/** Generate a call to the delegate object. */
protected MethodVisitor makeDelegateCall(
final String name,
final String desc,
final String signature,
final String[] exceptions,
final int accessFlags) {
MethodVisitor mv = super.visitMethod(accessFlags, name, desc, signature, exceptions);
mv.visitVarInsn(ALOAD, 0); // load this
mv.visitFieldInsn(
GETFIELD,
proxyName,
DELEGATE_OBJECT_FIELD,
BytecodeHelper.getTypeDescription(delegateClass)); // load delegate
// using InvokerHelper to allow potential intercepted calls
int size;
mv.visitLdcInsn(name); // method name
Type[] args = Type.getArgumentTypes(desc);
BytecodeHelper.pushConstant(mv, args.length);
mv.visitTypeInsn(ANEWARRAY, "java/lang/Object");
size = 3;
int idx = 1;
for (int i = 0; i < args.length; i++) {
Type arg = args[i];
mv.visitInsn(DUP);
BytecodeHelper.pushConstant(mv, i);
// primitive types must be boxed
if (isPrimitive(arg)) {
mv.visitIntInsn(getLoadInsn(arg), idx);
String wrappedType = getWrappedClassDescriptor(arg);
mv.visitMethodInsn(
INVOKESTATIC,
wrappedType,
"valueOf",
"(" + arg.getDescriptor() + ")L" + wrappedType + ";");
} else {
mv.visitVarInsn(ALOAD, idx); // load argument i
}
size = Math.max(6, 5 + registerLen(arg));
idx += registerLen(arg);
mv.visitInsn(AASTORE); // store value into array
}
mv.visitMethodInsn(
INVOKESTATIC,
"org/codehaus/groovy/runtime/InvokerHelper",
"invokeMethod",
"(Ljava/lang/Object;Ljava/lang/String;Ljava/lang/Object;)Ljava/lang/Object;");
unwrapResult(mv, desc);
mv.visitMaxs(size, registerLen(args) + 1);
return EMPTY_VISITOR;
}
protected MethodVisitor makeDelegateToClosureCall(
final String name,
final String desc,
final String signature,
final String[] exceptions,
final int accessFlags) {
MethodVisitor mv = super.visitMethod(accessFlags, name, desc, signature, exceptions);
// TraceMethodVisitor tmv = new TraceMethodVisitor(mv);
// mv = tmv;
mv.visitCode();
int stackSize = 0;
// method body should be:
// this.$delegate$closure$methodName.call(new Object[] { method arguments })
Type[] args = Type.getArgumentTypes(desc);
int arrayStore = args.length + 1;
BytecodeHelper.pushConstant(mv, args.length);
mv.visitTypeInsn(ANEWARRAY, "java/lang/Object"); // stack size = 1
stackSize = 1;
int idx = 1;
for (int i = 0; i < args.length; i++) {
Type arg = args[i];
mv.visitInsn(DUP); // stack size = 2
BytecodeHelper.pushConstant(mv, i); // array index, stack size = 3
stackSize = 3;
// primitive types must be boxed
if (isPrimitive(arg)) {
mv.visitIntInsn(getLoadInsn(arg), idx);
String wrappedType = getWrappedClassDescriptor(arg);
mv.visitMethodInsn(
INVOKESTATIC,
wrappedType,
"valueOf",
"(" + arg.getDescriptor() + ")L" + wrappedType + ";");
} else {
mv.visitVarInsn(ALOAD, idx); // load argument i
}
idx += registerLen(arg);
stackSize = Math.max(4, 3 + registerLen(arg));
mv.visitInsn(AASTORE); // store value into array
}
mv.visitVarInsn(ASTORE, arrayStore); // store array
int arrayIndex = arrayStore;
mv.visitVarInsn(ALOAD, 0); // load this
mv.visitFieldInsn(
