[fpc-devel] for .. in documentation and classes based iterators.

Michael Van Canneyt michael at freepascal.org
Tue Sep 3 12:59:13 CEST 2019

On Tue, 3 Sep 2019, Marco van de Voort wrote:

> I did an initial patch to add for..in iterator support in fcl-stl 
> ghashmap (https://bugs.freepascal.org/view.php?id=35940)
> I've looked at the docs of for..in, and it doesn't seem to name the 
> delphi getenumerator() method in its options. I assume it is equal to 
> point 5, the enumerator operator, because a for..in this way doesn't 
> cause a memory leak.
> "5. Any type for which an enumerator operator is defined. The enumerator 
> operator must return a structured type that implements the IEnumerator 
> interface. The type of the control variable’s type must equal the type 
> of the enumerator’s GetCurrent return value type."
> but maybe that could be said more explicitly?

What should be said more explicitly ?


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