[destructuring] Re-index materialized literals in arrow function parameters.

src/ast-literal-reindexer.cc

Index: src/ast-literal-reindexer.cc
diff --git a/src/ast-literal-reindexer.cc b/src/ast-literal-reindexer.cc
new file mode 100644
index 0000000000000000000000000000000000000000..50729be25164abfe063b18bfca2534f2e7a444ce
--- /dev/null
+++ b/src/ast-literal-reindexer.cc
@@ -0,0 +1,311 @@
+// Copyright 2015 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/v8.h"
+
+#include "src/ast.h"
+#include "src/ast-literal-reindexer.h"
+#include "src/scopes.h"
+
+namespace v8 {
+namespace internal {
+
+
+void AstLiteralReindexer::VisitVariableDeclaration(VariableDeclaration* node) {
+  VisitVariableProxy(node->proxy());
+}
+
+
+void AstLiteralReindexer::VisitExportDeclaration(ExportDeclaration* node) {
+  VisitVariableProxy(node->proxy());
+}
+
+
+void AstLiteralReindexer::VisitEmptyStatement(EmptyStatement* node) {}
+
+
+void AstLiteralReindexer::VisitContinueStatement(ContinueStatement* node) {}
+
+
+void AstLiteralReindexer::VisitBreakStatement(BreakStatement* node) {}
+
+
+void AstLiteralReindexer::VisitDebuggerStatement(DebuggerStatement* node) {}
+
+
+void AstLiteralReindexer::VisitNativeFunctionLiteral(
+    NativeFunctionLiteral* node) {}
+
+
+void AstLiteralReindexer::VisitLiteral(Literal* node) {}
+
+
+void AstLiteralReindexer::VisitRegExpLiteral(RegExpLiteral* node) {
+  UpdateIndex(node);
+}
+
+
+void AstLiteralReindexer::VisitVariableProxy(VariableProxy* node) {}
+
+
+void AstLiteralReindexer::VisitThisFunction(ThisFunction* node) {}
+
+
+void AstLiteralReindexer::VisitSuperPropertyReference(
+    SuperPropertyReference* node) {
+  Visit(node->this_var());
+  Visit(node->home_object());
+}
+
+
+void AstLiteralReindexer::VisitSuperCallReference(SuperCallReference* node) {
+  Visit(node->this_var());
+  Visit(node->new_target_var());
+  Visit(node->this_function_var());
+}
+
+
+void AstLiteralReindexer::VisitImportDeclaration(ImportDeclaration* node) {
+  VisitVariableProxy(node->proxy());
+}
+
+
+void AstLiteralReindexer::VisitExpressionStatement(ExpressionStatement* node) {
+  Visit(node->expression());
+}
+
+
+void AstLiteralReindexer::VisitReturnStatement(ReturnStatement* node) {
+  Visit(node->expression());
+}
+
+
+void AstLiteralReindexer::VisitYield(Yield* node) {
+  Visit(node->generator_object());
+  Visit(node->expression());
+}
+
+
+void AstLiteralReindexer::VisitThrow(Throw* node) { Visit(node->exception()); }
+
+
+void AstLiteralReindexer::VisitUnaryOperation(UnaryOperation* node) {
+  Visit(node->expression());
+}
+
+
+void AstLiteralReindexer::VisitCountOperation(CountOperation* node) {
+  Visit(node->expression());
+}
+
+
+void AstLiteralReindexer::VisitBlock(Block* node) {
+  VisitStatements(node->statements());
+}
+
+
+void AstLiteralReindexer::VisitFunctionDeclaration(FunctionDeclaration* node) {
+  VisitVariableProxy(node->proxy());
+  VisitFunctionLiteral(node->fun());
+}
+
+
+void AstLiteralReindexer::VisitCallRuntime(CallRuntime* node) {
+  VisitArguments(node->arguments());
+}
+
+
+void AstLiteralReindexer::VisitWithStatement(WithStatement* node) {
+  Visit(node->expression());
+  Visit(node->statement());
+}
+
+
+void AstLiteralReindexer::VisitDoWhileStatement(DoWhileStatement* node) {
+  Visit(node->body());
+  Visit(node->cond());
+}
+
+
+void AstLiteralReindexer::VisitWhileStatement(WhileStatement* node) {
+  Visit(node->cond());
+  Visit(node->body());
+}
+
+
+void AstLiteralReindexer::VisitTryCatchStatement(TryCatchStatement* node) {
+  Visit(node->try_block());
+  Visit(node->catch_block());
+}
+
+
+void AstLiteralReindexer::VisitTryFinallyStatement(TryFinallyStatement* node) {
+  Visit(node->try_block());
+  Visit(node->finally_block());
+}
+
+
+void AstLiteralReindexer::VisitProperty(Property* node) {
+  Visit(node->key());
+  Visit(node->obj());
+}
+
+
+void AstLiteralReindexer::VisitAssignment(Assignment* node) {
