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urbit/pkg/arvo/app/language-server.hoon
2022-03-08 10:13:04 -05:00

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/- lsp-sur=language-server
/+ *server,
auto=language-server-complete,
lsp-parser=language-server-parser,
easy-print=language-server-easy-print,
rune-snippet=language-server-rune-snippet,
build=language-server-build,
default-agent, verb, dbug
|%
+$ card card:agent:gall
+$ lsp-req
$: uri=@t
$% [%sync changes=(list change)]
[%completion position]
[%commit @ud]
[%hover position]
==
==
::
+$ change
$: range=(unit range)
range-length=(unit @ud)
text=@t
==
::
+$ range
$: start=position
end=position
==
::
+$ position
[row=@ud col=@ud]
::
+$ state-zero
$: %0
bufs=(map uri=@t buf=wall)
builds=(map uri=@t =vase)
ford-diagnostics=(map uri=@t (list diagnostic:lsp-sur))
preludes=(map uri=@t type)
==
+$ versioned-state
$%
state-zero
==
--
^- agent:gall
%- agent:dbug
%+ verb |
=| state-zero
=* state -
=<
|_ =bowl:gall
+* this .
lsp-core +>
lsp ~(. lsp-core bowl)
def ~(. (default-agent this %|) bowl)
::
++ on-init
^+ on-init:*agent:gall
^- (quip card _this)
~& > %lsp-init
:_ this :_ ~
:* %pass /connect
%arvo %e
%connect [~ /'~language-server-protocol'] %language-server
==
::
++ on-save !>(state)
++ on-load
^+ on-load:*agent:gall
|= old-state=vase
^- (quip card _this)
~& > %lsp-upgrade
[~ this(state !<(state-zero old-state))]
::
++ on-poke
^+ on-poke:*agent:gall
|= [=mark =vase]
^- (quip card _this)
=^ cards state
?+ mark (on-poke:def mark vase)
%language-server-rpc-notification
(on-notification:lsp !<(all:notification:lsp-sur vase))
%language-server-rpc-request
(on-request:lsp !<(all:request:lsp-sur vase))
==
[cards this]
::
++ on-watch
|= =path
?: ?=([%primary ~] path)
`this
?. ?=([%http-response @ ~] path)
(on-watch:def path)
`this
++ on-leave on-leave:def
++ on-peek on-peek:def
++ on-agent on-agent:def
++ on-arvo
^+ on-arvo:*agent:gall
|= [=wire =sign-arvo]
^- (quip card _this)
=^ cards state
?+ sign-arvo (on-arvo:def wire sign-arvo)
[%eyre %bound *] `state
[%clay *] (handle-build:lsp wire +.sign-arvo)
==
[cards this]
::
++ on-fail on-fail:def
--
::
|_ bow=bowl:gall
::
++ json-response
|= [eyre-id=@ta jon=json]
^- (list card)
(give-simple-payload:app eyre-id (json-response:gen jon))
::
++ give-rpc-notification
|= res=out:notification:lsp-sur
^- (list card)
:_ ~
[%give %fact ~[/primary] %language-server-rpc-notification !>(res)]
::
++ on-notification
|= not=all:notification:lsp-sur
^- (quip card _state)
=^ cards state
?+ -.not [~ state]
%text-document--did-open (handle-did-open +.not)
%text-document--did-change (handle-did-change +.not)
%text-document--did-save (handle-did-save +.not)
%text-document--did-close (handle-did-close +.not)
%exit handle-exit
==
[cards state]
++ on-request
|= req=all:request:lsp-sur
^- (quip card _state)
=^ cards state
?+ -.req [~ state]
%text-document--hover (handle-hover req)
%text-document--completion (handle-completion req)
==
[cards state]
::
++ get-subject
|= uri=@t
^- type
(~(gut by preludes) uri -:!>(..zuse))
::
++ handle-completion
|= com=text-document--completion:request:lsp-sur
^- (quip card _state)
:_ state
%^ give-rpc-response %text-document--completion id.com
=/ buf=wall
(~(got by bufs) uri.com)
=/ txt=tape
(zing (join "\0a" buf))
=/ pos
(get-pos buf row.com col.com)
=/ rune (rune-snippet (swag [(safe-sub pos 2) 2] txt))
?^ rune rune
=/ tab-list
%^ tab-list-tape:auto
(~(gut by preludes) uri.com -:!>(..zuse))
pos txt
?: ?=(%| -.tab-list) ~
?~ p.tab-list ~
?~ u.p.tab-list ~
(turn u.p.tab-list make-completion-item)
::
++ make-completion-item
|= [name=term =type]
^- completion-item:lsp-sur
=/ doc
%- crip
;: weld
"`"
~(ram re ~(duck easy-print type))
"`"
==
[name 1 doc '' name 1]
::
++ give-rpc-response
|= res=all:response:lsp-sur
^- (list card)
:_ ~
[%give %fact ~[/primary] %language-server-rpc-response !>(res)]
::
++ handle-exit
^- (quip card _state)
~& > %lsp-shutdown
:_ *state-zero
%+ turn
~(tap in ~(key by builds))
|= uri=@t
[%pass /ford/[uri] %arvo %c %warp our.bow %base ~]
::
++ handle-did-close
