Experimental parser: merge r19949

src/scopes.h

 // 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 216 matching lines @@
   // ---------------------------------------------------------------------------
   // Scope-specific info.
 
   // Inform the scope that the corresponding code contains a with statement.
   void RecordWithStatement() { scope_contains_with_ = true; }
 
   // Inform the scope that the corresponding code contains an eval call.
   void RecordEvalCall() { if (!is_global_scope()) scope_calls_eval_ = true; }
 
   // Set the strict mode flag (unless disabled by a global flag).
-  void SetLanguageMode(LanguageMode language_mode) {
-    language_mode_ = language_mode;
-  }
+  void SetStrictMode(StrictMode strict_mode) { strict_mode_ = strict_mode; }
 
   // Position in the source where this scope begins and ends.
   //
   // * For the scope of a with statement
   //     with (obj) stmt
   //   start position: start position of first token of 'stmt'
   //   end position: end position of last token of 'stmt'
   // * For the scope of a block
   //     { stmts }
   //   start position: start position of '{'
@@ skipping 36 matching lines @@
   bool is_function_scope() const { return scope_type_ == FUNCTION_SCOPE; }
   bool is_module_scope() const { return scope_type_ == MODULE_SCOPE; }
   bool is_global_scope() const { return scope_type_ == GLOBAL_SCOPE; }
   bool is_catch_scope() const { return scope_type_ == CATCH_SCOPE; }
   bool is_block_scope() const { return scope_type_ == BLOCK_SCOPE; }
   bool is_with_scope() const { return scope_type_ == WITH_SCOPE; }
   bool is_declaration_scope() const {
     return is_eval_scope() || is_function_scope() ||
         is_module_scope() || is_global_scope();
   }
-  bool is_classic_mode() const {
-    return language_mode() == CLASSIC_MODE;
-  }
-  bool is_extended_mode() const {
-    return language_mode() == EXTENDED_MODE;
-  }
-  bool is_strict_or_extended_eval_scope() const {
-    return is_eval_scope() && !is_classic_mode();
+  bool is_strict_eval_scope() const {
+    return is_eval_scope() && strict_mode_ == STRICT;
   }
 
   // Information about which scopes calls eval.
   bool calls_eval() const { return scope_calls_eval_; }
-  bool calls_non_strict_eval() {
-    return scope_calls_eval_ && is_classic_mode();
+  bool calls_sloppy_eval() {
+    return scope_calls_eval_ && strict_mode_ == SLOPPY;
   }
-  bool outer_scope_calls_non_strict_eval() const {
-    return outer_scope_calls_non_strict_eval_;
+  bool outer_scope_calls_sloppy_eval() const {
+    return outer_scope_calls_sloppy_eval_;
   }
 
   // Is this scope inside a with statement.
   bool inside_with() const { return scope_inside_with_; }
   // Does this scope contain a with statement.
   bool contains_with() const { return scope_contains_with_; }
 
   // ---------------------------------------------------------------------------
   // Accessors.
 
   // The type of this scope.
   ScopeType scope_type() const { return scope_type_; }
 
   // The language mode of this scope.
-  LanguageMode language_mode() const { return language_mode_; }
+  StrictMode strict_mode() const { return strict_mode_; }
 
   // The variable corresponding the 'this' value.
   Variable* receiver() { return receiver_; }
 
   // The variable holding the function literal for named function
   // literals, or NULL.  Only valid for function scopes.
   VariableDeclaration* function() const {
     ASSERT(is_function_scope());
     return function_;
   }
@@ skipping 148 matching lines @@
 
   // Scope-specific information computed during parsing.
   //
   // This scope is inside a 'with' of some outer scope.
   bool scope_inside_with_;
   // This scope contains a 'with' statement.
   bool scope_contains_with_;
   // This scope or a nested catch scope or with scope contain an 'eval' call. At
   // the 'eval' call site this scope is the declaration scope.
   bool scope_calls_eval_;
-  // The language mode of this scope.
-  LanguageMode language_mode_;
+  // The strict mode of this scope.
+  StrictMode strict_mode_;
   // Source positions.
   int start_position_;
   int end_position_;
 