+  Visit(node->target());
+  Visit(node->value());
+}
+
+
+void AstLiteralReindexer::VisitBinaryOperation(BinaryOperation* node) {
+  Visit(node->left());
+  Visit(node->right());
+}
+
+
+void AstLiteralReindexer::VisitCompareOperation(CompareOperation* node) {
+  Visit(node->left());
+  Visit(node->right());
+}
+
+
+void AstLiteralReindexer::VisitSpread(Spread* node) {
+  Visit(node->expression());
+}
+
+
+void AstLiteralReindexer::VisitForInStatement(ForInStatement* node) {
+  Visit(node->each());
+  Visit(node->enumerable());
+  Visit(node->body());
+}
+
+
+void AstLiteralReindexer::VisitForOfStatement(ForOfStatement* node) {
+  Visit(node->assign_iterator());
+  Visit(node->next_result());
+  Visit(node->result_done());
+  Visit(node->assign_each());
+  Visit(node->body());
+}
+
+
+void AstLiteralReindexer::VisitConditional(Conditional* node) {
+  Visit(node->condition());
+  Visit(node->then_expression());
+  Visit(node->else_expression());
+}
+
+
+void AstLiteralReindexer::VisitIfStatement(IfStatement* node) {
+  Visit(node->condition());
+  Visit(node->then_statement());
+  if (node->HasElseStatement()) {
+    Visit(node->else_statement());
+  }
+}
+
+
+void AstLiteralReindexer::VisitSwitchStatement(SwitchStatement* node) {
+  Visit(node->tag());
+  ZoneList<CaseClause*>* cases = node->cases();
+  for (int i = 0; i < cases->length(); i++) {
+    VisitCaseClause(cases->at(i));
+  }
+}
+
+
+void AstLiteralReindexer::VisitCaseClause(CaseClause* node) {
+  if (!node->is_default()) Visit(node->label());
+  VisitStatements(node->statements());
+}
+
+
+void AstLiteralReindexer::VisitForStatement(ForStatement* node) {
+  if (node->init() != NULL) Visit(node->init());
+  if (node->cond() != NULL) Visit(node->cond());
+  if (node->next() != NULL) Visit(node->next());
+  Visit(node->body());
+}
+
+
+void AstLiteralReindexer::VisitClassLiteral(ClassLiteral* node) {
+  if (node->extends()) Visit(node->extends());
+  if (node->constructor()) Visit(node->constructor());
+  if (node->class_variable_proxy()) {
+    VisitVariableProxy(node->class_variable_proxy());
+  }
+  for (int i = 0; i < node->properties()->length(); i++) {
+    VisitObjectLiteralProperty(node->properties()->at(i));
+  }
+}
+
+
+void AstLiteralReindexer::VisitObjectLiteral(ObjectLiteral* node) {
+  UpdateIndex(node);
+  for (int i = 0; i < node->properties()->length(); i++) {
+    VisitObjectLiteralProperty(node->properties()->at(i));
+  }
+}
+
+
+void AstLiteralReindexer::VisitObjectLiteralProperty(
+    ObjectLiteralProperty* node) {
+  Visit(node->key());
+  Visit(node->value());
+}
+
+
+void AstLiteralReindexer::VisitArrayLiteral(ArrayLiteral* node) {
+  UpdateIndex(node);
+  for (int i = 0; i < node->values()->length(); i++) {
+    Visit(node->values()->at(i));
+  }
+}
+
+
+void AstLiteralReindexer::VisitCall(Call* node) {
+  Visit(node->expression());
+  VisitArguments(node->arguments());
+}
+
+
+void AstLiteralReindexer::VisitCallNew(CallNew* node) {
+  Visit(node->expression());
+  VisitArguments(node->arguments());
+}
+
+
+void AstLiteralReindexer::VisitStatements(ZoneList<Statement*>* statements) {
+  if (statements == NULL) return;
+  for (int i = 0; i < statements->length(); i++) {
+    Visit(statements->at(i));
+  }
+}
+
+
+void AstLiteralReindexer::VisitDeclarations(
+    ZoneList<Declaration*>* declarations) {
+  for (int i = 0; i < declarations->length(); i++) {
+    Visit(declarations->at(i));
+  }
+}
+
+
+void AstLiteralReindexer::VisitArguments(ZoneList<Expression*>* arguments) {
+  for (int i = 0; i < arguments->length(); i++) {
+    Visit(arguments->at(i));
+  }
+}
+
+
+void AstLiteralReindexer::VisitFunctionLiteral(FunctionLiteral* node) {
+  // We don't recurse into the declarations or body of the function literal:
+}
+
+
+void AstLiteralReindexer::Reindex(Expression* pattern) {
+  pattern->Accept(this);
+}
+}
+}  // namespace v8::internal