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1 // Copyright 2014 the V8 project authors. All rights reserved. | 1 // Copyright 2014 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/v8.h" | 5 #include "src/v8.h" |
6 | 6 |
7 #include "src/accessors.h" | 7 #include "src/accessors.h" |
8 #include "src/arguments.h" | 8 #include "src/arguments.h" |
9 #include "src/frames-inl.h" | 9 #include "src/frames-inl.h" |
10 #include "src/messages.h" | 10 #include "src/messages.h" |
11 #include "src/runtime/runtime-utils.h" | 11 #include "src/runtime/runtime-utils.h" |
12 #include "src/scopeinfo.h" | 12 #include "src/scopeinfo.h" |
13 #include "src/scopes.h" | 13 #include "src/scopes.h" |
14 | 14 |
15 namespace v8 { | 15 namespace v8 { |
16 namespace internal { | 16 namespace internal { |
17 | 17 |
18 static Object* ThrowRedeclarationError(Isolate* isolate, Handle<String> name) { | 18 static Object* ThrowRedeclarationError(Isolate* isolate, Handle<String> name) { |
19 HandleScope scope(isolate); | 19 HandleScope scope(isolate); |
20 Handle<Object> args[1] = {name}; | |
21 THROW_NEW_ERROR_RETURN_FAILURE( | 20 THROW_NEW_ERROR_RETURN_FAILURE( |
22 isolate, NewTypeError("var_redeclaration", HandleVector(args, 1))); | 21 isolate, NewTypeError(MessageTemplate::kVarRedeclaration, name)); |
23 } | 22 } |
24 | 23 |
25 | 24 |
26 RUNTIME_FUNCTION(Runtime_ThrowConstAssignError) { | 25 RUNTIME_FUNCTION(Runtime_ThrowConstAssignError) { |
27 HandleScope scope(isolate); | 26 HandleScope scope(isolate); |
28 THROW_NEW_ERROR_RETURN_FAILURE( | 27 THROW_NEW_ERROR_RETURN_FAILURE(isolate, |
29 isolate, | 28 NewTypeError(MessageTemplate::kConstAssign)); |
30 NewTypeError("const_assign", HandleVector<Object>(NULL, 0))); | |
31 } | 29 } |
32 | 30 |
33 | 31 |
34 // May throw a RedeclarationError. | 32 // May throw a RedeclarationError. |
35 static Object* DeclareGlobals(Isolate* isolate, Handle<GlobalObject> global, | 33 static Object* DeclareGlobals(Isolate* isolate, Handle<GlobalObject> global, |
36 Handle<String> name, Handle<Object> value, | 34 Handle<String> name, Handle<Object> value, |
37 PropertyAttributes attr, bool is_var, | 35 PropertyAttributes attr, bool is_var, |
38 bool is_const, bool is_function) { | 36 bool is_const, bool is_function) { |
39 Handle<ScriptContextTable> script_contexts( | 37 Handle<ScriptContextTable> script_contexts( |
40 global->native_context()->script_context_table()); | 38 global->native_context()->script_context_table()); |
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1012 // In case of JSProxy, an exception might have been thrown. | 1010 // In case of JSProxy, an exception might have been thrown. |
1013 if (isolate->has_pending_exception()) return isolate->heap()->exception(); | 1011 if (isolate->has_pending_exception()) return isolate->heap()->exception(); |
1014 | 1012 |
1015 // The property was found in a context slot. | 1013 // The property was found in a context slot. |
1016 if (index >= 0) { | 1014 if (index >= 0) { |
1017 if ((attributes & READ_ONLY) == 0) { | 1015 if ((attributes & READ_ONLY) == 0) { |
1018 Handle<Context>::cast(holder)->set(index, *value); | 1016 Handle<Context>::cast(holder)->set(index, *value); |
1019 } else if (is_strict(language_mode)) { | 1017 } else if (is_strict(language_mode)) { |
1020 // Setting read only property in strict mode. | 1018 // Setting read only property in strict mode. |
1021 THROW_NEW_ERROR_RETURN_FAILURE( | 1019 THROW_NEW_ERROR_RETURN_FAILURE( |
1022 isolate, | 1020 isolate, NewTypeError(MessageTemplate::kStrictCannotAssign, name)); |
