 # Returns the position of the last match of elements in the second value string in the first value string\n\
-def find_last_of(str, list) { \
-  int(find_last_of(str, list, size_t(-1))); \
-} \
+def string::find_last_of(list) : is_type(list, "string") { \n\
+  int(find_last_of(this, list, size_t(-1))); \n\
+} \n\
 # Returns the position of the first non-matching element in the second value string in the first value string\n\
-def find_first_not_of(str, list) { \
-  int(find_first_not_of(str, list, size_t(0))); \
-} \
+def string::find_first_not_of(list) : is_type(list, "string") { \n\
+  int(find_first_not_of(this, list, size_t(0))); \n\
+} \n\
 # Returns the position of the last non-matching element in the second value string in the first value string\n\
-def find_last_not_of(str, list) { \
-  int(find_last_not_of(str, list, size_t(-1))); \
-} \
-def ltrim(str) { \
-  drop_while(str, fun(x) { x == ' ' || x == '\t' }); \
-} \
-def rtrim(str) { \
-  reverse(drop_while(reverse(str), fun(x) { x == ' ' || x == '\t' })); \
-} \
-def trim(str) { \
-  ltrim(rtrim(str)); \
-} \
+def string::find_last_not_of(list) : is_type(list, "string") { \n\
+  int(find_last_not_of(this, list, size_t(-1))); \n\
+} \n\
+def string::ltrim() { \n\
+  drop_while(this, fun(x) { x == ' ' || x == '\t' }); \n\
+} \n\
+def string::rtrim() { \n\
+  reverse(drop_while(reverse(this), fun(x) { x == ' ' || x == '\t' })); \n\
+} \n\
+def string::trim() { \n\
+  ltrim(rtrim(this)); \n\
+} \n\
+def find(container, value, compare_func) : call_exists(range, container) && is_type(compare_func, "function") { \n\
+  var range = range(container); \n\
+  while (!range.empty()) { \n\
+    if (compare_func(range.front(), value)) { \n\
+      return range; \n\
+    } else { \n\
+      range.pop_front(); \n\
+    } \n\
+  } \n\
+  return range; \n\
+} \n\
+def find(container, value) { return find(container, value, eq) } \
 )
 #endif /* CHAISCRIPT_PRELUDE_HPP_ */

msvc/chai-example/chai-example.vcproj

@@ -42,7 +42,7 @@
 			<Tool
 				Name="VCCLCompilerTool"
 				Optimization="0"
-				AdditionalIncludeDirectories="C:\Programming\chaiscript\trunk\include"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)\..\..\include&quot;"
 				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE"
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
@@ -117,6 +117,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="2"
 				EnableIntrinsicFunctions="true"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)\..\..\include&quot;"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
 				RuntimeLibrary="2"
 				EnableFunctionLevelLinking="true"

msvc/chaiscript/Boost.vsprops

@@ -6,7 +6,7 @@
 	>
 	<Tool
 		Name="VCCLCompilerTool"
-		AdditionalIncludeDirectories="&quot;C:\Programming\Boost\include\boost-1_38&quot;"
+		AdditionalIncludeDirectories="&quot;C:\boost\include\boost-1_38&quot;"
 	/>
 	<Tool
 		Name="VCLibrarianTool"
@@ -14,6 +14,6 @@
 	/>
 	<Tool
 		Name="VCLinkerTool"
-		AdditionalLibraryDirectories="C:\Programming\Boost\lib"
+		AdditionalLibraryDirectories="C:\Boost\lib"
 	/>
 </VisualStudioPropertySheet>

