ASTASDeclarationStatement.java

/*
 * ASTASDeclarationStatement.java
 * 
 * Copyright (c) 2008 David Holroyd
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package uk.co.badgersinfoil.metaas.impl;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.asdt.core.internal.antlr.AS3Parser;
import uk.co.badgersinfoil.metaas.dom.ASDeclarationStatement;
import uk.co.badgersinfoil.metaas.dom.Expression;
import uk.co.badgersinfoil.metaas.dom.ASVarDeclarationFragment;
import uk.co.badgersinfoil.metaas.impl.antlr.LinkedListTree;


public class ASTASDeclarationStatement extends ASTScriptElement implements ASDeclarationStatement {

	public ASTASDeclarationStatement(LinkedListTree ast) {
		super(ast);
	}

	public boolean isConstant() {
		return ast.getType() == AS3Parser.CONST;
	}

	public void setConstant(boolean constant) {
		if (constant) {
			ast.token.setType(AS3Parser.CONST);
			ast.token.setText("const");
		} else {
			ast.token.setType(AS3Parser.VAR);
			ast.token.setText("var");
		}
	}

	public Expression getFirstVarInitializer() {
		return firstVar().getInitializer();
	}

	public String getFirstVarName() {
		return firstVar().getName();
	}

	public String getFirstVarTypeName() {
		return firstVar().getTypeName();
	}

	public List getVars() {
		List results = new ArrayList();
		for (ASTIterator i = new ASTIterator(ast); i.hasNext(); ) {
			results.add(build(i.next()));
		}
		return Collections.unmodifiableList(results);
	}

	private ASVarDeclarationFragment firstVar() {
		return build(ast.getFirstChild());
	}

	private ASVarDeclarationFragment build(LinkedListTree varDecl) {
		return new ASTASVarDeclarationFragment(varDecl);
	}
}