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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "util/Maybe.h"
#include "util/Util.h"
#include "xml/XmlUtil.h"
#include <string>
namespace aapt {
namespace xml {
Maybe<ExtractedPackage> extractPackageFromNamespace(const std::u16string& namespaceUri) {
if (util::stringStartsWith<char16_t>(namespaceUri, kSchemaPublicPrefix)) {
StringPiece16 schemaPrefix = kSchemaPublicPrefix;
StringPiece16 package = namespaceUri;
package = package.substr(schemaPrefix.size(), package.size() - schemaPrefix.size());
if (package.empty()) {
return {};
}
return ExtractedPackage{ package.toString(), false /* isPrivate */ };
} else if (util::stringStartsWith<char16_t>(namespaceUri, kSchemaPrivatePrefix)) {
StringPiece16 schemaPrefix = kSchemaPrivatePrefix;
StringPiece16 package = namespaceUri;
package = package.substr(schemaPrefix.size(), package.size() - schemaPrefix.size());
if (package.empty()) {
return {};
}
return ExtractedPackage{ package.toString(), true /* isPrivate */ };
} else if (namespaceUri == kSchemaAuto) {
return ExtractedPackage{ std::u16string(), true /* isPrivate */ };
}
return {};
}
void transformReferenceFromNamespace(IPackageDeclStack* declStack,
const StringPiece16& localPackage, Reference* inRef) {
if (inRef->name) {
if (Maybe<ExtractedPackage> transformedPackage =
declStack->transformPackageAlias(inRef->name.value().package, localPackage)) {
ExtractedPackage& extractedPackage = transformedPackage.value();
inRef->name.value().package = std::move(extractedPackage.package);
// If the reference was already private (with a * prefix) and the namespace is public,
// we keep the reference private.
inRef->privateReference |= extractedPackage.privateNamespace;
}
}
}
} // namespace xml
} // namespace aapt
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