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EasyMock provides an easy way to create Mock Objects for interfaces and classes generating them on the fly
/***
* 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.easymock.asm.optimizer;
import org.easymock.asm.AnnotationVisitor;
import org.easymock.asm.Handle;
import org.easymock.asm.Label;
import org.easymock.asm.MethodVisitor;
import org.easymock.asm.Opcodes;
import org.easymock.asm.TypePath;
/**
* An {@link MethodVisitor} that collects the {@link Constant}s of the methods
* it visits.
*
* @author Eric Bruneton
*/
public class MethodConstantsCollector extends MethodVisitor {
private final ConstantPool cp;
public MethodConstantsCollector(final MethodVisitor mv,
final ConstantPool cp) {
super(Opcodes.ASM5, mv);
this.cp = cp;
}
@Override
public void visitParameter(String name, int access) {
cp.newUTF8("MethodParameters");
if (name != null) {
cp.newUTF8(name);
}
mv.visitParameter(name, access);
}
@Override
public AnnotationVisitor visitAnnotationDefault() {
cp.newUTF8("AnnotationDefault");
return new AnnotationConstantsCollector(mv.visitAnnotationDefault(), cp);
}
@Override
public AnnotationVisitor visitAnnotation(final String desc,
final boolean visible) {
cp.newUTF8(desc);
if (visible) {
cp.newUTF8("RuntimeVisibleAnnotations");
} else {
cp.newUTF8("RuntimeInvisibleAnnotations");
}
return new AnnotationConstantsCollector(mv.visitAnnotation(desc,
visible), cp);
}
@Override
public AnnotationVisitor visitTypeAnnotation(int typeRef,
TypePath typePath, String desc, boolean visible) {
cp.newUTF8(desc);
if (visible) {
cp.newUTF8("RuntimeVisibleTypeAnnotations");
} else {
cp.newUTF8("RuntimeInvisibleTypeAnnotations");
}
return new AnnotationConstantsCollector(mv.visitAnnotation(desc,
visible), cp);
}
@Override
public AnnotationVisitor visitParameterAnnotation(final int parameter,
final String desc, final boolean visible) {
cp.newUTF8(desc);
if (visible) {
cp.newUTF8("RuntimeVisibleParameterAnnotations");
} else {
cp.newUTF8("RuntimeInvisibleParameterAnnotations");
}
return new AnnotationConstantsCollector(mv.visitParameterAnnotation(
parameter, desc, visible), cp);
}
@Override
public void visitTypeInsn(final int opcode, final String type) {
cp.newClass(type);
mv.visitTypeInsn(opcode, type);
}
@Override
public void visitFieldInsn(final int opcode, final String owner,
final String name, final String desc) {
cp.newField(owner, name, desc);
mv.visitFieldInsn(opcode, owner, name, desc);
}
@Override
public void visitMethodInsn(final int opcode, final String owner,
final String name, final String desc, final boolean itf) {
cp.newMethod(owner, name, desc, itf);
mv.visitMethodInsn(opcode, owner, name, desc, itf);
}
@Override
public void visitInvokeDynamicInsn(String name, String desc, Handle bsm,
Object... bsmArgs) {
cp.newInvokeDynamic(name, desc, bsm, bsmArgs);
mv.visitInvokeDynamicInsn(name, desc, bsm, bsmArgs);
}
@Override
public void visitLdcInsn(final Object cst) {
cp.newConst(cst);
mv.visitLdcInsn(cst);
}
@Override
public void visitMultiANewArrayInsn(final String desc, final int dims) {
cp.newClass(desc);
mv.visitMultiANewArrayInsn(desc, dims);
}
@Override
public AnnotationVisitor visitInsnAnnotation(int typeRef,
TypePath typePath, String desc, boolean visible) {
cp.newUTF8(desc);
if (visible) {
cp.newUTF8("RuntimeVisibleTypeAnnotations");
} else {
cp.newUTF8("RuntimeInvisibleTypeAnnotations");
}
return new AnnotationConstantsCollector(mv.visitInsnAnnotation(typeRef,
typePath, desc, visible), cp);
}
@Override
public void visitTryCatchBlock(final Label start, final Label end,
final Label handler, final String type) {
if (type != null) {
cp.newClass(type);
}
mv.visitTryCatchBlock(start, end, handler, type);
}
@Override
public AnnotationVisitor visitTryCatchAnnotation(int typeRef,
TypePath typePath, String desc, boolean visible) {
cp.newUTF8(desc);
if (visible) {
cp.newUTF8("RuntimeVisibleTypeAnnotations");
} else {
cp.newUTF8("RuntimeInvisibleTypeAnnotations");
}
return new AnnotationConstantsCollector(mv.visitTryCatchAnnotation(
typeRef, typePath, desc, visible), cp);
}
@Override
public void visitLocalVariable(final String name, final String desc,
final String signature, final Label start, final Label end,
final int index) {
if (signature != null) {
cp.newUTF8("LocalVariableTypeTable");
cp.newUTF8(name);
cp.newUTF8(signature);
}
cp.newUTF8("LocalVariableTable");
cp.newUTF8(name);
cp.newUTF8(desc);
mv.visitLocalVariable(name, desc, signature, start, end, index);
}
@Override
public AnnotationVisitor visitLocalVariableAnnotation(int typeRef,
TypePath typePath, Label[] start, Label[] end, int[] index,
String desc, boolean visible) {
cp.newUTF8(desc);
if (visible) {
cp.newUTF8("RuntimeVisibleTypeAnnotations");
} else {
cp.newUTF8("RuntimeInvisibleTypeAnnotations");
}
return new AnnotationConstantsCollector(
mv.visitLocalVariableAnnotation(typeRef, typePath, start, end,
index, desc, visible), cp);
}
@Override
public void visitLineNumber(final int line, final Label start) {
cp.newUTF8("LineNumberTable");
mv.visitLineNumber(line, start);
}
@Override
public void visitMaxs(final int maxStack, final int maxLocals) {
cp.newUTF8("Code");
mv.visitMaxs(maxStack, maxLocals);
}
}