[parser] Hide expression classifiers in parser implementation

src/parsing/parser.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_PARSING_PARSER_H_
 #define V8_PARSING_PARSER_H_
 
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
 #include "src/parsing/parser-base.h"
@@ skipping 128 matching lines @@
 
 template <>
 struct ParserTypes<Parser> {
   typedef ParserBase<Parser> Base;
   typedef Parser Impl;
 
   typedef Variable GeneratorVariable;
 
   typedef v8::internal::AstProperties AstProperties;
 
-  typedef v8::internal::ExpressionClassifier<ParserTypes<Parser>>
-      ExpressionClassifier;
-
   // Return types for traversing functions.
   typedef const AstRawString* Identifier;
   typedef v8::internal::Expression* Expression;
   typedef Yield* YieldExpression;
   typedef v8::internal::FunctionLiteral* FunctionLiteral;
   typedef v8::internal::ClassLiteral* ClassLiteral;
   typedef v8::internal::Literal* Literal;
   typedef ObjectLiteral::Property* ObjectLiteralProperty;
   typedef ZoneList<v8::internal::Expression*>* ExpressionList;
   typedef ZoneList<ObjectLiteral::Property*>* PropertyList;
@@ skipping 308 matching lines @@
                                       Expression* iterable, Statement* body,
                                       bool finalize,
                                       int next_result_pos = kNoSourcePosition);
   Statement* DesugarLexicalBindingsInForStatement(
       Scope* inner_scope, VariableMode mode,
       ZoneList<const AstRawString*>* names, ForStatement* loop, Statement* init,
       Expression* cond, Statement* next, Statement* body, bool* ok);
 
   void DesugarAsyncFunctionBody(const AstRawString* function_name, Scope* scope,
                                 ZoneList<Statement*>* body,
-                                ExpressionClassifier* classifier,
                                 FunctionKind kind, FunctionBodyType type,
                                 bool accept_IN, int pos, bool* ok);
 
   void RewriteDoExpression(Expression* expr, bool* ok);
 
   FunctionLiteral* ParseFunctionLiteral(
       const AstRawString* name, Scanner::Location function_name_location,
       FunctionNameValidity function_name_validity, FunctionKind kind,
       int function_token_position, FunctionLiteral::FunctionType type,
       LanguageMode language_mode, bool* ok);
 
-  Expression* ParseClassLiteral(ExpressionClassifier* classifier,
-                                const AstRawString* name,
+  Expression* ParseClassLiteral(const AstRawString* name,
                                 Scanner::Location class_name_location,
                                 bool name_is_strict_reserved, int pos,
                                 bool* ok);
 
   // Magical syntax support.
   Expression* ParseV8Intrinsic(bool* ok);
 
   // Get odd-ball literals.
   Literal* GetLiteralUndefined(int position);
 
@@ skipping 101 matching lines @@
   TemplateLiteralState OpenTemplateLiteral(int pos);
   void AddTemplateSpan(TemplateLiteralState* state, bool tail);
   void AddTemplateExpression(TemplateLiteralState* state,
                              Expression* expression);
   Expression* CloseTemplateLiteral(TemplateLiteralState* state, int start,
                                    Expression* tag);
   uint32_t ComputeTemplateLiteralHash(const TemplateLiteral* lit);
 
   void ParseAsyncArrowSingleExpressionBody(ZoneList<Statement*>* body,
                                            bool accept_IN,
-                                           ExpressionClassifier* classifier,
                                            int pos, bool* ok) {
-    DesugarAsyncFunctionBody(ast_value_factory()->empty_string(), scope(), body,
-                             classifier, kAsyncArrowFunction,
-                             FunctionBodyType::kSingleExpression, accept_IN,
-                             pos, ok);
+    DesugarAsyncFunctionBody(
+        ast_value_factory()->empty_string(), scope(), body, kAsyncArrowFunction,
+        FunctionBodyType::kSingleExpression, accept_IN, pos, ok);
   }
 
   ZoneList<Expression*>* PrepareSpreadArguments(ZoneList<Expression*>* list);
   Expression* SpreadCall(Expression* function, ZoneList<Expression*>* args,
                          int pos);
   Expression* SpreadCallNew(Expression* function, ZoneList<Expression*>* args,
                             int pos);
 
   void SetLanguageMode(Scope* scope, LanguageMode mode);
   void RaiseLanguageMode(LanguageMode mode);
 
   V8_INLINE void MarkCollectedTailCallExpressions();
   V8_INLINE void MarkTailPosition(Expression* expression);
 
   // Rewrite all DestructuringAssignments in the current FunctionState.
   V8_INLINE void RewriteDestructuringAssignments();
 
   V8_INLINE Expression* RewriteExponentiation(Expression* left,
                                               Expression* right, int pos);
   V8_INLINE Expression* RewriteAssignExponentiation(Expression* left,
                                                     Expression* right, int pos);
 
   friend class NonPatternRewriter;
   V8_INLINE Expression* RewriteSpreads(ArrayLiteral* lit);
 
   // Rewrite expressions that are not used as patterns
-  V8_INLINE void RewriteNonPattern(ExpressionClassifier* classifier, bool* ok);
+  V8_INLINE void RewriteNonPattern(bool* ok);
 
   V8_INLINE void QueueDestructuringAssignmentForRewriting(
       Expression* assignment);
   V8_INLINE void QueueNonPatternForRewriting(Expression* expr, bool* ok);
 
   friend class InitializerRewriter;
   void RewriteParameterInitializer(Expression* expr, Scope* scope);
 
   Expression* BuildCreateJSGeneratorObject(int pos, FunctionKind kind);
   Expression* BuildResolvePromise(Expression* value, int pos);
@@ skipping 317 matching lines @@
                                    ? pattern->AsVariableProxy()->raw_name()
                                    : ast_value_factory()->empty_string();
     parameters->params.Add(
         ParserFormalParameters::Parameter(name, pattern, initializer,
                                           initializer_end_position, is_rest),
         parameters->scope->zone());
   }
 
   V8_INLINE void DeclareFormalParameter(
       DeclarationScope* scope,
-      const ParserFormalParameters::Parameter& parameter,
-      ExpressionClassifier* classifier) {
+      const ParserFormalParameters::Parameter& parameter) {
     bool is_duplicate = false;
-    bool is_simple = classifier->is_simple_parameter_list();
+    bool is_simple = classifier()->is_simple_parameter_list();
     auto name = is_simple || parameter.is_rest
                     ? parameter.name
                     : ast_value_factory()->empty_string();
     auto mode = is_simple || parameter.is_rest ? VAR : TEMPORARY;
     if (!is_simple) scope->SetHasNonSimpleParameters();
     bool is_optional = parameter.initializer != nullptr;
     Variable* var =
         scope->DeclareParameter(name, mode, is_optional, parameter.is_rest,
                                 &is_duplicate, ast_value_factory());
     if (is_duplicate) {
-      classifier->RecordDuplicateFormalParameterError(scanner()->location());
+      classifier()->RecordDuplicateFormalParameterError(scanner()->location());
     }
     if (is_sloppy(scope->language_mode())) {
       // TODO(sigurds) Mark every parameter as maybe assigned. This is a
       // conservative approximation necessary to account for parameters
       // that are assigned via the arguments array.
       var->set_maybe_assigned();
     }
   }
 
   void ParseArrowFunctionFormalParameterList(
@@ skipping 77 matching lines @@
   static const int kLiteralTypeSlot = 0;
   static const int kElementsSlot = 1;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(CompileTimeValue);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_H_