Class syntax parsing

src/full-codegen.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/codegen.h"
 #include "src/compiler.h"
 #include "src/debug.h"
 #include "src/full-codegen.h"
@@ skipping 14 matching lines @@
 
 void BreakableStatementChecker::Check(Expression* expr) {
   Visit(expr);
 }
 
 
 void BreakableStatementChecker::VisitVariableDeclaration(
     VariableDeclaration* decl) {
 }
 
+
 void BreakableStatementChecker::VisitFunctionDeclaration(
     FunctionDeclaration* decl) {
 }
 
+
 void BreakableStatementChecker::VisitModuleDeclaration(
     ModuleDeclaration* decl) {
 }
 
+
 void BreakableStatementChecker::VisitImportDeclaration(
     ImportDeclaration* decl) {
 }
 
+
 void BreakableStatementChecker::VisitExportDeclaration(
     ExportDeclaration* decl) {
 }
 
 
 void BreakableStatementChecker::VisitModuleLiteral(ModuleLiteral* module) {
 }
 
 
 void BreakableStatementChecker::VisitModuleVariable(ModuleVariable* module) {
@@ skipping 113 matching lines @@
 
 
 void BreakableStatementChecker::VisitCaseClause(CaseClause* clause) {
 }
 
 
 void BreakableStatementChecker::VisitFunctionLiteral(FunctionLiteral* expr) {
 }
 
 
+void BreakableStatementChecker::VisitClassLiteral(ClassLiteral* expr) {
+  if (expr->extends() != NULL) {
+    Visit(expr->extends());
+  }
+}
+
+
 void BreakableStatementChecker::VisitNativeFunctionLiteral(
     NativeFunctionLiteral* expr) {
 }
 
 
 void BreakableStatementChecker::VisitConditional(Conditional* expr) {
 }
 
 
 void BreakableStatementChecker::VisitVariableProxy(VariableProxy* expr) {
@@ skipping 1334 matching lines @@
   Handle<SharedFunctionInfo> function_info =
       Compiler::BuildFunctionInfo(expr, script(), info_);
   if (function_info.is_null()) {
     SetStackOverflow();
     return;
   }
   EmitNewClosure(function_info, expr->pretenure());
 }
 
 
+void FullCodeGenerator::VisitClassLiteral(ClassLiteral* expr) {
+  // TODO(arv): Implement
+  Comment cmnt(masm_, "[ ClassLiteral");
+  if (expr->extends() != NULL) {
+    VisitForEffect(expr->extends());
+  }
+  context()->Plug(isolate()->factory()->undefined_value());

[arv (Not doing code reviews), 2014/09/15 15:12:32]

Another option would be to throw `new Error('Not yet implemented')`. Would that
be better?

[rossberg, 2014/09/16 15:25:40]

No, I actually like this better. It allows you to already write JS tests, e.g.
to test parsing.

+}
+
+
 void FullCodeGenerator::VisitNativeFunctionLiteral(
     NativeFunctionLiteral* expr) {
   Comment cmnt(masm_, "[ NativeFunctionLiteral");
 
   // Compute the function template for the native function.
   Handle<String> name = expr->name();
   v8::Handle<v8::FunctionTemplate> fun_template =
       expr->extension()->GetNativeFunctionTemplate(
           reinterpret_cast<v8::Isolate*>(isolate()), v8::Utils::ToLocal(name));
   DCHECK(!fun_template.IsEmpty());
@@ skipping 146 matching lines @@
   }
   return true;
 }
 #endif  // DEBUG
 
 
 #undef __
 
 
 } }  // namespace v8::internal