1/*******************************************************************************
2 * Copyright (c) 2009, 2018 Mountainminds GmbH & Co. KG and Contributors
3 * All rights reserved. This program and the accompanying materials
4 * are made available under the terms of the Eclipse Public License v1.0
5 * which accompanies this distribution, and is available at
6 * http://www.eclipse.org/legal/epl-v10.html
7 *
8 * Contributors:
9 *    Marc R. Hoffmann - initial API and implementation
10 *
11 *******************************************************************************/
12package org.jacoco.core.internal.instr;
13
14import org.jacoco.core.runtime.IExecutionDataAccessorGenerator;
15import org.objectweb.asm.ClassVisitor;
16import org.objectweb.asm.MethodVisitor;
17import org.objectweb.asm.Opcodes;
18
19/**
20 * The strategy for interfaces inlines the runtime access directly into the
21 * methods as this is the only method without keeping reference within this
22 * class. This is very inefficient as the runtime is contacted for every method
23 * invocation and therefore only used for static initializers in interfaces.
24 */
25class LocalProbeArrayStrategy implements IProbeArrayStrategy {
26
27	private final String className;
28	private final long classId;
29	private final int probeCount;
30	private final IExecutionDataAccessorGenerator accessorGenerator;
31
32	LocalProbeArrayStrategy(final String className, final long classId,
33			final int probeCount,
34			final IExecutionDataAccessorGenerator accessorGenerator) {
35		this.className = className;
36		this.classId = classId;
37		this.probeCount = probeCount;
38		this.accessorGenerator = accessorGenerator;
39	}
40
41	public int storeInstance(final MethodVisitor mv, final boolean clinit,
42			final int variable) {
43		final int maxStack = accessorGenerator.generateDataAccessor(classId,
44				className, probeCount, mv);
45		mv.visitVarInsn(Opcodes.ASTORE, variable);
46		return maxStack;
47	}
48
49	public void addMembers(final ClassVisitor delegate, final int probeCount) {
50		// nothing to do
51	}
52
53}