/** Method invocation. */
public void visitInvokeInstruction(InvokeInstruction i) {
Type[] argTypes = i.getArgumentTypes(cp);
for (int j = 0; j < argTypes.length; j++) cv.registerCoupling(argTypes[j]);
cv.registerCoupling(i.getReturnType(cp));
/* Measuring decision: measure overloaded methods separately */
cv.registerMethodInvocation(i.getClassName(cp), i.getMethodName(cp), argTypes);
}
/**
* 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 <tt>null</tt> if the field's type does not use
* generic types.
* @param value the field's initial value. This parameter, which may be <tt>null</tt> 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 <tt>int</tt>, <tt>float</tt>,
* <tt>long</tt> or <tt>String</tt> fields respectively). <i>This parameter is only used for
* static fields</i>. 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 <tt>null</tt> 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 <i>must</i> return a new {@link MethodVisitor}
* instance (or <tt>null</tt>) 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 <tt>null</tt> 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 <tt>null</tt>.
* @return an object to visit the byte code of the method, or <tt>null</tt> 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;
}
private void visitClass(String classFileName, ClassVisitor classVisitor) {
try {
CtClass current =
GwtClassPool.getClass(
classFileName.substring(0, classFileName.length() - ".class".length()));
classVisitor.visit(current);
for (CtClass innerClass : current.getNestedClasses()) {
classVisitor.visit(innerClass);
}
} catch (NotFoundException e) {
// do nothing
}
}
public FieldVisitor visitField(
final int access,
final String name,
final String desc,
final String signature,
final Object value) {
return cv.visitField(access, name, desc, signature, value);
}
private FieldVisitor declareStaticField(ClassVisitor visitor, String name, Class<?> fieldClass) {
return visitor.visitField(
ACC_PRIVATE | ACC_FINAL | ACC_STATIC | ACC_SYNTHETIC,
name,
Type.getDescriptor(fieldClass),
null,
null);
}
/**
* Makes the given class visitor visit this method.
*
* @param cv a class visitor.
*/
public void accept(final ClassVisitor cv) {
String[] exceptions = new String[this.exceptions.size()];
this.exceptions.toArray(exceptions);
MethodVisitor mv = cv.visitMethod(access, name, desc, signature, exceptions);
if (mv != null) {
accept(mv);
}
}
public MethodVisitor visitMethod(
final int access,
final String name,
final String desc,
final String signature,
final String[] exceptions) {
return cv.visitMethod(access, name, desc, signature, exceptions);
}
public void visit(
final int version,
final int access,
final String name,
final String signature,
final String superName,
final String[] interfaces) {
cv.visit(version, access, name, signature, superName, interfaces);
}
/** Visit the method's exception handlers. */
private void updateExceptionHandlers() {
CodeExceptionGen[] handlers = mg.getExceptionHandlers();
/* Measuring decision: couple exceptions */
for (int i = 0; i < handlers.length; i++) {
Type t = handlers[i].getCatchType();
if (t != null) cv.registerCoupling(t);
}
}
@Override
public void visitEnd() {
for (Map.Entry<Handle, Handle> entry : lambdaAccessToImplMethods.entrySet()) {
Handle accessMethod = entry.getKey();
Handle implMethod = entry.getValue();
Bytecode.generateDelegateMethod(cv, ACC_STATIC | ACC_SYNTHETIC, accessMethod, implMethod);
}
super.visitEnd();
}
@Override
public void visit(
int version,
int access,
String name,
String signature,
String superName,
String[] interfaces) {
super.visit(version, access, name, FOO, superName, interfaces);
}
private MethodVisitor declareMethod(
ClassVisitor visitor,
String methodName,
String methodDescriptor,
String methodSignature,
int access) {
MethodVisitor methodVisitor =
visitor.visitMethod(access, methodName, methodDescriptor, methodSignature, NO_EXCEPTIONS);
methodVisitor.visitCode();
return methodVisitor;
}
/**
* 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 <tt>null</tt> 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 <tt>null</tt>,
* but only for the {@link Object} class.
* @param interfaces the internal names of the class's interfaces (see {@link
* Type#getInternalName() getInternalName}). May be <tt>null</tt>.
*/
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);
}
}
@Override
public void visit(
int version,
int access,
String name,
String signature,
String superName,
String[] interfaces) {
resetLambdaClassSequenceNumber();
this.classAccess = access;
this.className = name;
super.visit(version, access, name, signature, superName, interfaces);
}
private void declareClass(
ClassVisitor visitor,
Collection<String> interfaceInternalNames,
Type generatedType,
Type superclassType) {
visitor.visit(
V1_6,
ACC_PUBLIC,
generatedType.getInternalName(),
null,
superclassType.getInternalName(),
Iterables.toArray(interfaceInternalNames, String.class));
}
/**
* Makes the given class visitor visit this class.
*
* @param cv a class visitor.
