Martin schrieb:
Inc(MyObj.MyIntProperty);
=>
var
temp: Integer;
begin
temp := MyObj.MyIntProperty;
Inc(temp);
MyObj.MyIntProperty := temp;
end;
Of course, if the compiler determines that the property is an alias
for a field,
it is free to pass the field directly -- but this is only an optimization
I had the same ideas once too.
The answer was that properties are meant to change the value on the
object immediately. Also a property setter can raise an exception, or
additional actions can take place or the value can be substituted....
All this wouldn't happen with a temp variable (or at best deferred).
This *also* will happen in the above code, when the temporary variable
is loaded or stored.
When the compiler erroneously bypassed getters and setters in the past,
this error could have been fixed in that place, without any further
impact on existing (compiler and application) code.
DoDi
--
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