Do not embed array objects in unoptimized code.

R=verwaest@chromium.org

Review URL: https://codereview.chromium.org/685393002

Cr-Commit-Position: refs/heads/master@{#25019}
git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@25019 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ast-value-factory.cc

@@ -159,9 +159,6 @@ bool AstValue::BooleanValue() const {
       return DoubleToBoolean(number_);
     case SMI:
       return smi_ != 0;
-    case STRING_ARRAY:
-      UNREACHABLE();
-      break;
     case BOOLEAN:
       return bool_;
     case NULL_TYPE:
@@ -202,22 +199,6 @@ void AstValue::Internalize(Isolate* isolate) {
         value_ = isolate->factory()->false_value();
       }
       break;
-    case STRING_ARRAY: {
-      DCHECK(strings_ != NULL);
-      Factory* factory = isolate->factory();
-      int len = strings_->length();
-      Handle<FixedArray> elements = factory->NewFixedArray(len, TENURED);
-      for (int i = 0; i < len; i++) {
-        const AstRawString* string = (*strings_)[i];
-        Handle<Object> element = string->string();
-        // Strings are already internalized.
-        DCHECK(!element.is_null());
-        elements->set(i, *element);
-      }
-      value_ =
-          factory->NewJSArrayWithElements(elements, FAST_ELEMENTS, TENURED);
-      break;
-    }
     case NULL_TYPE:
       value_ = isolate->factory()->null_value();
       break;
@@ -350,17 +331,6 @@ const AstValue* AstValueFactory::NewBoolean(bool b) {
 }
 
 
-const AstValue* AstValueFactory::NewStringList(
-    ZoneList<const AstRawString*>* strings) {
-  AstValue* value = new (zone_) AstValue(strings);
-  if (isolate_) {
-    value->Internalize(isolate_);
-  }
-  values_.Add(value);
-  return value;
-}
-
-
 const AstValue* AstValueFactory::NewNull() {
   GENERATE_VALUE_GETTER(null_value_, AstValue::NULL_TYPE);
 }

src/ast-value-factory.h

@@ -194,7 +194,6 @@ class AstValue : public ZoneObject {
     NUMBER,
     SMI,
     BOOLEAN,
-    STRING_ARRAY,
     NULL_TYPE,
     UNDEFINED,
     THE_HOLE
@@ -213,10 +212,6 @@ class AstValue : public ZoneObject {
 
   explicit AstValue(bool b) : type_(BOOLEAN) { bool_ = b; }
 
-  explicit AstValue(ZoneList<const AstRawString*>* s) : type_(STRING_ARRAY) {
-    strings_ = s;
-  }
-
   explicit AstValue(Type t) : type_(t) {
     DCHECK(t == NULL_TYPE || t == UNDEFINED || t == THE_HOLE);
   }
@@ -239,33 +234,33 @@ class AstValue : public ZoneObject {
 
 
 // For generating constants.
-#define STRING_CONSTANTS(F)                           \
-  F(anonymous_function, "(anonymous function)")       \
-  F(arguments, "arguments")                           \
-  F(constructor, "constructor")                       \
-  F(done, "done")                                     \
-  F(dot, ".")                                         \
-  F(dot_for, ".for")                                  \
-  F(dot_generator, ".generator")                      \
-  F(dot_generator_object, ".generator_object")        \
-  F(dot_iterator, ".iterator")                        \
-  F(dot_module, ".module")                            \
-  F(dot_result, ".result")                            \
-  F(empty, "")                                        \
-  F(eval, "eval")                                     \
-  F(initialize_const_global, "initializeConstGlobal") \
-  F(initialize_var_global, "initializeVarGlobal")     \
-  F(make_reference_error, "MakeReferenceError")       \
-  F(make_syntax_error, "MakeSyntaxError")             \
-  F(make_type_error, "MakeTypeError")                 \
-  F(module, "module")                                 \
-  F(native, "native")                                 \
-  F(next, "next")                                     \
-  F(proto, "__proto__")                               \
-  F(prototype, "prototype")                           \
-  F(this, "this")                                     \
-  F(use_asm, "use asm")                               \
-  F(use_strict, "use strict")                         \
+#define STRING_CONSTANTS(F)                             \
+  F(anonymous_function, "(anonymous function)")         \
+  F(arguments, "arguments")                             \
+  F(constructor, "constructor")                         \
+  F(done, "done")                                       \
+  F(dot, ".")                                           \
+  F(dot_for, ".for")                                    \
+  F(dot_generator, ".generator")                        \
+  F(dot_generator_object, ".generator_object")          \
+  F(dot_iterator, ".iterator")                          \
+  F(dot_module, ".module")                              \
+  F(dot_result, ".result")                              \
+  F(empty, "")                                          \
+  F(eval, "eval")                                       \
+  F(initialize_const_global, "initializeConstGlobal")   \
+  F(initialize_var_global, "initializeVarGlobal")       \
+  F(make_reference_error, "MakeReferenceErrorEmbedded") \
+  F(make_syntax_error, "MakeSyntaxErrorEmbedded")       \
+  F(make_type_error, "MakeTypeErrorEmbedded")           \
+  F(module, "module")                                   \
+  F(native, "native")                                   \
+  F(next, "next")                                       \
+  F(proto, "__proto__")                                 \
+  F(prototype, "prototype")                             \
+  F(this, "this")                                       \
+  F(use_asm, "use asm")                                 \
+  F(use_strict, "use strict")                           \
   F(value, "value")
 
