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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_RESOURCE_H
#define AAPT_RESOURCE_H
#include <iomanip>
#include <limits>
#include <sstream>
#include <string>
#include <tuple>
#include <vector>
#include "androidfw/ConfigDescription.h"
#include "androidfw/StringPiece.h"
#include "utils/JenkinsHash.h"
#include "Source.h"
namespace aapt {
/**
* The various types of resource types available. Corresponds
* to the 'type' in package:type/entry.
*/
enum class ResourceType {
kAnim,
kAnimator,
kArray,
kAttr,
kAttrPrivate,
kBool,
kColor,
// Not really a type, but it shows up in some CTS tests and
// we need to continue respecting it.
kConfigVarying,
kDimen,
kDrawable,
kFont,
kFraction,
kId,
kInteger,
kInterpolator,
kLayout,
kMenu,
kMipmap,
kNavigation,
kPlurals,
kRaw,
kString,
kStyle,
kStyleable,
kTransition,
// Not a parsed type. It is only used when loading resource tables that may have modified type
// names
kUnknown,
kXml,
};
android::StringPiece to_string(ResourceType type);
/**
* Returns a pointer to a valid ResourceType, or nullptr if the string was invalid.
*/
const ResourceType* ParseResourceType(const android::StringPiece& str);
/**
* A resource's name. This can uniquely identify
* a resource in the ResourceTable.
*/
struct ResourceName {
std::string package;
ResourceType type = ResourceType::kRaw;
std::string entry;
ResourceName() = default;
ResourceName(const android::StringPiece& p, ResourceType t, const android::StringPiece& e);
int compare(const ResourceName& other) const;
bool is_valid() const;
std::string to_string() const;
};
/**
* Same as ResourceName, but uses StringPieces instead.
* Use this if you need to avoid copying and know that
* the lifetime of this object is shorter than that
* of the original string.
*/
struct ResourceNameRef {
android::StringPiece package;
ResourceType type = ResourceType::kRaw;
android::StringPiece entry;
ResourceNameRef() = default;
ResourceNameRef(const ResourceNameRef&) = default;
ResourceNameRef(ResourceNameRef&&) = default;
ResourceNameRef(const ResourceName& rhs); // NOLINT(google-explicit-constructor)
ResourceNameRef(const android::StringPiece& p, ResourceType t, const android::StringPiece& e);
ResourceNameRef& operator=(const ResourceNameRef& rhs) = default;
ResourceNameRef& operator=(ResourceNameRef&& rhs) = default;
ResourceNameRef& operator=(const ResourceName& rhs);
bool is_valid() const;
ResourceName ToResourceName() const;
std::string to_string() const;
};
constexpr const uint8_t kAppPackageId = 0x7fu;
constexpr const uint8_t kFrameworkPackageId = 0x01u;
/**
* A binary identifier representing a resource. Internally it
* is a 32bit integer split as follows:
*
* 0xPPTTEEEE
*
* PP: 8 bit package identifier. 0x01 is reserved for system
* and 0x7f is reserved for the running app.
* TT: 8 bit type identifier. 0x00 is invalid.
* EEEE: 16 bit entry identifier.
*/
struct ResourceId {
uint32_t id;
ResourceId();
ResourceId(const ResourceId& rhs);
ResourceId(uint32_t res_id); // NOLINT(google-explicit-constructor)
ResourceId(uint8_t p, uint8_t t, uint16_t e);
// Returns true if the ID is a valid ID that is not dynamic (package ID cannot be 0)
bool is_valid_static() const;
// Returns true if the ID is a valid ID or dynamic ID (package ID can be 0).
bool is_valid() const;
uint8_t package_id() const;
uint8_t type_id() const;
uint16_t entry_id() const;
std::string to_string() const;
};
struct SourcedResourceName {
ResourceName name;
size_t line;
};
struct ResourceFile {
enum class Type {
kUnknown,
kPng,
kBinaryXml,
kProtoXml,
};
// Name
ResourceName name;
// Configuration
android::ConfigDescription config;
// Type
Type type;
// Source
Source source;
// Exported symbols
std::vector<SourcedResourceName> exported_symbols;
};
/**
* Useful struct used as a key to represent a unique resource in associative
* containers.
*/
struct ResourceKey {
ResourceName name;
android::ConfigDescription config;
};
bool operator<(const ResourceKey& a, const ResourceKey& b);
/**
* Useful struct used as a key to represent a unique resource in associative
* containers.
* Holds a reference to the name, so that name better live longer than this key!
*/
struct ResourceKeyRef {
ResourceNameRef name;
android::ConfigDescription config;
ResourceKeyRef() = default;
ResourceKeyRef(const ResourceNameRef& n, const android::ConfigDescription& c)
: name(n), config(c) {}
/**
* Prevent taking a reference to a temporary. This is bad.
*/
ResourceKeyRef(ResourceName&& n, const android::ConfigDescription& c) = delete;
};
bool operator<(const ResourceKeyRef& a, const ResourceKeyRef& b);
//
// ResourceId implementation.
