/*
 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package org.graalvm.compiler.code;

import static jdk.vm.ci.meta.MetaUtil.identityHashCodeString;

import org.graalvm.compiler.graph.NodeSourcePosition;

This provides a mapping between a half-open range of PCs in the generated code and a NodeSourcePosition in the original program. Depending on the backend this information may be represented in different ways or not at all.
/** * This provides a mapping between a half-open range of PCs in the generated code and a * {@link NodeSourcePosition} in the original program. Depending on the backend this information may * be represented in different ways or not at all. */
public final class SourceMapping { private final int startOffset; private final int endOffset; private final NodeSourcePosition sourcePosition; public SourceMapping(int startOffset, int endOffset, NodeSourcePosition sourcePosition) { this.startOffset = startOffset; this.endOffset = endOffset; this.sourcePosition = sourcePosition; } public int getStartOffset() { return startOffset; } public int getEndOffset() { return endOffset; } public NodeSourcePosition getSourcePosition() { return sourcePosition; } @Override public String toString() { return identityHashCodeString(this); } @Override public int hashCode() { throw new UnsupportedOperationException("hashCode"); } @Override public boolean equals(Object obj) { if (obj instanceof SourceMapping) { SourceMapping other = (SourceMapping) obj; return other.startOffset == startOffset && other.endOffset == endOffset && other.sourcePosition.equals(sourcePosition); } return false; } public boolean contains(int offset) { return startOffset <= offset && offset < endOffset; } }