|
| 1 | +/*--------------------------------------------------------------------------------------------- |
| 2 | + * Copyright (c) Microsoft Corporation. All rights reserved. |
| 3 | + * Licensed under the MIT License. See License.txt in the project root for license information. |
| 4 | + *--------------------------------------------------------------------------------------------*/ |
| 5 | + |
| 6 | +import { CompletionItemProvider, TextDocument, Position, CompletionContext, CompletionList, CompletionItem, MarkdownString, TextEdit, Range, SnippetString } from "vscode"; |
| 7 | +import AbstractProvider from "./abstractProvider"; |
| 8 | +import * as protocol from "../omnisharp/protocol"; |
| 9 | +import * as serverUtils from '../omnisharp/utils'; |
| 10 | +import { CancellationToken, CompletionTriggerKind as LspCompletionTriggerKind, InsertTextFormat } from "vscode-languageserver-protocol"; |
| 11 | +import { createRequest } from "../omnisharp/typeConversion"; |
| 12 | + |
| 13 | +export default class OmnisharpCompletionProvider extends AbstractProvider implements CompletionItemProvider { |
| 14 | + |
| 15 | + #lastCompletions?: Map<CompletionItem, protocol.OmnisharpCompletionItem>; |
| 16 | + |
| 17 | + public async provideCompletionItems(document: TextDocument, position: Position, token: CancellationToken, context: CompletionContext): Promise<CompletionList> { |
| 18 | + let request = createRequest<protocol.CompletionRequest>(document, position); |
| 19 | + request.CompletionTrigger = (context.triggerKind + 1) as LspCompletionTriggerKind; |
| 20 | + request.TriggerCharacter = context.triggerCharacter; |
| 21 | + |
| 22 | + try { |
| 23 | + const response = await serverUtils.getCompletion(this._server, request, token); |
| 24 | + const mappedItems = response.Items.map(this._convertToVscodeCompletionItem); |
| 25 | + |
| 26 | + let lastCompletions = new Map(); |
| 27 | + |
| 28 | + for (let i = 0; i < mappedItems.length; i++) { |
| 29 | + lastCompletions.set(mappedItems[i], response.Items[i]); |
| 30 | + } |
| 31 | + |
| 32 | + this.#lastCompletions = lastCompletions; |
| 33 | + |
| 34 | + return { items: mappedItems }; |
| 35 | + } |
| 36 | + catch (error) { |
| 37 | + return; |
| 38 | + } |
| 39 | + } |
| 40 | + |
| 41 | + public async resolveCompletionItem(item: CompletionItem, token: CancellationToken): Promise<CompletionItem> { |
| 42 | + const lastCompletions = this.#lastCompletions; |
| 43 | + if (!lastCompletions) { |
| 44 | + return item; |
| 45 | + } |
| 46 | + |
| 47 | + const lspItem = lastCompletions.get(item); |
| 48 | + if (!lspItem) { |
| 49 | + return item; |
| 50 | + } |
| 51 | + |
| 52 | + const request: protocol.CompletionResolveRequest = { Item: lspItem }; |
| 53 | + try { |
| 54 | + const response = await serverUtils.getCompletionResolve(this._server, request, token); |
| 55 | + return this._convertToVscodeCompletionItem(response.Item); |
| 56 | + } |
| 57 | + catch (error) { |
| 58 | + return; |
| 59 | + } |
| 60 | + } |
| 61 | + |
| 62 | + private _convertToVscodeCompletionItem(omnisharpCompletion: protocol.OmnisharpCompletionItem): CompletionItem { |
| 63 | + let docs: MarkdownString | undefined = omnisharpCompletion.Documentation ? new MarkdownString(omnisharpCompletion.Documentation, false) : undefined; |
| 64 | + |
| 65 | + const mapTextEdit = function (edit: protocol.LinePositionSpanTextChange): TextEdit { |
| 66 | + const newStart = new Position(edit.StartLine - 1, edit.StartColumn - 1); |
| 67 | + const newEnd = new Position(edit.EndLine - 1, edit.EndColumn - 1); |
| 68 | + const newRange = new Range(newStart, newEnd); |
| 69 | + return new TextEdit(newRange, edit.NewText); |
| 70 | + }; |
| 71 | + |
| 72 | + const additionalTextEdits = omnisharpCompletion.AdditionalTextEdits?.map(mapTextEdit); |
| 73 | + |
| 74 | + const insertText = omnisharpCompletion.InsertTextFormat === InsertTextFormat.Snippet |
| 75 | + ? new SnippetString(omnisharpCompletion.InsertText) |
| 76 | + : omnisharpCompletion.InsertText; |
| 77 | + |
| 78 | + return { |
| 79 | + label: omnisharpCompletion.Label, |
| 80 | + kind: omnisharpCompletion.Kind - 1, |
| 81 | + detail: omnisharpCompletion.Detail, |
| 82 | + documentation: docs, |
| 83 | + commitCharacters: omnisharpCompletion.CommitCharacters, |
| 84 | + preselect: omnisharpCompletion.Preselect, |
| 85 | + filterText: omnisharpCompletion.FilterText, |
| 86 | + insertText: insertText, |
| 87 | + tags: omnisharpCompletion.Tags, |
| 88 | + sortText: omnisharpCompletion.SortText, |
| 89 | + additionalTextEdits: additionalTextEdits, |
| 90 | + keepWhitespace: true |
| 91 | + }; |
| 92 | + } |
| 93 | +} |
0 commit comments