Line data    Source code

       1             : // Copyright 2015 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/pending-compilation-error-handler.h"
       6             : 
       7             : #include "src/ast/ast-value-factory.h"
       8             : #include "src/debug/debug.h"
       9             : #include "src/handles.h"
      10             : #include "src/isolate.h"
      11             : #include "src/messages.h"
      12             : #include "src/objects-inl.h"
      13             : 
      14             : namespace v8 {
      15             : namespace internal {
      16             : 
      17      389312 : Handle<String> PendingCompilationErrorHandler::MessageDetails::ArgumentString(
      18             :     Isolate* isolate) const {
      19      389312 :   if (arg_ != nullptr) return arg_->string();
      20      311489 :   if (char_arg_ != nullptr) {
      21             :     return isolate->factory()
      22      210522 :         ->NewStringFromUtf8(CStrVector(char_arg_))
      23             :         .ToHandleChecked();
      24             :   }
      25             :   return isolate->factory()->undefined_string();
      26             : }
      27             : 
      28           0 : MessageLocation PendingCompilationErrorHandler::MessageDetails::GetLocation(
      29             :     Handle<Script> script) const {
      30      386270 :   return MessageLocation(script, start_position_, end_position_);
      31             : }
      32             : 
      33     2295830 : void PendingCompilationErrorHandler::ReportMessageAt(
      34             :     int start_position, int end_position, MessageTemplate message,
      35             :     const char* arg, ParseErrorType error_type) {
      36     2295830 :   if (has_pending_error_) return;
      37      431001 :   has_pending_error_ = true;
      38             : 
      39             :   error_details_ =
      40      431001 :       MessageDetails(start_position, end_position, message, nullptr, arg);
      41      431001 :   error_type_ = error_type;
      42             : }
      43             : 
      44       80506 : void PendingCompilationErrorHandler::ReportMessageAt(
      45             :     int start_position, int end_position, MessageTemplate message,
      46             :     const AstRawString* arg, ParseErrorType error_type) {
      47       80506 :   if (has_pending_error_) return;
      48       79259 :   has_pending_error_ = true;
      49             : 
      50             :   error_details_ =
      51       79259 :       MessageDetails(start_position, end_position, message, arg, nullptr);
      52       79259 :   error_type_ = error_type;
      53             : }
      54             : 
      55        1260 : void PendingCompilationErrorHandler::ReportWarningAt(int start_position,
      56             :                                                      int end_position,
      57             :                                                      MessageTemplate message,
      58             :                                                      const char* arg) {
      59        1261 :   warning_messages_.emplace_front(
      60             :       MessageDetails(start_position, end_position, message, nullptr, arg));
      61        1261 : }
      62             : 
      63         449 : void PendingCompilationErrorHandler::ReportWarnings(Isolate* isolate,
      64             :                                                     Handle<Script> script) {
      65             :   DCHECK(!has_pending_error());
      66             : 
      67         898 :   for (const MessageDetails& warning : warning_messages_) {
      68             :     MessageLocation location = warning.GetLocation(script);
      69         449 :     Handle<String> argument = warning.ArgumentString(isolate);
      70             :     Handle<JSMessageObject> message =
      71             :         MessageHandler::MakeMessageObject(isolate, warning.message(), &location,
      72         449 :                                           argument, Handle<FixedArray>::null());
      73             :     message->set_error_level(v8::Isolate::kMessageWarning);
      74         449 :     MessageHandler::ReportMessage(isolate, &location, message);
      75             :   }
      76         449 : }
      77             : 
      78      392596 : void PendingCompilationErrorHandler::ReportErrors(
      79             :     Isolate* isolate, Handle<Script> script,
      80             :     AstValueFactory* ast_value_factory) {
      81      392596 :   if (stack_overflow()) {
      82        6775 :     isolate->StackOverflow();
      83             :   } else {
      84             :     DCHECK(has_pending_error());
      85             :     // Internalize ast values for throwing the pending error.
      86      385821 :     ast_value_factory->Internalize(isolate);
      87      385821 :     ThrowPendingError(isolate, script);
      88             :   }
      89      392596 : }
      90             : 
      91      385821 : void PendingCompilationErrorHandler::ThrowPendingError(Isolate* isolate,
      92             :                                                        Handle<Script> script) {
      93      385851 :   if (!has_pending_error_) return;
      94             : 
      95             :   MessageLocation location = error_details_.GetLocation(script);
      96      385821 :   Handle<String> argument = error_details_.ArgumentString(isolate);
      97      385821 :   isolate->debug()->OnCompileError(script);
      98             : 
      99             :   Factory* factory = isolate->factory();
     100             :   Handle<Object> error;
     101      385821 :   switch (error_type_) {
     102             :     case kReferenceError:
     103        5831 :       error = factory->NewReferenceError(error_details_.message(), argument);
     104        5831 :       break;
     105             :     case kSyntaxError:
     106      379990 :       error = factory->NewSyntaxError(error_details_.message(), argument);
     107      379990 :       break;
     108             :     default:
     109           0 :       UNREACHABLE();
     110             :       break;
     111             :   }
     112             : 
     113      385821 :   if (!error->IsJSObject()) {
     114          30 :     isolate->Throw(*error, &location);
     115          30 :     return;
     116             :   }
     117             : 
     118             :   Handle<JSObject> jserror = Handle<JSObject>::cast(error);
     119             : 
     120             :   Handle<Name> key_start_pos = factory->error_start_pos_symbol();
     121      771582 :   Object::SetProperty(isolate, jserror, key_start_pos,
     122             :                       handle(Smi::FromInt(location.start_pos()), isolate),
     123             :                       StoreOrigin::kMaybeKeyed,
     124      385791 :                       Just(ShouldThrow::kThrowOnError))
     125             :       .Check();
     126             : 
     127             :   Handle<Name> key_end_pos = factory->error_end_pos_symbol();
     128      771582 :   Object::SetProperty(isolate, jserror, key_end_pos,
     129             :                       handle(Smi::FromInt(location.end_pos()), isolate),
     130             :                       StoreOrigin::kMaybeKeyed,
     131      385791 :                       Just(ShouldThrow::kThrowOnError))
     132             :       .Check();
     133             : 
     134             :   Handle<Name> key_script = factory->error_script_symbol();
     135      771582 :   Object::SetProperty(isolate, jserror, key_script, script,
     136             :                       StoreOrigin::kMaybeKeyed,
     137      385791 :                       Just(ShouldThrow::kThrowOnError))
     138             :       .Check();
     139             : 
     140      385791 :   isolate->Throw(*error, &location);
     141             : }
     142             : 
     143        3042 : Handle<String> PendingCompilationErrorHandler::FormatErrorMessageForTest(
     144             :     Isolate* isolate) const {
     145             :   return MessageFormatter::Format(isolate, error_details_.message(),
     146        6084 :                                   error_details_.ArgumentString(isolate));
     147             : }
     148             : 
     149             : }  // namespace internal
     150      122036 : }  // namespace v8