X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Feclipse%2Fjdt%2Finternal%2Fcompiler%2Fcodegen%2FCaseLabel.java;fp=src%2Forg%2Feclipse%2Fjdt%2Finternal%2Fcompiler%2Fcodegen%2FCaseLabel.java;h=725588ebb3e761eac5f5554dbd8cdef0b63c5f00;hb=040fa5af2cd00017cf3575950cdaade34a6d7f6c;hp=0000000000000000000000000000000000000000;hpb=a580fb8376d315d05e4d6bfdff9ff1101a151cd6;p=org.ibex.tool.git

diff --git a/src/org/eclipse/jdt/internal/compiler/codegen/CaseLabel.java b/src/org/eclipse/jdt/internal/compiler/codegen/CaseLabel.java
new file mode 100644
index 0000000..725588e
--- /dev/null
+++ b/src/org/eclipse/jdt/internal/compiler/codegen/CaseLabel.java
@@ -0,0 +1,81 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2004 IBM Corporation and others.
+ * All rights reserved. This program and the accompanying materials 
+ * are made available under the terms of the Common Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/cpl-v10.html
+ * 
+ * Contributors:
+ *     IBM Corporation - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.jdt.internal.compiler.codegen;
+
+public class CaseLabel extends Label {
+	public int instructionPosition = POS_NOT_SET;
+	public int backwardsBranch = POS_NOT_SET;
+/**
+ * CaseLabel constructor comment.
+ * @param codeStream org.eclipse.jdt.internal.compiler.codegen.CodeStream
+ */
+public CaseLabel(CodeStream codeStream) {
+	super(codeStream);
+}
+/*
+* Put down  a refernece to the array at the location in the codestream.
+*/
+void branch() {
+	if (position == POS_NOT_SET) {
+		addForwardReference(codeStream.position);
+		// Leave 4 bytes free to generate the jump offset afterwards
+		codeStream.position += 4;
+		codeStream.classFileOffset += 4;
+	} else { //Position is set. Write it!
+		codeStream.writeSignedWord(position - codeStream.position + 1);
+	}
+}
+/*
+* Put down  a refernece to the array at the location in the codestream.
+*/
+void branchWide() {
+	if (position == POS_NOT_SET) {
+		addForwardReference(codeStream.position);
+		// Leave 4 bytes free to generate the jump offset afterwards
+		codeStream.position += 4;
+	} else { //Position is set. Write it!
+		codeStream.writeSignedWord(position - codeStream.position + 1);
+	}
+}
+public boolean isStandardLabel(){
+	return false;
+}
+/*
+* Put down  a reference to the array at the location in the codestream.
+*/
+public void place() {
+	position = codeStream.position;
+	if (instructionPosition == POS_NOT_SET)
+		backwardsBranch = position;
+	else {
+		int offset = position - instructionPosition;
+		for (int i = 0; i < forwardReferenceCount; i++) {
+			codeStream.writeSignedWord(forwardReferences[i], offset);
+		}
+		// add the label int the codeStream labels collection
+		codeStream.addLabel(this);
+	}
+}
+/*
+* Put down  a refernece to the array at the location in the codestream.
+*/
+void placeInstruction() {
+	if (instructionPosition == POS_NOT_SET) {
+		instructionPosition = codeStream.position;
+		if (backwardsBranch != POS_NOT_SET) {
+			int offset = backwardsBranch - instructionPosition;
+			for (int i = 0; i < forwardReferenceCount; i++)
+				codeStream.writeSignedWord(forwardReferences[i], offset);
+			backwardsBranch = POS_NOT_SET;
+		}
+	}
+}
+}