Request for feedback: deriving strategies syntax
Kosyrev Serge
_deepfire at feelingofgreen.ru
Wed Aug 3 23:37:19 UTC 2016
Kosyrev Serge <_deepfire at feelingofgreen.ru> writes:
> How much of this derivation machinery could NOT be implemented by means of
> some kind of a (hypothetical) type-backed metaprogramming facility?
>
> The beauty of an open implementation[1] allowed by such a thing is that:
I apologize for the unfortunate metacircular logic in the below passage:
> 1. uniformity of definition of the desugaring transformation
> would have followed, and from that:
>
> - the "bespoke" derivation mechanism will suddenly become
> explainable in a language shared by all derivation mechanisms:
>
> - the separate derivation strategies as separate, named macro
> transformations, using a common library of type-level and other
> tools -- mostly those already in existence
> - the combined strategy as an overarching macro tranformation
It should instead read as:
1. uniformity of expression of the desugaring transformation
would have followed, in the following way:
- the overall derivation mechanism is to become expressible
through the following composition:
- the separate derivation strategies are to become separate,
named macro transformations, using a common library of
type-level and other tools -- mostly those already in
existence
- this aforementioned common library is explicitly required to
be sufficiently powerful to able to express the "bespoke"
derivation mechanism
- the combined strategy as an overarching macro tranformation
The rest stands as is:
> 2. because of above, we get a starting point from which we can
> evolve something that can be meaningfully standartized, without a
> feeling of shame or guilt -- we now have a language describing the
> problem domain, that can be un-tied from a particular implementation
>
> 3. in-editor macroexpansion is a proven, working concept in the realm
> of Proper Metaprogramming (viz. Common Lisp etc.), and it would
> basically eliminate guesswork from user workflows
>
> ..or is this all a violent pipe dream?
--
с уважениeм / respectfully,
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