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// 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/builtins.h"
#include "src/builtins/builtins-utils.h"
#include "src/counters.h"
#include "src/messages.h"
#include "src/objects-inl.h"
#include "src/property-descriptor.h"
#include "src/string-builder.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, false));
}
// static
BUILTIN(ErrorCaptureStackTrace) {
HandleScope scope(isolate);
Handle<Object> object_obj = args.atOrUndefined(isolate, 1);
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));
// Eagerly format the stack trace and set the stack property.
Handle<Object> stack_trace =
isolate->CaptureSimpleStackTrace(object, mode, caller);
if (!stack_trace->IsJSArray()) return isolate->heap()->undefined_value();
Handle<Object> formatted_stack_trace;
ASSIGN_RETURN_FAILURE_ON_EXCEPTION(
isolate, formatted_stack_trace,
ErrorUtils::FormatStackTrace(isolate, object, stack_trace));
PropertyDescriptor desc;
desc.set_configurable(true);
desc.set_writable(true);
desc.set_value(formatted_stack_trace);
Maybe<bool> status = JSReceiver::DefineOwnProperty(
isolate, object, isolate->factory()->stack_string(), &desc,
Object::THROW_ON_ERROR);
if (!status.IsJust()) return isolate->heap()->exception();
CHECK(status.FromJust());
return isolate->heap()->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,
Smi::cast(*template_index)->value(),
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();
const int template_index = MessageTemplate::kURIMalformed;
RETURN_RESULT_OR_FAILURE(
isolate,
ErrorUtils::MakeGenericError(isolate, constructor, template_index,
undefined, undefined, undefined, SKIP_NONE));
}
} // namespace internal
} // namespace v8
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