On 18.08.23 00:09, Mattias Gaertner via fpc-devel wrote:
[...]
Another point where it could wrong, is a generic method.
For example:
type
TBird<T> = class
procedure Fly<S>; // fpc does not yet allow this
end;
var
a: TBird<double>;
b: TBird<TDateTime>;
begin
a:=b;
a.Fly<word>; // this might call the wrong specialization or even call
a non existing method
end;
So with class vars, generic methods and sub types the assignment must be
forbidden.
Maybe pas2js could allow it for simple arrays, pointers, records and
classes.
Mattias
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