mockit.external.asm4.ClassVisitor Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jmockit Show documentation
Show all versions of jmockit Show documentation
JMockit is a Java toolkit for developer (unit/integration) testing.
It contains mocking APIs and other tools, supporting both JUnit and TestNG.
The mocking APIs allow all kinds of Java code, without testability restrictions, to be tested
in isolation from selected dependencies.
/***
* ASM: a very small and fast Java bytecode manipulation framework
* Copyright (c) 2000-2007 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 mockit.external.asm4;
/**
* A visitor to visit a Java class. The methods of this class must be called
* in the following order: visit [ visitSource ] [
* visitOuterClass ] ( visitAnnotation |
* visitAttribute )* ( visitInnerClass |
* visitField | visitMethod )* visitEnd.
*
* @author Eric Bruneton
*/
public abstract class ClassVisitor {
/**
* The ASM API version implemented by this visitor. The value of this field
* must be one of {@link Opcodes#ASM4}.
*/
protected final int api;
/**
* The class visitor to which this visitor must delegate method calls. May
* be null.
*/
protected ClassVisitor cv;
/**
* Constructs a new {@link ClassVisitor}.
*
* @param api the ASM API version implemented by this visitor. Must be one
* of {@link Opcodes#ASM4}.
*/
public ClassVisitor(final int api) {
this(api, null);
}
/**
* Constructs a new {@link ClassVisitor}.
*
* @param api the ASM API version implemented by this visitor. Must be one
* of {@link Opcodes#ASM4}.
* @param cv the class visitor to which this visitor must delegate method
* calls. May be null.
*/
public ClassVisitor(final int api, final ClassVisitor cv) {
/*if (api != Opcodes.ASM4) {
throw new IllegalArgumentException();
}*/
this.api = api;
this.cv = cv;
}
/**
* Visits the header of the class.
*
* @param version the class version.
* @param access the class's access flags (see {@link Opcodes}). This
* parameter also indicates if the class is deprecated.
* @param name the internal name of the class (see
* {@link Type#getInternalName() getInternalName}).
* @param signature the signature of this class. May be null if
* the class is not a generic one, and does not extend or implement
* generic classes or interfaces.
* @param superName the internal of name of the super class (see
* {@link Type#getInternalName() getInternalName}). For interfaces,
* the super class is {@link Object}. May be null, but
* only for the {@link Object} class.
* @param interfaces the internal names of the class's interfaces (see
* {@link Type#getInternalName() getInternalName}). May be
* null.
*/
public void visit(
int version,
int access,
String name,
String signature,
String superName,
String[] interfaces)
{
if (cv != null) {
cv.visit(version, access, name, signature, superName, interfaces);
}
}
/**
* Visits the source of the class.
*
* @param source the name of the source file from which the class was
* compiled. May be null.
* @param debug additional debug information to compute the correspondance
* between source and compiled elements of the class. May be
* null.
*/
public void visitSource(String source, String debug) {
if (cv != null) {
cv.visitSource(source, debug);
}
}
/**
* Visits the enclosing class of the class. This method must be called only
* if the class has an enclosing class.
*
* @param owner internal name of the enclosing class of the class.
* @param name the name of the method that contains the class, or
* null if the class is not enclosed in a method of its
* enclosing class.
* @param desc the descriptor of the method that contains the class, or
* null if the class is not enclosed in a method of its
* enclosing class.
*/
public void visitOuterClass(String owner, String name, String desc) {
if (cv != null) {
cv.visitOuterClass(owner, name, desc);
}
}
/**
* Visits an annotation of the class.
*
* @param desc the class descriptor of the annotation class.
* @param visible true if the annotation is visible at runtime.
* @return a visitor to visit the annotation values, or null if
* this visitor is not interested in visiting this annotation.
*/
public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
if (cv != null) {
return cv.visitAnnotation(desc, visible);
}
return null;
}
/**
* Visits a non standard attribute of the class.
*
* @param attr an attribute.
*/
public void visitAttribute(Attribute attr) {
if (cv != null) {
cv.visitAttribute(attr);
}
}
/**
* Visits information about an inner class. This inner class is not
* necessarily a member of the class being visited.
*
* @param name the internal name of an inner class (see
* {@link Type#getInternalName() getInternalName}).
* @param outerName the internal name of the class to which the inner class
* belongs (see {@link Type#getInternalName() getInternalName}). May
* be null for not member classes.
* @param innerName the (simple) name of the inner class inside its
* enclosing class. May be null for anonymous inner
* classes.
* @param access the access flags of the inner class as originally declared
* in the enclosing class.
*/
public void visitInnerClass(
String name,
String outerName,
String innerName,
int access)
{
if (cv != null) {
cv.visitInnerClass(name, outerName, innerName, access);
}
}
/**
* Visits a field of the class.
*
* @param access the field's access flags (see {@link Opcodes}). This
* parameter also indicates if the field is synthetic and/or
* deprecated.
* @param name the field's name.
* @param desc the field's descriptor (see {@link Type Type}).
* @param signature the field's signature. May be null if the
* field's type does not use generic types.
* @param value the field's initial value. This parameter, which may be
* null if the field does not have an initial value, must
* be an {@link Integer}, a {@link Float}, a {@link Long}, a
* {@link Double} or a {@link String} (for int,
* float, long or String fields
* respectively). This parameter is only used for static fields.
* Its value is ignored for non static fields, which must be
* initialized through bytecode instructions in constructors or
* methods.
* @return a visitor to visit field annotations and attributes, or
* null if this class visitor is not interested in
* visiting these annotations and attributes.
*/
public FieldVisitor visitField(
int access,
String name,
String desc,
String signature,
Object value)
{
if (cv != null) {
return cv.visitField(access, name, desc, signature, value);
}
return null;
}
/**
* Visits a method of the class. This method must return a new
* {@link MethodVisitor} instance (or null) each time it is
* called, i.e., it should not return a previously returned visitor.
*
* @param access the method's access flags (see {@link Opcodes}). This
* parameter also indicates if the method is synthetic and/or
* deprecated.
* @param name the method's name.
* @param desc the method's descriptor (see {@link Type Type}).
* @param signature the method's signature. May be null if the
* method parameters, return type and exceptions do not use generic
* types.
* @param exceptions the internal names of the method's exception classes
* (see {@link Type#getInternalName() getInternalName}). May be
* null.
* @return an object to visit the byte code of the method, or null
* if this class visitor is not interested in visiting the code of
* this method.
*/
public MethodVisitor visitMethod(
int access,
String name,
String desc,
String signature,
String[] exceptions)
{
if (cv != null) {
return cv.visitMethod(access, name, desc, signature, exceptions);
}
return null;
}
/**
* Visits the end of the class. This method, which is the last one to be
* called, is used to inform the visitor that all the fields and methods of
* the class have been visited.
*/
public void visitEnd() {
if (cv != null) {
cv.visitEnd();
}
}
}