msvc/chaiscript/chaiscript.sln

@@ -5,6 +5,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "chaiscript", "chaiscript.vc
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "chai-example", "..\chai-example\chai-example.vcproj", "{CE422E94-B360-4588-8C65-6A9BE80798F9}"
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "test_module", "..\test_module\test_module.vcproj", "{775EDCC2-102F-4E75-A860-9AF398D04145}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
@@ -19,6 +21,10 @@ Global
 		{CE422E94-B360-4588-8C65-6A9BE80798F9}.Debug|Win32.Build.0 = Debug|Win32
 		{CE422E94-B360-4588-8C65-6A9BE80798F9}.Release|Win32.ActiveCfg = Release|Win32
 		{CE422E94-B360-4588-8C65-6A9BE80798F9}.Release|Win32.Build.0 = Release|Win32
+		{775EDCC2-102F-4E75-A860-9AF398D04145}.Debug|Win32.ActiveCfg = Debug|Win32
+		{775EDCC2-102F-4E75-A860-9AF398D04145}.Debug|Win32.Build.0 = Debug|Win32
+		{775EDCC2-102F-4E75-A860-9AF398D04145}.Release|Win32.ActiveCfg = Release|Win32
+		{775EDCC2-102F-4E75-A860-9AF398D04145}.Release|Win32.Build.0 = Release|Win32
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

msvc/chaiscript/chaiscript.vcproj

@@ -23,7 +23,7 @@
 			ConfigurationType="1"
 			InheritedPropertySheets=".\Boost.vsprops"
 			UseOfMFC="2"
-			CharacterSet="0"
+			CharacterSet="1"
 			>
 			<Tool
 				Name="VCPreBuildEventTool"
@@ -49,7 +49,7 @@
 				MinimalRebuild="true"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="3"
-				DisableLanguageExtensions="true"
+				DisableLanguageExtensions="false"
 				TreatWChar_tAsBuiltInType="false"
 				UsePrecompiledHeader="0"
 				WarningLevel="4"
@@ -100,7 +100,7 @@
 			IntermediateDirectory="$(ConfigurationName)"
 			ConfigurationType="1"
 			InheritedPropertySheets=".\Boost.vsprops"
-			CharacterSet="0"
+			CharacterSet="1"
 			WholeProgramOptimization="1"
 			>
 			<Tool
@@ -122,7 +122,7 @@
 				Name="VCCLCompilerTool"
 				Optimization="3"
 				EnableIntrinsicFunctions="true"
-				AdditionalIncludeDirectories="&quot;$(ProjectDir)\..\..\dispatchkit&quot;;&quot;$(ProjectDir)\..\..\chaiscript&quot;"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)\..\..\include&quot;"
 				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE"
 				RuntimeLibrary="2"
 				EnableFunctionLevelLinking="true"
@@ -221,14 +221,30 @@
 				RelativePath="..\..\include\chaiscript\language\chaiscript_prelude.hpp"
 				>
 			</File>
+			<File
+				RelativePath="..\..\include\chaiscript\chaiscript_threading.hpp"
+				>
+			</File>
 			<File
 				RelativePath="..\..\include\chaiscript\dispatchkit\dispatchkit.hpp"
 				>
 			</File>
+			<File
+				RelativePath="..\..\include\chaiscript\dispatchkit\dynamic_object.hpp"
+				>
+			</File>
 			<File
 				RelativePath="..\..\include\chaiscript\dispatchkit\function_call.hpp"
 				>
 			</File>
+			<File
+				RelativePath="..\..\include\chaiscript\dispatchkit\function_call_detail.hpp"
+				>
+			</File>
+			<File
+				RelativePath="..\..\include\chaiscript\dispatchkit\handle_return.hpp"
+				>
+			</File>
 			<File
 				RelativePath="..\..\include\chaiscript\dispatchkit\proxy_constructors.hpp"
 				>
@@ -237,6 +253,10 @@
 				RelativePath="..\..\include\chaiscript\dispatchkit\proxy_functions.hpp"
 				>
 			</File>
+			<File
+				RelativePath="..\..\include\chaiscript\dispatchkit\proxy_functions_detail.hpp"
+				>
+			</File>
 			<File
 				RelativePath="..\..\include\chaiscript\dispatchkit\register_function.hpp"
 				>

