/**
* Creates a new {@link LocalVariablesSorter}.
*
* @param access access flags of the adapted method.
* @param desc the method's descriptor (see {@link Type Type}).
* @param mv the method visitor to which this adapter delegates calls.
*/
public LocalVariablesSorter(final int access, final String desc, final MethodVisitor mv) {
super(mv);
Type[] args = Type.getArgumentTypes(desc);
nextLocal = (Opcodes.ACC_STATIC & access) != 0 ? 0 : 1;
for (int i = 0; i < args.length; i++) {
nextLocal += args[i].getSize();
}
firstLocal = nextLocal;
}
/**
* Creates a new {@link AnalyzerAdapter}.
*
* @param api the ASM API version implemented by this visitor. Must be one of {@link Opcodes#ASM4}
* or {@link Opcodes#ASM5}.
* @param owner the owner's class name.
* @param access the method's access flags (see {@link Opcodes}).
* @param name the method's name.
* @param desc the method's descriptor (see {@link Type Type}).
* @param mv the method visitor to which this adapter delegates calls. May be <tt>null</tt>.
*/
protected AnalyzerAdapter(
final int api,
final String owner,
final int access,
final String name,
final String desc,
final MethodVisitor mv) {
super(api, mv);
this.owner = owner;
locals = new ArrayList<Object>();
stack = new ArrayList<Object>();
uninitializedTypes = new HashMap<Object, Object>();
if ((access & Opcodes.ACC_STATIC) == 0) {
if ("<init>".equals(name)) {
locals.add(Opcodes.UNINITIALIZED_THIS);
} else {
locals.add(owner);
}
}
Type[] types = Type.getArgumentTypes(desc);
for (int i = 0; i < types.length; ++i) {
Type type = types[i];
switch (type.getSort()) {
case Type.BOOLEAN:
case Type.CHAR:
case Type.BYTE:
case Type.SHORT:
case Type.INT:
locals.add(Opcodes.INTEGER);
break;
case Type.FLOAT:
locals.add(Opcodes.FLOAT);
break;
case Type.LONG:
locals.add(Opcodes.LONG);
locals.add(Opcodes.TOP);
break;
case Type.DOUBLE:
locals.add(Opcodes.DOUBLE);
locals.add(Opcodes.TOP);
break;
case Type.ARRAY:
locals.add(types[i].getDescriptor());
break;
// case Type.OBJECT:
default:
locals.add(types[i].getInternalName());
}
}
maxLocals = locals.size();
}
private void pop(final String desc) {
char c = desc.charAt(0);
if (c == '(') {
int n = 0;
Type[] types = Type.getArgumentTypes(desc);
for (int i = 0; i < types.length; ++i) {
n += types[i].getSize();
}
pop(n);
} else if (c == 'J' || c == 'D') {
pop(2);
} else {
pop(1);
}
}
