Parse arrow functions at proper precedence level

src/prettyprinter.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/prettyprinter.h"
 
 #include <stdarg.h>
 
 #include "src/ast-value-factory.h"
 #include "src/base/platform/platform.h"
@@ skipping 342 matching lines @@
 }
 
 
 void CallPrinter::VisitSpread(Spread* node) {
   Print("(...");
   Find(node->expression(), true);
   Print(")");
 }
 
 
+void CallPrinter::VisitEmptyParentheses(EmptyParentheses* node) {
+  UNREACHABLE();
+}
+
+
 void CallPrinter::VisitThisFunction(ThisFunction* node) {}
 
 
 void CallPrinter::VisitSuperPropertyReference(SuperPropertyReference* node) {}
 
 
 void CallPrinter::VisitSuperCallReference(SuperCallReference* node) {}
 
 
 void CallPrinter::FindStatements(ZoneList<Statement*>* statements) {
@@ skipping 465 matching lines @@
 }
 
 
 void PrettyPrinter::VisitSpread(Spread* node) {
   Print("(...");
   Visit(node->expression());
   Print(")");
 }
 
 
+void PrettyPrinter::VisitEmptyParentheses(EmptyParentheses* node) {
+  Print("<empty-parentheses>");
+}
+
+
 void PrettyPrinter::VisitThisFunction(ThisFunction* node) {
   Print("<this-function>");
 }
 
 
 void PrettyPrinter::VisitSuperPropertyReference(SuperPropertyReference* node) {
   Print("<super-property-reference>");
 }
 
 
@@ skipping 700 matching lines @@
   Visit(node->right());
 }
 
 
 void AstPrinter::VisitSpread(Spread* node) {
   IndentedScope indent(this, "...");
   Visit(node->expression());
 }
 
 
+void AstPrinter::VisitEmptyParentheses(EmptyParentheses* node) {
+  IndentedScope indent(this, "()");
+}
+
+
 void AstPrinter::VisitThisFunction(ThisFunction* node) {
   IndentedScope indent(this, "THIS-FUNCTION");
 }
 
 
 void AstPrinter::VisitSuperPropertyReference(SuperPropertyReference* node) {
   IndentedScope indent(this, "SUPER-PROPERTY-REFERENCE");
 }
 
 
 void AstPrinter::VisitSuperCallReference(SuperCallReference* node) {
   IndentedScope indent(this, "SUPER-CALL-REFERENCE");
 }
 
 
 #endif  // DEBUG
 
 }  // namespace internal
 }  // namespace v8