msvc/test_module/test_module.vcproj

@@ -0,0 +1,198 @@
+<?xml version="1.0" encoding="Windows-1252"?>
+<VisualStudioProject
+	ProjectType="Visual C++"
+	Version="9.00"
+	Name="test_module"
+	ProjectGUID="{775EDCC2-102F-4E75-A860-9AF398D04145}"
+	RootNamespace="test_module"
+	Keyword="Win32Proj"
+	TargetFrameworkVersion="196613"
+	>
+	<Platforms>
+		<Platform
+			Name="Win32"
+		/>
+	</Platforms>
+	<ToolFiles>
+	</ToolFiles>
+	<Configurations>
+		<Configuration
+			Name="Debug|Win32"
+			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
+			IntermediateDirectory="$(ConfigurationName)"
+			ConfigurationType="2"
+			InheritedPropertySheets="..\chaiscript\Boost.vsprops"
+			UseOfMFC="0"
+			CharacterSet="0"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="0"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)\..\..\include&quot;"
+				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS;_USRDLL;TEST_MODULE_EXPORTS"
+				MinimalRebuild="true"
+				BasicRuntimeChecks="3"
+				RuntimeLibrary="3"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				DebugInformationFormat="4"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="2"
+				GenerateDebugInformation="true"
+				SubSystem="2"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+		<Configuration
+			Name="Release|Win32"
+			OutputDirectory="$(SolutionDir)$(ConfigurationName)"
+			IntermediateDirectory="$(ConfigurationName)"
+			ConfigurationType="2"
+			InheritedPropertySheets="..\chaiscript\Boost.vsprops"
+			CharacterSet="1"
+			WholeProgramOptimization="1"
+			>
+			<Tool
+				Name="VCPreBuildEventTool"
+			/>
+			<Tool
+				Name="VCCustomBuildTool"
+			/>
+			<Tool
+				Name="VCXMLDataGeneratorTool"
+			/>
+			<Tool
+				Name="VCWebServiceProxyGeneratorTool"
+			/>
+			<Tool
+				Name="VCMIDLTool"
+			/>
+			<Tool
+				Name="VCCLCompilerTool"
+				Optimization="2"
+				EnableIntrinsicFunctions="true"
+				AdditionalIncludeDirectories="&quot;$(ProjectDir)\..\..\include&quot;"
+				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS;_USRDLL;TEST_MODULE_EXPORTS"
+				RuntimeLibrary="2"
+				EnableFunctionLevelLinking="true"
+				UsePrecompiledHeader="0"
+				WarningLevel="3"
+				DebugInformationFormat="3"
+			/>
+			<Tool
+				Name="VCManagedResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCResourceCompilerTool"
+			/>
+			<Tool
+				Name="VCPreLinkEventTool"
+			/>
+			<Tool
+				Name="VCLinkerTool"
+				LinkIncremental="1"
+				GenerateDebugInformation="true"
+				SubSystem="2"
+				OptimizeReferences="2"
+				EnableCOMDATFolding="2"
+				TargetMachine="1"
+			/>
+			<Tool
+				Name="VCALinkTool"
+			/>
+			<Tool
+				Name="VCManifestTool"
+			/>
+			<Tool
+				Name="VCXDCMakeTool"
+			/>
+			<Tool
+				Name="VCBscMakeTool"
+			/>
+			<Tool
+				Name="VCFxCopTool"
+			/>
+			<Tool
+				Name="VCAppVerifierTool"
+			/>
+			<Tool
+				Name="VCPostBuildEventTool"
+			/>
+		</Configuration>
+	</Configurations>
+	<References>
+	</References>
+	<Files>
+		<Filter
+			Name="Source Files"
+			Filter="cpp;c;cc;cxx;def;odl;idl;hpj;bat;asm;asmx"
+			UniqueIdentifier="{4FC737F1-C7A5-4376-A066-2A32D752A2FF}"
+			>
+			<File
+				RelativePath="..\..\src\test_module.cpp"
+				>
+			</File>
+		</Filter>
+		<Filter
+			Name="Header Files"
+			Filter="h;hpp;hxx;hm;inl;inc;xsd"
+			UniqueIdentifier="{93995380-89BD-4b04-88EB-625FBE52EBFB}"
+			>
+		</Filter>
+		<Filter
+			Name="Resource Files"
+			Filter="rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav"
+			UniqueIdentifier="{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}"
+			>
+		</Filter>
+	</Files>
+	<Globals>
+	</Globals>
+</VisualStudioProject>

