[json] check and handle interrupts.

src/json-parser.cc

 // 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/json-parser.h"
 
 #include "src/char-predicates-inl.h"
 #include "src/conversions.h"
 #include "src/debug/debug.h"
 #include "src/factory.h"
@@ skipping 231 matching lines @@
 
 // Parse any JSON value.
 template <bool seq_one_byte>
 Handle<Object> JsonParser<seq_one_byte>::ParseJsonValue() {
   StackLimitCheck stack_check(isolate_);
   if (stack_check.HasOverflowed()) {
     isolate_->StackOverflow();
     return Handle<Object>::null();
   }
 
-  if (stack_check.InterruptRequested()) {
-    ExecutionAccess access(isolate_);
-    // Avoid blocking GC in long running parser (v8:3974).
-    isolate_->stack_guard()->HandleGCInterrupt();
+  if (stack_check.InterruptRequested() &&
+      isolate_->stack_guard()->HandleInterrupts()->IsException()) {
+    return Handle<Object>::null();
   }
 
   if (c0_ == '"') return ParseJsonString();
   if ((c0_ >= '0' && c0_ <= '9') || c0_ == '-') return ParseJsonNumber();
   if (c0_ == '{') return ParseJsonObject();
   if (c0_ == '[') return ParseJsonArray();
   if (c0_ == 'f') {
     if (AdvanceGetChar() == 'a' && AdvanceGetChar() == 'l' &&
         AdvanceGetChar() == 's' && AdvanceGetChar() == 'e') {
       AdvanceSkipWhitespace();
@@ skipping 538 matching lines @@
   AdvanceSkipWhitespace();
   return result;
 }
 
 // Explicit instantiation.
 template class JsonParser<true>;
 template class JsonParser<false>;
 
 }  // namespace internal
 }  // namespace v8