Reland "Soft fail for invalid cache data."

src/api.cc

 // Copyright 2012 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/api.h"
 
 #include <string.h>  // For memcpy, strlen.
 #ifdef V8_USE_ADDRESS_SANITIZER
 #include <sanitizer/asan_interface.h>
 #endif  // V8_USE_ADDRESS_SANITIZER
@@ skipping 1519 matching lines @@
 
 
 // --- S c r i p t s ---
 
 
 // Internally, UnboundScript is a SharedFunctionInfo, and Script is a
 // JSFunction.
 
 ScriptCompiler::CachedData::CachedData(const uint8_t* data_, int length_,
                                        BufferPolicy buffer_policy_)
-    : data(data_), length(length_), buffer_policy(buffer_policy_) {}
+    : data(data_),
+      length(length_),
+      rejected(false),
+      buffer_policy(buffer_policy_) {}
 
 
 ScriptCompiler::CachedData::~CachedData() {
   if (buffer_policy == BufferOwned) {
     delete[] data;
   }
 }
 
 
 ScriptCompiler::StreamedSource::StreamedSource(ExternalSourceStream* stream,
@@ skipping 195 matching lines @@
     EXCEPTION_BAILOUT_CHECK(isolate, Local<UnboundScript>());
     raw_result = *result;
 
     if ((options == kProduceParserCache || options == kProduceCodeCache) &&
         script_data != NULL) {
       // script_data now contains the data that was generated. source will
       // take the ownership.
       source->cached_data = new CachedData(
           script_data->data(), script_data->length(), CachedData::BufferOwned);
       script_data->ReleaseDataOwnership();
+    } else if (options == kConsumeParserCache || options == kConsumeCodeCache) {
+      source->cached_data->rejected = script_data->rejected();
     }
     delete script_data;
   }
   i::Handle<i::SharedFunctionInfo> result(raw_result, isolate);
   return ToApiHandle<UnboundScript>(result);
 }
 
 
 Local<Script> ScriptCompiler::Compile(
     Isolate* v8_isolate,
@@ skipping 6012 matching lines @@
   Isolate* isolate = reinterpret_cast<Isolate*>(info.GetIsolate());
   Address callback_address =
       reinterpret_cast<Address>(reinterpret_cast<intptr_t>(callback));
   VMState<EXTERNAL> state(isolate);
   ExternalCallbackScope call_scope(isolate, callback_address);
   callback(info);
 }
 
 
 } }  // namespace v8::internal