org.aspectj.org.eclipse.jdt.internal.compiler.ast.StringLiteralConcatenation Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of aspectjtools Show documentation

AspectJ tools most notably contains the AspectJ compiler (AJC). AJC applies aspects to Java classes during compilation, fully replacing Javac for plain Java classes and also compiling native AspectJ or annotation-based @AspectJ syntax. Furthermore, AJC can weave aspects into existing class files in a post-compile binary weaving step. This library is a superset of AspectJ weaver and hence also of AspectJ runtime.

There is a newer version: 1.9.22.1

Show newest version

/*******************************************************************************
 * Copyright (c) 2000, 2009 IBM Corporation and others.
 *
 * This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License 2.0
 * which accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.aspectj.org.eclipse.jdt.internal.compiler.ast;

import org.aspectj.org.eclipse.jdt.internal.compiler.ASTVisitor;
import org.aspectj.org.eclipse.jdt.internal.compiler.lookup.BlockScope;

/**
 * Flatten string literal
 */
public class StringLiteralConcatenation extends StringLiteral {
	private static final int INITIAL_SIZE = 5;
	public Expression[] 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
	 */
	@Override
	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 = this.source.length;
		System.arraycopy(
			this.source,
			0,
			this.source = new char[length + lit.source.length],
			0,
			length);
		System.arraycopy(lit.source, 0, this.source, length, lit.source.length);
		this.literals[this.counter++] = lit;
		return this;
	}

	@Override
	public StringBuilder printExpression(int indent, StringBuilder 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('}');
	}

	@Override
	public char[] source() {
		return this.source;
	}

	@Override
	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);
	}
}