com.android.utils.AsmUtils Maven / Gradle / Ivy

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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.
 */

package com.android.utils;

import com.android.annotations.NonNull;
import com.google.common.base.Preconditions;

/**
 * Utilities for working with ASM.
 */
public class AsmUtils {
    private AsmUtils() {}

    public static final String CONSTRUCTOR = "";
    public static final String CLASS_INITIALIZER = "";

    /**
     * Converts a class name from the Java language naming convention (foo.bar.baz) to the JVM
     * internal naming convention (foo/bar/baz).
     */
    @NonNull
    public static String toInternalName(@NonNull String className) {
        return className.replace('.', '/');
    }

    /**
     * Gets the class name from a class member internal name, like {@code com/foo/Bar.baz:(I)V}.
     */
    @NonNull
    public static String getClassName(@NonNull String memberName) {
        Preconditions.checkArgument(memberName.contains("."), "Class name passed as argument.");
        return memberName.substring(0, memberName.indexOf('.'));
    }
}