/*
* ASTASInterfaceType.java
*
* Copyright (c) 2006-2007 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.Collections;
import java.util.LinkedList;
import java.util.List;
import org.asdt.core.internal.antlr.AS3Parser;
import uk.co.badgersinfoil.metaas.dom.ASInterfaceType;
import uk.co.badgersinfoil.metaas.dom.ASMethod;
import uk.co.badgersinfoil.metaas.dom.Visibility;
import uk.co.badgersinfoil.metaas.impl.antlr.LinkedListToken;
import uk.co.badgersinfoil.metaas.impl.antlr.LinkedListTree;
public class ASTASInterfaceType extends ASTASType implements ASInterfaceType {
private static final int EXTENDS_INDEX = 3;
public ASTASInterfaceType(LinkedListTree ast) {
super(ast);
}
public List getSuperInterfaces() {
List results = new LinkedList();
LinkedListTree impls = ASTUtils.findChildByType(ast, AS3Parser.EXTENDS);
if (impls != null) {
for (ASTIterator i=new ASTIterator(impls); i.hasNext(); ) {
results.add(ASTUtils.identText(i.next()));
}
}
return Collections.unmodifiableList(results);
}
public void addSuperInterface(String interfaceName) {
LinkedListTree iface = AS3FragmentParser.parseIdent(interfaceName);
LinkedListTree ext = ASTUtils.findChildByType(ast, AS3Parser.EXTENDS);
if (ext == null) {
ext = ASTUtils.newAST(AS3Parser.EXTENDS, "extends");
ext.appendToken(TokenBuilder.newSpace());
// hack a space in at the right point,
LinkedListToken sp = TokenBuilder.newSpace();
ext.getStartToken().beforeInsert(sp);
ext.setStartToken(sp);
ast.addChildWithTokens(EXTENDS_INDEX, ext);
} else {
ext.appendToken(TokenBuilder.newComma());
}
ext.appendToken(TokenBuilder.newSpace());
ext.addChildWithTokens(iface);
}
public void removeSuperInterface(String interfaceName) {
LinkedListTree impls = ASTUtils.findChildByType(ast, AS3Parser.EXTENDS);
int count = 0;
for (ASTIterator i=new ASTIterator(impls); i.hasNext(); ) {
LinkedListTree iface = i.next();
String name = ASTUtils.identText(iface);
if (name.equals(interfaceName)) {
if (i.hasNext()) {
ASTUtils.removeTrailingWhitespaceAndComma(iface.getStopToken());
} else if (count == 0) {
// no interfaces left, so remove the
// 'implements' clause completely,
ast.deleteChild(ast.getIndexOfChild(impls));
break;
}
i.remove();
if (i.hasNext()) {
count++;
}
break;
}
count++;
}
}
public ASMethod newMethod(String name, Visibility visibility, String returnType) {
ASTASMethod meth = ASTBuilder.newInterfaceMethod(name, visibility, returnType);
addMethod(meth);
return meth;
}
public void addMethod(ASTASMethod meth) {
ASTUtils.addChildWithIndentation(findTypeBlock(), meth.getAST());
}
}