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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/runtime/runtime-utils.h" | 5 #include "src/runtime/runtime-utils.h" |
6 | 6 |
7 #include <memory> | 7 #include <memory> |
8 | 8 |
9 #include "src/arguments.h" | 9 #include "src/arguments.h" |
10 #include "src/ast/prettyprinter.h" | 10 #include "src/ast/prettyprinter.h" |
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110 Handle<Object> arg1 = (args.length() > 2) ? args.at<Object>(2) : undefined; | 110 Handle<Object> arg1 = (args.length() > 2) ? args.at<Object>(2) : undefined; |
111 Handle<Object> arg2 = (args.length() > 3) ? args.at<Object>(3) : undefined; | 111 Handle<Object> arg2 = (args.length() > 3) ? args.at<Object>(3) : undefined; |
112 | 112 |
113 MessageTemplate::Template message_id = | 113 MessageTemplate::Template message_id = |
114 static_cast<MessageTemplate::Template>(message_id_smi); | 114 static_cast<MessageTemplate::Template>(message_id_smi); |
115 | 115 |
116 THROW_NEW_ERROR_RETURN_FAILURE(isolate, | 116 THROW_NEW_ERROR_RETURN_FAILURE(isolate, |
117 NewTypeError(message_id, arg0, arg1, arg2)); | 117 NewTypeError(message_id, arg0, arg1, arg2)); |
118 } | 118 } |
119 | 119 |
120 RUNTIME_FUNCTION(Runtime_ThrowWasmError) { | |
121 HandleScope scope(isolate); | |
122 DCHECK_EQ(2, args.length()); | |
123 CONVERT_SMI_ARG_CHECKED(message_id, 0); | |
124 CONVERT_SMI_ARG_CHECKED(byte_offset, 1); | |
125 Handle<Object> error_obj = isolate->factory()->NewWasmRuntimeError( | |
126 static_cast<MessageTemplate::Template>(message_id)); | |
127 | |
128 // For wasm traps, the byte offset (a.k.a source position) can not be | |
129 // determined from relocation info, since the explicit checks for traps | |
130 // converge in one singe block which calls this runtime function. | |
131 // We hence pass the byte offset explicitely, and patch it into the top-most | |
132 // frame (a wasm frame) on the collected stack trace. | |
133 // TODO(wasm): This implementation is temporary, see bug #5007: | |
134 // https://bugs.chromium.org/p/v8/issues/detail?id=5007 | |
135 Handle<JSObject> error = Handle<JSObject>::cast(error_obj); | |
136 Handle<Object> stack_trace_obj = JSReceiver::GetDataProperty( | |
137 error, isolate->factory()->stack_trace_symbol()); | |
138 // Patch the stack trace (array of <receiver, function, code, position>). | |
139 if (stack_trace_obj->IsJSArray()) { | |
140 Handle<FrameArray> stack_elements( | |
141 FrameArray::cast(JSArray::cast(*stack_trace_obj)->elements())); | |
142 DCHECK(stack_elements->Code(0)->kind() == AbstractCode::WASM_FUNCTION); | |
143 DCHECK(stack_elements->Offset(0)->value() >= 0); | |
144 stack_elements->SetOffset(0, Smi::FromInt(-1 - byte_offset)); | |
145 } | |
146 | |
147 // Patch the detailed stack trace (array of JSObjects with various | |
148 // properties). | |
149 Handle<Object> detailed_stack_trace_obj = JSReceiver::GetDataProperty( | |
150 error, isolate->factory()->detailed_stack_trace_symbol()); | |
151 if (detailed_stack_trace_obj->IsJSArray()) { | |
152 Handle<FixedArray> stack_elements( | |
153 FixedArray::cast(JSArray::cast(*detailed_stack_trace_obj)->elements())); | |
