| /* |
| * 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.ClassHelper; |
| 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.Type; |
| import org.objectweb.asm.signature.SignatureVisitor; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * @author Peter Gromov |
| */ |
| abstract class TypeSignatureParser extends SignatureVisitor { |
| private final AsmReferenceResolver resolver; |
| |
| public TypeSignatureParser(AsmReferenceResolver resolver) { |
| super(Opcodes.ASM5); |
| this.resolver = resolver; |
| } |
| |
| abstract void finished(ClassNode result); |
| |
| private String baseName; |
| private final List<GenericsType> arguments = new ArrayList<GenericsType>(); |
| |
| @Override |
| public void visitTypeVariable(String name) { |
| finished(Java5.configureTypeVariableReference(name)); |
| } |
| |
| @Override |
| public void visitBaseType(char descriptor) { |
| finished(resolver.resolveType(Type.getType(String.valueOf(descriptor)))); |
| } |
| |
| @Override |
| public SignatureVisitor visitArrayType() { |
| final TypeSignatureParser outer = this; |
| return new TypeSignatureParser(resolver) { |
| @Override |
| void finished(ClassNode result) { |
| outer.finished(result.makeArray()); |
| } |
| }; |
| } |
| |
| @Override |
| public void visitClassType(String name) { |
| baseName = AsmDecompiler.fromInternalName(name); |
| } |
| |
| @Override |
| public void visitTypeArgument() { |
| arguments.add(createWildcard(new ClassNode[]{ClassHelper.OBJECT_TYPE}, null)); |
| } |
| |
| @Override |
| public SignatureVisitor visitTypeArgument(final char wildcard) { |
| return new TypeSignatureParser(resolver) { |
| @Override |
| void finished(ClassNode result) { |
| if (wildcard == INSTANCEOF) { |
| arguments.add(new GenericsType(result)); |
| return; |
| } |
| |
| ClassNode[] upper = wildcard == EXTENDS ? new ClassNode[]{result} : null; |
| ClassNode lower = wildcard == SUPER ? result : null; |
| arguments.add(createWildcard(upper, lower)); |
| } |
| }; |
| } |
| |
| private static GenericsType createWildcard(ClassNode[] upper, ClassNode lower) { |
| ClassNode base = ClassHelper.makeWithoutCaching("?"); |
| base.setRedirect(ClassHelper.OBJECT_TYPE); |
| GenericsType t = new GenericsType(base, upper, lower); |
| t.setWildcard(true); |
| return t; |
| } |
| |
| @Override |
| public void visitInnerClassType(String name) { |
| baseName += "$" + name; |
| arguments.clear(); |
| } |
| |
| @Override |
| public void visitEnd() { |
| ClassNode base = resolver.resolveClass(baseName); |
| if (arguments.isEmpty()) { |
| finished(base); |
| return; |
| } |
| |
| ClassNode bound = base.getPlainNodeReference(); |
| bound.setGenericsTypes(arguments.toArray(new GenericsType[arguments.size()])); |
| finished(bound); |
| } |
| |
| } |