a6fe345be9
Supports the <add-resource> tag and mimics old AAPT behavior of not allowing new resources defined unless <add-resource> was used or --auto-add-overlay was specified. Change-Id: I9b461137357617ade37fd7045b418b8e6450b9c4
99 lines
2.9 KiB
C++
99 lines
2.9 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef AAPT_NAME_MANGLER_H
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#define AAPT_NAME_MANGLER_H
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#include "Resource.h"
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#include "util/Maybe.h"
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#include <set>
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#include <string>
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namespace aapt {
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struct NameManglerPolicy {
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/**
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* Represents the package we are trying to build. References pointing
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* to this package are not mangled, and mangled references inherit this package name.
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*/
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std::u16string targetPackageName;
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/**
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* We must know which references to mangle, and which to keep (android vs. com.android.support).
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*/
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std::set<std::u16string> packagesToMangle;
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};
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class NameMangler {
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private:
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NameManglerPolicy mPolicy;
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public:
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NameMangler(NameManglerPolicy policy) : mPolicy(policy) {
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}
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Maybe<ResourceName> mangleName(const ResourceName& name) {
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if (mPolicy.targetPackageName == name.package ||
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mPolicy.packagesToMangle.count(name.package) == 0) {
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return {};
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}
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return ResourceName{
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mPolicy.targetPackageName,
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name.type,
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mangleEntry(name.package, name.entry)
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};
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}
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bool shouldMangle(const std::u16string& package) const {
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if (package.empty() || mPolicy.targetPackageName == package) {
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return false;
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}
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return mPolicy.packagesToMangle.count(package) != 0;
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}
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/**
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* Returns a mangled name that is a combination of `name` and `package`.
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* The mangled name should contain symbols that are illegal to define in XML,
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* so that there will never be name mangling collisions.
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*/
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static std::u16string mangleEntry(const std::u16string& package, const std::u16string& name) {
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return package + u"$" + name;
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}
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/**
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* Unmangles the name in `outName`, storing the correct name back in `outName`
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* and the package in `outPackage`. Returns true if the name was unmangled or
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* false if the name was never mangled to begin with.
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*/
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static bool unmangle(std::u16string* outName, std::u16string* outPackage) {
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size_t pivot = outName->find(u'$');
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if (pivot == std::string::npos) {
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return false;
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}
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outPackage->assign(outName->data(), pivot);
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outName->assign(outName->data() + pivot + 1, outName->size() - (pivot + 1));
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return true;
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}
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};
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} // namespace aapt
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#endif // AAPT_NAME_MANGLER_H
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