run_unit_tests.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
 
+
 successes=0
 failures=0
 
@@ -8,7 +9,7 @@ for file in unittests/*.chai
 do
   tstname=${file%.*}
 	tst="$tstname.txt"
-	./chaiscript_eval $file > /tmp/tstout.txt
+	LD_LIBRARY_PATH=. ./chaiscript_eval $file > /tmp/tstout.txt
 	diff $tst /tmp/tstout.txt
 	if [ "$?" -eq "0" ]
 	then

run_unit_tests_win.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+successes=0
+failures=0
+
+echo -n "Running unit tests"
+for file in unittests/*.chai
+do
+  tstname=${file%.*}
+	tst="$tstname.txt"
+	./chaiscript_eval $file > /tmp/tstout.txt
+        cat $tst > /tmp/tstmaster.txt
+        awk 'sub("$", "\r")' $tst > /tmp/tstmaster.txt
+	diff /tmp/tstmaster.txt /tmp/tstout.txt
+	if [ "$?" -eq "0" ]
+	then
+		echo -n "."
+		successes=$((successes+1))
+	else
+		echo "[from failed test $file]"
+		failures=$((failures+1))
+	fi
+done
+echo ""
+
+total=$((successes+failures))
+echo "$successes out of $total succeeded"

samples/if.chai

@@ -2,7 +2,7 @@ var i = 0
 if (i == 0) {
 	print("i is 0")
 }
-elseif (i == 1) {
+else if (i == 1) {
 	print("i is 1")
 }
 else {

src/example.cpp

@@ -22,6 +22,22 @@ void log(const std::string &module, const std::string &msg)
   std::cout << "[" << boost::posix_time::microsec_clock::local_time() << "] <" << module << "> " << msg << std::endl;
 }
 
+void bound_log(const std::string &msg)
+{
+  log(msg);
+}
+
+void hello_world(const chaiscript::Boxed_Value &o)
+{
+  std::cout << "Hello World" << std::endl;
+}
+
+void hello_constructor(const chaiscript::Boxed_Value &o)
+{
+  std::cout << "Hello Constructor" << std::endl;
+}
+
+
 struct System
 {
   std::map<std::string, boost::function<std::string (const std::string &) > > m_callbacks;
@@ -45,6 +61,10 @@ struct System
   }
 };
 
+void take_shared_ptr(const boost::shared_ptr<const std::string> &p)
+{
+  std::cout << *p << std::endl;
+}
 
 int main(int argc, char *argv[]) {
   using namespace chaiscript;
@@ -55,10 +75,15 @@ int main(int argc, char *argv[]) {
   System system;
   chai.add(var(&system), "system");
 
+  //Add a bound callback method
+  chai.add(fun(&System::add_callback, system), "add_callback_bound");
+
   //Register the two methods of the System structure.
   chai.add(fun(&System::add_callback), "add_callback");
   chai.add(fun(&System::do_callbacks), "do_callbacks");
 
+  chai.add(fun(&take_shared_ptr), "take_shared_ptr");
+
   // Let's use chaiscript to add a new lambda callback to our system. 
   // The function "{ 'Callback1' + x }" is created in chaiscript and passed into our C++ application
   // in the "add_callback" function of struct System the chaiscript function is converted into a 
@@ -85,7 +110,7 @@ int main(int argc, char *argv[]) {
 
   //Finally, it is possible to register any boost::function as a system function, in this 
   //way, we can, for instance add a bound member function to the system
-  chai.add(fun(boost::function<void ()>(boost::bind(&System::do_callbacks, boost::ref(system), "Bound Test"))), "do_callbacks");
+  chai.add(fun(&System::do_callbacks, boost::ref(system), "Bound Test"), "do_callbacks");
 
