src/third_party/blink/Source/bindings/modules/v8/custom/V8SQLResultSetRowListCustom.cpp

/*
 * Copyright (C) 2009 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
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 * 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
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "config.h"
#include "bindings/modules/v8/V8SQLResultSetRowList.h"

#include "bindings/core/v8/ExceptionMessages.h"
#include "bindings/core/v8/ExceptionState.h"
#include "bindings/core/v8/V8Binding.h"
#include "core/dom/ExceptionCode.h"
#include "modules/webdatabase/SQLResultSetRowList.h"

namespace blink {

void V8SQLResultSetRowList::itemMethodCustom(const v8::FunctionCallbackInfo<v8::Value>& info)
{
    ExceptionState exceptionState(ExceptionState::ExecutionContext, "item", "SQLResultSetRowList", info.Holder(), info.GetIsolate());
    if (!info.Length()) {
        exceptionState.throwDOMException(SyntaxError, ExceptionMessages::notEnoughArguments(1, 0));
        exceptionState.throwIfNeeded();
        return;
    }

    if (!info[0]->IsNumber()) {
        exceptionState.throwTypeError("The index provided is not a number.");
        exceptionState.throwIfNeeded();
        return;
    }

    SQLResultSetRowList* rowList = V8SQLResultSetRowList::toImpl(info.Holder());

    unsigned long index = info[0]->IntegerValue();
    if (index >= rowList->length()) {
        exceptionState.throwDOMException(IndexSizeError, ExceptionMessages::indexExceedsMaximumBound<unsigned>("index", index, rowList->length()));
        exceptionState.throwIfNeeded();
        return;
    }

    v8::Local<v8::Object> item = v8::Object::New(info.GetIsolate());
    unsigned numColumns = rowList->columnNames().size();
    unsigned valuesIndex = index * numColumns;

    for (unsigned i = 0; i < numColumns; ++i) {
        const SQLValue& sqlValue = rowList->values()[valuesIndex + i];
        v8::Local<v8::Value> value;
        switch (sqlValue.type()) {
        case SQLValue::StringValue:
            value = v8String(info.GetIsolate(), sqlValue.string());
            break;
        case SQLValue::NullValue:
            value = v8::Null(info.GetIsolate());
            break;
        case SQLValue::NumberValue:
            value = v8::Number::New(info.GetIsolate(), sqlValue.number());
            break;
        default:
            ASSERT_NOT_REACHED();
        }

        item->ForceSet(v8String(info.GetIsolate(), rowList->columnNames()[i]), value, static_cast<v8::PropertyAttribute>(v8::DontDelete | v8::ReadOnly));
    }

    v8SetReturnValue(info, item);
}

} // namespace blink