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zthzth
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handle polyvariants
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5 files changed

+135
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‎analysis/src/CompletionBackEnd.ml‎

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Original file line numberDiff line numberDiff line change
@@ -1784,6 +1784,18 @@ let rec resolveNestedPattern typ ~env ~package ~nested =
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match List.nth_opt constructor.args payloadNum with
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| None -> None
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| Some (typ, _) -> typ |> resolveNestedPattern ~env ~package ~nested))
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| ( PPolyvariantPayload {constructorName; payloadNum},
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Some (Tpolyvariant {env; constructors}) ) -> (
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match
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constructors
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|> List.find_opt (fun (c : polyVariantConstructor) ->
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c.name = constructorName)
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with
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| None -> None
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| Some constructor -> (
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match List.nth_opt constructor.args payloadNum with
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| None -> None
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| Some typ -> typ |> resolveNestedPattern ~env ~package ~nested))
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| _ -> None)
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let processCompletable ~debug ~full ~scope ~env ~pos ~forHover

‎analysis/src/CompletionFrontEnd.ml‎

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Original file line numberDiff line numberDiff line change
@@ -509,6 +509,7 @@ let completionWithParser1 ~currentFile ~debug ~offset ~path ~posCursor ~text =
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| Ppat_var {txt} -> commitFoundPat ~prefix:txt ()
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| Ppat_construct ({txt = Lident prefix}, None) ->
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commitFoundPat ~prefix ()
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| Ppat_variant (prefix, None) -> commitFoundPat ~prefix:("#" ^ prefix) ()
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| Ppat_tuple patterns -> (
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match patterns |> findPatTupleItemWithCursor ~pos:posBeforeCursor with
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| Some itemNum -> appendNestedPat (Completable.PTupleItem {itemNum})
@@ -604,6 +605,45 @@ let completionWithParser1 ~currentFile ~debug ~offset ~path ~posCursor ~text =
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appendNestedPat
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(Completable.PVariantPayload
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{constructorName = getUnqualifiedName txt; payloadNum}))
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| Ppat_variant
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( txt,
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Some {ppat_loc; ppat_desc = Ppat_construct ({txt = Lident "()"}, _)}
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)
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when ppat_loc
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|> CursorPosition.classifyLoc ~pos:posBeforeCursor
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= HasCursor ->
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(* Empty payload *)
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appendNestedPat
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(Completable.PPolyvariantPayload
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{constructorName = txt; payloadNum = 0});
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commitFoundPat ~prefix:"" ()
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| Ppat_variant
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( txt,
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Some
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{
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ppat_loc;
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ppat_desc =
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Ppat_var _ | Ppat_record _ | Ppat_construct _ | Ppat_variant _;
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} )
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when ppat_loc
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|> CursorPosition.classifyLoc ~pos:posBeforeCursor
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= HasCursor ->
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(* Single payload *)
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appendNestedPat
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(Completable.PPolyvariantPayload
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{constructorName = txt; payloadNum = 0})
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| Ppat_variant (txt, Some {ppat_loc; ppat_desc = Ppat_tuple tupleItems})
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when ppat_loc
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|> CursorPosition.classifyLoc ~pos:posBeforeCursor
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= HasCursor -> (
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(* Multiple payloads with cursor in item *)
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(* TODO: New item with comma *)
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match tupleItems |> findPatTupleItemWithCursor ~pos:posBeforeCursor with
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| None -> ()
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| Some payloadNum ->
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appendNestedPat
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(Completable.PPolyvariantPayload {constructorName = txt; payloadNum})
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)
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| _ -> ()
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in
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let case (iterator : Ast_iterator.iterator) (case : Parsetree.case) =