154 DCHECK_GE(stack_elements->length(), 1); | |
155 Handle<JSObject> top_frame(JSObject::cast(stack_elements->get(0))); | |
156 Handle<String> wasm_offset_key = | |
157 isolate->factory()->InternalizeOneByteString( | |
158 STATIC_CHAR_VECTOR("column")); | |
159 LookupIterator it(top_frame, wasm_offset_key, top_frame, | |
160 LookupIterator::PROTOTYPE_CHAIN_SKIP_INTERCEPTOR); | |
161 if (it.IsFound()) { | |
162 DCHECK(JSReceiver::GetDataProperty(&it)->IsSmi()); | |
163 // Make column number 1-based here. | |
164 Maybe<bool> data_set = JSReceiver::SetDataProperty( | |
165 &it, handle(Smi::FromInt(byte_offset + 1), isolate)); | |
166 DCHECK(data_set.IsJust() && data_set.FromJust() == true); | |
167 USE(data_set); | |
168 } | |
169 } | |
170 | |
171 return isolate->Throw(*error_obj); | |
172 } | |
173 | |
174 RUNTIME_FUNCTION(Runtime_UnwindAndFindExceptionHandler) { | 120 RUNTIME_FUNCTION(Runtime_UnwindAndFindExceptionHandler) { |
175 SealHandleScope shs(isolate); | 121 SealHandleScope shs(isolate); |
176 DCHECK(args.length() == 0); | 122 DCHECK(args.length() == 0); |
177 return isolate->UnwindAndFindHandler(); | 123 return isolate->UnwindAndFindHandler(); |
178 } | 124 } |
179 | 125 |
180 | 126 |
181 RUNTIME_FUNCTION(Runtime_PromoteScheduledException) { | 127 RUNTIME_FUNCTION(Runtime_PromoteScheduledException) { |
182 SealHandleScope shs(isolate); | 128 SealHandleScope shs(isolate); |
183 DCHECK(args.length() == 0); | 129 DCHECK(args.length() == 0); |
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515 | 461 |
516 RUNTIME_FUNCTION(Runtime_OrdinaryHasInstance) { | 462 RUNTIME_FUNCTION(Runtime_OrdinaryHasInstance) { |
517 HandleScope scope(isolate); | 463 HandleScope scope(isolate); |
518 DCHECK_EQ(2, args.length()); | 464 DCHECK_EQ(2, args.length()); |
519 CONVERT_ARG_HANDLE_CHECKED(Object, callable, 0); | 465 CONVERT_ARG_HANDLE_CHECKED(Object, callable, 0); |
520 CONVERT_ARG_HANDLE_CHECKED(Object, object, 1); | 466 CONVERT_ARG_HANDLE_CHECKED(Object, object, 1); |
521 RETURN_RESULT_OR_FAILURE( | 467 RETURN_RESULT_OR_FAILURE( |
522 isolate, Object::OrdinaryHasInstance(isolate, callable, object)); | 468 isolate, Object::OrdinaryHasInstance(isolate, callable, object)); |
523 } | 469 } |
524 | 470 |
525 RUNTIME_FUNCTION(Runtime_IsWasmInstance) { | |
526 HandleScope scope(isolate); | |
527 DCHECK_EQ(1, args.length()); | |
528 CONVERT_ARG_CHECKED(Object, object, 0); | |
529 bool is_wasm_instance = | |
530 object->IsJSObject() && wasm::IsWasmInstance(JSObject::cast(object)); | |
531 return *isolate->factory()->ToBoolean(is_wasm_instance); | |
532 } | |
533 | |
534 RUNTIME_FUNCTION(Runtime_Typeof) { | 471 RUNTIME_FUNCTION(Runtime_Typeof) { |
535 HandleScope scope(isolate); | 472 HandleScope scope(isolate); |
536 DCHECK_EQ(1, args.length()); | 473 DCHECK_EQ(1, args.length()); |
537 CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); | 474 CONVERT_ARG_HANDLE_CHECKED(Object, object, 0); |
538 return *Object::TypeOf(isolate, object); | 475 return *Object::TypeOf(isolate, object); |
539 } | 476 } |
540 | 477 |
541 } // namespace internal | 478 } // namespace internal |
542 } // namespace v8 | 479 } // namespace v8 |
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