1023 NewTypeError("strict_cannot_assign", HandleVector(&name, 1))); | |
1024 } | 1021 } |
1025 return *value; | 1022 return *value; |
1026 } | 1023 } |
1027 | 1024 |
1028 // Slow case: The property is not in a context slot. It is either in a | 1025 // Slow case: The property is not in a context slot. It is either in a |
1029 // context extension object, a property of the subject of a with, or a | 1026 // context extension object, a property of the subject of a with, or a |
1030 // property of the global object. | 1027 // property of the global object. |
1031 Handle<JSReceiver> object; | 1028 Handle<JSReceiver> object; |
1032 if (attributes != ABSENT) { | 1029 if (attributes != ABSENT) { |
1033 // The property exists on the holder. | 1030 // The property exists on the holder. |
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1104 } | 1101 } |
1105 | 1102 |
1106 // Handle special arguments properties. | 1103 // Handle special arguments properties. |
1107 if (String::Equals(isolate->factory()->length_string(), key)) { | 1104 if (String::Equals(isolate->factory()->length_string(), key)) { |
1108 return Smi::FromInt(n); | 1105 return Smi::FromInt(n); |
1109 } | 1106 } |
1110 if (String::Equals(isolate->factory()->callee_string(), key)) { | 1107 if (String::Equals(isolate->factory()->callee_string(), key)) { |
1111 JSFunction* function = frame->function(); | 1108 JSFunction* function = frame->function(); |
1112 if (is_strict(function->shared()->language_mode())) { | 1109 if (is_strict(function->shared()->language_mode())) { |
1113 THROW_NEW_ERROR_RETURN_FAILURE( | 1110 THROW_NEW_ERROR_RETURN_FAILURE( |
1114 isolate, NewTypeError("strict_arguments_callee", | 1111 isolate, NewTypeError(MessageTemplate::kStrictPoisonPill)); |
1115 HandleVector<Object>(NULL, 0))); | |
1116 } | 1112 } |
1117 return function; | 1113 return function; |
1118 } | 1114 } |
1119 | 1115 |
1120 // Lookup in the initial Object.prototype object. | 1116 // Lookup in the initial Object.prototype object. |
1121 Handle<Object> result; | 1117 Handle<Object> result; |
1122 ASSIGN_RETURN_FAILURE_ON_EXCEPTION( | 1118 ASSIGN_RETURN_FAILURE_ON_EXCEPTION( |
1123 isolate, result, | 1119 isolate, result, |
1124 Object::GetProperty(isolate->initial_object_prototype(), key)); | 1120 Object::GetProperty(isolate->initial_object_prototype(), key)); |
1125 return *result; | 1121 return *result; |
1126 } | 1122 } |
1127 | 1123 |
1128 | 1124 |
1129 RUNTIME_FUNCTION(Runtime_ArgumentsLength) { | 1125 RUNTIME_FUNCTION(Runtime_ArgumentsLength) { |
1130 SealHandleScope shs(isolate); | 1126 SealHandleScope shs(isolate); |
1131 DCHECK(args.length() == 0); | 1127 DCHECK(args.length() == 0); |
1132 JavaScriptFrameIterator it(isolate); | 1128 JavaScriptFrameIterator it(isolate); |
1133 JavaScriptFrame* frame = it.frame(); | 1129 JavaScriptFrame* frame = it.frame(); |
1134 return Smi::FromInt(frame->GetArgumentsLength()); | 1130 return Smi::FromInt(frame->GetArgumentsLength()); |
1135 } | 1131 } |
1136 | 1132 |
1137 | 1133 |
1138 RUNTIME_FUNCTION(Runtime_Arguments) { | 1134 RUNTIME_FUNCTION(Runtime_Arguments) { |
1139 SealHandleScope shs(isolate); | 1135 SealHandleScope shs(isolate); |
1140 return __RT_impl_Runtime_GetArgumentsProperty(args, isolate); | 1136 return __RT_impl_Runtime_GetArgumentsProperty(args, isolate); |
1141 } | 1137 } |
1142 } | 1138 } |
1143 } // namespace v8::internal | 1139 } // namespace v8::internal |
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