   // Computed via PropagateScopeInfo.
-  bool outer_scope_calls_non_strict_eval_;
+  bool outer_scope_calls_sloppy_eval_;
   bool inner_scope_calls_eval_;
   bool force_eager_compilation_;
   bool force_context_allocation_;
 
   // True if it doesn't need scope resolution (e.g., if the scope was
   // constructed based on a serialized scope info or a catch context).
   bool already_resolved_;
 
   // Computed as variables are declared.
   int num_var_or_const_;
@@ skipping 17 matching lines @@
   Variable* NonLocal(Handle<String> name, VariableMode mode);
 
   // Variable resolution.
   // Possible results of a recursive variable lookup telling if and how a
   // variable is bound. These are returned in the output parameter *binding_kind
   // of the LookupRecursive function.
   enum BindingKind {
     // The variable reference could be statically resolved to a variable binding
     // which is returned. There is no 'with' statement between the reference and
     // the binding and no scope between the reference scope (inclusive) and
-    // binding scope (exclusive) makes a non-strict 'eval' call.
+    // binding scope (exclusive) makes a sloppy 'eval' call.
     BOUND,
 
     // The variable reference could be statically resolved to a variable binding
     // which is returned. There is no 'with' statement between the reference and
     // the binding, but some scope between the reference scope (inclusive) and
-    // binding scope (exclusive) makes a non-strict 'eval' call, that might
+    // binding scope (exclusive) makes a sloppy 'eval' call, that might
     // possibly introduce variable bindings shadowing the found one. Thus the
     // found variable binding is just a guess.
     BOUND_EVAL_SHADOWED,
 
     // The variable reference could not be statically resolved to any binding
     // and thus should be considered referencing a global variable. NULL is
     // returned. The variable reference is not inside any 'with' statement and
     // no scope between the reference scope (inclusive) and global scope
-    // (exclusive) makes a non-strict 'eval' call.
+    // (exclusive) makes a sloppy 'eval' call.
     UNBOUND,
 
     // The variable reference could not be statically resolved to any binding
     // NULL is returned. The variable reference is not inside any 'with'
     // statement, but some scope between the reference scope (inclusive) and
-    // global scope (exclusive) makes a non-strict 'eval' call, that might
+    // global scope (exclusive) makes a sloppy 'eval' call, that might
     // possibly introduce a variable binding. Thus the reference should be
     // considered referencing a global variable unless it is shadowed by an
     // 'eval' introduced binding.
     UNBOUND_EVAL_SHADOWED,
 
     // The variable could not be statically resolved and needs to be looked up
     // dynamically. NULL is returned. There are two possible reasons:
     // * A 'with' statement has been encountered and there is no variable
     //   binding for the name between the variable reference and the 'with'.
     //   The variable potentially references a property of the 'with' object.
@@ skipping 11 matching lines @@
                             AstNodeFactory<AstNullVisitor>* factory);
   MUST_USE_RESULT
   bool ResolveVariable(CompilationInfo* info,
                        VariableProxy* proxy,
                        AstNodeFactory<AstNullVisitor>* factory);
   MUST_USE_RESULT
   bool ResolveVariablesRecursively(CompilationInfo* info,
                                    AstNodeFactory<AstNullVisitor>* factory);
 
   // Scope analysis.
-  bool PropagateScopeInfo(bool outer_scope_calls_non_strict_eval);
+  bool PropagateScopeInfo(bool outer_scope_calls_sloppy_eval);
   bool HasTrivialContext() const;
 
   // Predicates.
   bool MustAllocate(Variable* var);
   bool MustAllocateInContext(Variable* var);
   bool HasArgumentsParameter();
 
   // Variable allocation.
   void AllocateStackSlot(Variable* var);
   void AllocateHeapSlot(Variable* var);
@@ skipping 33 matching lines @@
   void SetDefaults(ScopeType type,
                    Scope* outer_scope,
                    Handle<ScopeInfo> scope_info);
 
   Zone* zone_;
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_SCOPES_H_