   //Call bound version of do_callbacks
   chai("do_callbacks()");
@@ -123,5 +148,20 @@ int main(int argc, char *argv[]) {
   //mostly supported currently
   chai.add(bootstrap::vector_type<std::vector<int> >("IntVector"));
 
+
+  // Test ability to register a function that excepts a shared_ptr version of a type
+  chai("take_shared_ptr(\"Hello World as a shared_ptr\");");
+
+  chai.add(fun(&bound_log, std::string("Msg")), "BoundFun");
+
+  //Dynamic objects test
+  chai.add(chaiscript::Proxy_Function(new Dynamic_Object_Function("TestType", fun(&hello_world))), "hello_world");
+  chai.add(chaiscript::Proxy_Function(new Dynamic_Object_Constructor("TestType", fun(&hello_constructor))), "TestType");
+  chai.add(fun(boost::function<Boxed_Value (Dynamic_Object &)>(boost::bind(&Dynamic_Object_Attribute::func, "TestType", "attr", _1))), "attr");
+
+  chai.eval("var x = TestType()");
+  chai.eval("x.attr = \"hi\"");
+  chai.eval("print(x.attr)");
+  chai.eval("x.hello_world()");
 }
 

src/main.cpp

@@ -6,22 +6,48 @@
 
 #include <iostream>
 
+#include <list>
+
+#ifdef READLINE_AVAILABLE
+#include <readline/readline.h>
+#include <readline/history.h>
+#endif
+
 #include <chaiscript/chaiscript.hpp>
 
 void print_help() {
-    std::cout << "ChaiScript evaluator.  To evaluate and expression, type it and press <enter>." << std::endl;
+    std::cout << "ChaiScript evaluator.  To evaluate an expression, type it and press <enter>." << std::endl;
     std::cout << "Additionally, you can inspect the runtime system using:" << std::endl;
     std::cout << "  dump_system() - outputs all functions registered to the system" << std::endl;
     std::cout << "  dump_object(x) - dumps information about the given symbol" << std::endl;
 }
 
+std::string get_next_command() {
+#ifdef READLINE_AVAILABLE
+    char *input_raw;
+    input_raw = readline("eval> ");
+    add_history(input_raw);
+    return std::string(input_raw);
+#else
+    std::string retval;
+    std::cout << "eval> ";
+    std::getline(std::cin, retval);
+    return retval;
+#endif
+}
+
 int main(int argc, char *argv[]) {
     std::string input;
     chaiscript::ChaiScript chai;
 
+
     if (argc < 2) {
-        std::cout << "eval> ";
-        std::getline(std::cin, input);
+        //std::cout << "eval> ";
+        //std::getline(std::cin, input);
+#ifdef READLINE_AVAILABLE
+        using_history();
+#endif
+        input = get_next_command();
         while (input != "quit") {
 
             chaiscript::Boxed_Value val;
@@ -35,7 +61,7 @@ int main(int argc, char *argv[]) {
                     val = chai.eval(input);
 
                     //Then, we try to print the result of the evaluation to the user
-                    if (val.get_type_info().m_bare_type_info && *(val.get_type_info().m_bare_type_info) != typeid(void)) {
+                    if (!val.get_type_info().bare_equal(chaiscript::user_type<void>())) {
                         try {
                             chaiscript::dispatch(chai.get_eval_engine().get_function("print"), chaiscript::Param_List_Builder() << val);
                         }
@@ -49,8 +75,7 @@ int main(int argc, char *argv[]) {
                 }
             }
 
