[fpc-devel] FPC 2.3.1 SVN 8427: new compilation error.
jonas.maebe at elis.ugent.be
Wed Sep 12 10:44:50 CEST 2007
On 12 Sep 2007, at 09:47, Micha Nelissen wrote:
> Michael Schnell wrote:
>> Theoretically a write to the property _could_ be compiled into a
>> call to the set method. But with that the called function would
>> need code to detect if the var parameter is a property and act
>> accordingly. Though a nice feature, IMHO it would make things so
>> complicated that it does not make much sense.
> It doesn't have to detect, the compiler would generate a temp like:
Apart from being pretty slow, this also has different semantics than
a var parameter. Suppose you modify the var parameter in the callee,
and then call another method of the original class instance from the
callee -> this method will see the original value of the field/
property rather than the modified "var" parameter.
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