WIP: Reland CompiledScript, prototype compiling in a separate task.

third_party/WebKit/Source/bindings/core/v8/ScriptController.cpp

 /*
  * Copyright (C) 2008, 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2014 Opera Software ASA. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
@@ skipping 14 matching lines @@
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "bindings/core/v8/ScriptController.h"
 
+#include "bindings/core/v8/CompiledScript.h"
 #include "bindings/core/v8/ScriptSourceCode.h"
 #include "bindings/core/v8/ScriptValue.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/core/v8/V8Event.h"
 #include "bindings/core/v8/V8GCController.h"
 #include "bindings/core/v8/V8HTMLElement.h"
 #include "bindings/core/v8/V8PerContextData.h"
 #include "bindings/core/v8/V8ScriptRunner.h"
 #include "bindings/core/v8/V8Window.h"
 #include "bindings/core/v8/WindowProxy.h"
@@ skipping 108 matching lines @@
       return result;
   }
 
   TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"),
                        "UpdateCounters", TRACE_EVENT_SCOPE_THREAD, "data",
                        InspectorUpdateCountersEvent::data());
 
   return result;
 }
 
+CompiledScript* ScriptController::compileScriptInMainWorld(
+    const ScriptSourceCode& source,
+    AccessControlStatus accessControlStatus) {
+  V8CacheOptions v8CacheOptions =
+      cacheOptions(source.resource(), frame()->settings());
+
+  v8::HandleScope handleScope(isolate());
+  v8::TryCatch tryCatch(isolate());
+  tryCatch.SetVerbose(true);
+
+  v8::Local<v8::Script> script;
+  if (!v8Call(V8ScriptRunner::compileScript(
+                  source, isolate(), accessControlStatus, v8CacheOptions),
+              script, tryCatch)) {
+    return nullptr;
+  }
+
+  TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"),
+                       "UpdateCounters", TRACE_EVENT_SCOPE_THREAD, "data",
+                       InspectorUpdateCountersEvent::data());
+  DCHECK_EQ(currentExecutionContext(isolate()), frame()->document());
+  return new CompiledScript(frame()->document(), script, source);
+}
+
+void ScriptController::executeScriptInMainWorld(
+    const CompiledScript& compiledScript) {
+  Document* document = frame()->document();
+
+  TRACE_EVENT1("devtools.timeline", "EvaluateScript", "data",
+               InspectorEvaluateScriptEvent::data(
+                   frame(), compiledScript.url().getString(),
+                   compiledScript.startPosition()));
+  InspectorInstrumentation::NativeBreakpoint nativeBreakpoint(
+      document, "scriptFirstStatement");
+
+  v8::HandleScope handleScope(isolate());
+  ScriptState::Scope scope(ScriptState::forMainWorld(frame()));
+  v8::TryCatch tryCatch(isolate());
+  tryCatch.SetVerbose(true);
+
+  v8::Local<v8::Script> script = compiledScript.getScript(document);
+  if (script.IsEmpty()) {
+    CHECK(false) << "Don't do this for now";
+    // TODO(jbroman): accessControlStatus
+    AccessControlStatus accessControlStatus = NotSharableCrossOrigin;
+    CompiledScript* recompiledScript = compileScriptInMainWorld(
+        compiledScript.sourceCode(), accessControlStatus);
+    // TODO(jbroman): is this so?
+    DCHECK(recompiledScript);
+    script = recompiledScript->getScript(document);
+  }
+
+  DCHECK(!script.IsEmpty());
+  v8::Local<v8::Value> result;
+  if (!v8Call(V8ScriptRunner::runCompiledScript(isolate(), script, document),
+              result, tryCatch))
+    return;
+
+  TRACE_EVENT_INSTANT1(TRACE_DISABLED_BY_DEFAULT("devtools.timeline"),
+                       "UpdateCounters", TRACE_EVENT_SCOPE_THREAD, "data",
+                       InspectorUpdateCountersEvent::data());
+}
+
 LocalWindowProxy* ScriptController::windowProxy(DOMWrapperWorld& world) {
   LocalWindowProxy* windowProxy = m_windowProxyManager->windowProxy(world);
   windowProxy->initializeIfNeeded();
   return windowProxy;
 }
 
 bool ScriptController::shouldBypassMainWorldCSP() {
   v8::HandleScope handleScope(isolate());
   v8::Local<v8::Context> context = isolate()->GetCurrentContext();
   if (context.IsEmpty() || !toDOMWindow(context))
@@ skipping 208 matching lines @@
     for (size_t i = 0; i < resultArray->Length(); ++i) {
       v8::Local<v8::Value> value;
       if (!resultArray->Get(scriptState->context(), i).ToLocal(&value))
         return;
       results->push_back(value);
     }
   }
 }
 
 }  // namespace blink