Enable lazy compilation for non-trivial outer contexts.

src/scopes.cc

 // Copyright 2012 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
@@ skipping 619 matching lines @@
   // 2) Resolve variables.
   if (!ResolveVariablesRecursively(info, factory)) return false;
 
   // 3) Allocate variables.
   AllocateVariablesRecursively();
 
   return true;
 }
 
 
-bool Scope::AllowsLazyCompilation() const {
-  return !force_eager_compilation_ && HasTrivialOuterContext();
-}
-
-
 bool Scope::HasTrivialContext() const {
   // A function scope has a trivial context if it always is the global
   // context. We iteratively scan out the context chain to see if
   // there is anything that makes this scope non-trivial; otherwise we
   // return true.
   for (const Scope* scope = this; scope != NULL; scope = scope->outer_scope_) {
     if (scope->is_eval_scope()) return false;
     if (scope->scope_inside_with_) return false;
     if (scope->num_heap_slots_ > 0) return false;
   }
   return true;
 }
 
 
 bool Scope::HasTrivialOuterContext() const {
   Scope* outer = outer_scope_;
   if (outer == NULL) return true;
   // Note that the outer context may be trivial in general, but the current
   // scope may be inside a 'with' statement in which case the outer context
   // for this scope is not trivial.
   return !scope_inside_with_ && outer->HasTrivialContext();
 }
 
 
-bool Scope::AllowsLazyRecompilation() const {
+bool Scope::AllowsLazyCompilation() const {
   return !force_eager_compilation_ &&
          !TrivialDeclarationScopesBeforeWithScope();
 }
 
 
+bool Scope::AllowsLazyCompilationWithoutContext() const {
+  return !force_eager_compilation_ && HasTrivialOuterContext();
+}
+
+
 bool Scope::TrivialDeclarationScopesBeforeWithScope() const {
   Scope* outer = outer_scope_;
   if (outer == NULL) return false;
   outer = outer->DeclarationScope();
   while (outer != NULL) {
     if (outer->is_with_scope()) return true;
     if (outer->is_declaration_scope() && outer->num_heap_slots() > 0)
       return false;
     outer = outer->outer_scope_;
   }
@@ skipping 607 matching lines @@
 }
 
 
 int Scope::ContextLocalCount() const {
   if (num_heap_slots() == 0) return 0;
   return num_heap_slots() - Context::MIN_CONTEXT_SLOTS -
       (function_ != NULL && function_->proxy()->var()->IsContextSlot() ? 1 : 0);
 }
 
 } }  // namespace v8::internal