More refactoring of class Compiler's interface.

src/scopes.h

-// Copyright 2006-2008 the V8 project authors. All rights reserved.
+// Copyright 2010 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
@@ skipping 15 matching lines @@
 
 #ifndef V8_SCOPES_H_
 #define V8_SCOPES_H_
 
 #include "ast.h"
 #include "hashmap.h"
 
 namespace v8 {
 namespace internal {
 
+class CompilationInfo;
+
+
 // A hash map to support fast variable declaration and lookup.
 class VariableMap: public HashMap {
  public:
   VariableMap();
 
   // Dummy constructor.  This constructor doesn't set up the map
   // properly so don't use it unless you have a good reason.
   explicit VariableMap(bool gotta_love_static_overloading);
 
   virtual ~VariableMap();
@@ skipping 42 matching lines @@
   enum Type {
     EVAL_SCOPE,     // the top-level scope for an 'eval' source
     FUNCTION_SCOPE,  // the top-level scope for a function
     GLOBAL_SCOPE    // the top-level scope for a program or a top-level eval
   };
 
   Scope(Scope* outer_scope, Type type);
 
   virtual ~Scope() { }
 
+  // Compute top scope and allocate variables. For lazy compilation the top
+  // scope only contains the single lazily compiled function, so this
+  // doesn't re-allocate variables repeatedly.
+  static bool Analyze(CompilationInfo* info);
+
   // The scope name is only used for printing/debugging.
   void SetScopeName(Handle<String> scope_name)  { scope_name_ = scope_name; }
 
   virtual void Initialize(bool inside_with);
 
   // Called just before leaving a scope.
   virtual void Leave() {
     // No cleanup or fixup necessary.
   }
 
@@ skipping 318 matching lines @@
   int nesting_level_;
   // Nesting level of outermost scope that is contained in a with statement,
   // or kNotInsideWith if there are no with's around the current scope.
   int inside_with_level_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCOPES_H_