--- /dev/null
+/*******************************************************************************
+ * 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.ast;
+
+import org.eclipse.jdt.internal.compiler.ASTVisitor;
+import org.eclipse.jdt.internal.compiler.lookup.BlockScope;
+
+/**
+ * Flatten string literal
+ */
+public class StringLiteralConcatenation extends StringLiteral {
+ private static final int INITIAL_SIZE = 5;
+ public StringLiteral[] literals;
+ public int counter;
+ /**
+ * Build a two-strings literal
+ * */
+ public StringLiteralConcatenation(StringLiteral str1, StringLiteral str2) {
+ super(str1.sourceStart, str1.sourceEnd);
+ this.source = str1.source;
+ this.literals = new StringLiteral[INITIAL_SIZE];
+ this.counter = 0;
+ this.literals[this.counter++] = str1;
+ extendsWith(str2);
+ }
+
+ /**
+ * Add the lit source to mine, just as if it was mine
+ */
+ public StringLiteralConcatenation extendsWith(StringLiteral lit) {
+ this.sourceEnd = lit.sourceEnd;
+ final int literalsLength = this.literals.length;
+ if (this.counter == literalsLength) {
+ // resize
+ System.arraycopy(this.literals, 0, this.literals = new StringLiteral[literalsLength + INITIAL_SIZE], 0, literalsLength);
+ }
+ //uddate the source
+ int length = source.length;
+ System.arraycopy(
+ source,
+ 0,
+ source = new char[length + lit.source.length],
+ 0,
+ length);
+ System.arraycopy(lit.source, 0, source, length, lit.source.length);
+ this.literals[this.counter++] = lit;
+ return this;
+ }
+
+ public StringBuffer printExpression(int indent, StringBuffer output) {
+ output.append("StringLiteralConcatenation{"); //$NON-NLS-1$
+ for (int i = 0, max = this.counter; i < max; i++) {
+ this.literals[i].printExpression(indent, output);
+ output.append("+\n");//$NON-NLS-1$
+ }
+ return output.append('}');
+ }
+
+ public char[] source() {
+ return source;
+ }
+
+ public void traverse(ASTVisitor visitor, BlockScope scope) {
+ if (visitor.visit(this, scope)) {
+ for (int i = 0, max = this.counter; i < max; i++) {
+ this.literals[i].traverse(visitor, scope);
+ }
+ }
+ visitor.endVisit(this, scope);
+ }
+}