shrub/pkg/arvo/lib/language-server/complete.hoon
2020-01-28 12:24:39 +10:00

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/+ language-server-parser
:: Autocomplete for hoon.
::
=/ debug |
|%
+* option [item]
[term=cord detail=item]
::
:: Like +rose except also produces line number
::
++ lily
|* {los/tape sab/rule}
=+ vex=(sab [[1 1] los])
?~ q.vex
[%| p=p.vex(q (dec q.p.vex))]
?. =(~ q.q.u.q.vex)
[%| p=p.vex(q (dec q.p.vex))]
[%& p=p.u.q.vex]
::
:: Get all the identifiers accessible if this type is your subject.
::
++ get-identifiers
|= ty=type
%- flop
|- ^- (list (option type))
?- ty
%noun ~
%void ~
[%atom *] ~
[%cell *]
%+ weld
$(ty p.ty)
$(ty q.ty)
::
[%core *]
%- weld
:_ ?. ?=(%gold r.p.q.ty)
~
$(ty p.ty)
^- (list (option type))
%- zing
%+ turn ~(tap by q.r.q.ty)
|= [term =tome]
%+ turn
~(tap by q.tome)
|= [name=term =hoon]
^- (pair term type)
~| term=term
[name ~(play ~(et ut ty) ~[name] ~)]
::
[%face *]
?^ p.ty
~
[p.ty q.ty]~
::
[%fork *]
%= $
ty
=/ tines ~(tap in p.ty)
?~ tines
%void
|- ^- type
?~ t.tines
i.tines
(~(fuse ut $(tines t.tines)) i.tines)
==
::
[%hint *] $(ty q.ty)
[%hold *] $(ty ~(repo ut ty))
==
::
++ search-exact
|* [sid=term options=(list (option))]
=/ match
%+ skim options
|= [id=cord *]
=(sid id)
?~ match
~
[~ i.match]
::
:: Get all the identifiers that start with sid.
::
++ search-prefix
|* [sid=cord ids=(list (option))]
^+ ids
%+ skim ids
|= [id=cord *]
^- ?(%.y %.n)
=(sid (end 3 (met 3 sid) id))
::
:: Get the longest prefix of a list of identifiers.
::
++ longest-match
|= matches=(list (option))
^- cord
?~ matches
''
=/ n 1
=/ last (met 3 term.i.matches)
|- ^- term
?: (gth n last)
term.i.matches
=/ prefix (end 3 n term.i.matches)
?: |- ^- ?
?| ?=(~ t.matches)
?& =(prefix (end 3 n term.i.t.matches))
$(t.matches t.t.matches)
== ==
$(n +(n))
(end 3 (dec n) term.i.matches)
::
:: Run +find-type safely, printing the first line of the stack trace on
:: error.
::
++ find-type-mule
|= [sut=type gen=hoon]
^- (unit [term type])
=/ res (mule |.((find-type sut gen)))
?- -.res
%& p.res
%| ((slog (flop (scag 10 p.res))) ~)
==
::
:: Get the subject type of the wing where you've put the "magic-spoon".
::
++ find-type
|= [sut=type gen=hoon]
=* loop $
|^
^- (unit [term type])
?- gen
[%cnts [%magic-spoon ~] *] `['' sut]
[%cnts [%magic-spoon @ ~] *] `[i.t.p.gen sut]
[%cnts [%magic-spoon @ *] *]
%= $
sut (~(play ut sut) wing+t.t.p.gen)
t.p.gen t.p.gen(t ~)
==
::
[%cnts [%magic-fork @ ~] *]
`['' (~(play ut sut) wing+t.p.gen)]
::
[^ *] (both p.gen q.gen)
[%ktcn *] loop(gen p.gen)
[%brcn *] (grow q.gen)
[%brvt *] (grow q.gen)
[%cnts *]
|- ^- (unit [term type])
=* inner-loop $
?~ q.gen
~
%+ replace
loop(gen q.i.q.gen)
|. inner-loop(q.gen t.q.gen)
::
[%dtkt *] (spec-and-hoon p.gen q.gen)
[%dtls *] loop(gen p.gen)
[%rock *] ~
[%sand *] ~
[%tune *] ~
[%dttr *] (both p.gen q.gen)
[%dtts *] (both p.gen q.gen)
[%dtwt *] loop(gen p.gen)
[%hand *] ~
[%ktbr *] loop(gen p.gen)
[%ktls *] (both p.gen q.gen)
[%ktpd *] loop(gen p.gen)
[%ktsg *] loop(gen p.gen)
[%ktwt *] loop(gen p.gen)
[%note *] loop(gen q.gen)
[%sgzp *] (both p.gen q.gen)
[%sgbn *] loop(gen q.gen) :: should check for hoon in p.gen
[%tsbn *] (change p.gen q.gen)
[%tscm *]
%+ replace
loop(gen p.gen)
|.(loop(gen q.gen, sut (~(busk ut sut) p.gen)))
::
[%wtcl *] (bell p.gen q.gen r.gen)
[%fits *] (both p.gen wing+q.gen)
[%wthx *] loop(gen wing+q.gen)
[%dbug *] loop(gen q.gen)
[%zpcm *] (both p.gen q.gen)
[%lost *] loop(gen p.gen)
[%zpmc *] (both p.gen q.gen)
[%zpts *] loop(gen p.gen)
[%zpvt *] (both q.gen r.gen)
[%zpzp *] ~
*
=+ doz=~(open ap gen)
?: =(doz gen)
~_ (show [%c 'hoon'] [%q gen])
~> %mean.'play-open'
!!
