Extract ParseInfo from CompilationInfo.

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 1904 matching lines @@
     if (!origin.ResourceIsEmbedderDebugScript().IsEmpty()) {
       script->set_is_embedder_debug_script(
           origin.ResourceIsEmbedderDebugScript()->IsTrue());
     }
     if (!origin.SourceMapUrl().IsEmpty()) {
       script->set_source_mapping_url(
           *Utils::OpenHandle(*(origin.SourceMapUrl())));
     }
 
     source->info->set_script(script);
-    source->info->SetContext(isolate->native_context());
+    source->info->set_context(isolate->native_context());
 
     // Do the parsing tasks which need to be done on the main thread. This will
     // also handle parse errors.
     source->parser->Internalize(isolate, script,
                                 source->info->function() == nullptr);
     source->parser->HandleSourceURLComments(isolate, script);
 
     i::Handle<i::SharedFunctionInfo> result;
     if (source->info->function() != nullptr) {
       // Parsing has succeeded.
-      result =
-          i::Compiler::CompileStreamedScript(source->info.get(), str->length());
+      result = i::Compiler::CompileStreamedScript(script, source->info.get(),
+                                                  str->length());
     }
     has_pending_exception = result.is_null();
     if (has_pending_exception) isolate->ReportPendingMessages();
     RETURN_ON_FAILED_EXECUTION(Script);
 
-    raw_result = *result;
-    // The Handle<Script> will go out of scope soon; make sure CompilationInfo
-    // doesn't point to it.
-    source->info->set_script(i::Handle<i::Script>());
-  }  // HandleScope goes out of scope.
+    source->info->clear_script();  // because script goes out of scope.
+    raw_result = *result;          // TODO(titzer): use CloseAndEscape?
+  }
+
   i::Handle<i::SharedFunctionInfo> result(raw_result, isolate);
   Local<UnboundScript> generic = ToApiHandle<UnboundScript>(result);
   if (generic.IsEmpty()) return Local<Script>();
   RETURN_ESCAPED(generic->BindToCurrentContext());
 }
 
 
 Local<Script> ScriptCompiler::Compile(Isolate* v8_isolate,
                                       StreamedSource* v8_source,
                                       Handle<String> full_source_string,
@@ skipping 6040 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