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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.
*/
#ifndef AAPT_PROGUARD_RULES_H
#define AAPT_PROGUARD_RULES_H
#include <map>
#include <ostream>
#include <set>
#include <string>
#include "androidfw/StringPiece.h"
#include "Resource.h"
#include "ResourceTable.h"
#include "Source.h"
#include "ValueVisitor.h"
#include "io/Io.h"
#include "process/IResourceTableConsumer.h"
#include "xml/XmlDom.h"
namespace aapt {
namespace proguard {
struct UsageLocation {
ResourceName name;
Source source;
};
struct NameAndSignature {
std::string name;
std::string signature;
};
class KeepSet {
public:
KeepSet() = default;
explicit KeepSet(bool conditional_keep_rules) : conditional_keep_rules_(conditional_keep_rules) {
}
inline void AddManifestClass(const UsageLocation& file, const std::string& class_name) {
manifest_class_set_[class_name].insert(file);
}
inline void AddConditionalClass(const UsageLocation& file,
const NameAndSignature& class_and_signature) {
conditional_class_set_[class_and_signature].insert(file);
}
inline void AddMethod(const UsageLocation& file, const NameAndSignature& name_and_signature) {
method_set_[name_and_signature].insert(file);
}
inline void AddReference(const UsageLocation& file, const ResourceName& resource_name) {
reference_set_[resource_name].insert(file);
}
private:
friend void WriteKeepSet(const KeepSet& keep_set, io::OutputStream* out, bool minimal_keep,
bool no_location_reference);
friend bool CollectLocations(const UsageLocation& location, const KeepSet& keep_set,
std::set<UsageLocation>* locations);
bool conditional_keep_rules_ = false;
std::map<std::string, std::set<UsageLocation>> manifest_class_set_;
std::map<NameAndSignature, std::set<UsageLocation>> method_set_;
std::map<NameAndSignature, std::set<UsageLocation>> conditional_class_set_;
std::map<ResourceName, std::set<UsageLocation>> reference_set_;
};
bool CollectProguardRulesForManifest(xml::XmlResource* res, KeepSet* keep_set,
bool main_dex_only = false);
bool CollectProguardRules(IAaptContext* context, xml::XmlResource* res, KeepSet* keep_set);
bool CollectResourceReferences(IAaptContext* context, ResourceTable* table, KeepSet* keep_set);
void WriteKeepSet(const KeepSet& keep_set, io::OutputStream* out, bool minimal_keep,
bool no_location_reference);
bool CollectLocations(const UsageLocation& location, const KeepSet& keep_set,
std::set<UsageLocation>* locations);
//
// UsageLocation implementation.
//
inline bool operator==(const UsageLocation& lhs, const UsageLocation& rhs) {
// The "source" member is ignored because we only need "name" for outputting
// keep rules; "source" is used for comments.
return lhs.name == rhs.name;
}
inline bool operator<(const UsageLocation& lhs, const UsageLocation& rhs) {
return lhs.name.compare(rhs.name) < 0;
}
//
// NameAndSignature implementation.
//
inline bool operator<(const NameAndSignature& lhs, const NameAndSignature& rhs) {
if (lhs.name < rhs.name) {
return true;
}
if (lhs.name == rhs.name) {
return lhs.signature < rhs.signature;
}
return false;
}
} // namespace proguard
} // namespace aapt
#endif // AAPT_PROGUARD_RULES_H
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