generic-library/ChaiScript
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Extreme error reporting capabilities update and bug fixes

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This commit is contained in:
Jason Turner
2012-06-25 06:31:34 -06:00
parent 5a76d98692
commit a8ea5f151d
5 changed files with 373 additions and 50 deletions
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218
include/chaiscript/language/chaiscript_common.hpp
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@@ -69,18 +69,23 @@ namespace chaiscript
File_Position start_position;
File_Position end_position;
std::string filename;
std::string detail;
std::vector<AST_NodePtr> call_stack;
eval_error(const std::string &t_why, const File_Position &t_where, const std::string &t_fname,
const std::vector<Boxed_Value> &t_parameters, const chaiscript::detail::Dispatch_Engine &t_ss) :
std::runtime_error(format(t_why, t_where, t_fname, t_parameters, t_ss)),
reason(t_why), start_position(t_where), end_position(t_where), filename(t_fname)
const std::vector<Boxed_Value> &t_parameters, const std::vector<chaiscript::Const_Proxy_Function> &t_functions,
bool t_dot_notation,
const chaiscript::detail::Dispatch_Engine &t_ss) :
std::runtime_error(format(t_why, t_where, t_fname, t_parameters, t_dot_notation, t_ss)),
reason(t_why), start_position(t_where), end_position(t_where), filename(t_fname), detail(format_detail(t_functions, t_dot_notation, t_ss))
{}
eval_error(const std::string &t_why,
const std::vector<Boxed_Value> &t_parameters, const chaiscript::detail::Dispatch_Engine &t_ss) :
std::runtime_error(format(t_why, t_parameters, t_ss)),
reason(t_why)
const std::vector<Boxed_Value> &t_parameters, const std::vector<chaiscript::Const_Proxy_Function> &t_functions,
bool t_dot_notation,
const chaiscript::detail::Dispatch_Engine &t_ss) :
std::runtime_error(format(t_why, t_parameters, t_dot_notation, t_ss)),
reason(t_why), detail(format_detail(t_functions, t_dot_notation, t_ss))
{}
@@ -94,19 +99,181 @@ namespace chaiscript
reason(t_why)
{}
std::string pretty_print() const
{
std::ostringstream ss;
ss << what();
if (call_stack.size() > 0) {
ss << "during evaluation at (" << fname(call_stack[0]) << " " << startpos(call_stack[0]) << ")" << std::endl;
ss << std::endl << detail << std::endl;
ss << " " << fname(call_stack[0]) << " (" << startpos(call_stack[0]) << ") '" << pretty(call_stack[0]) << "'";
for (size_t j = 1; j < call_stack.size(); ++j) {
if (id(call_stack[j]) != chaiscript::AST_Node_Type::Block
&& id(call_stack[j]) != chaiscript::AST_Node_Type::File)
{
ss << std::endl;
ss << " from " << fname(call_stack[j]) << " (" << startpos(call_stack[j]) << ") '" << pretty(call_stack[j]) << "'";
}
}
}
ss << std::endl;
return ss.str();
}
virtual ~eval_error() throw() {}
private:
template<typename T>
static int id(const T& t)
{
return t->identifier;
}
template<typename T>
static std::string pretty(const T& t)
{
return t->pretty_print();
}
template<typename T>
static std::string fname(const T& t)
{
return *t->filename;
}
template<typename T>
static std::string startpos(const T& t)
{
std::ostringstream oss;
oss << t->start.line << ", " << t->start.column;
return oss.str();
}
static std::string format_why(const std::string &t_why)
{
return "Error: \"" + t_why + "\"";
}
static std::string format_parameters(const std::vector<Boxed_Value> &t_parameters,
static std::string format_types(const Const_Proxy_Function &t_func,
bool t_dot_notation,
const chaiscript::detail::Dispatch_Engine &t_ss)
{
int arity = t_func->get_arity();
std::vector<Type_Info> types = t_func->get_param_types();
std::string retval;
if (arity == -1)
{
retval = "(...)";
if (t_dot_notation)
{
retval = "(Object)." + retval;
}
} else if (types.size() <= 1) {
retval = "()";
} else {
std::stringstream ss;
ss << "(";
std::string paramstr;
for (size_t index = 1;
index != types.size();
