Remove --experimental-classes flag and related dead code.

src/ast-this-access-visitor.cc

-// Copyright 2014 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.
-
-#include "src/ast-this-access-visitor.h"
-#include "src/parser.h"
-
-namespace v8 {
-namespace internal {
-
-typedef class AstThisAccessVisitor ATAV;  // for code shortitude.
-
-ATAV::AstThisAccessVisitor(Isolate* isolate, Zone* zone) : uses_this_(false) {
-  InitializeAstVisitor(isolate, zone);
-}
-
-
-void ATAV::VisitVariableProxy(VariableProxy* proxy) {
-  if (proxy->is_this()) {
-    uses_this_ = true;
-  }
-}
-
-
-void ATAV::VisitSuperReference(SuperReference* leaf) {
-  // disallow super.method() and super(...).
-  uses_this_ = true;
-}
-
-
-void ATAV::VisitCallNew(CallNew* e) {
-  // new super(..) does not use 'this'.
-  if (!e->expression()->IsSuperReference()) {
-    Visit(e->expression());
-  }
-  VisitExpressions(e->arguments());
-}
-
-
-// ---------------------------------------------------------------------------
-// -- Leaf nodes -------------------------------------------------------------
-// ---------------------------------------------------------------------------
-
-void ATAV::VisitVariableDeclaration(VariableDeclaration* leaf) {}
-void ATAV::VisitFunctionDeclaration(FunctionDeclaration* leaf) {}
-void ATAV::VisitModuleDeclaration(ModuleDeclaration* leaf) {}
-void ATAV::VisitImportDeclaration(ImportDeclaration* leaf) {}
-void ATAV::VisitExportDeclaration(ExportDeclaration* leaf) {}
-void ATAV::VisitModuleVariable(ModuleVariable* leaf) {}
-void ATAV::VisitModulePath(ModulePath* leaf) {}
-void ATAV::VisitModuleUrl(ModuleUrl* leaf) {}
-void ATAV::VisitEmptyStatement(EmptyStatement* leaf) {}
-void ATAV::VisitContinueStatement(ContinueStatement* leaf) {}
-void ATAV::VisitBreakStatement(BreakStatement* leaf) {}
-void ATAV::VisitDebuggerStatement(DebuggerStatement* leaf) {}
-void ATAV::VisitFunctionLiteral(FunctionLiteral* leaf) {}
-void ATAV::VisitNativeFunctionLiteral(NativeFunctionLiteral* leaf) {}
-void ATAV::VisitLiteral(Literal* leaf) {}
-void ATAV::VisitRegExpLiteral(RegExpLiteral* leaf) {}
-void ATAV::VisitThisFunction(ThisFunction* leaf) {}
-
-// ---------------------------------------------------------------------------
-// -- Pass-through nodes------------------------------------------------------
-// ---------------------------------------------------------------------------
-void ATAV::VisitModuleLiteral(ModuleLiteral* e) { Visit(e->body()); }
-
-
-void ATAV::VisitBlock(Block* stmt) { VisitStatements(stmt->statements()); }
-
-
-void ATAV::VisitExpressionStatement(ExpressionStatement* stmt) {
-  Visit(stmt->expression());
-}
-
-
-void ATAV::VisitIfStatement(IfStatement* stmt) {
-  Visit(stmt->condition());
-  Visit(stmt->then_statement());
-  Visit(stmt->else_statement());
-}
-
-
-void ATAV::VisitReturnStatement(ReturnStatement* stmt) {
-  Visit(stmt->expression());
-}
-
-
-void ATAV::VisitWithStatement(WithStatement* stmt) {
-  Visit(stmt->expression());
-  Visit(stmt->statement());
-}
-
-
-void ATAV::VisitSwitchStatement(SwitchStatement* stmt) {