 #define OTHER_CONSTANTS(F) \

src/ast.h

@@ -3415,13 +3415,6 @@ class AstNodeFactory FINAL BASE_EMBEDDED {
     VISIT_AND_RETURN(Literal, lit)
   }
 
-  Literal* NewStringListLiteral(ZoneList<const AstRawString*>* strings,
-                                int pos) {
-    Literal* lit = new (zone_)
-        Literal(zone_, ast_value_factory_->NewStringList(strings), pos);
-    VISIT_AND_RETURN(Literal, lit)
-  }
-
   Literal* NewNullLiteral(int pos) {
     Literal* lit =
         new (zone_) Literal(zone_, ast_value_factory_->NewNull(), pos);

src/messages.js

@@ -367,6 +367,23 @@ function MakeError(type, args) {
   return MakeGenericError($Error, type, args);
 }
 
+
+// The embedded versions are called from unoptimized code, with embedded
+// arguments. Those arguments cannot be arrays, which are context-dependent.
+function MakeTypeErrorEmbedded(type, arg) {
+  return MakeGenericError($TypeError, type, [arg]);
+}
+
+
+function MakeSyntaxErrorEmbedded(type, arg) {
+  return MakeGenericError($SyntaxError, type, [arg]);
+}
+
+
+function MakeReferenceErrorEmbedded(type, arg) {
+  return MakeGenericError($ReferenceError, type, [arg]);
+}
+
 /**
  * Find a line number given a specific source position.
  * @param {number} position The source position.

src/parser.cc

@@ -519,7 +519,7 @@ Expression* ParserTraits::BuildUnaryExpression(
 Expression* ParserTraits::NewThrowReferenceError(const char* message, int pos) {
   return NewThrowError(
       parser_->ast_value_factory()->make_reference_error_string(), message,
-      NULL, pos);
+      parser_->ast_value_factory()->empty_string(), pos);
 }
 
 
@@ -541,17 +541,11 @@ Expression* ParserTraits::NewThrowError(
     const AstRawString* constructor, const char* message,
     const AstRawString* arg, int pos) {
   Zone* zone = parser_->zone();
-  int argc = arg != NULL ? 1 : 0;
   const AstRawString* type =
       parser_->ast_value_factory()->GetOneByteString(message);
-  ZoneList<const AstRawString*>* array =
-      new (zone) ZoneList<const AstRawString*>(argc, zone);
-  if (arg != NULL) {
-    array->Add(arg, zone);
-  }
   ZoneList<Expression*>* args = new (zone) ZoneList<Expression*>(2, zone);
   args->Add(parser_->factory()->NewStringLiteral(type, pos), zone);
-  args->Add(parser_->factory()->NewStringListLiteral(array, pos), zone);
+  args->Add(parser_->factory()->NewStringLiteral(arg, pos), zone);
   CallRuntime* call_constructor =
       parser_->factory()->NewCallRuntime(constructor, NULL, args, pos);
   return parser_->factory()->NewThrow(call_constructor, pos);

test/mjsunit/serialize-embedded-error.js

+// 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.
+
+// --serialize-toplevel --cache=code
+
+var caught = false;
+try {
+  parseInt() = 0;
+} catch(e) {
+  caught = true;
+}
+assertTrue(caught);