-            std::cout << "eval> ";
-            std::getline(std::cin, input);
+            input = get_next_command();
         }
     }
     else {

src/multithreaded.cpp

@@ -0,0 +1,38 @@
+// This file is distributed under the BSD License.
+// See "license.txt" for details.
+// Copyright 2009, Jonathan Turner (jturner@minnow-lang.org)
+// and Jason Turner (lefticus@gmail.com)
+// http://www.chaiscript.com
+
+#include <iostream>
+
+#include <list>
+
+#include <chaiscript/chaiscript.hpp>
+#include <boost/thread.hpp>
+
+void do_work(chaiscript::ChaiScript &c)
+{
+//  c("use(\"work.chai\"); do_chai_work(num_iterations);");
+  c("use(\"work.chai\"); do_chai_work(10000);");
+}
+
+int main(int argc, char *argv[]) {
+    std::string input;
+    chaiscript::ChaiScript chai;
+
+    //chai.add_shared_object(chaiscript::Boxed_Value(10000), "num_iterations");
+
+    std::vector<boost::shared_ptr<boost::thread> > threads;
+
+    for (int i = 0; i < argc - 1; ++i)
+    {
+      threads.push_back(boost::shared_ptr<boost::thread>(new boost::thread(boost::bind(do_work, boost::ref(chai)))));
+    }
+
+    for (int i = 0; i < argc - 1; ++i)
+    {
+      threads[i]->join();
+    }
+}
+

src/stl_extra.cpp

@@ -0,0 +1,9 @@
+
+#include <chaiscript/chaiscript.hpp>
+#include <string>
+
+
+CHAISCRIPT_MODULE_EXPORT chaiscript::ModulePtr create_chaiscript_module_stl_extra()
+{
+  return chaiscript::bootstrap::list_type<std::list<chaiscript::Boxed_Value> >("List");
+}

src/test_module.cpp

@@ -0,0 +1,16 @@
+
+#include <chaiscript/chaiscript.hpp>
+#include <string>
+
+std::string hello_world()
+{
+  return "Hello World";
+}
+
+CHAISCRIPT_MODULE_EXPORT  chaiscript::ModulePtr create_chaiscript_module_test()
+{
+  chaiscript::ModulePtr m(new chaiscript::Module());
+
+  m->add(chaiscript::fun(hello_world), "hello_world");
+  return m;
+}

src/work.chai

@@ -0,0 +1,10 @@
+def do_chai_work(num_iters)
+{
+  var i = 0;
+  for (var k = 0; k<num_iters * 10; ++k)
+  {
+    i += k;
+  }
+
+  print(i);
+}

unittests/block_start.chai

@@ -0,0 +1 @@
+{print("hello")}

unittests/block_start.txt

@@ -0,0 +1 @@
+hello

unittests/equ_shortform.chai

@@ -0,0 +1,4 @@
+var x=.5
+print(x)
+var y=-.5
+print(y)

unittests/equ_shortform.txt

@@ -0,0 +1,2 @@
+0.5
+-0.5

unittests/exception.chai

@@ -0,0 +1,9 @@
+var x = 1
+try {
+  throw(x)
+  x = 2
+}
+catch(e) {
+  x = e + 3
+}
+print(x)

unittests/exception.txt

@@ -0,0 +1 @@
+4

unittests/exception_finally.chai

@@ -0,0 +1,19 @@
+try {
+  throw(3)
+}
+catch(x) { 
+  print(x)
+}
+finally {
+  print("Finally #1")
+}
+
+try {
+  print("Safe")
+}
+catch {
+  print("Caught")
+}
+finally {
+  print("Finally #2")
+}

unittests/exception_finally.txt

@@ -0,0 +1,4 @@
+3
+Finally #1
+Safe
+Finally #2

unittests/exception_guards.chai

@@ -0,0 +1,28 @@
+for (var i = 2; i < 6; ++i) {
+  try {
+    throw(i)
+  }
+  catch(e) : e < 2 {
+    print("Catch 1: " + e.to_string())
+  }
+  catch(e) : e < 4 {
+    print("Catch 2: " + e.to_string())
+  }
+  catch(e) {
+    print("Catch 3: " + e.to_string())
+  }
+  catch {
+    print("This is never called")
+  }
+}
+
+try {
+  throw(3)
+}
+catch(e) : e < 3 
+{
+  print("Caught less than 3") 
+}
+catch {
+  print("Backup catch")
+}

