org.jacoco.core.internal.instr.LocalProbeArrayStrategy.java Source code

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Here is the source code for org.jacoco.core.internal.instr.LocalProbeArrayStrategy.java

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/*******************************************************************************
 * Copyright (c) 2009, 2019 Mountainminds GmbH & Co. KG and Contributors
 * This program and the accompanying materials are made available under
 * the terms of the Eclipse Public License 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *    Marc R. Hoffmann - initial API and implementation
 *
 *******************************************************************************/
package org.jacoco.core.internal.instr;

import org.jacoco.core.runtime.IExecutionDataAccessorGenerator;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;

/**
 * The strategy for interfaces inlines the runtime access directly into the
 * methods as this is the only method without keeping reference within this
 * class. This is very inefficient as the runtime is contacted for every method
 * invocation and therefore only used for static initializers in interfaces.
 */
class LocalProbeArrayStrategy implements IProbeArrayStrategy {

    private final String className;
    private final long classId;
    private final int probeCount;
    private final IExecutionDataAccessorGenerator accessorGenerator;

    LocalProbeArrayStrategy(final String className, final long classId, final int probeCount,
            final IExecutionDataAccessorGenerator accessorGenerator) {
        this.className = className;
        this.classId = classId;
        this.probeCount = probeCount;
        this.accessorGenerator = accessorGenerator;
    }

    public int storeInstance(final MethodVisitor mv, final boolean clinit, final int variable) {
        final int maxStack = accessorGenerator.generateDataAccessor(classId, className, probeCount, mv);
        mv.visitVarInsn(Opcodes.ASTORE, variable);
        return maxStack;
    }

    public void addMembers(final ClassVisitor delegate, final int probeCount) {
        // nothing to do
    }

}