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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_JAVA_CLASSDEFINITION_H
#define AAPT_JAVA_CLASSDEFINITION_H
#include "Resource.h"
#include "java/AnnotationProcessor.h"
#include "util/StringPiece.h"
#include "util/Util.h"
#include <sstream>
#include <string>
namespace aapt {
struct ClassDefinitionWriterOptions {
bool useFinalQualifier = false;
bool forceCreationIfEmpty = false;
};
/**
* Writes a class for use in R.java or Manifest.java.
*/
class ClassDefinitionWriter {
public:
ClassDefinitionWriter(const StringPiece& name, const ClassDefinitionWriterOptions& options) :
mName(name.toString()), mOptions(options), mStarted(false) {
}
ClassDefinitionWriter(const StringPiece16& name, const ClassDefinitionWriterOptions& options) :
mName(util::utf16ToUtf8(name)), mOptions(options), mStarted(false) {
}
void addIntMember(const StringPiece& name, AnnotationProcessor* processor,
const uint32_t val) {
ensureClassDeclaration();
if (processor) {
processor->writeToStream(&mOut, kIndent);
}
mOut << kIndent << "public static " << (mOptions.useFinalQualifier ? "final " : "")
<< "int " << name << "=" << val << ";\n";
}
void addStringMember(const StringPiece16& name, AnnotationProcessor* processor,
const StringPiece16& val) {
ensureClassDeclaration();
if (processor) {
processor->writeToStream(&mOut, kIndent);
}
mOut << kIndent << "public static " << (mOptions.useFinalQualifier ? "final " : "")
<< "String " << name << "=\"" << val << "\";\n";
}
void addResourceMember(const StringPiece16& name, AnnotationProcessor* processor,
const ResourceId id) {
ensureClassDeclaration();
if (processor) {
processor->writeToStream(&mOut, kIndent);
}
mOut << kIndent << "public static " << (mOptions.useFinalQualifier ? "final " : "")
<< "int " << name << "=" << id <<";\n";
}
template <typename Iterator, typename FieldAccessorFunc>
void addArrayMember(const StringPiece16& name, AnnotationProcessor* processor,
const Iterator begin, const Iterator end, FieldAccessorFunc f) {
ensureClassDeclaration();
if (processor) {
processor->writeToStream(&mOut, kIndent);
}
mOut << kIndent << "public static final int[] " << name << "={";
for (Iterator current = begin; current != end; ++current) {
if (std::distance(begin, current) % kAttribsPerLine == 0) {
mOut << "\n" << kIndent << kIndent;
}
mOut << f(*current);
if (std::distance(current, end) > 1) {
mOut << ", ";
}
}
mOut << "\n" << kIndent <<"};\n";
}
void writeToStream(std::ostream* out, const StringPiece& prefix,
AnnotationProcessor* processor=nullptr) {
if (mOptions.forceCreationIfEmpty) {
ensureClassDeclaration();
}
if (!mStarted) {
return;
}
if (processor) {
processor->writeToStream(out, prefix);
}
std::string result = mOut.str();
for (StringPiece line : util::tokenize<char>(result, '\n')) {
*out << prefix << line << "\n";
}
*out << prefix << "}\n";
}
private:
constexpr static const char* kIndent = " ";
// The number of attributes to emit per line in a Styleable array.
constexpr static size_t kAttribsPerLine = 4;
void ensureClassDeclaration() {
if (!mStarted) {
mStarted = true;
mOut << "public static final class " << mName << " {\n";
}
}
std::stringstream mOut;
std::string mName;
ClassDefinitionWriterOptions mOptions;
bool mStarted;
};
} // namespace aapt
#endif /* AAPT_JAVA_CLASSDEFINITION_H */
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