unittests/exception_guards.txt

@@ -0,0 +1,5 @@
+Catch 2: 2
+Catch 2: 3
+Catch 3: 4
+Catch 3: 5
+Backup catch

unittests/float.chai

@@ -0,0 +1,2 @@
+print(1.2)
+print(.5)

unittests/float.txt

@@ -0,0 +1,2 @@
+1.2
+0.5

unittests/for_each_range.chai

@@ -0,0 +1,3 @@
+var v = [1,2,3];
+var r = range(v);
+for_each(r, print)

unittests/for_each_range.txt

@@ -0,0 +1,3 @@
+1
+2
+3

unittests/for_each_retro.chai

@@ -0,0 +1,3 @@
+var v = [1,2,3];
+var r = retro(range(v));
+for_each(r, print)

unittests/for_each_retro.txt

@@ -0,0 +1,3 @@
+3
+2
+1

unittests/function_reassignment.chai

@@ -0,0 +1,3 @@
+var x = `+`
+x = `-`
+print(x(5,4))

unittests/function_reassignment.txt

@@ -0,0 +1 @@
+1

unittests/instring_eval.chai

@@ -0,0 +1,3 @@
+var bob = 5.5
+print("${bob}")
+print("val: ${5.5 + 2.5} and ${bob + 2.5}")

unittests/instring_eval.txt

@@ -0,0 +1,2 @@
+5.5
+val: 8 and 8

unittests/instring_eval_more.chai

@@ -0,0 +1,4 @@
+print("$ {4 + 5}")
+print("$${4+5}")
+print("Value: \${4 + 5}")
+print("Value: \$${4 + 5}")

unittests/instring_eval_more.txt

@@ -0,0 +1,4 @@
+$ {4 + 5}
+$9
+Value: ${4 + 5}
+Value: $9

unittests/invalid_function_assignment.chai

@@ -0,0 +1 @@
+clone = `-`

unittests/invalid_function_assignment.txt

@@ -0,0 +1 @@
+Error: "Mismatched types in equation" in 'unittests/invalid_function_assignment.chai' at (1, 7)

unittests/invalid_function_reassignment.chai

@@ -0,0 +1,2 @@
+var x = 5
+x = `-`

unittests/invalid_function_reassignment.txt

@@ -0,0 +1 @@
+Error: "Mismatched types in equation" in 'unittests/invalid_function_reassignment.chai' at (2, 3)

unittests/list_push_back.chai

@@ -0,0 +1,6 @@
+load_module("stl_extra")
+
+var x = List()
+x.push_back(3)
+x.push_back("A")
+print(x)

unittests/list_push_back.txt

@@ -0,0 +1 @@
+[3, A]

unittests/list_push_front.chai

@@ -0,0 +1,6 @@
+load_module("stl_extra")
+
+var x = List()
+x.push_front(3)
+x.push_front("A")
+print(x)

unittests/list_push_front.txt

@@ -0,0 +1 @@
+[A, 3]

unittests/load_module.chai

@@ -0,0 +1,2 @@
+load_module("test")
+print(hello_world())

unittests/load_module.txt

@@ -0,0 +1 @@
+Hello World

unittests/loop_inner_outer.chai

@@ -0,0 +1,10 @@
+var total = 0
+
+for (var i = 0; i < 10; ++i) {
+  for (var j = 0; j < 10; ++j) {
+    total += 1
+  }
+}
+
+print(total)
+    

unittests/loop_inner_outer.txt

@@ -0,0 +1 @@
+100

unittests/math_dec.chai

@@ -1 +1,2 @@
-print(--3)
+var i = 3
+print(--i)

unittests/math_inc.chai

@@ -1 +1,2 @@
-print(++3)
+var i = 3
+print(++i)

unittests/method_lambda.chai

@@ -0,0 +1,3 @@
+var addit = fun(x, y) { return x+y }
+
+print(3.addit(4))

