Hi Hannes,

> On 4 Feb 2015, at 23:58, Hannes Magnusson <hannes.magnus...@gmail.com> wrote:
> 
> So what it supports "more inputs"?
> It does constitute an LSP violation. "more inputs" is not what the
> guarantee is at all, if that is what you want you'd typehint on a
> interface.
> 
> 
> It is a LSP failure to allow a string, or any other scalar value, when
> the parent requires a specific type/object.
> 
> It sucks that we fail our arginfo very frequently, but this is the way it is 
> :]

An interface requires only a minimum standard for accepted input. If a class 
implementing that interface allows a wider range of values, but still allows at 
least what the interface requires it to, it is not an LSP violation. Scalars 
are not special.
--
Andrea Faulds
http://ajf.me/





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