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/*
 * Copyright (C) 2016 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 "Annotation.h"
#include "Coordinator.h"
#include "Interface.h"
#include "Method.h"
#include "Scope.h"

#include <hidl-util/Formatter.h>
#include <android-base/logging.h>
#include <string>
#include <vector>

namespace android {

void AST::emitVtsTypeDeclarations(Formatter& out) const {
    if (AST::isInterface()) {
        const Interface* iface = mRootScope.getInterface();
        return iface->emitVtsAttributeDeclaration(out);
    }

    for (const auto& type : mRootScope.getSubTypes()) {
        // Skip for TypeDef as it is just an alias of a defined type.
        if (type->isTypeDef()) {
            continue;
        }
        out << "attribute: {\n";
        out.indent();
        type->emitVtsTypeDeclarations(out);
        out.unindent();
        out << "}\n\n";
    }
}

void AST::generateVts(Formatter& out) const {
    std::string baseName = AST::getBaseName();
    const Interface *iface = AST::getInterface();

    out << "component_class: HAL_HIDL\n";
    out << "component_name: \"" << (iface ? iface->definedName() : "types") << "\"\n\n";

    out << "component_type_version_major: " << mPackage.getPackageMajorVersion() << "\n";
    out << "component_type_version_minor: " << mPackage.getPackageMinorVersion() << "\n";
    out << "package: \"" << mPackage.package() << "\"\n\n";

    // Generate import statement for all imported interface/types.
    std::set<FQName> allImportedNames;
    getAllImportedNames(&allImportedNames);
    for (const auto &name : allImportedNames) {
        // ignore IBase.
        if (name != gIBaseFqName) {
            out << "import: \"" << name.string() << "\"\n";
        }
    }

    out << "\n";

    if (isInterface()) {
        const Interface* iface = mRootScope.getInterface();
        out << "interface: {\n";
        out.indent();

        // Generate all the attribute declarations first.
        emitVtsTypeDeclarations(out);

        // Generate all the method declarations.
        for (const Interface* superInterface : iface->superTypeChain()) {
            superInterface->emitVtsMethodDeclaration(out, true /*isInhereted*/);
        }

        iface->emitVtsMethodDeclaration(out, false /*isInhereted*/);
        out.unindent();
        out << "}\n";
    } else {
        emitVtsTypeDeclarations(out);
    }
}

}  // namespace android