I started in on this already and here’s the first conflict I found when trying
operators.
What should happen if you assign a record to another record with a default
property?
var
wrapper: TWrapper;
other: TWrapper;
// this should assign to ‘obj’ via the default property
wrapper := TObject.Create;
// what happens here? is this a wrong type error (TObject is expected but got
TWrapper) or do we assign directly to the base record? I can see it both ways
so I’m not sure what principle to fall back on. Allow it because we can or
prevent it because it’s not intended functionality?
wrapper := other;
type
TWrapper = record
obj: TObject;
property _default: TObject read obj write obj; default;
class operator + (left: TWrapper; right: integer): TWrapper;
end;
class operator TWrapper.+ (left: TWrapper; right: integer): TWrapper;
begin
// error here
result := left;
end;
Regards,
Ryan Joseph
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