|= [uri=@t version=(unit @)]
^- (quip card _state)
=. bufs
(~(del by bufs) uri)
=. ford-diagnostics
(~(del by ford-diagnostics) uri)
=. builds
(~(del by builds) uri)
:_ state
[%pass /ford/[uri] %arvo %c %warp our.bow %base ~]~
::
++ handle-did-save
|= [uri=@t version=(unit @)]
^- (quip card _state)
:_ state
:_ (give-rpc-notification (get-diagnostics uri))
:*
%pass
/commit
%agent
[our.bow %hood]
%poke
%kiln-commit
!>([q.byk.bow |])
==
::
++ handle-did-change
|= [document=versioned-doc-id:lsp-sur changes=(list change:lsp-sur)]
^- (quip card _state)
=/ updated=wall
(sync-buf (~(got by bufs) uri.document) changes)
=. bufs
(~(put by bufs) uri.document updated)
`state
::
++ handle-build
|= [=path =gift:clay]
^- (quip card _state)
?> ?=([%writ *] gift)
=/ uri=@t
(snag 1 path)
=/ loc=^path (uri-to-path:build uri)
=; [res=(quip card _state) dek=desk]
[(snoc -.res (build-file | uri loc `dek)) +.res]
?~ p.gift
[[~ state] %base]
=. builds
(~(put by builds) uri q.r.u.p.gift)
=. ford-diagnostics
(~(del by ford-diagnostics) uri)
=/ bek byk.bow(r da+now.bow)
=/ desks=(list desk) ~(tap in .^((set desk) %cd (en-beam bek /)))
=| dek=desk
|-
?~ desks [[~ state] %base]
=. dek ?: =(%kids i.desks) %base i.desks
=/ exists=? .^(? %cu (en-beam bek(q dek) loc))
?. exists $(desks t.desks)
=+ .^(=open:clay %cs /(scot %p our.bow)/[dek]/(scot %da now.bow)/open/foo)
=/ =type -:(open loc)
=. preludes
(~(put by preludes) uri type)
:_ dek
:_ state
(give-rpc-notification (get-diagnostics uri))
::
++ get-diagnostics
|= uri=@t
^- out:notification:lsp-sur
:+ %text-document--publish-diagnostics
uri
%+ weld
(~(gut by ford-diagnostics) uri ~)
(get-parser-diagnostics uri)
::
++ build-file
|= [eager=? uri=@t =path desk=(unit desk)]
^- card
=/ =rave:clay
?: eager
[%sing %a da+now.bow path]
[%next %a da+now.bow path]
=/ des=^desk ?^ desk u.desk %base
[%pass /ford/[uri] %arvo %c %warp our.bow des `rave]
::
++ handle-did-open
|= item=text-document-item:lsp-sur
^- (quip card _state)
=/ =path
(uri-to-path:build uri.item)
=/ bek byk.bow
=/ desks=(list desk) ~(tap in .^((set desk) %cd (en-beam bek /)))
=| dek=desk
|-
?~ desks [~ state]
=. dek ?: =(%kids i.desks) %base i.desks
=/ exists=? .^(? %cu (en-beam bek(q dek) path))
?. exists $(desks t.desks)
?: ?=(%sys -.path)
`state
=/ buf=wall
(to-wall (trip text.item))
=. bufs
(~(put by bufs) uri.item buf)
:_ state
%+ weld
(give-rpc-notification (get-diagnostics uri.item))
[(build-file & uri.item path `dek) ~]
::
++ get-parser-diagnostics
|= uri=@t
^- (list diagnostic:lsp-sur)
=/ t=tape
(zing (join "\0a" `wall`(~(got by bufs) uri)))
=/ parse
(lily:auto t (lsp-parser (uri-to-path:build uri)))
?. ?=(%| -.parse)
~
=/ loc=position:lsp-sur
[(dec -.p.parse) +.p.parse]
:_ ~
[[loc loc] 1 'Syntax Error']
::
++ handle-hover
|= hov=text-document--hover:request:lsp-sur
^- (quip card _state)
:_ state
%^ give-rpc-response %text-document--hover id.hov
=/ buf=wall
(~(got by bufs) uri.hov)
=/ txt
(zing (join "\0a" buf))
=/ tab-list
%^ tab-list-tape:auto
(~(gut by preludes) uri.hov -:!>(..zuse))
(get-pos buf row.hov col.hov)
txt
?: ?=(%| -.tab-list) ~
?~ p.tab-list ~
?~ u.p.tab-list ~
:- ~
=- (crip :(weld "```hoon\0a" tape "\0a```"))
^- =tape
%- zing
%+ join "\0a"
%+ scag 40
(~(win re ~(duck easy-print detail.i.u.p.tab-list)) 0 140)
::
++ sync-buf
|= [buf=wall changes=(list change:lsp-sur)]
|- ^- wall
?~ changes
buf
?: ?|(?=(~ range.i.changes) ?=(~ range-length.i.changes))
=/ =wain (to-wain:format text.i.changes)
=. buf (turn wain trip)
$(changes t.changes)
=/ =tape (zing (join "\0a" buf))
=/ start-pos (get-pos buf start.u.range.i.changes)
=/ end-pos (get-pos buf end.u.range.i.changes)
=. tape
;: weld
(scag start-pos tape)
(trip text.i.changes)
(slag end-pos tape)
==
=. buf (to-wall tape)
$(changes t.changes)
::
++ to-wall
|= =tape
^- wall
%+ roll (flop tape)
|= [char=@tD =wall]
?~ wall
[[char ~] ~]
?: =('\0a' char)
[~ wall]
[[char i.wall] t.wall]
::
++ get-pos
|= [buf=wall position]
^- @ud
?~ buf
0
?: =(0 row)
col
%+ add +((lent i.buf)) :: +1 because newline
$(row (dec row), buf t.buf)
::
++ safe-sub
|= [a=@ b=@]
?: (gth b a)
0
(sub a b)
::
--