unittests/method_lambda.txt

@@ -0,0 +1 @@
+7

unittests/multiline.chai

@@ -0,0 +1,7 @@
+var x = [1, 2,
+ 3, 4]
+
+print(x)
+
+print(map(x, 
+ fun(x) { x + 1 }))

unittests/multiline.txt

@@ -0,0 +1,2 @@
+[1, 2, 3, 4]
+[2, 3, 4, 5]

unittests/number_formats.chai

@@ -0,0 +1,2 @@
+print(012)
+print(0x1f)

unittests/number_formats.txt

@@ -0,0 +1,2 @@
+10
+31

unittests/object_attr.chai

@@ -0,0 +1,5 @@
+attr bob::z
+def bob::bob() { this.z = 10 }
+var x = bob()
+def bob::fred(x) { this.z - x }
+print(x.fred(3))

unittests/object_attr.txt

@@ -0,0 +1 @@
+7

unittests/object_clone.chai

@@ -0,0 +1,11 @@
+attr bob::z
+def bob::bob() { }
+
+var x = bob();
+x.z = 10;
+
+var y = clone(x);
+y.z = 20;
+
+print(x.z);
+print(y.z);

unittests/object_clone.txt

@@ -0,0 +1,2 @@
+10
+20

unittests/object_constructor_guards.chai

@@ -0,0 +1,5 @@
+def bob::bob(x) : x < 10 { print("constructed less than 10: " + x.to_string()) }
+def bob::bob(x) { print("constructed any old: " + x.to_string()) }
+
+var b = bob(12)
+var c = bob(3)

unittests/object_constructor_guards.txt

@@ -0,0 +1,2 @@
+constructed any old: 12
+constructed less than 10: 3

unittests/object_method_guards.chai

@@ -0,0 +1,7 @@
+def bob::bob() { }
+def bob::fred(e) : e < 10 { print("e less than 10") }
+def bob::fred(e) { print("e is some value") }
+
+var b = bob()
+b.fred(3)
+b.fred(12)

unittests/object_method_guards.txt

@@ -0,0 +1,2 @@
+e less than 10
+e is some value

unittests/operator_overload.chai

@@ -0,0 +1,8 @@
+def Bob::`+`(y) { this.x + y.x }
+def Bob::Bob() { }
+attr Bob::x
+var b = Bob()
+var c = Bob()
+b.x = 4
+c.x = 5
+print(b+c)

unittests/operator_overload.txt

@@ -0,0 +1 @@
+9

unittests/operator_overload2.chai

@@ -0,0 +1,8 @@
+def Bob::Bob() { }
+attr Bob::x
+def `-`(a, b) : is_type(a, "Bob") && is_type(b, "Bob") { a.x - b.x }
+var b = Bob()
+var c = Bob()
+b.x = 4
+c.x = 5
+print(b-c)

unittests/operator_overload2.txt

@@ -0,0 +1 @@
+-1

unittests/range_contains.chai

@@ -0,0 +1,5 @@
+var v = [1,2,"hi", "world", 5.5]
+print(v.contains(5.5));
+print(v.contains(0));
+print(v.contains(1, lt));
+print(v.contains(2, `==`));

unittests/range_contains.txt

@@ -0,0 +1,4 @@
+true
+false
+false
+true

unittests/range_find.chai

@@ -0,0 +1,5 @@
+var v = [2, 1, "Hi", 5.5]
+var r = v.find("Hi");
+print(r);
+var r2 = v.find(2, `<`);
+print(r2);

unittests/range_find.txt

@@ -0,0 +1,2 @@
+[Hi, 5.5]
+[1, Hi, 5.5]

unittests/ref_equal.chai

@@ -0,0 +1,4 @@
+var i = 3
+var j := i
+j = 4
+print(i)

unittests/ref_equal.txt

@@ -0,0 +1 @@
+4

unittests/retroretro.chai

@@ -0,0 +1,7 @@
+var x = [1, 2, 3, 4]
+var r = retro(range(x))
+r.pop_back()
+var r2 = retro(r)
+r2.pop_front()
+print(r.back())
+print(r2.front())