/**
* This name may be a bit misleading, since this also attempts to coerce array behavior using
* to_ary.
*
* @param runtime The JRuby runtime
* @param value The value to convert
* @param coerce Whether to coerce using to_ary or just wrap with an array
*/
public static RubyArray convertToRubyArray(Ruby runtime, IRubyObject value, boolean coerce) {
if (value == null) {
return RubyArray.newEmptyArray(runtime);
}
if (coerce) return convertToRubyArrayWithCoerce(runtime, value);
// don't attempt to coerce to array, just wrap and return
return RubyArray.newArrayLight(runtime, value);
}
public static RubyArray convertToRubyArrayWithCoerce(Ruby runtime, IRubyObject value) {
if (value instanceof RubyArray) return ((RubyArray) value);
IRubyObject newValue = TypeConverter.convertToType(value, runtime.getArray(), "to_ary", false);
if (newValue.isNil()) {
return RubyArray.newArrayLight(runtime, value);
}
// empirically it appears that to_ary coersions always return array or nil, so this
// should always be an array by now.
return (RubyArray) newValue;
}
public static RubyArray convertToRubyArrayWithCoerce(Ruby runtime, IRubyObject value) {
if (value instanceof RubyArray) return ((RubyArray) value);
IRubyObject newValue = TypeConverter.convertToType(value, runtime.getArray(), "to_ary", false);
if (newValue.isNil()) {
return RubyArray.newArrayLight(runtime, value);
}
// must be array by now, or error
if (!(newValue instanceof RubyArray)) {
throw runtime.newTypeError(newValue.getMetaClass() + "#" + "to_ary" + " should return Array");
}
return (RubyArray) newValue;
}