1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
open Forester_prelude
open Forester_core
open Forester_compiler
open Forester_frontend
open Forester_search
open State.Syntax
open struct
module L = Lsp.Types
module T = Types
let (let*) = Option.bind
end
let compute ({position; textDocument; _}: L.HoverParams.t) =
let Lsp_state.{forest; _} = Lsp_state.get () in
let render = Plain_text_client.string_of_content ~forest in
let uri = URI_scheme.lsp_uri_to_uri ~base: forest.config.url textDocument.uri in
let@ content =
Option.map @~
match forest.={uri} with
| None ->
Reporter.fatal Internal_error ~extra_remarks: [Asai.Diagnostic.loctextf "%a is not in the index" URI.pp uri]
| Some tree ->
let* {nodes; _} = Tree.to_code tree in
let* node = Analysis.node_at_code ~position nodes in
let tree_under_cursor =
let* {value = addr; _} = Analysis.extract_addr node in
let uri_under_cursor = URI_scheme.named_uri ~base: forest.config.url addr in
State.get_article uri_under_cursor forest
in
match tree_under_cursor with
| Some article -> Some (render article.mainmatter)
| None ->
let* doc = Tree.to_doc tree in
let* search_term = Analysis.word_at ~position doc in
let results = List.map snd @@ Index.search forest.search_index search_term in
Some Format.(asprintf "Relevant results:@.%a@." (pp_print_list ~pp_sep: (fun out () -> fprintf out "@.") URI.pp) results)
in
L.Hover.create ~contents: (`MarkupContent {kind = L.MarkupKind.Markdown; value = content}) ()