Merge the Sky Engine changes from the SkyDart branch

sky/engine/core/inspector/ScriptArguments.cpp

Index: sky/engine/core/inspector/ScriptArguments.cpp
diff --git a/sky/engine/core/inspector/ScriptArguments.cpp b/sky/engine/core/inspector/ScriptArguments.cpp
deleted file mode 100644
index 006d1345dc760a6fd019a5e9820d0e6d764fe202..0000000000000000000000000000000000000000
--- a/sky/engine/core/inspector/ScriptArguments.cpp
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * 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/core/inspector/ScriptArguments.h"
-
-#include "sky/engine/bindings/core/v8/ScriptValue.h"
-#include "sky/engine/bindings/core/v8/V8Binding.h"
-#include "sky/engine/wtf/text/StringBuilder.h"
-#include "v8/include/v8.h"
-
-namespace blink {
-
-namespace {
-
-static const unsigned maxArrayItemsLimit = 10000;
-static const unsigned maxStackDepthLimit = 32;
-
-class V8ValueStringBuilder {
-public:
-    static String toString(v8::Handle<v8::Value> value, v8::Isolate* isolate)
-    {
-        V8ValueStringBuilder builder(isolate);
-        if (!builder.append(value))
-            return String();
-        return builder.toString();
-    }
-
-private:
-    enum {
-        IgnoreNull = 1 << 0,
-        IgnoreUndefined = 1 << 1,
-    };
-
-    V8ValueStringBuilder(v8::Isolate* isolate)
-        : m_arrayLimit(maxArrayItemsLimit)
-        , m_isolate(isolate)
-    {
-    }
-
-    bool append(v8::Handle<v8::Value> value, unsigned ignoreOptions = 0)
-    {
-        if (value.IsEmpty())
-            return true;
-        if ((ignoreOptions & IgnoreNull) && value->IsNull())
-            return true;
-        if ((ignoreOptions & IgnoreUndefined) && value->IsUndefined())
-            return true;
-        if (value->IsString())
-            return append(v8::Handle<v8::String>::Cast(value));
-        if (value->IsStringObject())
-            return append(v8::Handle<v8::StringObject>::Cast(value)->ValueOf());
-        if (value->IsSymbol())
-            return append(v8::Handle<v8::Symbol>::Cast(value));
-        if (value->IsSymbolObject())
-            return append(v8::Handle<v8::SymbolObject>::Cast(value)->ValueOf());
-        if (value->IsNumberObject()) {
-            m_builder.appendNumber(v8::Handle<v8::NumberObject>::Cast(value)->ValueOf());
-            return true;
-        }
-        if (value->IsBooleanObject()) {
-            m_builder.append(v8::Handle<v8::BooleanObject>::Cast(value)->ValueOf() ? "true" : "false");
-            return true;
-        }
-        if (value->IsArray())
-            return append(v8::Handle<v8::Array>::Cast(value));
-        if (toDOMWindow(value, m_isolate)) {
-            m_builder.append("[object Window]");
-            return true;
-        }
-        if (value->IsObject()
-            && !value->IsDate()
-            && !value->IsFunction()
-            && !value->IsNativeError()
-            && !value->IsRegExp())
-            return append(v8::Handle<v8::Object>::Cast(value)->ObjectProtoToString());
-        return append(value->ToString());
-    }
-
-    bool append(v8::Handle<v8::Array> array)
-    {
-        if (m_visitedArrays.contains(array))
-            return true;
-        uint32_t length = array->Length();
-        if (length > m_arrayLimit)
-            return false;
-        if (m_visitedArrays.size() > maxStackDepthLimit)
-            return false;
-
-        bool result = true;
-        m_arrayLimit -= length;
-        m_visitedArrays.append(array);
-        for (uint32_t i = 0; i < length; ++i) {
-            if (i)
-                m_builder.append(',');
-            if (!append(array->Get(i), IgnoreNull | IgnoreUndefined)) {
-                result = false;
-                break;
-            }
-        }
-        m_visitedArrays.removeLast();
-        return result;
-    }
-
-    bool append(v8::Handle<v8::Symbol> symbol)
-    {
-        m_builder.appendLiteral("Symbol(");
-        bool result = append(symbol->Name(), IgnoreUndefined);
-        m_builder.append(')');
-        return result;
-    }
-
-    bool append(v8::Handle<v8::String> string)
-    {
-        if (m_tryCatch.HasCaught())
-            return false;
-        if (!string.IsEmpty())
-            m_builder.append(toCoreString(string));
-        return true;
-    }
-
-    String toString()
-    {
-        if (m_tryCatch.HasCaught())
-            return String();
-        return m_builder.toString();
-    }
-
-    uint32_t m_arrayLimit;
-    v8::Isolate* m_isolate;
-    StringBuilder m_builder;
-    Vector<v8::Handle<v8::Array> > m_visitedArrays;
-    v8::TryCatch m_tryCatch;
-};
-
-} // namespace
-
-DEFINE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(ScriptArguments)
-
-PassRefPtr<ScriptArguments> ScriptArguments::create(ScriptState* scriptState, Vector<ScriptValue>& arguments)
-{
-    return adoptRef(new ScriptArguments(scriptState, arguments));
-}
-
-ScriptArguments::ScriptArguments(ScriptState* scriptState, Vector<ScriptValue>& arguments)
-    : m_scriptState(scriptState)
-{
-    m_arguments.swap(arguments);
-}
-
-const ScriptValue &ScriptArguments::argumentAt(size_t index) const
-{
-    ASSERT(m_arguments.size() > index);
-    return m_arguments[index];
-}
-
-bool ScriptArguments::getFirstArgumentAsString(String& result, bool checkForNullOrUndefined)
-{
-    if (!argumentCount())
-        return false;
-
-    const ScriptValue& value = argumentAt(0);
-    ScriptState::Scope scope(m_scriptState.get());
-    if (checkForNullOrUndefined && (value.isNull() || value.isUndefined()))
-        return false;
-
-    result = V8ValueStringBuilder::toString(value.v8Value(), value.isolate());
-    return true;
-}
-
-} // namespace blink