Remove unused V8 integration code in Sky

sky/engine/bindings/core/v8/ScriptCallStackFactory.cpp

-/*
- * Copyright (c) 2010 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
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * 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 "sky/engine/config.h"
-#include "sky/engine/bindings/core/v8/ScriptCallStackFactory.h"
-
-#include "sky/engine/bindings/core/v8/ScriptValue.h"
-#include "sky/engine/bindings/core/v8/V8Binding.h"
-#include "sky/engine/core/inspector/ScriptArguments.h"
-#include "sky/engine/core/inspector/ScriptCallFrame.h"
-#include "sky/engine/core/inspector/ScriptCallStack.h"
-#include "sky/engine/platform/JSONValues.h"
-#include "sky/engine/wtf/text/StringBuilder.h"
-#include "v8/include/v8-debug.h"
-
-namespace blink {
-
-class ExecutionContext;
-
-static ScriptCallFrame toScriptCallFrame(v8::Handle<v8::StackFrame> frame)
-{
-    StringBuilder stringBuilder;
-    stringBuilder.appendNumber(frame->GetScriptId());
-    String scriptId = stringBuilder.toString();
-    String sourceName;
-    v8::Local<v8::String> sourceNameValue(frame->GetScriptNameOrSourceURL());
-    if (!sourceNameValue.IsEmpty())
-        sourceName = toCoreString(sourceNameValue);
-
-    String functionName;
-    v8::Local<v8::String> functionNameValue(frame->GetFunctionName());
-    if (!functionNameValue.IsEmpty())
-        functionName = toCoreString(functionNameValue);
-
-    int sourceLineNumber = frame->GetLineNumber();
-    int sourceColumn = frame->GetColumn();
-    return ScriptCallFrame(functionName, scriptId, sourceName, sourceLineNumber, sourceColumn);
-}
-
-static void toScriptCallFramesVector(v8::Handle<v8::StackTrace> stackTrace, Vector<ScriptCallFrame>& scriptCallFrames, size_t maxStackSize, bool emptyStackIsAllowed, v8::Isolate* isolate)
-{
-    ASSERT(isolate->InContext());
-    int frameCount = stackTrace->GetFrameCount();
-    if (frameCount > static_cast<int>(maxStackSize))
-        frameCount = maxStackSize;
-    for (int i = 0; i < frameCount; i++) {
-        v8::Local<v8::StackFrame> stackFrame = stackTrace->GetFrame(i);
-        scriptCallFrames.append(toScriptCallFrame(stackFrame));
-    }
-    if (!frameCount && !emptyStackIsAllowed) {
-        // Successfully grabbed stack trace, but there are no frames. It may happen in case
-        // when a bound function is called from native code for example.
-        // Fallback to setting lineNumber to 0, and source and function name to "undefined".
-        scriptCallFrames.append(ScriptCallFrame());
-    }
-}
-
-static PassRefPtr<ScriptCallStack> createScriptCallStack(v8::Handle<v8::StackTrace> stackTrace, size_t maxStackSize, bool emptyStackIsAllowed, v8::Isolate* isolate)
-{
-    ASSERT(isolate->InContext());
-    v8::HandleScope scope(isolate);
-    Vector<ScriptCallFrame> scriptCallFrames;
-    toScriptCallFramesVector(stackTrace, scriptCallFrames, maxStackSize, emptyStackIsAllowed, isolate);
-    RefPtr<ScriptCallStack> callStack = ScriptCallStack::create(scriptCallFrames);
-    return callStack.release();
-}
-
-PassRefPtr<ScriptCallStack> createScriptCallStack(v8::Handle<v8::StackTrace> stackTrace, size_t maxStackSize, v8::Isolate* isolate)
-{
-    return createScriptCallStack(stackTrace, maxStackSize, true, isolate);
-}
-
-PassRefPtr<ScriptCallStack> createScriptCallStack(size_t maxStackSize, bool emptyStackIsAllowed)
-{
-    v8::Isolate* isolate = v8::Isolate::GetCurrent();
-    if (!isolate->InContext())
-        return nullptr;
-    v8::HandleScope handleScope(isolate);
-    v8::Handle<v8::StackTrace> stackTrace(v8::StackTrace::CurrentStackTrace(isolate, maxStackSize, stackTraceOptions));
-    return createScriptCallStack(stackTrace, maxStackSize, emptyStackIsAllowed, isolate);
-}
-
-PassRefPtr<ScriptCallStack> createScriptCallStackForConsole(size_t maxStackSize, bool emptyStackIsAllowed)
-{
-    size_t stackSize = 1;
-    return createScriptCallStack(stackSize, emptyStackIsAllowed);
-}
-
-PassRefPtr<ScriptArguments> createScriptArguments(ScriptState* scriptState, const v8::FunctionCallbackInfo<v8::Value>& v8arguments, unsigned skipArgumentCount)
-{
-    Vector<ScriptValue> arguments;
-    for (int i = skipArgumentCount; i < v8arguments.Length(); ++i)
-        arguments.append(ScriptValue(scriptState, v8arguments[i]));
-
-    return ScriptArguments::create(scriptState, arguments);
-}
-
-} // namespace blink