зеркало из https://github.com/mozilla/gecko-dev.git
83 строки
1.9 KiB
C++
83 строки
1.9 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this file,
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* You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "LSValue.h"
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namespace mozilla {
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namespace dom {
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bool LSValue::InitFromString(const nsAString& aBuffer) {
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MOZ_ASSERT(mBuffer.IsVoid());
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MOZ_ASSERT(!mUTF16Length);
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MOZ_ASSERT(!mCompressed);
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if (aBuffer.IsVoid()) {
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return true;
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}
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nsCString converted;
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if (NS_WARN_IF(!CopyUTF16toUTF8(aBuffer, converted, fallible))) {
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return false;
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}
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nsCString convertedAndCompressed;
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if (NS_WARN_IF(!SnappyCompress(converted, convertedAndCompressed))) {
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return false;
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}
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if (convertedAndCompressed.IsVoid()) {
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mBuffer = converted;
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mUTF16Length = aBuffer.Length();
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} else {
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mBuffer = convertedAndCompressed;
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mUTF16Length = aBuffer.Length();
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mCompressed = true;
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}
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return true;
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}
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nsresult LSValue::InitFromStatement(mozIStorageStatement* aStatement,
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uint32_t aIndex) {
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MOZ_ASSERT(aStatement);
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MOZ_ASSERT(mBuffer.IsVoid());
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MOZ_ASSERT(!mUTF16Length);
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MOZ_ASSERT(!mCompressed);
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nsCString buffer;
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nsresult rv = aStatement->GetUTF8String(aIndex, buffer);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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int32_t utf16Length;
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rv = aStatement->GetInt32(aIndex + 1, &utf16Length);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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int32_t compressed;
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rv = aStatement->GetInt32(aIndex + 2, &compressed);
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if (NS_WARN_IF(NS_FAILED(rv))) {
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return rv;
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}
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mBuffer = buffer;
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mUTF16Length = utf16Length;
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mCompressed = compressed;
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return NS_OK;
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}
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const LSValue& VoidLSValue() {
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static const LSValue sVoidLSValue;
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return sVoidLSValue;
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}
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} // namespace dom
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} // namespace mozilla
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