-  Visit(stmt->tag());
-  ZoneList<CaseClause*>* clauses = stmt->cases();
-  for (int i = 0; i < clauses->length(); i++) {
-    Visit(clauses->at(i));
-  }
-}
-
-
-void ATAV::VisitTryFinallyStatement(TryFinallyStatement* stmt) {
-  Visit(stmt->try_block());
-  Visit(stmt->finally_block());
-}
-
-
-void ATAV::VisitClassLiteral(ClassLiteral* e) {
-  VisitIfNotNull(e->extends());
-  Visit(e->constructor());
-  ZoneList<ObjectLiteralProperty*>* properties = e->properties();
-  for (int i = 0; i < properties->length(); i++) {
-    Visit(properties->at(i)->value());
-  }
-}
-
-
-void ATAV::VisitConditional(Conditional* e) {
-  Visit(e->condition());
-  Visit(e->then_expression());
-  Visit(e->else_expression());
-}
-
-
-void ATAV::VisitObjectLiteral(ObjectLiteral* e) {
-  ZoneList<ObjectLiteralProperty*>* properties = e->properties();
-  for (int i = 0; i < properties->length(); i++) {
-    Visit(properties->at(i)->value());
-  }
-}
-
-
-void ATAV::VisitArrayLiteral(ArrayLiteral* e) { VisitExpressions(e->values()); }
-
-
-void ATAV::VisitYield(Yield* stmt) {
-  Visit(stmt->generator_object());
-  Visit(stmt->expression());
-}
-
-
-void ATAV::VisitThrow(Throw* stmt) { Visit(stmt->exception()); }
-
-
-void ATAV::VisitProperty(Property* e) {
-  Visit(e->obj());
-  Visit(e->key());
-}
-
-
-void ATAV::VisitCall(Call* e) {
-  Visit(e->expression());
-  VisitExpressions(e->arguments());
-}
-
-
-void ATAV::VisitCallRuntime(CallRuntime* e) {
-  VisitExpressions(e->arguments());
-}
-
-
-void ATAV::VisitUnaryOperation(UnaryOperation* e) { Visit(e->expression()); }
-
-
-void ATAV::VisitBinaryOperation(BinaryOperation* e) {
-  Visit(e->left());
-  Visit(e->right());
-}
-
-
-void ATAV::VisitCompareOperation(CompareOperation* e) {
-  Visit(e->left());
-  Visit(e->right());
-}
-
-
-void ATAV::VisitCaseClause(CaseClause* cc) {
-  if (!cc->is_default()) Visit(cc->label());
-  VisitStatements(cc->statements());
-}
-
-
-void ATAV::VisitModuleStatement(ModuleStatement* stmt) { Visit(stmt->body()); }
-
-
-void ATAV::VisitTryCatchStatement(TryCatchStatement* stmt) {
-  Visit(stmt->try_block());
-  Visit(stmt->catch_block());
-}
-
-
-void ATAV::VisitDoWhileStatement(DoWhileStatement* loop) {
-  Visit(loop->body());
-  Visit(loop->cond());
-}
-
-
-void ATAV::VisitWhileStatement(WhileStatement* loop) {
-  Visit(loop->cond());
-  Visit(loop->body());
-}
-
-
-void ATAV::VisitForStatement(ForStatement* loop) {
-  VisitIfNotNull(loop->init());
-  VisitIfNotNull(loop->cond());
-  Visit(loop->body());
-  VisitIfNotNull(loop->next());
-}
-
-
-void ATAV::VisitForInStatement(ForInStatement* loop) {
-  Visit(loop->each());
-  Visit(loop->subject());
-  Visit(loop->body());
-}
-
-
-void ATAV::VisitForOfStatement(ForOfStatement* loop) {
-  Visit(loop->each());
-  Visit(loop->subject());
-  Visit(loop->body());
-}
-
-
-void ATAV::VisitAssignment(Assignment* stmt) {
-  Expression* l = stmt->target();
-  Visit(l);
-  Visit(stmt->value());
-}
-
-
-void ATAV::VisitCountOperation(CountOperation* e) {
-  Expression* l = e->expression();
-  Visit(l);
-}
-}
-}  // namespace v8::internal