/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.codehaus.groovy.ast.decompiled;
import org.codehaus.groovy.ast.ClassNode;
import org.codehaus.groovy.ast.GenericsType;
import org.codehaus.groovy.vmplugin.v5.Java5;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.signature.SignatureVisitor;
import java.util.ArrayList;
import java.util.List;
/**
* @author Peter Gromov
*/
abstract class FormalParameterParser extends SignatureVisitor {
private final AsmReferenceResolver resolver;
private String currentTypeParameter;
private final List<ClassNode> parameterBounds = new ArrayList<ClassNode>();
private final List<GenericsType> typeParameters = new ArrayList<GenericsType>();
public FormalParameterParser(AsmReferenceResolver resolver) {
super(Opcodes.ASM5);
this.resolver = resolver;
}
@Override
public void visitFormalTypeParameter(String name) {
flushTypeParameter();
currentTypeParameter = name;
}
protected void flushTypeParameter() {
if (currentTypeParameter != null) {
ClassNode ref = Java5.configureTypeVariableReference(currentTypeParameter);
ClassNode[] boundNodes = parameterBounds.toArray(new ClassNode[parameterBounds.size()]);
typeParameters.add(Java5.configureTypeVariableDefinition(ref, boundNodes));
currentTypeParameter = null;
parameterBounds.clear();
}
}
@Override
public SignatureVisitor visitClassBound() {
return new TypeSignatureParser(resolver) {
@Override
void finished(ClassNode result) {
parameterBounds.add(result);
}
};
}
@Override
public SignatureVisitor visitInterfaceBound() {
return visitClassBound();
}
public GenericsType[] getTypeParameters() {
flushTypeParameter();
return typeParameters.toArray(new GenericsType[typeParameters.size()]);
}
}