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/*
* Copyright (C) 2019 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 "AST.h"
#include "Interface.h"
#include "Method.h"
namespace android {
void AST::generateJavaImpl(Formatter& out) const {
if (!AST::isInterface()) {
// types.hal does not get a stub header.
return;
}
const Interface* iface = mRootScope.getInterface();
const std::string baseName = iface->getBaseName();
out << "// FIXME: your file license if you have one\n\n";
out << "// FIXME: add package information\n\n";
out << "import " << mPackage.javaPackage() << "." << iface->definedName() << ";\n\n";
out << "class " << baseName << " extends " << iface->definedName() << ".Stub"
<< " {\n";
out.indent([&] {
const Interface* prevInterface = nullptr;
for (const auto& tuple : iface->allMethodsFromRoot()) {
const Method* method = tuple.method();
if (method->isHidlReserved()) {
continue;
}
const Interface* superInterface = tuple.interface();
if (prevInterface != superInterface) {
out << "// Methods from " << superInterface->fullJavaName() << " follow.\n";
prevInterface = superInterface;
}
out << "@Override\npublic ";
method->emitJavaSignature(out);
out << "\n";
out.indent([&] {
out.indent();
out << "throws android.os.RemoteException {\n";
out.unindent();
out << "// TODO: Implement\n";
// Return the appropriate value
const bool returnsValue = !method->results().empty();
if (returnsValue) {
for (const auto& arg : method->results()) {
arg->type().emitJavaFieldInitializer(out, arg->name());
}
const bool needsCallback = method->results().size() > 1;
if (needsCallback) {
out << "_hidl_cb.onValues(";
out.join(method->results().begin(), method->results().end(), ", ",
[&](auto& arg) { out << arg->name(); });
out << ");\n";
} else {
// only 1 value is returned
out << "return " << method->results().at(0)->name() << ";\n";
}
}
});
out << "}\n\n";
}
});
out << "}\n";
}
} // namespace android