Added nop operator to prevent incorrect aliasing

2009-05-29 16:04:31 +00:00
parent 14be974fb0
commit 22654b5754
3 changed files with 48 additions and 11 deletions
--- a/langkit/main.cpp
+++ b/langkit/main.cpp
@@ -66,7 +66,6 @@ void parse(std::vector<TokenPtr> &tokens) {

    //Example: "def add(x,y)"

-
    Rule params;
    Rule block(TokenType::Scoped_Block);
    Rule rule(TokenType::Function_Def);
@@ -78,12 +77,13 @@ void parse(std::vector<TokenPtr> &tokens) {
    block = Ign(Str("{")) << ~return_statement << Ign(Str("}"));
    return_statement = Ign(Str("return")) << Id(TokenType::Identifier) << Str("+") << Id(TokenType::Identifier);

-
    /*
-    Rule rule, rule2;
-    rule = rule2;
+    Rule rule;
+    Rule rule2;
+    rule = Nop(rule2);
    rule2 = Str("Bob");
    */
+
    /*
    Rule rule(3);
    rule = Ign(Str("Bob")) << Str("Fred");