1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
// Copyright 2016 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/builtins/accessors.h"
#include "src/builtins/builtins-utils-inl.h"
#include "src/builtins/builtins.h"
#include "src/execution/isolate-inl.h"
#include "src/execution/messages.h"
#include "src/logging/counters.h"
#include "src/objects/api-callbacks.h"
#include "src/objects/objects-inl.h"
#include "src/objects/property-descriptor.h"
namespace v8 {
namespace internal {
// ES6 section 19.5.1.1 Error ( message )
BUILTIN(ErrorConstructor) {
HandleScope scope(isolate);
FrameSkipMode mode = SKIP_FIRST;
Handle<Object> caller;
// When we're passed a JSFunction as new target, we can skip frames until that
// specific function is seen instead of unconditionally skipping the first
// frame.
if (args.new_target()->IsJSFunction()) {
mode = SKIP_UNTIL_SEEN;
caller = args.new_target();
}
RETURN_RESULT_OR_FAILURE(
isolate,
ErrorUtils::Construct(isolate, args.target(),
Handle<Object>::cast(args.new_target()),
args.atOrUndefined(isolate, 1), mode, caller,
ErrorUtils::StackTraceCollection::kDetailed));
}
// static
BUILTIN(ErrorCaptureStackTrace) {
HandleScope scope(isolate);
Handle<Object> object_obj = args.atOrUndefined(isolate, 1);
isolate->CountUsage(v8::Isolate::kErrorCaptureStackTrace);
if (!object_obj->IsJSObject()) {
THROW_NEW_ERROR_RETURN_FAILURE(
isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj));
}
Handle<JSObject> object = Handle<JSObject>::cast(object_obj);
Handle<Object> caller = args.atOrUndefined(isolate, 2);
FrameSkipMode mode = caller->IsJSFunction() ? SKIP_UNTIL_SEEN : SKIP_FIRST;
// Collect the stack trace.
RETURN_FAILURE_ON_EXCEPTION(isolate,
isolate->CaptureAndSetDetailedStackTrace(object));
RETURN_FAILURE_ON_EXCEPTION(
isolate, isolate->CaptureAndSetSimpleStackTrace(object, mode, caller));
// Add the stack accessors.
Handle<AccessorInfo> error_stack = isolate->factory()->error_stack_accessor();
Handle<Name> name(Name::cast(error_stack->name()), isolate);
// Explicitly check for frozen objects. Other access checks are performed by
// the LookupIterator in SetAccessor below.
if (!JSObject::IsExtensible(object)) {
return isolate->Throw(*isolate->factory()->NewTypeError(
MessageTemplate::kDefineDisallowed, name));
}
RETURN_FAILURE_ON_EXCEPTION(
isolate, JSObject::SetAccessor(object, name, error_stack, DONT_ENUM));
return ReadOnlyRoots(isolate).undefined_value();
}
// ES6 section 19.5.3.4 Error.prototype.toString ( )
BUILTIN(ErrorPrototypeToString) {
HandleScope scope(isolate);
RETURN_RESULT_OR_FAILURE(isolate,
ErrorUtils::ToString(isolate, args.receiver()));
}
namespace {
Object MakeGenericError(Isolate* isolate, BuiltinArguments args,
Handle<JSFunction> constructor) {
Handle<Object> template_index = args.atOrUndefined(isolate, 1);
Handle<Object> arg0 = args.atOrUndefined(isolate, 2);
Handle<Object> arg1 = args.atOrUndefined(isolate, 3);
Handle<Object> arg2 = args.atOrUndefined(isolate, 4);
DCHECK(template_index->IsSmi());
RETURN_RESULT_OR_FAILURE(
isolate, ErrorUtils::MakeGenericError(
isolate, constructor,
MessageTemplateFromInt(Smi::ToInt(*template_index)), arg0,
arg1, arg2, SKIP_NONE));
}
} // namespace
BUILTIN(MakeError) {
HandleScope scope(isolate);
return MakeGenericError(isolate, args, isolate->error_function());
}
BUILTIN(MakeRangeError) {
HandleScope scope(isolate);
return MakeGenericError(isolate, args, isolate->range_error_function());
}
BUILTIN(MakeSyntaxError) {
HandleScope scope(isolate);
return MakeGenericError(isolate, args, isolate->syntax_error_function());
}
BUILTIN(MakeTypeError) {
HandleScope scope(isolate);
return MakeGenericError(isolate, args, isolate->type_error_function());
}
BUILTIN(MakeURIError) {
HandleScope scope(isolate);
Handle<JSFunction> constructor = isolate->uri_error_function();
Handle<Object> undefined = isolate->factory()->undefined_value();
MessageTemplate template_index = MessageTemplate::kURIMalformed;
RETURN_RESULT_OR_FAILURE(
isolate,
ErrorUtils::MakeGenericError(isolate, constructor, template_index,
undefined, undefined, undefined, SKIP_NONE));
}
} // namespace internal
} // namespace v8
|
