WIP: Parser: delay string internalization.

src/compiler.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_COMPILER_H_
 #define V8_COMPILER_H_
 
 #include "allocation.h"
 #include "ast.h"
 #include "zone.h"
 
 namespace v8 {
 namespace internal {
 
 class ScriptData;
 class HydrogenCodeStub;
+class ParserSymbolTable;
 
 // ParseRestriction is used to restrict the set of valid statements in a
 // unit of compilation.  Restriction violations cause a syntax error.
 enum ParseRestriction {
   NO_PARSE_RESTRICTION,         // All expressions are allowed.
   ONLY_SINGLE_FUNCTION_LITERAL  // Only a single FunctionLiteral expression.
 };
 
 enum CachedDataMode {
   NO_CACHED_DATA,
@@ skipping 272 matching lines @@
     ASSERT(!OptimizingCompilerThread::IsOptimizerThread(isolate()));
     return abort_due_to_dependency_;
   }
 
   bool HasSameOsrEntry(Handle<JSFunction> function, BailoutId osr_ast_id) {
     return osr_ast_id_ == osr_ast_id && function.is_identical_to(closure_);
   }
 
   int optimization_id() const { return optimization_id_; }
 
+  ParserSymbolTable* symbol_table() const { return symbol_table_; }
+  void SetSymbolTable(ParserSymbolTable* symbol_table) {
+    symbol_table_ = symbol_table;
+  }
+
  protected:
   CompilationInfo(Handle<Script> script,
                   Zone* zone);
   CompilationInfo(Handle<SharedFunctionInfo> shared_info,
                   Zone* zone);
   CompilationInfo(HydrogenCodeStub* stub,
                   Isolate* isolate,
                   Zone* zone);
 
  private:
@@ skipping 121 matching lines @@
 
   // Number of parameters used for compilation of stubs that require arguments.
   int parameter_count_;
 
   bool this_has_uses_;
 
   Handle<Foreign> object_wrapper_;
 
   int optimization_id_;
 
+  ParserSymbolTable* symbol_table_;
+
   DISALLOW_COPY_AND_ASSIGN(CompilationInfo);
 };
 
 
 // Exactly like a CompilationInfo, except also creates and enters a
 // Zone on construction and deallocates it on exit.
 class CompilationInfoWithZone: public CompilationInfo {
  public:
   explicit CompilationInfoWithZone(Handle<Script> script)
       : CompilationInfo(script, &zone_),
@@ skipping 216 matching lines @@
   unsigned info_zone_start_allocation_size_;
   ElapsedTimer timer_;
 
   DISALLOW_COPY_AND_ASSIGN(CompilationPhase);
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_COMPILER_H_