| // 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.tapestry5.internal.plastic.asm.commons; |
| |
| import org.apache.tapestry5.internal.plastic.asm.AnnotationVisitor; |
| import org.apache.tapestry5.internal.plastic.asm.Handle; |
| import org.apache.tapestry5.internal.plastic.asm.Label; |
| import org.apache.tapestry5.internal.plastic.asm.MethodVisitor; |
| import org.apache.tapestry5.internal.plastic.asm.Opcodes; |
| import org.apache.tapestry5.internal.plastic.asm.TypePath; |
| |
| /** |
| * A {@link MethodVisitor} that remaps types with a {@link Remapper}. |
| * |
| * @author Eugene Kuleshov |
| */ |
| public class MethodRemapper extends MethodVisitor { |
| |
| /** The remapper used to remap the types in the visited field. */ |
| protected final Remapper remapper; |
| |
| /** |
| * Constructs a new {@link MethodRemapper}. <i>Subclasses must not use this constructor</i>. |
| * Instead, they must use the {@link #MethodRemapper(int,MethodVisitor,Remapper)} version. |
| * |
| * @param methodVisitor the method visitor this remapper must deleted to. |
| * @param remapper the remapper to use to remap the types in the visited method. |
| */ |
| public MethodRemapper(final MethodVisitor methodVisitor, final Remapper remapper) { |
| this(Opcodes.ASM7, methodVisitor, remapper); |
| } |
| |
| /** |
| * Constructs a new {@link MethodRemapper}. |
| * |
| * @param api the ASM API version supported by this remapper. Must be one of {@link |
| * org.apache.tapestry5.internal.plastic.asm.Opcodes#ASM4}, {@link org.apache.tapestry5.internal.plastic.asm.Opcodes#ASM5} or {@link |
| * org.apache.tapestry5.internal.plastic.asm.Opcodes#ASM6}. |
| * @param methodVisitor the method visitor this remapper must deleted to. |
| * @param remapper the remapper to use to remap the types in the visited method. |
| */ |
| protected MethodRemapper( |
| final int api, final MethodVisitor methodVisitor, final Remapper remapper) { |
| super(api, methodVisitor); |
| this.remapper = remapper; |
| } |
| |
| @Override |
| public AnnotationVisitor visitAnnotationDefault() { |
| AnnotationVisitor annotationVisitor = super.visitAnnotationDefault(); |
| return annotationVisitor == null |
| ? annotationVisitor |
| : new AnnotationRemapper(api, annotationVisitor, remapper); |
| } |
| |
| @Override |
| public AnnotationVisitor visitAnnotation(final String descriptor, final boolean visible) { |
| AnnotationVisitor annotationVisitor = |
| super.visitAnnotation(remapper.mapDesc(descriptor), visible); |
| return annotationVisitor == null |
| ? annotationVisitor |
| : new AnnotationRemapper(api, annotationVisitor, remapper); |
| } |
| |
| @Override |
| public AnnotationVisitor visitTypeAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| AnnotationVisitor annotationVisitor = |
| super.visitTypeAnnotation(typeRef, typePath, remapper.mapDesc(descriptor), visible); |
| return annotationVisitor == null |
| ? annotationVisitor |
| : new AnnotationRemapper(api, annotationVisitor, remapper); |
| } |
| |
| @Override |
| public AnnotationVisitor visitParameterAnnotation( |
| final int parameter, final String descriptor, final boolean visible) { |
| AnnotationVisitor annotationVisitor = |
| super.visitParameterAnnotation(parameter, remapper.mapDesc(descriptor), visible); |
| return annotationVisitor == null |
| ? annotationVisitor |
| : new AnnotationRemapper(api, annotationVisitor, remapper); |
| } |
| |
| @Override |
| public void visitFrame( |
| final int type, |
| final int numLocal, |
| final Object[] local, |
| final int numStack, |
| final Object[] stack) { |
| super.visitFrame( |
| type, |
| numLocal, |
| remapFrameTypes(numLocal, local), |
| numStack, |
| remapFrameTypes(numStack, stack)); |
| } |
| |
| private Object[] remapFrameTypes(final int numTypes, final Object[] frameTypes) { |
| if (frameTypes == null) { |
| return frameTypes; |
| } |
| Object[] remappedFrameTypes = null; |
| for (int i = 0; i < numTypes; ++i) { |
| if (frameTypes[i] instanceof String) { |
| if (remappedFrameTypes == null) { |
| remappedFrameTypes = new Object[numTypes]; |
| System.arraycopy(frameTypes, 0, remappedFrameTypes, 0, numTypes); |
| } |
| remappedFrameTypes[i] = remapper.mapType((String) frameTypes[i]); |
| } |
| } |
| return remappedFrameTypes == null ? frameTypes : remappedFrameTypes; |
| } |
| |
| @Override |
| public void visitFieldInsn( |
| final int opcode, final String owner, final String name, final String descriptor) { |
| super.visitFieldInsn( |
| opcode, |
| remapper.mapType(owner), |
| remapper.mapFieldName(owner, name, descriptor), |
| remapper.mapDesc(descriptor)); |
| } |
| |
| /** |