*/
public void accept(final ClassVisitor cv) {
// visits header
String[] interfaces = new String[this.interfaces.size()];
this.interfaces.toArray(interfaces);
cv.visit(version, access, name, signature, superName, interfaces);
// visits source
if (sourceFile != null || sourceDebug != null) {
cv.visitSource(sourceFile, sourceDebug);
}
// visits outer class
if (outerClass != null) {
cv.visitOuterClass(outerClass, outerMethod, outerMethodDesc);
}
// visits attributes
int i, n;
n = visibleAnnotations == null ? 0 : visibleAnnotations.size();
for (i = 0; i < n; ++i) {
AnnotationNode an = visibleAnnotations.get(i);
an.accept(cv.visitAnnotation(an.desc, true));
}
n = invisibleAnnotations == null ? 0 : invisibleAnnotations.size();
for (i = 0; i < n; ++i) {
AnnotationNode an = invisibleAnnotations.get(i);
an.accept(cv.visitAnnotation(an.desc, false));
}
n = attrs == null ? 0 : attrs.size();
for (i = 0; i < n; ++i) {
cv.visitAttribute(attrs.get(i));
}
// visits inner classes
for (i = 0; i < innerClasses.size(); ++i) {
innerClasses.get(i).accept(cv);
}
// visits fields
for (i = 0; i < fields.size(); ++i) {
fields.get(i).accept(cv);
}
// visits methods
for (i = 0; i < methods.size(); ++i) {
methods.get(i).accept(cv);
}
// visits end
cv.visitEnd();
}
private void writeEqualsMethod(ClassVisitor cw, Type generatedType) {
MethodVisitor methodVisitor =
cw.visitMethod(Opcodes.ACC_PUBLIC, "equals", EQUALS_METHOD_DESCRIPTOR, null, null);
methodVisitor.visitCode();
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitVarInsn(ALOAD, 1);
Label notSameLabel = new Label();
methodVisitor.visitJumpInsn(IF_ACMPNE, notSameLabel);
methodVisitor.visitInsn(ICONST_1);
methodVisitor.visitInsn(IRETURN);
methodVisitor.visitLabel(notSameLabel);
methodVisitor.visitVarInsn(ALOAD, 1);
methodVisitor.visitTypeInsn(INSTANCEOF, MANAGED_INSTANCE_TYPE);
Label notManagedInstanceLabel = new Label();
methodVisitor.visitJumpInsn(IFNE, notManagedInstanceLabel);
methodVisitor.visitInsn(ICONST_0);
methodVisitor.visitInsn(IRETURN);
methodVisitor.visitLabel(notManagedInstanceLabel);
methodVisitor.visitVarInsn(ALOAD, 0);
methodVisitor.visitMethodInsn(
INVOKEVIRTUAL,
generatedType.getInternalName(),
"getBackingNode",
GET_BACKING_NODE_METHOD_DESCRIPTOR,
false);
methodVisitor.visitVarInsn(ALOAD, 1);
methodVisitor.visitTypeInsn(CHECKCAST, MANAGED_INSTANCE_TYPE);
methodVisitor.visitMethodInsn(
INVOKEINTERFACE,
MANAGED_INSTANCE_TYPE,
"getBackingNode",
GET_BACKING_NODE_METHOD_DESCRIPTOR,
true);
methodVisitor.visitMethodInsn(
INVOKEINTERFACE, MUTABLE_MODEL_NODE_TYPE, "equals", EQUALS_METHOD_DESCRIPTOR, true);
finishVisitingMethod(methodVisitor, Opcodes.IRETURN);
}
/**
* 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();
}
}
/**
* 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 <tt>null</tt> for not member classes.
* @param innerName the (simple) name of the inner class inside its enclosing class. May be
* <tt>null</tt> 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 non standard attribute of the class.
*
* @param attr an attribute.
*/
public void visitAttribute(Attribute attr) {
if (cv != null) {
cv.visitAttribute(attr);
}
}
/**
* Visits an annotation of the class.
*
* @param desc the class descriptor of the annotation class.
* @param visible <tt>true</tt> if the annotation is visible at runtime.
* @return a visitor to visit the annotation values, or <tt>null</tt> 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;
}
public void visitInnerClass(
final String name, final String outerName, final String innerName, final int access) {
cv.visitInnerClass(name, outerName, innerName, access);
}
public void accept(ClassVisitor cv) {
cv.visitField(access, name, type.getDescriptor(), null /*generics*/, null /*value*/);
}
public void accept(ClassVisitor classVisitor) {
classVisitor.visitLibraryClass(this);
}
public void visitLibraryClass(LibraryClass libraryClass) {
if (accepted(libraryClass.getAccessFlags())) {
classVisitor.visitLibraryClass(libraryClass);
}
}
public void visitProgramClass(ProgramClass programClass) {
if (accepted(programClass.getAccessFlags())) {
classVisitor.visitProgramClass(programClass);
}
}
public void visitEnd() {
cv.visitEnd();
}
/**
* Visits the source of the class.
*
* @param source the name of the source file from which the class was compiled. May be
* <tt>null</tt>.
* @param debug additional debug information to compute the correspondance between source and
* compiled elements of the class. May be <tt>null</tt>.
*/
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 <tt>null</tt> 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 <tt>null</tt> 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);
}
}
