private static AbstractInsnNode getDefault(Type type) {
if (type.equals(Type.BOOLEAN_TYPE)) {
return new LdcInsnNode(0);
} else if (type.equals(Type.INT_TYPE)) {
return new LdcInsnNode(0);
} else if (type.equals(Type.BYTE_TYPE)) {
return new LdcInsnNode(0);
} else if (type.equals(Type.CHAR_TYPE)) {
return new LdcInsnNode(0);
} else if (type.equals(Type.DOUBLE_TYPE)) {
return new LdcInsnNode(0.0);
} else if (type.equals(Type.FLOAT_TYPE)) {
return new LdcInsnNode(0.0F);
} else if (type.equals(Type.INT_TYPE)) {
return new LdcInsnNode(0);
} else if (type.equals(Type.LONG_TYPE)) {
return new LdcInsnNode(0L);
} else if (type.equals(Type.SHORT_TYPE)) {
return new LdcInsnNode(0);
} else if (type.equals(Type.VOID_TYPE)) {
return new LabelNode();
} else {
return new InsnNode(Opcodes.ACONST_NULL);
}
}
public DirectedGraph<Node, Edge> convert() {
DirectedGraph<Node, Edge> graph = new SimpleDirectedGraph<Node, Edge>(Edge.factory);
// Add vertices
for (Type t : hierarchy) graph.addVertex(Node.get(t));
// Add edges
for (Type t : hierarchy) {
for (Type i : hierarchy.getInterfaces(t)) {
graph.addVertex(Node.get(i));
graph.addEdge(Node.get(t), Node.get(i));
}
Type sc = hierarchy.getSuperclass(t);
if (sc == null) {
assert t.equals(OBJECT) : t;
continue;
}
graph.addVertex(Node.get(sc));
graph.addEdge(Node.get(t), Node.get(sc));
}
// Check for cycles
if (new CycleDetector<Node, Edge>(graph).detectCycles())
throw new CyclicHierarchyException(graph.toString());
return graph;
}
public static int loadFor(Type type) {
if (type.equals(Types.BOOLEAN_VALUE)
|| type.equals(Types.INT_VALUE)
|| type.equals(Types.CHAR)
|| type.equals(Types.SHORT_VALUE)) return Opcodes.ILOAD;
if (type.equals(Types.FLOAT_VALUE)) return Opcodes.FLOAD;
if (type.equals(Types.LONG_VALUE)) return Opcodes.LLOAD;
if (type.equals(Types.DOUBLE_VALUE)) return Opcodes.DLOAD;
return Opcodes.ALOAD;
}
/**
* We've finished processing method, check what annotations were found and then add those that
* weren't
*/
@Override
public void visitEnd() {
outer:
for (Class<? extends Annotation> toAddAnn : toAddAnnotations) {
Type toAddAnnType = Type.getType(toAddAnn);
if (VERBOSE) System.out.println("Annotation: " + toAddAnn);
for (String presentAnn : presentAnnotations) {
if (toAddAnnType.equals(Type.getType(presentAnn))) {
if (VERBOSE)
System.out.println("Annotation already present: " + toAddAnn + " " + presentAnn);
continue outer;
}
}
if (VERBOSE) System.out.println("Adding annotation: " + toAddAnn);
mv.visitAnnotation("L" + toAddAnnType.getInternalName() + ";", true);
}
mv.visitEnd();
}
private InsnList fixInstructions(MethodNode originalMethod, CloneMap cloneMap) {
InsnList instructions = new InsnList();
for (int k = 0; k < originalMethod.instructions.size(); k++) {
AbstractInsnNode originalInsn = originalMethod.instructions.get(k);
switch (originalInsn.getOpcode()) {
// the put on the field granular field is transformed to a fieldref.set
case PUTFIELD:
{
FieldInsnNode fieldInsn = (FieldInsnNode) originalInsn;
ClassMetadata ownerMetadata =
metadataRepository.loadClassMetadata(classLoader, fieldInsn.owner);
FieldMetadata fieldMetadata = ownerMetadata.getFieldMetadata(fieldInsn.name);
Type originalFieldType = Type.getType(fieldMetadata.getDesc());
if (fieldMetadata.hasFieldGranularity()) {
boolean fieldIsCategory2 = isCategory2(fieldMetadata.getDesc());
if (fieldIsCategory2) {
// value(category2), owner,..
instructions.add(new InsnNode(DUP2_X1));
// [value(category2), owner, value(category2),...]
instructions.add(new InsnNode(POP2));
// [owner, value(category2), ...]
