解决 Monaco Editor 添加自定义提示后导致内置单词消失问题

像这样添加自定义提示后，内置单词提示消失了

this.monaco.languages.registerCompletionItemProvider('javascript', { provideCompletionItems: function(model, position) { // var textUntilPosition = model.getValueInRange({startLineNumber: position.lineNumber, startColumn: 1, endLineNumber: position.lineNumber, endColumn: position.column}); // var match = textUntilPosition.indexOf('.') == -1//textUntilPosition.match(/cu/gim); // var suggestions = match ? _this._comp_cfg : []; var suggestions = _this._comp_cfg ; return { suggestions: suggestions }; return ; }, // 光标选中当前自动补全item时触发动作，一般情况下无需处理 resolveCompletionItem(item, token) { return null; } });

解决方法，修改以下文件： editor.main.js 下的这个函数将 将：

if (lenBefore !== result.length || token.isCancellationRequested) { break; }

改为：

if (lenBefore !== result.length || token.isCancellationRequested) { // break; }

修改的函数代码

function provideSuggestionItems(model, position, options = CompletionOptions.default, context = { triggerKind: 0 /* Invoke */ }, token = cancellation_1.CancellationToken.None) { return __awaiter(this, void 0, void 0, function* () { // const t1 = Date.now(); position = position.clone(); const word = model.getWordAtPosition(position); const defaultReplaceRange = word ? new range_1.Range(position.lineNumber, word.startColumn, position.lineNumber, word.endColumn) : range_1.Range.fromPositions(position); const defaultRange = { replace: defaultReplaceRange, insert: defaultReplaceRange.setEndPosition(position.lineNumber, position.column) }; const result = []; const disposables = new lifecycle_1.DisposableStore(); let needsClipboard = false; const onCompletionList = (provider, container) => { if (!container) { return; } for (let suggestion of container.suggestions) { if (!options.kindFilter.has(suggestion.kind)) { // fill in default range when missing if (!suggestion.range) { suggestion.range = defaultRange; } // fill in default sortText when missing if (!suggestion.sortText) { suggestion.sortText = typeof suggestion.label === 'string' ? suggestion.label : suggestion.label.name; } if (!needsClipboard && suggestion.insertTextRules && suggestion.insertTextRules & 4 /* InsertAsSnippet */) { needsClipboard = snippetParser_1.SnippetParser.guessNeedsClipboard(suggestion.insertText); } result.push(new CompletionItem(position, suggestion, container, provider)); } } if (lifecycle_1.isDisposable(container)) { disposables.add(container); } }; // ask for snippets in parallel to asking "real" providers. Only do something if configured to // do so - no snippet filter, no special-providers-only request const snippetCompletions = (() => __awaiter(this, void 0, void 0, function* () { if (!_snippetSuggestSupport || options.kindFilter.has(27 /* Snippet */)) { return; } if (options.providerFilter.size > 0 && !options.providerFilter.has(_snippetSuggestSupport)) { return; } const list = yield _snippetSuggestSupport.provideCompletionItems(model, position, context, token); onCompletionList(_snippetSuggestSupport, list); }))(); // add suggestions from contributed providers - providers are ordered in groups of // equal score and once a group produces a result the process stops // get provider groups, always add snippet suggestion provider for (let providerGroup of modes.CompletionProviderRegistry.orderedGroups(model)) { // for each support in the group ask for suggestions let lenBefore = result.length; yield Promise.all(providerGroup.map((provider) => __awaiter(this, void 0, void 0, function* () { if (options.providerFilter.size > 0 && !options.providerFilter.has(provider)) { return; } try { const list = yield provider.provideCompletionItems(model, position, context, token); onCompletionList(provider, list); } catch (err) { errors_1.onUnexpectedExternalError(err); } }))); if (lenBefore !== result.length || token.isCancellationRequested) { // break; } } yield snippetCompletions; if (token.isCancellationRequested) { disposables.dispose(); return Promise.reject(errors_1.canceled()); } // console.log(`${result.length} items AFTER ${Date.now() - t1}ms`); return new CompletionItemModel(result.sort(getSuggestionComparator(options.snippetSortOrder)), needsClipboard, disposables); }); }

以上代码都是摸索阶段写的，其实只要修改一个地方：

this.monaco.languages.registerCompletionItemProvider('javascript', { provideCompletionItems: function(model, position) { // var textUntilPosition = model.getValueInRange({startLineNumber: position.lineNumber, startColumn: 1, endLineNumber: position.lineNumber, endColumn: position.column}); // var match = textUntilPosition.indexOf('.') == -1//textUntilPosition.match(/cu/gim); // var suggestions = match ? _this._comp_cfg : []; var suggestions = _this._comp_cfg ; // 必须清除range，不然 .号后面东西都提示不了 for (let i = 0; i < suggestions.length; i++) { const v = suggestions[i]; delete v.range; } return { suggestions: suggestions }; return ; }, // 光标选中当前自动补全item时触发动作，一般情况下无需处理 resolveCompletionItem(item, token) { return null; } });