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/builtins/builtins.h"
       6             : #include "src/builtins/builtins-utils.h"
       7             : 
       8             : #include "src/accessors.h"
       9             : #include "src/counters.h"
      10             : #include "src/messages.h"
      11             : #include "src/objects-inl.h"
      12             : #include "src/property-descriptor.h"
      13             : #include "src/string-builder.h"
      14             : 
      15             : namespace v8 {
      16             : namespace internal {
      17             : 
      18             : // ES6 section 19.5.1.1 Error ( message )
      19       43050 : 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       14350 :   if (args.new_target()->IsJSFunction()) {
      29             :     mode = SKIP_UNTIL_SEEN;
      30       13852 :     caller = args.new_target();
      31             :   }
      32             : 
      33       43040 :   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         570 : BUILTIN(ErrorCaptureStackTrace) {
      42             :   HandleScope scope(isolate);
      43             :   Handle<Object> object_obj = args.atOrUndefined(isolate, 1);
      44             : 
      45         190 :   if (!object_obj->IsJSObject()) {
      46          20 :     THROW_NEW_ERROR_RETURN_FAILURE(
      47             :         isolate, NewTypeError(MessageTemplate::kInvalidArgument, object_obj));
      48             :   }
      49             : 
      50             :   Handle<JSObject> object = Handle<JSObject>::cast(object_obj);
      51             :   Handle<Object> caller = args.atOrUndefined(isolate, 2);
      52         180 :   FrameSkipMode mode = caller->IsJSFunction() ? SKIP_UNTIL_SEEN : SKIP_FIRST;
      53             : 
      54             :   // Collect the stack trace.
      55             : 
      56         360 :   RETURN_FAILURE_ON_EXCEPTION(isolate,
      57             :                               isolate->CaptureAndSetDetailedStackTrace(object));
      58         360 :   RETURN_FAILURE_ON_EXCEPTION(
      59             :       isolate, isolate->CaptureAndSetSimpleStackTrace(object, mode, caller));
      60             : 
      61             :   // Add the stack accessors.
      62             : 
      63             :   Handle<AccessorInfo> error_stack =
      64         180 :       Accessors::ErrorStackInfo(isolate, DONT_ENUM);
      65             : 
      66             :   // Explicitly check for frozen objects. Other access checks are performed by
      67             :   // the LookupIterator in SetAccessor below.
      68         180 :   if (!JSObject::IsExtensible(object)) {
      69             :     return isolate->Throw(*isolate->factory()->NewTypeError(
      70             :         MessageTemplate::kDefineDisallowed,
      71          60 :         handle(error_stack->name(), isolate)));
      72             :   }
      73             : 
      74         300 :   RETURN_FAILURE_ON_EXCEPTION(isolate,
      75             :                               JSObject::SetAccessor(object, error_stack));
      76         150 :   return isolate->heap()->undefined_value();
      77             : }
      78             : 
      79             : // ES6 section 19.5.3.4 Error.prototype.toString ( )
      80      978927 : BUILTIN(ErrorPrototypeToString) {
      81             :   HandleScope scope(isolate);
      82      957772 :   RETURN_RESULT_OR_FAILURE(isolate,
      83             :                            ErrorUtils::ToString(isolate, args.receiver()));
      84             : }
      85             : 
      86             : namespace {
      87             : 
      88        9061 : Object* MakeGenericError(Isolate* isolate, BuiltinArguments args,
      89             :                          Handle<JSFunction> constructor) {
      90             :   Handle<Object> template_index = args.atOrUndefined(isolate, 1);
      91        9061 :   Handle<Object> arg0 = args.atOrUndefined(isolate, 2);
      92        9061 :   Handle<Object> arg1 = args.atOrUndefined(isolate, 3);
      93        9061 :   Handle<Object> arg2 = args.atOrUndefined(isolate, 4);
      94             : 
      95             :   DCHECK(template_index->IsSmi());
      96             : 
      97       27183 :   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             : 
     105           0 : BUILTIN(MakeError) {
     106             :   HandleScope scope(isolate);
     107           0 :   return MakeGenericError(isolate, args, isolate->error_function());
     108             : }
     109             : 
     110        1161 : BUILTIN(MakeRangeError) {
     111             :   HandleScope scope(isolate);
     112         774 :   return MakeGenericError(isolate, args, isolate->range_error_function());
     113             : }
     114             : 
     115           0 : BUILTIN(MakeSyntaxError) {
     116             :   HandleScope scope(isolate);
     117           0 :   return MakeGenericError(isolate, args, isolate->syntax_error_function());
     118             : }
     119             : 
     120       26022 : BUILTIN(MakeTypeError) {
     121             :   HandleScope scope(isolate);
     122       17348 :   return MakeGenericError(isolate, args, isolate->type_error_function());
     123             : }
     124             : 
     125           0 : BUILTIN(MakeURIError) {
     126             :   HandleScope scope(isolate);
     127           0 :   Handle<JSFunction> constructor = isolate->uri_error_function();
     128             :   Handle<Object> undefined = isolate->factory()->undefined_value();
     129             :   const int template_index = MessageTemplate::kURIMalformed;
     130           0 :   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