| * Deprecated. |
| * |
| * @deprecated use {@link #visitMethodInsn(int, String, String, String, boolean)} instead. |
| */ |
| @Deprecated |
| @Override |
| public void visitMethodInsn( |
| final int opcode, final String owner, final String name, final String descriptor) { |
| if (api >= Opcodes.ASM5) { |
| super.visitMethodInsn(opcode, owner, name, descriptor); |
| return; |
| } |
| doVisitMethodInsn(opcode, owner, name, descriptor, opcode == Opcodes.INVOKEINTERFACE); |
| } |
| |
| @Override |
| public void visitMethodInsn( |
| final int opcode, |
| final String owner, |
| final String name, |
| final String descriptor, |
| final boolean isInterface) { |
| if (api < Opcodes.ASM5) { |
| super.visitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| return; |
| } |
| doVisitMethodInsn(opcode, owner, name, descriptor, isInterface); |
| } |
| |
| private void doVisitMethodInsn( |
| final int opcode, |
| final String owner, |
| final String name, |
| final String descriptor, |
| final boolean isInterface) { |
| // Calling super.visitMethodInsn requires to call the correct version depending on this.api |
| // (otherwise infinite loops can occur). To simplify and to make it easier to automatically |
| // remove the backward compatibility code, we inline the code of the overridden method here. |
| if (mv != null) { |
| mv.visitMethodInsn( |
| opcode, |
| remapper.mapType(owner), |
| remapper.mapMethodName(owner, name, descriptor), |
| remapper.mapMethodDesc(descriptor), |
| isInterface); |
| } |
| } |
| |
| @Override |
| public void visitInvokeDynamicInsn( |
| final String name, |
| final String descriptor, |
| final Handle bootstrapMethodHandle, |
| final Object... bootstrapMethodArguments) { |
| Object[] remappedBootstrapMethodArguments = new Object[bootstrapMethodArguments.length]; |
| for (int i = 0; i < bootstrapMethodArguments.length; ++i) { |
| remappedBootstrapMethodArguments[i] = remapper.mapValue(bootstrapMethodArguments[i]); |
| } |
| super.visitInvokeDynamicInsn( |
| remapper.mapInvokeDynamicMethodName(name, descriptor), |
| remapper.mapMethodDesc(descriptor), |
| (Handle) remapper.mapValue(bootstrapMethodHandle), |
| remappedBootstrapMethodArguments); |
| } |
| |
| @Override |
| public void visitTypeInsn(final int opcode, final String type) { |
| super.visitTypeInsn(opcode, remapper.mapType(type)); |
| } |
| |
| @Override |
| public void visitLdcInsn(final Object value) { |
| super.visitLdcInsn(remapper.mapValue(value)); |
| } |
| |
| @Override |
| public void visitMultiANewArrayInsn(final String descriptor, final int numDimensions) { |
| super.visitMultiANewArrayInsn(remapper.mapDesc(descriptor), numDimensions); |
| } |
| |
| @Override |
| public AnnotationVisitor visitInsnAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| AnnotationVisitor annotationVisitor = |
| super.visitInsnAnnotation(typeRef, typePath, remapper.mapDesc(descriptor), visible); |
| return annotationVisitor == null |
| ? annotationVisitor |
| : new AnnotationRemapper(api, annotationVisitor, remapper); |
| } |
| |
| @Override |
| public void visitTryCatchBlock( |
| final Label start, final Label end, final Label handler, final String type) { |
| super.visitTryCatchBlock(start, end, handler, type == null ? null : remapper.mapType(type)); |
| } |
| |
| @Override |
| public AnnotationVisitor visitTryCatchAnnotation( |
| final int typeRef, final TypePath typePath, final String descriptor, final boolean visible) { |
| AnnotationVisitor annotationVisitor = |
| super.visitTryCatchAnnotation(typeRef, typePath, remapper.mapDesc(descriptor), visible); |
| return annotationVisitor == null |
| ? annotationVisitor |
| : new AnnotationRemapper(api, annotationVisitor, remapper); |
| } |
| |
| @Override |
| public void visitLocalVariable( |
| final String name, |
| final String descriptor, |
| final String signature, |
| final Label start, |
| final Label end, |
| final int index) { |
| super.visitLocalVariable( |
| name, |
| remapper.mapDesc(descriptor), |
| remapper.mapSignature(signature, true), |
| start, |
| end, |
| index); |
| } |
| |
| @Override |
| public AnnotationVisitor visitLocalVariableAnnotation( |
| final int typeRef, |
| final TypePath typePath, |
| final Label[] start, |
| final Label[] end, |
| final int[] index, |
| final String descriptor, |
| final boolean visible) { |
| AnnotationVisitor annotationVisitor = |
| super.visitLocalVariableAnnotation( |
| typeRef, typePath, start, end, index, remapper.mapDesc(descriptor), visible); |
| return annotationVisitor == null |
| ? annotationVisitor |
| : new AnnotationRemapper(api, annotationVisitor, remapper); |
| } |
| } |