GoTo Definition Support for LPython #3
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ankitaS11
commented
Aug 17, 2022
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| // Borrowed from Jakt: https://github.com/SerenityOS/jakt | ||
| function convertPosition(position: Position, text: string): number { | ||
| let line = 0; | ||
| let character = 0; | ||
| const buffer = new TextEncoder().encode(text); | ||
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| let i = 0; | ||
| while (i < text.length) { | ||
| if (line == position.line && character == position.character) { | ||
| return i; | ||
| } | ||
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| if (buffer.at(i) == 0x0A) { | ||
| line++; | ||
| character = 0; | ||
| } else { | ||
| character++; | ||
| } | ||
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| i++; | ||
| } | ||
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| return i; | ||
| } | ||
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| connection.onDefinition(async (request) => { | ||
| console.time('onDefinition'); | ||
| const document = documents.get(request.textDocument.uri); | ||
| const settings = await getDocumentSettings(request.textDocument.uri); | ||
| const text = document?.getText(); | ||
| const symbols: SymbolInformation[] = []; | ||
| if (typeof text == "string") { | ||
| console.log("request: "); | ||
| console.log(request); | ||
| console.log("index: " + convertPosition(request.position, text)); | ||
| const stdout = await runCompiler(text, "--goto-def " + convertPosition(request.position, text), settings); | ||
| console.log("got: ", stdout); | ||
| const obj = JSON.parse(stdout); | ||
| for (let i = 0; i < obj.length; i++) { | ||
| if (obj[i].location) { | ||
| return [{ | ||
| targetUri: request.textDocument.uri, | ||
| targetRange: { | ||
| start: { line: obj[i].location.range.start.line, character: obj[i].location.range.start.character }, | ||
| end: { line: obj[i].location.range.end.line, character: obj[i].location.range.end.character } | ||
| }, | ||
| targetSelectionRange: { | ||
| start: { line: obj[i].location.range.start.line, character: obj[i].location.range.start.character }, | ||
| end: { line: obj[i].location.range.end.line, character: obj[i].location.range.end.character } | ||
| }, | ||
| originSelectionRange: { | ||
| start: { line: request.position.line, character: Math.max(0, request.position.character - 4) }, | ||
| end: { line: request.position.line, character: request.position.character + 4 } | ||
| } | ||
| }]; | ||
| } | ||
| } | ||
| // console.timeEnd('onDefinition'); | ||
| return undefined; | ||
| } | ||
| }); |
There was a problem hiding this comment.
This is the relevant code for this PR. Once previous PRs are merged, and this is rebased, the PR will look cleaner.
|
Here is the corresponding LPython diff: lcompilers/lpython#982 |
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This PR adds support for Go To Definition for the extension. To test it, please follow the instructions in the previous PRs/README, and right click on any global symbol - "Go to definition" and it will take you to the correct location.