[Haskell-cafe] Constructors on left and right hand sides of equation

[PATRICK BROWNE]

On 18 September 2014 03:08, Richard A. O'Keefe <ok at cs.otago.ac.nz> wrote:

> The question question is "what do you MEAN by 'are they distinct'"?
>
> They are two distinct references to a single binding occurrence
> of an identifier.  In Eq1, the first occurrence is in a pattern,
> and the second is in an expression.
>


Thanks for the feedback.
If both occurrences of (NewGlass i) in Eq1 reference the same object in
memory then I would consider them to be the same.
If they reference different objects I would consider them to be equal but
not the same.
Is (Fill m i ) in Eq 2 a type constructor? Is it treated the same as the
data constructor (NewGlass i)?

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