Line data    Source code

       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/isolate-inl.h"
      10             : #include "src/messages.h"
      11             : #include "src/objects-inl.h"
      12             : #include "src/objects/api-callbacks.h"
      13             : #include "src/property-descriptor.h"
      14             : 
      15             : namespace v8 {
      16             : namespace internal {
      17             : 
      18             : // ES6 section 19.5.1.1 Error ( message )
      19      114100 : BUILTIN(ErrorConstructor) {
      20             :   HandleScope scope(isolate);
      21             : 
      22             :   FrameSkipMode mode = SKIP_FIRST;
      23             :   Handle<Object> caller;
      24             : 
      25             :   // When we're passed a JSFunction as new target, we can skip frames until that
      26             :   // specific function is seen instead of unconditionally skipping the first
      27             :   // frame.
      28       22820 :   if (args.new_target()->IsJSFunction()) {
      29             :     mode = SKIP_UNTIL_SEEN;
      30       22383 :     caller = args.new_target();
      31             :   }
      32             : 
      33       45649 :   RETURN_RESULT_OR_FAILURE(
      34             :       isolate, ErrorUtils::Construct(isolate, args.target(),
      35             :                                      Handle<Object>::cast(args.new_target()),
      36             :                                      args.atOrUndefined(isolate, 1), mode,
      37             :                                      caller, false));
      38             : }
      39             : 
      40             : // static
      41         945 : BUILTIN(ErrorCaptureStackTrace) {
      42             :   HandleScope scope(isolate);
      43             :   Handle<Object> object_obj = args.atOrUndefined(isolate, 1);
      44             : 
      45         189 :   isolate->CountUsage(v8::Isolate::kErrorCaptureStackTrace);
      46             : 
      47         189 :   if (!object_obj->IsJSObject()) {
      48          18 :     THROW_NEW_ERROR_RETURN_FAILURE(
      49             :         isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj));
      50             :   }
      51             : 
      52             :   Handle<JSObject> object = Handle<JSObject>::cast(object_obj);
      53             :   Handle<Object> caller = args.atOrUndefined(isolate, 2);
      54         180 :   FrameSkipMode mode = caller->IsJSFunction() ? SKIP_UNTIL_SEEN : SKIP_FIRST;
      55             : 
      56             :   // Collect the stack trace.
      57             : 
      58         360 :   RETURN_FAILURE_ON_EXCEPTION(isolate,
      59             :                               isolate->CaptureAndSetDetailedStackTrace(object));
      60         360 :   RETURN_FAILURE_ON_EXCEPTION(
      61             :       isolate, isolate->CaptureAndSetSimpleStackTrace(object, mode, caller));
      62             : 
      63             :   // Add the stack accessors.
      64             : 
      65             :   Handle<AccessorInfo> error_stack = isolate->factory()->error_stack_accessor();
      66             :   Handle<Name> name(Name::cast(error_stack->name()), isolate);
      67             : 
      68             :   // Explicitly check for frozen objects. Other access checks are performed by
      69             :   // the LookupIterator in SetAccessor below.
      70         180 :   if (!JSObject::IsExtensible(object)) {
      71          90 :     return isolate->Throw(*isolate->factory()->NewTypeError(
      72          90 :         MessageTemplate::kDefineDisallowed, name));
      73             :   }
      74             : 
      75         270 :   RETURN_FAILURE_ON_EXCEPTION(
      76             :       isolate, JSObject::SetAccessor(object, name, error_stack, DONT_ENUM));
      77         135 :   return ReadOnlyRoots(isolate).undefined_value();
      78             : }
      79             : 
      80             : // ES6 section 19.5.3.4 Error.prototype.toString ( )
      81     1493530 : BUILTIN(ErrorPrototypeToString) {
      82             :   HandleScope scope(isolate);
      83      611329 :   RETURN_RESULT_OR_FAILURE(isolate,
      84             :                            ErrorUtils::ToString(isolate, args.receiver()));
      85             : }
      86             : 
      87             : namespace {
      88             : 
      89          32 : Object MakeGenericError(Isolate* isolate, BuiltinArguments args,
      90             :                         Handle<JSFunction> constructor) {
      91             :   Handle<Object> template_index = args.atOrUndefined(isolate, 1);
      92          32 :   Handle<Object> arg0 = args.atOrUndefined(isolate, 2);
      93          32 :   Handle<Object> arg1 = args.atOrUndefined(isolate, 3);
      94          32 :   Handle<Object> arg2 = args.atOrUndefined(isolate, 4);
      95             : 
      96             :   DCHECK(template_index->IsSmi());
      97             : 
      98          64 :   RETURN_RESULT_OR_FAILURE(
      99             :       isolate, ErrorUtils::MakeGenericError(
     100             :                    isolate, constructor,
     101             :                    MessageTemplateFromInt(Smi::ToInt(*template_index)), arg0,
     102             :                    arg1, arg2, SKIP_NONE));
     103             : }
     104             : 
     105             : }  // namespace
     106             : 
     107           0 : BUILTIN(MakeError) {
     108             :   HandleScope scope(isolate);
     109           0 :   return MakeGenericError(isolate, args, isolate->error_function());
     110             : }
     111             : 
     112           0 : BUILTIN(MakeRangeError) {
     113             :   HandleScope scope(isolate);
     114           0 :   return MakeGenericError(isolate, args, isolate->range_error_function());
     115             : }
     116             : 
     117           0 : BUILTIN(MakeSyntaxError) {
     118             :   HandleScope scope(isolate);
     119           0 :   return MakeGenericError(isolate, args, isolate->syntax_error_function());
     120             : }
     121             : 
     122         160 : BUILTIN(MakeTypeError) {
     123             :   HandleScope scope(isolate);
     124          64 :   return MakeGenericError(isolate, args, isolate->type_error_function());
     125             : }
     126             : 
     127           0 : BUILTIN(MakeURIError) {
     128             :   HandleScope scope(isolate);
     129           0 :   Handle<JSFunction> constructor = isolate->uri_error_function();
     130             :   Handle<Object> undefined = isolate->factory()->undefined_value();
     131             :   MessageTemplate template_index = MessageTemplate::kURIMalformed;
     132           0 :   RETURN_RESULT_OR_FAILURE(
     133             :       isolate,
     134             :       ErrorUtils::MakeGenericError(isolate, constructor, template_index,
     135             :                                    undefined, undefined, undefined, SKIP_NONE));
     136             : }
     137             : 
     138             : }  // namespace internal
     139      121996 : }  // namespace v8