private static JCExpression cloneType0(TreeMaker maker, JCTree in) {
if (in == null) return null;
if (in instanceof JCPrimitiveTypeTree) return (JCExpression) in;
if (in instanceof JCIdent) {
return maker.Ident(((JCIdent) in).name);
}
if (in instanceof JCFieldAccess) {
JCFieldAccess fa = (JCFieldAccess) in;
return maker.Select(cloneType0(maker, fa.selected), fa.name);
}
if (in instanceof JCArrayTypeTree) {
JCArrayTypeTree att = (JCArrayTypeTree) in;
return maker.TypeArray(cloneType0(maker, att.elemtype));
}
if (in instanceof JCTypeApply) {
JCTypeApply ta = (JCTypeApply) in;
ListBuffer<JCExpression> lb = ListBuffer.lb();
for (JCExpression typeArg : ta.arguments) {
lb.append(cloneType0(maker, typeArg));
}
return maker.TypeApply(cloneType0(maker, ta.clazz), lb.toList());
}
if (in instanceof JCWildcard) {
JCWildcard w = (JCWildcard) in;
JCExpression newInner = cloneType0(maker, w.inner);
TypeBoundKind newKind;
switch (w.getKind()) {
case SUPER_WILDCARD:
newKind = maker.TypeBoundKind(BoundKind.SUPER);
break;
case EXTENDS_WILDCARD:
newKind = maker.TypeBoundKind(BoundKind.EXTENDS);
break;
default:
case UNBOUNDED_WILDCARD:
newKind = maker.TypeBoundKind(BoundKind.UNBOUND);
break;
}
return maker.Wildcard(newKind, newInner);
}
// This is somewhat unsafe, but it's better than outright throwing an exception here. Returning
// null will just cause an exception down the pipeline.
return (JCExpression) in;
}
public static JCExpression cloneSelfType(JavacNode field) {
JavacNode typeNode = field;
TreeMaker maker = field.getTreeMaker();
while (typeNode != null && typeNode.getKind() != Kind.TYPE) typeNode = typeNode.up();
if (typeNode != null && typeNode.get() instanceof JCClassDecl) {
JCClassDecl type = (JCClassDecl) typeNode.get();
ListBuffer<JCExpression> typeArgs = ListBuffer.lb();
if (!type.typarams.isEmpty()) {
for (JCTypeParameter tp : type.typarams) {
typeArgs.append(maker.Ident(tp.name));
}
return maker.TypeApply(maker.Ident(type.name), typeArgs.toList());
} else {
return maker.Ident(type.name);
}
} else {
return null;
}
}
