[C++] Introduce Symbol
diff --git a/var.h b/var.h
index 85f3490..eac1f45 100644
--- a/var.h
+++ b/var.h
@@ -21,6 +21,7 @@
#include "ast.h"
#include "string_piece.h"
+#include "symtab.h"
#include "value.h"
using namespace std;
@@ -170,19 +171,19 @@
AssignOp op_;
};
-class Vars : public unordered_map<StringPiece, Var*> {
+class Vars : public unordered_map<Symbol, Var*> {
public:
~Vars();
- Var* Lookup(StringPiece name) const;
+ Var* Lookup(Symbol name) const;
- void Assign(StringPiece name, Var* v);
+ void Assign(Symbol name, Var* v);
};
class ScopedVar {
public:
// Does not take ownerships of arguments.
- ScopedVar(Vars* vars, StringPiece name, Var* var);
+ ScopedVar(Vars* vars, Symbol name, Var* var);
~ScopedVar();
private: