/** Return the declared type of this member, which must be a method or constructor. */
public MethodType getMethodType() {
if (type == null) {
expandFromVM();
if (type == null) return null;
}
if (!isInvocable()) throw newIllegalArgumentException("not invocable, no method type");
if (type instanceof MethodType) {
return (MethodType) type;
}
if (type instanceof String) {
String sig = (String) type;
MethodType res = MethodType.fromMethodDescriptorString(sig, getClassLoader());
this.type = res;
return res;
}
if (type instanceof Object[]) {
Object[] typeInfo = (Object[]) type;
Class<?>[] ptypes = (Class<?>[]) typeInfo[1];
Class<?> rtype = (Class<?>) typeInfo[0];
MethodType res = MethodType.methodType(rtype, ptypes);
this.type = res;
return res;
}
throw new InternalError("bad method type " + type);
}
/**
* Return the declared type of this member, which must be a field or type. If it is a type member,
* that type itself is returned.
*/
public Class<?> getFieldType() {
if (type == null) {
expandFromVM();
if (type == null) return null;
}
if (isInvocable())
throw newIllegalArgumentException("not a field or nested class, no simple type");
if (type instanceof Class<?>) {
return (Class<?>) type;
}
if (type instanceof String) {
String sig = (String) type;
MethodType mtype = MethodType.fromMethodDescriptorString("()" + sig, getClassLoader());
Class<?> res = mtype.returnType();
this.type = res;
return res;
}
throw new InternalError("bad field type " + type);
}