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Commit9bbacb4

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Merge pull request#14 from rescript-lang/runDumpCommand
Hook up command from rescript-editor-support.
2 parents63b37a0 +c42f6e2 commit9bbacb4

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5 files changed

+149
-15
lines changed

5 files changed

+149
-15
lines changed
13.8 MB
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20.6 MB
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Lines changed: 90 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,90 @@
1+
import{fileURLToPath}from"url";
2+
import{RequestMessage}from"vscode-languageserver";
3+
import*asutilsfrom"./utils";
4+
import*aspathfrom"path";
5+
import{exec}from"child_process";
6+
import*astmpfrom"tmp";
7+
importfsfrom"fs";
8+
9+
letbinaryPath=path.join(
10+
path.dirname(__dirname),
11+
process.platform,
12+
"rescript-editor-support.exe"
13+
);
14+
15+
exportletbinaryExists=fs.existsSync(binaryPath);
16+
17+
letfindExecutable=(uri:string)=>{
18+
letfilePath=fileURLToPath(uri);
19+
letprojectRootPath=utils.findProjectRootOfFile(filePath);
20+
if(projectRootPath==null||!binaryExists){
21+
returnnull;
22+
}else{
23+
return{ binaryPath, filePath,cwd:projectRootPath};
24+
}
25+
};
26+
27+
exportfunctionrunDumpCommand(
28+
msg:RequestMessage,
29+
onResult:(
30+
result:{hover?:string;definition?:{uri?:string;range:any}}|null
31+
)=>void
32+
){
33+
letexecutable=findExecutable(msg.params.textDocument.uri);
34+
if(executable==null){
35+
onResult(null);
36+
}else{
37+
letcommand=
38+
executable.binaryPath+
39+
" dump "+
40+
executable.filePath+
41+
":"+
42+
msg.params.position.line+
43+
":"+
44+
msg.params.position.character;
45+
exec(command,{cwd:executable.cwd},function(_error,stdout,_stderr){
46+
letresult=JSON.parse(stdout);
47+
if(result&&result[0]){
48+
onResult(result[0]);
49+
}else{
50+
onResult(null);
51+
}
52+
});
53+
}
54+
}
55+
56+
exportfunctionrunCompletionCommand(
57+
msg:RequestMessage,
58+
code:string,
59+
onResult:(result:[{label:string}]|null)=>void
60+
){
61+
letexecutable=findExecutable(msg.params.textDocument.uri);
62+
if(executable==null){
63+
onResult(null);
64+
}else{
65+
lettmpobj=tmp.fileSync();
66+
lettmpname=tmpobj.name;
67+
fs.writeFileSync(tmpname,code,{encoding:"utf-8"});
68+
69+
letcommand=
70+
executable.binaryPath+
71+
" complete "+
72+
executable.filePath+
73+
":"+
74+
msg.params.position.line+
75+
":"+
76+
msg.params.position.character+
77+
" "+
78+
tmpname;
79+
80+
exec(command,{cwd:executable.cwd},function(_error,stdout,_stderr){
81+
tmpobj.removeCallback();
82+
letresult=JSON.parse(stdout);
83+
if(result&&result[0]){
84+
onResult(result);
85+
}else{
86+
onResult(null);
87+
}
88+
});
89+
}
90+
}

‎server/src/server.ts‎

Lines changed: 59 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -20,6 +20,11 @@ import * as chokidar from "chokidar";
2020
import{assert}from"console";
2121
import{fileURLToPath}from"url";
2222
import{ChildProcess}from"child_process";
23+
import{
24+
binaryExists,
25+
runDumpCommand,
26+
runCompletionCommand,
27+
}from"./RescriptEditorSupport";
2328

2429
// https://microsoft.github.io/language-server-protocol/specification#initialize
2530
// According to the spec, there could be requests before the 'initialize' request. Link in comment tells how to handle them.
@@ -270,8 +275,11 @@ process.on("message", (msg: m.Message) => {
270275
// TODO: incremental sync?
271276
textDocumentSync:v.TextDocumentSyncKind.Full,
272277
documentFormattingProvider:true,
273-
hoverProvider:true,
274-
definitionProvider:true,
278+
hoverProvider:binaryExists,
279+
definitionProvider:binaryExists,
280+
completionProvider:binaryExists
281+
?{triggerCharacters:["."]}
282+
:undefined,
275283
},
276284
};
277285
letresponse:m.ResponseMessage={
@@ -315,32 +323,68 @@ process.on("message", (msg: m.Message) => {
315323
process.send!(response);
316324
}
317325
}elseif(msg.method===p.HoverRequest.method){
318-
letdummyHoverResponse:m.ResponseMessage={
326+
letemptyHoverResponse:m.ResponseMessage={
319327
jsonrpc:c.jsonrpcVersion,
320328
id:msg.id,
321329
// type result = Hover | null
322330
// type Hover = {contents: MarkedString | MarkedString[] | MarkupContent, range?: Range}
323-
result:{contents:"Time to go for a 20k run!"},
331+
result:null,
324332
};
325-
326-
process.send!(dummyHoverResponse);
333+
runDumpCommand(msg,(result)=>{
334+
if(result&&result.hover){
335+
lethoverResponse:m.ResponseMessage={
336+
...emptyHoverResponse,
337+
result:{
338+
contents:result.hover,
339+
},
340+
};
341+
process.send!(hoverResponse);
342+
}else{
343+
process.send!(emptyHoverResponse);
344+
}
345+
});
327346
}elseif(msg.method===p.DefinitionRequest.method){
328347
// https://microsoft.github.io/language-server-protocol/specifications/specification-current/#textDocument_definition
329-
letdummyDefinitionResponse:m.ResponseMessage={
348+
letemptyDefinitionResponse:m.ResponseMessage={
330349
jsonrpc:c.jsonrpcVersion,
331350
id:msg.id,
332351
// result should be: Location | Array<Location> | Array<LocationLink> | null
333-
result:{
334-
uri:msg.params.textDocument.uri,
335-
range:{
336-
start:{line:2,character:4},
337-
end:{line:2,character:12},
338-
},
339-
},
352+
result:null,
340353
// error: code and message set in case an exception happens during the definition request.
341354
};
342355

343-
process.send!(dummyDefinitionResponse);
356+
runDumpCommand(msg,(result)=>{
357+
if(result&&result.definition){
358+
letdefinitionResponse:m.ResponseMessage={
359+
...emptyDefinitionResponse,
360+
result:{
361+
uri:result.definition.uri||msg.params.textDocument.uri,
362+
range:result.definition.range,
363+
},
364+
};
365+
process.send!(definitionResponse);
366+
}else{
367+
process.send!(emptyDefinitionResponse);
368+
}
369+
});
370+
}elseif(msg.method===p.CompletionRequest.method){
371+
letemptyCompletionResponse:m.ResponseMessage={
372+
jsonrpc:c.jsonrpcVersion,
373+
id:msg.id,
374+
result:null,
375+
};
376+
letcode=getOpenedFileContent(msg.params.textDocument.uri);
377+
runCompletionCommand(msg,code,(result)=>{
378+
if(result){
379+
letdefinitionResponse:m.ResponseMessage={
380+
...emptyCompletionResponse,
381+
result:result,
382+
};
383+
process.send!(definitionResponse);
384+
}else{
385+
process.send!(emptyCompletionResponse);
386+
}
387+
});
344388
}elseif(msg.method===p.DocumentFormattingRequest.method){
345389
// technically, a formatting failure should reply with the error. Sadly
346390
// the LSP alert box for these error replies sucks (e.g. doesn't actually
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