1 // Copyright 2016 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #include "src/accessors.h"
6 #include "src/builtins/builtins-utils-inl.h"
7 #include "src/builtins/builtins.h"
8 #include "src/counters.h"
9 #include "src/messages.h"
10 #include "src/objects-inl.h"
11 #include "src/objects/api-callbacks.h"
12 #include "src/property-descriptor.h"
13
14 namespace v8 {
15 namespace internal {
16
17 // ES6 section 19.5.1.1 Error ( message )
BUILTIN(ErrorConstructor)18 BUILTIN(ErrorConstructor) {
19 HandleScope scope(isolate);
20
21 FrameSkipMode mode = SKIP_FIRST;
22 Handle<Object> caller;
23
24 // When we're passed a JSFunction as new target, we can skip frames until that
25 // specific function is seen instead of unconditionally skipping the first
26 // frame.
27 if (args.new_target()->IsJSFunction()) {
28 mode = SKIP_UNTIL_SEEN;
29 caller = args.new_target();
30 }
31
32 RETURN_RESULT_OR_FAILURE(
33 isolate, ErrorUtils::Construct(isolate, args.target(),
34 Handle<Object>::cast(args.new_target()),
35 args.atOrUndefined(isolate, 1), mode,
36 caller, false));
37 }
38
39 // static
BUILTIN(ErrorCaptureStackTrace)40 BUILTIN(ErrorCaptureStackTrace) {
41 HandleScope scope(isolate);
42 Handle<Object> object_obj = args.atOrUndefined(isolate, 1);
43
44 isolate->CountUsage(v8::Isolate::kErrorCaptureStackTrace);
45
46 if (!object_obj->IsJSObject()) {
47 THROW_NEW_ERROR_RETURN_FAILURE(
48 isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj));
49 }
50
51 Handle<JSObject> object = Handle<JSObject>::cast(object_obj);
52 Handle<Object> caller = args.atOrUndefined(isolate, 2);
53 FrameSkipMode mode = caller->IsJSFunction() ? SKIP_UNTIL_SEEN : SKIP_FIRST;
54
55 // Collect the stack trace.
56
57 RETURN_FAILURE_ON_EXCEPTION(isolate,
58 isolate->CaptureAndSetDetailedStackTrace(object));
59 RETURN_FAILURE_ON_EXCEPTION(
60 isolate, isolate->CaptureAndSetSimpleStackTrace(object, mode, caller));
61
62 // Add the stack accessors.
63
64 Handle<AccessorInfo> error_stack = isolate->factory()->error_stack_accessor();
65 Handle<Name> name(Name::cast(error_stack->name()), isolate);
66
67 // Explicitly check for frozen objects. Other access checks are performed by
68 // the LookupIterator in SetAccessor below.
69 if (!JSObject::IsExtensible(object)) {
70 return isolate->Throw(*isolate->factory()->NewTypeError(
71 MessageTemplate::kDefineDisallowed, name));
72 }
73
74 RETURN_FAILURE_ON_EXCEPTION(
75 isolate, JSObject::SetAccessor(object, name, error_stack, DONT_ENUM));
76 return ReadOnlyRoots(isolate).undefined_value();
77 }
78
79 // ES6 section 19.5.3.4 Error.prototype.toString ( )
BUILTIN(ErrorPrototypeToString)80 BUILTIN(ErrorPrototypeToString) {
81 HandleScope scope(isolate);
82 RETURN_RESULT_OR_FAILURE(isolate,
83 ErrorUtils::ToString(isolate, args.receiver()));
84 }
85
86 namespace {
87
MakeGenericError(Isolate * isolate,BuiltinArguments args,Handle<JSFunction> constructor)88 Object* MakeGenericError(Isolate* isolate, BuiltinArguments args,
89 Handle<JSFunction> constructor) {
90 Handle<Object> template_index = args.atOrUndefined(isolate, 1);
91 Handle<Object> arg0 = args.atOrUndefined(isolate, 2);
92 Handle<Object> arg1 = args.atOrUndefined(isolate, 3);
93 Handle<Object> arg2 = args.atOrUndefined(isolate, 4);
94
95 DCHECK(template_index->IsSmi());
96
97 RETURN_RESULT_OR_FAILURE(
98 isolate, ErrorUtils::MakeGenericError(isolate, constructor,
99 Smi::ToInt(*template_index), arg0,
100 arg1, arg2, SKIP_NONE));
101 }
102
103 } // namespace
104
BUILTIN(MakeError)105 BUILTIN(MakeError) {
106 HandleScope scope(isolate);
107 return MakeGenericError(isolate, args, isolate->error_function());
108 }
109
BUILTIN(MakeRangeError)110 BUILTIN(MakeRangeError) {
111 HandleScope scope(isolate);
112 return MakeGenericError(isolate, args, isolate->range_error_function());
113 }
114
BUILTIN(MakeSyntaxError)115 BUILTIN(MakeSyntaxError) {
116 HandleScope scope(isolate);
117 return MakeGenericError(isolate, args, isolate->syntax_error_function());
118 }
119
BUILTIN(MakeTypeError)120 BUILTIN(MakeTypeError) {
121 HandleScope scope(isolate);
122 return MakeGenericError(isolate, args, isolate->type_error_function());
123 }
124
BUILTIN(MakeURIError)125 BUILTIN(MakeURIError) {
126 HandleScope scope(isolate);
127 Handle<JSFunction> constructor = isolate->uri_error_function();
128 Handle<Object> undefined = isolate->factory()->undefined_value();
129 const int template_index = MessageTemplate::kURIMalformed;
130 RETURN_RESULT_OR_FAILURE(
131 isolate,
132 ErrorUtils::MakeGenericError(isolate, constructor, template_index,
133 undefined, undefined, undefined, SKIP_NONE));
134 }
135
136 } // namespace internal
137 } // namespace v8
138