//
inline ResourceId::ResourceId() : id(0) {}
inline ResourceId::ResourceId(const ResourceId& rhs) : id(rhs.id) {}
inline ResourceId::ResourceId(uint32_t res_id) : id(res_id) {}
inline ResourceId::ResourceId(uint8_t p, uint8_t t, uint16_t e)
: id((p << 24) | (t << 16) | e) {}
inline bool ResourceId::is_valid_static() const {
return (id & 0xff000000u) != 0 && (id & 0x00ff0000u) != 0;
}
inline bool ResourceId::is_valid() const {
return (id & 0x00ff0000u) != 0;
}
inline uint8_t ResourceId::package_id() const {
return static_cast<uint8_t>(id >> 24);
}
inline uint8_t ResourceId::type_id() const {
return static_cast<uint8_t>(id >> 16);
}
inline uint16_t ResourceId::entry_id() const {
return static_cast<uint16_t>(id);
}
inline bool operator<(const ResourceId& lhs, const ResourceId& rhs) {
return lhs.id < rhs.id;
}
inline bool operator>(const ResourceId& lhs, const ResourceId& rhs) {
return lhs.id > rhs.id;
}
inline bool operator==(const ResourceId& lhs, const ResourceId& rhs) {
return lhs.id == rhs.id;
}
inline bool operator!=(const ResourceId& lhs, const ResourceId& rhs) {
return lhs.id != rhs.id;
}
inline ::std::ostream& operator<<(::std::ostream& out, const ResourceId& res_id) {
return out << res_id.to_string();
}
// For generic code to call 'using std::to_string; to_string(T);'.
inline std::string to_string(const ResourceId& id) {
return id.to_string();
}
//
// ResourceType implementation.
//
inline ::std::ostream& operator<<(::std::ostream& out, const ResourceType& val) {
return out << to_string(val);
}
//
// ResourceName implementation.
//
inline ResourceName::ResourceName(const android::StringPiece& p, ResourceType t,
const android::StringPiece& e)
: package(p.to_string()), type(t), entry(e.to_string()) {}
inline int ResourceName::compare(const ResourceName& other) const {
int cmp = package.compare(other.package);
if (cmp != 0) return cmp;
cmp = static_cast<int>(type) - static_cast<int>(other.type);
if (cmp != 0) return cmp;
cmp = entry.compare(other.entry);
return cmp;
}
inline bool ResourceName::is_valid() const {
return !package.empty() && !entry.empty();
}
inline bool operator<(const ResourceName& lhs, const ResourceName& rhs) {
return std::tie(lhs.package, lhs.type, lhs.entry) <
std::tie(rhs.package, rhs.type, rhs.entry);
}
inline bool operator==(const ResourceName& lhs, const ResourceName& rhs) {
return std::tie(lhs.package, lhs.type, lhs.entry) ==
std::tie(rhs.package, rhs.type, rhs.entry);
}
inline bool operator!=(const ResourceName& lhs, const ResourceName& rhs) {
return std::tie(lhs.package, lhs.type, lhs.entry) !=
std::tie(rhs.package, rhs.type, rhs.entry);
}
inline ::std::ostream& operator<<(::std::ostream& out, const ResourceName& name) {
return out << name.to_string();
}
//
// ResourceNameRef implementation.
//
inline ResourceNameRef::ResourceNameRef(const ResourceName& rhs)
: package(rhs.package), type(rhs.type), entry(rhs.entry) {}
inline ResourceNameRef::ResourceNameRef(const android::StringPiece& p, ResourceType t,
const android::StringPiece& e)
: package(p), type(t), entry(e) {}
inline ResourceNameRef& ResourceNameRef::operator=(const ResourceName& rhs) {
package = rhs.package;
type = rhs.type;
entry = rhs.entry;
return *this;
}
inline ResourceName ResourceNameRef::ToResourceName() const {
return ResourceName(package, type, entry);
}
inline bool ResourceNameRef::is_valid() const {
return !package.empty() && !entry.empty();
}
inline bool operator<(const ResourceNameRef& lhs, const ResourceNameRef& rhs) {
return std::tie(lhs.package, lhs.type, lhs.entry) <
std::tie(rhs.package, rhs.type, rhs.entry);
}
inline bool operator==(const ResourceNameRef& lhs, const ResourceNameRef& rhs) {
return std::tie(lhs.package, lhs.type, lhs.entry) ==
std::tie(rhs.package, rhs.type, rhs.entry);
}
inline bool operator!=(const ResourceNameRef& lhs, const ResourceNameRef& rhs) {
return std::tie(lhs.package, lhs.type, lhs.entry) !=
std::tie(rhs.package, rhs.type, rhs.entry);
}
inline ::std::ostream& operator<<(::std::ostream& out, const ResourceNameRef& name) {
return out << name.to_string();
}
inline bool operator<(const ResourceName& lhs, const ResourceNameRef& b) {
return ResourceNameRef(lhs) < b;
}
inline bool operator!=(const ResourceName& lhs, const ResourceNameRef& rhs) {
return ResourceNameRef(lhs) != rhs;
}
inline bool operator==(const SourcedResourceName& lhs, const SourcedResourceName& rhs) {
return lhs.name == rhs.name && lhs.line == rhs.line;
}
} // namespace aapt
namespace std {
template <>
struct hash<aapt::ResourceName> {
size_t operator()(const aapt::ResourceName& name) const {
android::hash_t h = 0;
h = android::JenkinsHashMix(h, static_cast<uint32_t>(hash<string>()(name.package)));
h = android::JenkinsHashMix(h, static_cast<uint32_t>(name.type));
h = android::JenkinsHashMix(h, static_cast<uint32_t>(hash<string>()(name.entry)));
return static_cast<size_t>(h);
}
};
template <>
struct hash<aapt::ResourceId> {
size_t operator()(const aapt::ResourceId& id) const {
return id.id;
}
};
} // namespace std
#endif // AAPT_RESOURCE_H