| /*** |
| * ASM: a very small and fast Java bytecode manipulation framework |
| * Copyright (c) 2000-2011 INRIA, France Telecom |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| package org.apache.tajo.org.objectweb.asm.signature; |
| |
| import org.apache.tajo.org.objectweb.asm.Opcodes; |
| |
| /** |
| * A visitor to visit a generic signature. The methods of this interface must be |
| * called in one of the three following orders (the last one is the only valid |
| * order for a {@link SignatureVisitor} that is returned by a method of this |
| * interface): |
| * <ul> |
| * <li><i>ClassSignature</i> = ( <tt>visitFormalTypeParameter</tt> |
| * <tt>visitClassBound</tt>? <tt>visitInterfaceBound</tt>* )* ( |
| * <tt>visitSuperClass</tt> <tt>visitInterface</tt>* )</li> |
| * <li><i>MethodSignature</i> = ( <tt>visitFormalTypeParameter</tt> |
| * <tt>visitClassBound</tt>? <tt>visitInterfaceBound</tt>* )* ( |
| * <tt>visitParameterType</tt>* <tt>visitReturnType</tt> |
| * <tt>visitExceptionType</tt>* )</li> |
| * <li><i>TypeSignature</i> = <tt>visitBaseType</tt> | |
| * <tt>visitTypeVariable</tt> | <tt>visitArrayType</tt> | ( |
| * <tt>visitClassType</tt> <tt>visitTypeArgument</tt>* ( |
| * <tt>visitInnerClassType</tt> <tt>visitTypeArgument</tt>* )* <tt>visitEnd</tt> |
| * ) )</li> |
| * </ul> |
| * |
| * @author Thomas Hallgren |
| * @author Eric Bruneton |
| */ |
| public abstract class SignatureVisitor { |
| |
| /** |
| * Wildcard for an "extends" type argument. |
| */ |
| public final static char EXTENDS = '+'; |
| |
| /** |
| * Wildcard for a "super" type argument. |
| */ |
| public final static char SUPER = '-'; |
| |
| /** |
| * Wildcard for a normal type argument. |
| */ |
| public final static char INSTANCEOF = '='; |
| |
| /** |
| * The ASM API version implemented by this visitor. The value of this field |
| * must be one of {@link Opcodes#ASM4}. |
| */ |
| protected final int api; |
| |
| /** |
| * Constructs a new {@link SignatureVisitor}. |
| * |
| * @param api |
| * the ASM API version implemented by this visitor. Must be one |
| * of {@link Opcodes#ASM4}. |
| */ |
| public SignatureVisitor(final int api) { |
| this.api = api; |
| } |
| |
| /** |
| * Visits a formal type parameter. |
| * |
| * @param name |
| * the name of the formal parameter. |
| */ |
| public void visitFormalTypeParameter(String name) { |
| } |
| |
| /** |
| * Visits the class bound of the last visited formal type parameter. |
| * |
| * @return a non null visitor to visit the signature of the class bound. |
| */ |
| public SignatureVisitor visitClassBound() { |
| return this; |
| } |
| |
| /** |
| * Visits an interface bound of the last visited formal type parameter. |
| * |
| * @return a non null visitor to visit the signature of the interface bound. |
| */ |
| public SignatureVisitor visitInterfaceBound() { |
| return this; |
| } |
| |
| /** |
| * Visits the type of the super class. |
| * |
| * @return a non null visitor to visit the signature of the super class |
| * type. |
| */ |
| public SignatureVisitor visitSuperclass() { |
| return this; |
| } |
| |
| /** |
| * Visits the type of an interface implemented by the class. |
| * |
| * @return a non null visitor to visit the signature of the interface type. |
| */ |
| public SignatureVisitor visitInterface() { |
| return this; |
| } |
| |
| /** |
| * Visits the type of a method parameter. |
| * |
| * @return a non null visitor to visit the signature of the parameter type. |
| */ |
| public SignatureVisitor visitParameterType() { |
| return this; |
| } |
| |
| /** |
| * Visits the return type of the method. |
| * |
| * @return a non null visitor to visit the signature of the return type. |
| */ |
| public SignatureVisitor visitReturnType() { |
| return this; |
| } |
| |
| /** |
| * Visits the type of a method exception. |
| * |
| * @return a non null visitor to visit the signature of the exception type. |
| */ |
| public SignatureVisitor visitExceptionType() { |
| return this; |
| } |
| |
| /** |
| * Visits a signature corresponding to a primitive type. |
| * |
| * @param descriptor |
| * the descriptor of the primitive type, or 'V' for <tt>void</tt> |
| * . |
| */ |
| public void visitBaseType(char descriptor) { |
| } |
| |
| /** |
| * Visits a signature corresponding to a type variable. |
| * |
| * @param name |
| * the name of the type variable. |
| */ |
| public void visitTypeVariable(String name) { |
| } |
| |
| /** |
| * Visits a signature corresponding to an array type. |
| * |
| * @return a non null visitor to visit the signature of the array element |
| * type. |
| */ |
| public SignatureVisitor visitArrayType() { |
| return this; |
| } |
| |
| /** |
| * Starts the visit of a signature corresponding to a class or interface |
| * type. |
| * |
| * @param name |
| * the internal name of the class or interface. |
| */ |
| public void visitClassType(String name) { |
| } |
| |
| /** |
| * Visits an inner class. |
| * |
| * @param name |
| * the local name of the inner class in its enclosing class. |
| */ |
| public void visitInnerClassType(String name) { |
| } |
| |
| /** |
| * Visits an unbounded type argument of the last visited class or inner |
| * class type. |
| */ |
| public void visitTypeArgument() { |
| } |
| |
| /** |
| * Visits a type argument of the last visited class or inner class type. |
| * |
| * @param wildcard |
| * '+', '-' or '='. |
| * @return a non null visitor to visit the signature of the type argument. |
| */ |
| public SignatureVisitor visitTypeArgument(char wildcard) { |
| return this; |
| } |
| |
| /** |
| * Ends the visit of a signature corresponding to a class or interface type. |
| */ |
| public void visitEnd() { |
| } |
| } |