‎analysis/src/SharedTypes.ml‎

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Original file line numberDiff line numberDiff line change
@@ -558,6 +558,7 @@ module Completable = struct
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| PFollowRecordField of {fieldName: string}
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| PRecordBody of {seenFields: string list}
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| PVariantPayload of {constructorName: string; payloadNum: int}
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| PPolyvariantPayload of {constructorName: string; payloadNum: int}
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let patternPathToString p =
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match p with
@@ -567,6 +568,9 @@ module Completable = struct
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| PVariantPayload {constructorName; payloadNum} ->
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"variantPayload::" ^ constructorName ^ "($" ^ string_of_int payloadNum
569570
^ ")"
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| PPolyvariantPayload {constructorName; payloadNum} ->
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"polyvariantPayload::" ^ constructorName ^ "($" ^ string_of_int payloadNum
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^ ")"
570574

571575
type t =
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| Cdecorator of string (** e.g. @module *)

‎analysis/tests/src/CompletionPattern.res‎

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Original file line numberDiff line numberDiff line change
@@ -92,3 +92,16 @@ ignore(z)
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9393
// switch z { | Three({})}
9494
// ^com
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type somePolyVariant = [#one | #two(bool) | #three(someRecord, bool)]
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let b: somePolyVariant = #two(true)
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ignore(b)
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// switch b { | #two()}
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// ^com
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// switch b { | #two(t)}
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// ^com
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// switch b { | #three({})}
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// ^com

‎analysis/tests/src/expected/CompletionPattern.res.txt‎

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Original file line numberDiff line numberDiff line change
@@ -324,3 +324,69 @@ Completable: Cpattern Value[z]->variantPayload::Three($0), recordBody
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"documentation": null
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}]
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Complete src/CompletionPattern.res 99:21
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looking for: Cpath Value[b]
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posCursor:[99:21] posNoWhite:[99:20] Found expr:[99:3->99:23]
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posCursor:[99:21] posNoWhite:[99:20] Found pattern:[99:16->99:22]
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posCursor:[99:21] posNoWhite:[99:20] Found pattern:[99:20->99:21]
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Completable: Cpattern Value[b]->polyvariantPayload::two($0)
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[{
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"label": "true",
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"kind": 4,
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"tags": [],
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"detail": "bool",
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"documentation": null
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}, {
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"label": "false",
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"kind": 4,
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"tags": [],
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"detail": "bool",
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"documentation": null
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}]
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Complete src/CompletionPattern.res 102:22
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looking for: Cpath Value[b]
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posCursor:[102:22] posNoWhite:[102:21] Found expr:[102:3->102:24]
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posCursor:[102:22] posNoWhite:[102:21] Found pattern:[102:16->102:23]
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posCursor:[102:22] posNoWhite:[102:21] Found pattern:[102:21->102:22]
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Completable: Cpattern Value[b]=t->polyvariantPayload::two($0)
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[{
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"label": "true",
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"kind": 4,
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"tags": [],
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"detail": "bool",
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"documentation": null
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}]
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Complete src/CompletionPattern.res 105:24
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looking for: Cpath Value[b]
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posCursor:[105:24] posNoWhite:[105:23] Found expr:[105:3->105:27]
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posCursor:[105:24] posNoWhite:[105:23] Found pattern:[105:16->105:26]
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posCursor:[105:24] posNoWhite:[105:23] Found pattern:[105:23->105:25]
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Completable: Cpattern Value[b]->polyvariantPayload::three($0), recordBody
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[{
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"label": "first",
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"kind": 5,
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"tags": [],
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"detail": "first: int\n\nsomeRecord",
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"documentation": null
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}, {
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"label": "second",
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"kind": 5,
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"tags": [],
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"detail": "second: (bool, option<someRecord>)\n\nsomeRecord",
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"documentation": null
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}, {
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"label": "optThird",
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"kind": 5,
382+
"tags": [],
383+
"detail": "optThird: option<[#second(someRecord) | #first]>\n\nsomeRecord",
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"documentation": null
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}, {
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"label": "nest",
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"kind": 5,
388+
"tags": [],
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"detail": "nest: nestedRecord\n\nsomeRecord",
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"documentation": null
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}]
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