GETFIELD, proxyName, CLOSURES_MAP_FIELD, "Ljava/util/Map;"); // load closure map
mv.visitLdcInsn(name); // load method name
mv.visitMethodInsn(
INVOKEINTERFACE, "java/util/Map", "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
arrayStore++;
mv.visitVarInsn(ASTORE, arrayStore);
// if null, test if wildcard exists
Label notNull = new Label();
mv.visitIntInsn(ALOAD, arrayStore);
mv.visitJumpInsn(IFNONNULL, notNull);
mv.visitVarInsn(ALOAD, 0); // load this
mv.visitFieldInsn(
GETFIELD, proxyName, CLOSURES_MAP_FIELD, "Ljava/util/Map;"); // load closure map
mv.visitLdcInsn("*"); // load wildcard
mv.visitMethodInsn(
INVOKEINTERFACE, "java/util/Map", "get", "(Ljava/lang/Object;)Ljava/lang/Object;");
mv.visitVarInsn(ASTORE, arrayStore);
mv.visitLabel(notNull);
mv.visitVarInsn(ALOAD, arrayStore);
mv.visitMethodInsn(
INVOKESTATIC,
BytecodeHelper.getClassInternalName(this.getClass()),
"ensureClosure",
"(Ljava/lang/Object;)Lgroovy/lang/Closure;");
mv.visitVarInsn(ALOAD, arrayIndex); // load argument array
stackSize++;
mv.visitMethodInsn(
INVOKEVIRTUAL,
"groovy/lang/Closure",
"call",
"([Ljava/lang/Object;)Ljava/lang/Object;"); // call closure
unwrapResult(mv, desc);
mv.visitMaxs(stackSize, arrayStore + 1);
mv.visitEnd();
// System.out.println("tmv.getText() = " + tmv.getText());
return EMPTY_VISITOR;
}
@Override
public void nodeDispatch(String suffix, int divide, int start, int end) {
MethodVisitor mv;
mv = cw.visitMethod(ACC_PRIVATE, name() + suffix, signature(), null, null);
mv.visitCode();
Label startLabel = new Label();
mv.visitLabel(startLabel);
final int powerOfTwo = Integer.numberOfTrailingZeros(divide);
int sStart = start >> powerOfTwo;
int sEnd = end >> powerOfTwo;
int left = end - (sEnd << powerOfTwo);
if (left > 0) {
sEnd++;
}
Label[] labels = newLabels(sEnd - sStart);
Label defaultLabel = new Label();
mv.visitVarInsn(ILOAD, argIndex());
int sub = leafStart();
if (sub != 0) {
AsmUtils.addIndex(mv, sub);
mv.visitInsn(ISUB);
}
AsmUtils.addIndex(mv, powerOfTwo);
mv.visitInsn(ISHR);
mv.visitVarInsn(ISTORE, maxArgIndex() + 1);
mv.visitVarInsn(ILOAD, maxArgIndex() + 1);
mv.visitTableSwitchInsn(sStart, sEnd - 1, defaultLabel, labels);
for (int i = sStart; i < sEnd; i++) {
int estart = i << powerOfTwo;
int eend = Math.min(end, (i + 1) << powerOfTwo);
mv.visitLabel(labels[i - sStart]);
if (i == start) {
mv.visitFrame(Opcodes.F_APPEND, 1, new Object[] {Opcodes.INTEGER}, 0, null);
} else {
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
}
loadArguments(mv);
mv.visitMethodInsn(
INVOKESPECIAL,
classType,
name() + (divide / maxMethodSize) + "n" + estart + "t" + eend,
signature(),
false);
if (isVoid()) {
if (i < (sEnd - 1)) {
mv.visitJumpInsn(GOTO, defaultLabel);
}
} else {
mv.visitInsn(ARETURN);
}
}
mv.visitLabel(defaultLabel);
mv.visitFrame(Opcodes.F_SAME, 0, null, 0, null);
if (isVoid()) {
mv.visitInsn(RETURN);
} else {
mv.visitInsn(ACONST_NULL);
mv.visitInsn(ARETURN);
}
Label endLabel = new Label();
mv.visitLabel(endLabel);
appendDebugInfo(mv, startLabel, endLabel);
mv.visitMaxs(6, 5);
mv.visitEnd();
}