binding: Retires ExceptionState::throwIfNeeded().

third_party/WebKit/Source/core/inspector/MainThreadDebugger.cpp

 /*
  * Copyright (c) 2011 Google Inc. 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
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 320 matching lines @@
     if (info.Length() < 1)
         return;
     String selector = toCoreStringWithUndefinedOrNullCheck(info[0]);
     if (selector.isEmpty())
         return;
     Node* node = secondArgumentAsNode(info);
     if (!node || !node->isContainerNode())
         return;
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "$", "CommandLineAPI", info.Holder(), info.GetIsolate());
     Element* element = toContainerNode(node)->querySelector(AtomicString(selector), exceptionState);
-    if (exceptionState.throwIfNeeded())
+    if (exceptionState.hadException())
         return;
     if (element)
         info.GetReturnValue().Set(toV8(element, info.Holder(), info.GetIsolate()));
     else
         info.GetReturnValue().Set(v8::Null(info.GetIsolate()));
 }
 
 void MainThreadDebugger::querySelectorAllCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (info.Length() < 1)
         return;
     String selector = toCoreStringWithUndefinedOrNullCheck(info[0]);
     if (selector.isEmpty())
         return;
     Node* node = secondArgumentAsNode(info);
     if (!node || !node->isContainerNode())
         return;
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "$$", "CommandLineAPI", info.Holder(), info.GetIsolate());
     // toV8(elementList) doesn't work here, since we need a proper Array instance, not NodeList.
     StaticElementList* elementList = toContainerNode(node)->querySelectorAll(AtomicString(selector), exceptionState);
-    if (exceptionState.throwIfNeeded() || !elementList)
+    if (exceptionState.hadException() || !elementList)
         return;
     v8::Isolate* isolate = info.GetIsolate();
     v8::Local<v8::Context> context = isolate->GetCurrentContext();
     v8::Local<v8::Array> nodes = v8::Array::New(isolate, elementList->length());
     for (size_t i = 0; i < elementList->length(); ++i) {
         Element* element = elementList->item(i);
         if (!createDataPropertyInArray(context, nodes, i, toV8(element, info.Holder(), info.GetIsolate())).FromMaybe(false))
             return;
     }
     info.GetReturnValue().Set(nodes);
 }
 
 void MainThreadDebugger::xpathSelectorCallback(const v8::FunctionCallbackInfo<v8::Value>& info)
 {
     if (info.Length() < 1)
         return;
     String selector = toCoreStringWithUndefinedOrNullCheck(info[0]);
     if (selector.isEmpty())
         return;
     Node* node = secondArgumentAsNode(info);
     if (!node || !node->isContainerNode())
         return;
 
     ExceptionState exceptionState(ExceptionState::ExecutionContext, "$x", "CommandLineAPI", info.Holder(), info.GetIsolate());
     XPathResult* result = XPathEvaluator::create()->evaluate(selector, node, nullptr, XPathResult::kAnyType, ScriptValue(), exceptionState);
-    if (exceptionState.throwIfNeeded() || !result)
+    if (exceptionState.hadException() || !result)
         return;
     if (result->resultType() == XPathResult::kNumberType) {
         info.GetReturnValue().Set(toV8(result->numberValue(exceptionState), info.Holder(), info.GetIsolate()));
     } else if (result->resultType() == XPathResult::kStringType) {
         info.GetReturnValue().Set(toV8(result->stringValue(exceptionState), info.Holder(), info.GetIsolate()));
     } else if (result->resultType() == XPathResult::kBooleanType) {
         info.GetReturnValue().Set(toV8(result->booleanValue(exceptionState), info.Holder(), info.GetIsolate()));
     } else {
         v8::Isolate* isolate = info.GetIsolate();
         v8::Local<v8::Context> context = isolate->GetCurrentContext();
         v8::Local<v8::Array> nodes = v8::Array::New(isolate);
         size_t index = 0;
         while (Node* node = result->iterateNext(exceptionState)) {
-            if (exceptionState.throwIfNeeded())
+            if (exceptionState.hadException())
                 return;
             if (!createDataPropertyInArray(context, nodes, index++, toV8(node, info.Holder(), info.GetIsolate())).FromMaybe(false))
                 return;
         }
         info.GetReturnValue().Set(nodes);
     }
-    exceptionState.throwIfNeeded();
 }
 
 } // namespace blink