[Agda] type annotation in-place

[Jesper Cockx]

I meant syntax declaration, not a pattern synonym.

Jesper

On Wed, Oct 7, 2015 at 2:34 PM, Jesper Cockx <Jesper at sikanda.be> wrote:

> I'm not sure if I understand. With _∋_, you could write
>
> foo123foo = Foo ∋ foo'
>>
>> foo = Foo ∋ foo' (T ∋ f x) y
>>
>
> You could also use a pattern synonym to put the type signature after the
> term instead of before:
>
> El : ∀ {a} (A : Set a) → A → A
>> El A x = x
>>
>> syntax El A x = x ∈ A
>>
>
>
>> foo123foo = foo' ∈ Foo
>>
>> foo = foo' (f x ∈ T) y ∈ Foo
>>
>
>
>
>
>
> On Wed, Oct 7, 2015 at 2:01 PM, Sergei Meshveliani <mechvel at botik.ru>
> wrote:
>
>> On Wed, 2015-10-07 at 13:54 +0200, Jesper Cockx wrote:
>> > From Function.agda in the standard library:
>> >
>> >         -- In Agda you cannot annotate every subexpression with a type
>> >         -- signature. This function can be used instead.
>> >
>> >         _∋_ : ∀ {a} (A : Set a) → A → A
>> >         A ∋ x = x
>> >
>> >
>> > Does this solve your problem?
>> >
>>
>> No. I meant the implementation part -- the part after  `` = ''.
>>
>> ------
>> Sergei
>>
>>
>>
>>
>> > On Wed, Oct 7, 2015 at 1:41 PM, Sergei Meshveliani <mechvel at botik.ru>
>> > wrote:
>> >         Is it possible to allow in Language the syntax like
>> >
>> >           foo123foo = foo' : Foo
>> >
>> >         (instead of
>> >           foo123foo : Foo
>> >           foo123foo = foo'
>> >         )
>> >         ?
>> >
>> >         And one also could think of expressions like
>> >
>> >           foo = foo' (f x : T) y  : Foo
>> >
>> >         This will make programs a bit more readable.
>> >
>> >         Regards,
>> >
>> >         ------
>> >         Sergei
>> >
>> >         _______________________________________________
>> >         Agda mailing list
>> >         Agda at lists.chalmers.se
>> >         https://lists.chalmers.se/mailman/listinfo/agda
>> >
>> >
>>
>>
>>
>
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