loop(gen doz)
==
::
++ replace
|= [a=(unit [term type]) b=(trap (unit [term type]))]
^- (unit [term type])
?~(a $:b a)
::
++ both
|= [a=hoon b=hoon]
(replace loop(gen a) |.(loop(gen b)))
::
++ bell
|= [a=hoon b=hoon c=hoon]
%+ replace loop(gen a)
|. %+ replace loop(gen b, sut (~(gain ut sut) a))
|. loop(gen c, sut (~(lose ut sut) a))
::
++ spec-and-hoon
|= [a=spec b=hoon]
(replace (find-type-in-spec sut a) |.(loop(gen b)))
::
++ change
|= [a=hoon b=hoon]
(replace loop(gen a) |.(loop(gen b, sut (~(play ut sut) a))))
::
++ grow
|= m=(map term tome)
=/ tomes ~(tap by m)
|- ^- (unit [term type])
=* outer-loop $
?~ tomes
~
=/ arms ~(tap by q.q.i.tomes)
|- ^- (unit [term type])
=* inner-loop $
?~ arms
outer-loop(tomes t.tomes)
%+ replace
loop(gen q.i.arms, sut (~(play ut sut) gen))
|. inner-loop(arms t.arms)
--
::
:: Not implemented yet. I wonder whether we should modify types found
:: in spec mode such that if it's a mold that produces a type, it
:: should just display the type and not that it's technically a
:: function.
::
++ find-type-in-spec
|= [sut=type pec=spec]
^- (unit [term type])
~
::
++ get-id
|= [pos=@ud txt=tape]
^- [forward=(unit term) backward=(unit term) id=(unit term)]
=/ forward=(unit term)
%+ scan `tape`(slag pos txt)
;~(sfix (punt sym) (star ;~(pose prn (just `@`10))))
=/ backward=(unit term)
%- (lift |=(t=@tas (swp 3 t)))
%+ scan `tape`(flop (scag pos txt))
;~(sfix (punt sym) (star ;~(pose prn (just `@`10))))
=/ id=(unit term)
?~ forward
?~ backward
~
`u.backward
?~ backward
`u.forward
`(cat 3 u.backward u.forward)
[forward backward id]
::
:: Insert magic marker in hoon source at the given position.
::
++ insert-magic
|= [pos=@ud txt=tape]
^- [back-pos=@ud fore-pos=@ud txt=tape]
:: Find beg-pos by searching backward to where the current term
:: begins
=+ (get-id pos txt)
=/ back-pos
?~ backward
pos
(sub pos (met 3 u.backward))
=/ fore-pos
?~ forward
pos
(add pos (met 3 u.forward))
:+ back-pos fore-pos
:: Insert "magic-spoon" marker so +find-type can identify where to
:: stop.
::
;: weld
(scag back-pos txt)
?: &(?=(~ id) ?=([%'.' *] (slag pos txt)))
"magic-fork"
"magic-spoon"
?~ id
""
"."
(slag back-pos txt)
"\0a"
==
::
:: Produce the longest possible advance without choosing between
:: matches.
::
:: Takes a +hoon which has already has a magic-spoon marker. Useful if
:: you want to handle your own parsing.
::
++ advance-hoon
|= [sut=type gen=hoon]
%+ bind (find-type-mule sut gen)
|= [id=term typ=type]
=/ matches=(list (option type))
(search-prefix id (get-identifiers typ))
(longest-match matches)
::
:: Same as +advance-hoon, but takes a position and text directly.
::
++ advance-tape
|= [sut=type pos=@ud code=tape]
(advance-hoon sut (scan txt:(insert-magic pos code) vest))
::
:: Produce a list of matches.
::
:: Takes a +hoon which has already has a magic-spoon marker. Useful if
:: you want to handle your own parsing.
::
++ tab-list-hoon
|= [sut=type gen=hoon]
^- (unit (list (option type)))
%+ bind (find-type-mule sut gen)
|= [id=term typ=type]
(search-prefix id (get-identifiers typ))
::
:: Same as +advance-hoon, but takes a position and text directly.
::
++ tab-list-tape
|= [sut=type pos=@ud code=tape]
^- (each (unit (list (option type))) [row=@ col=@])
~? > debug %start-magick
=/ magicked txt:(insert-magic pos code)
~? > debug %start-parsing
=/ res (lily magicked (language-server-parser *beam))
?: ?=(%| -.res)
~? > debug [%parsing-error p.res]
[%| p.res]
:- %&
~? > debug %parsed-good
((cury tab-list-hoon sut) tssg+sources.p.res)
--