++index)
{
paramstr += (types[index].is_const()?"const ":"");
paramstr += t_ss.get_type_name(types[index]);
if (index == 1 && t_dot_notation)
{
paramstr += ").(";
if (types.size() == 2)
{
paramstr += ", ";
}
} else {
paramstr += ", ";
}
}
ss << paramstr.substr(0, paramstr.size() - 2);
ss << ")";
retval = ss.str();
}
boost::shared_ptr<const dispatch::Dynamic_Proxy_Function> dynfun
= boost::dynamic_pointer_cast<const dispatch::Dynamic_Proxy_Function>(t_func);
if (dynfun)
{
Proxy_Function f = dynfun->get_guard();
if (f)
{
boost::shared_ptr<const dispatch::Dynamic_Proxy_Function> dynfunguard
= boost::dynamic_pointer_cast<const dispatch::Dynamic_Proxy_Function>(f);
if (dynfunguard)
{
retval += " : " + format_guard(dynfunguard->get_parse_tree());
}
}
retval += "\n Defined at " + format_location(dynfun->get_parse_tree());
}
return retval;
}
template<typename T>
static std::string format_guard(const T &t)
{
return t->pretty_print();
}
template<typename T>
static std::string format_location(const T &t)
{
std::ostringstream oss;
oss << "(" << *t->filename << " " << t->start.line << ", " << t->start.column << ")";
return oss.str();
}
static std::string format_detail(const std::vector<chaiscript::Const_Proxy_Function> &t_functions,
bool t_dot_notation,
const chaiscript::detail::Dispatch_Engine &t_ss)
{
std::stringstream ss;
ss << "With parameters: (";
if (t_functions.size() == 1)
{
ss << " Expected: " << format_types(t_functions[0], t_dot_notation, t_ss) << std::endl;
} else {
ss << " " << t_functions.size() << " overloads available:" << std::endl;
for (std::vector<chaiscript::Const_Proxy_Function>::const_iterator itr = t_functions.begin();
itr != t_functions.end();
++itr)
{
ss << " " << format_types((*itr), t_dot_notation, t_ss) << std::endl;
}
}
return ss.str();
}
static std::string format_parameters(const std::vector<Boxed_Value> &t_parameters,
bool t_dot_notation,
const chaiscript::detail::Dispatch_Engine &t_ss)
{
std::stringstream ss;
ss << "(";
if (!t_parameters.empty())
{
@@ -118,7 +285,17 @@ namespace chaiscript
{
paramstr += (itr->is_const()?"const ":"");
paramstr += t_ss.type_name(*itr);
paramstr += ", ";
if (itr == t_parameters.begin() && t_dot_notation)
{
paramstr += ").(";
if (t_parameters.size() == 1)
{
paramstr += ", ";
}
} else {
paramstr += ", ";
}
}
ss << paramstr.substr(0, paramstr.size() - 2);
@@ -150,14 +327,14 @@ namespace chaiscript
}
static std::string format(const std::string &t_why, const File_Position &t_where, const std::string &t_fname,
const std::vector<Boxed_Value> &t_parameters, const chaiscript::detail::Dispatch_Engine &t_ss)
const std::vector<Boxed_Value> &t_parameters, bool t_dot_notation, const chaiscript::detail::Dispatch_Engine &t_ss)
{
std::stringstream ss;
ss << format_why(t_why);
ss << " ";
ss << format_parameters(t_parameters, t_ss);
ss << "With parameters: " << format_parameters(t_parameters, t_dot_notation, t_ss);
ss << " ";
ss << format_filename(t_fname);
@@ -169,14 +346,16 @@ namespace chaiscript
}
static std::string format(const std::string &t_why,
const std::vector<Boxed_Value> &t_parameters, const chaiscript::detail::Dispatch_Engine &t_ss)
const std::vector<Boxed_Value> &t_parameters,
bool t_dot_notation,
const chaiscript::detail::Dispatch_Engine &t_ss)
{
std::stringstream ss;
ss << format_why(t_why);
ss << " ";
ss << format_parameters(t_parameters, t_ss);
ss << "With parameters: " << format_parameters(t_parameters, t_dot_notation, t_ss);
ss << " ";
return ss.str();
@@ -222,6 +401,19 @@ namespace chaiscript
std::vector<AST_NodePtr> children;
AST_NodePtr annotation;
virtual std::string pretty_print() const
{
std::ostringstream oss;
oss << text;
for (unsigned int j = 0; j < this->children.size(); ++j) {
oss << this->children[j]->pretty_print();
}
return oss.str();
}
/**
* Prints the contents of an AST node, including its children, recursively
*/