} else {
// [value(category1), owner,
instructions.add(new InsnNode(SWAP));
// [owner, value(category1),..
}
String referenceDesc = findReferenceDesc(fieldMetadata.getDesc());
String referenceName = Type.getType(referenceDesc).getInternalName();
instructions.add(
new FieldInsnNode(GETFIELD, fieldInsn.owner, fieldInsn.name, referenceDesc));
if (fieldIsCategory2) {
// [owner, value(category2),..
instructions.add(new InsnNode(DUP_X2));
// [owner, value(category2), owner
instructions.add(new InsnNode(POP));
// [value(category2), owner
} else {
// [owner, value(category1)
instructions.add(new InsnNode(SWAP));
// [value(category1), owner..
}
// call the set
if (originalFieldType.getSort() == Type.ARRAY
|| originalFieldType.getSort() == Type.OBJECT) {
String objectDesc = Type.getDescriptor(Object.class);
MethodInsnNode methodInsn =
new MethodInsnNode(
INVOKEVIRTUAL,
referenceName,
"set",
format("(%s)%s", objectDesc, objectDesc));
instructions.add(methodInsn);
} else {
MethodInsnNode methodInsn =
new MethodInsnNode(
INVOKEVIRTUAL,
referenceName,
"set",
format("(%s)%s", fieldMetadata.getDesc(), fieldMetadata.getDesc()));
instructions.add(methodInsn);
}
// pop the unused return value of the set.
if (fieldIsCategory2) {
instructions.add(new InsnNode(POP2));
} else {
instructions.add(new InsnNode(POP));
}
} else {
instructions.add(originalInsn.clone(cloneMap));
}
}
break;
// the get on the field granular field is transformed to a fieldref.get
case GETFIELD:
{
FieldInsnNode fieldInsn = (FieldInsnNode) originalInsn;
FieldMetadata fieldMetadata =
metadataRepository
.loadClassMetadata(classLoader, fieldInsn.owner)
.getFieldMetadata(fieldInsn.name);
if (!fieldMetadata.hasFieldGranularity()) {
// if it is not getter on a field granular field
instructions.add(originalInsn.clone(cloneMap));
} else {
// it is a getter on a field granular field.
String referenceDesc = findReferenceDesc(fieldMetadata.getDesc());
String referenceName = Type.getType(referenceDesc).getInternalName();
// place the fieldref on the stack.
instructions.add(
new FieldInsnNode(GETFIELD, fieldInsn.owner, fieldInsn.name, referenceDesc));
Type originalFieldType = Type.getType(fieldMetadata.getDesc());
if (originalFieldType.getSort() == Type.ARRAY
|| originalFieldType.getSort() == Type.OBJECT) {
instructions.add(
new MethodInsnNode(
INVOKEVIRTUAL,
referenceName,
"get",
format("()%s", getDescriptor(Object.class))));
if (!originalFieldType.equals(Type.getType(Object.class))) {
instructions.add(
new TypeInsnNode(CHECKCAST, originalFieldType.getInternalName()));
}
} else {
instructions.add(
new MethodInsnNode(
INVOKEVIRTUAL,
referenceName,
"get",
format("()%s", fieldMetadata.getDesc())));
}
}
}
break;
default:
instructions.add(originalInsn.clone(cloneMap));
break;
}
}
return instructions;
}
private void anon(Type type, Object value) {
if (anonType == null) anonType = type;
else if (!anonType.equals(type)) throw new Error();
anon.add(value);
}
@Override
public boolean equals(Object other) {
return this == other
|| !(other == null || getClass() != other.getClass())
&& methodType.equals(((MethodTypeConstant) other).methodType);
}
public void customize(CodeEmitter e, Type type) {
if (type.equals(Constants.TYPE_CLASS)) {
e.invoke_virtual(Constants.TYPE_CLASS, GET_NAME);
}
}
public static void pop(GeneratorAdapter adapter, Type type) {
if (type.equals(Types.DOUBLE_VALUE)) adapter.pop2();
else if (type.equals(Types.VOID)) ;
else adapter.pop();
}
public static int sizeOf(Type type) {
if (type.equals(Types.LONG_VALUE) || type.equals(Types.DOUBLE_VALUE)) return 2;
return 1;
}