TypeScript SuggestRegistry.orderedGroups方法代码示例

export function provideSuggestionItems(model: IReadOnlyModel, position: Position, options: ISuggestOptions = {}): TPromise<ISuggestionItem[]> {

	const result: ISuggestionItem[] = [];
	const suggestFilter = createSuggesionFilter(options);
	const suggestCompare = createSuggesionComparator(options);

	// add suggestions from snippet registry
	const snippets = SnippetsRegistry.getSnippets(model, position);
	fillInSuggestResult(result, snippets, undefined, suggestFilter);


	// add suggestions from contributed providers - providers are ordered in groups of
	// equal score and once a group produces a result the process stops
	let hasResult = false;
	const factory = (options.groups || SuggestRegistry.orderedGroups(model)).map(supports => {
		return () => {
			// stop when we have a result
			if (hasResult) {
				return;
			}
			// for each support in the group ask for suggestions
			return TPromise.join(supports.map(support => asWinJsPromise(token => support.provideCompletionItems(model, position, token)).then(values => {
				if (!isFalsyOrEmpty(values)) {
					for (let suggestResult of values) {
						hasResult = fillInSuggestResult(result, suggestResult, support, suggestFilter) || hasResult;
					}
				}
			}, onUnexpectedError)));
		};
	});

	return sequence(factory).then(() => result.sort(suggestCompare));
}

export function provideSuggestionItems(model: IReadOnlyModel, position: Position, snippetConfig: SnippetConfig = 'bottom', onlyFrom?: ISuggestSupport[]): TPromise<ISuggestionItem[]> {

	const result: ISuggestionItem[] = [];
	const acceptSuggestion = createSuggesionFilter(snippetConfig);

	position = position.clone();

	// get provider groups, always add snippet suggestion provider
	const supports = SuggestRegistry.orderedGroups(model);
	supports.unshift([snippetSuggestSupport]);

	// add suggestions from contributed providers - providers are ordered in groups of
	// equal score and once a group produces a result the process stops
	let hasResult = false;
	const factory = supports.map(supports => {
		return () => {
			// stop when we have a result
			if (hasResult) {
				return;
			}
			// for each support in the group ask for suggestions
			return TPromise.join(supports.map(support => {

				if (!isFalsyOrEmpty(onlyFrom) && onlyFrom.indexOf(support) < 0) {
					return;
				}

				return asWinJsPromise(token => support.provideCompletionItems(model, position, token)).then(container => {

					const len = result.length;

					if (container && !isFalsyOrEmpty(container.suggestions)) {
						for (let suggestion of container.suggestions) {
							if (acceptSuggestion(suggestion)) {

								fixOverwriteBeforeAfter(suggestion, container);

								result.push({
									position,
									container,
									suggestion,
									support,
									resolve: createSuggestionResolver(support, suggestion, model, position)
								});
							}
						}
					}

					if (len !== result.length && support !== snippetSuggestSupport) {
						hasResult = true;
					}

				}, onUnexpectedError);
			}));
		};
	});

	return sequence(factory).then(() => result.sort(getSuggestionComparator(snippetConfig)));
}

export function provideCompletionItems(model: IReadOnlyModel, position: IEditorPosition, groups?: ISuggestSupport[][]): TPromise<ISuggestResult2[]> {

	if (!groups) {
		groups = SuggestRegistry.orderedGroups(model);
	}

	const result: ISuggestResult2[] = [];

	const factory = groups.map((supports, index) => {
		return () => {

			// stop as soon as a group produced a result
			if (result.length > 0) {
				return;
			}

			// for each support in the group ask for suggestions
			return TPromise.join(supports.map(support => {
				return asWinJsPromise((token) => {
					return support.provideCompletionItems(model, position, token);
				}).then(values => {

					if (!values) {
						return;
					}

					for (let suggestResult of values) {

						if (!suggestResult || isFalsyOrEmpty(suggestResult.suggestions)) {
							continue;
						}

						result.push({
							support,
							currentWord: suggestResult.currentWord,
							incomplete: suggestResult.incomplete,
							suggestions: suggestResult.suggestions
						});
					}

				}, onUnexpectedError);
			}));
		};
	});

	return sequence(factory).then(() => {
		// add snippets to the first group
		const snippets = SnippetsRegistry.getSnippets(model, position);
		result.push(snippets);
		return result;
	});
}

export function provideSuggestionItems(model: IModel, position: Position, snippetConfig: SnippetConfig = 'bottom', onlyFrom?: ISuggestSupport[], context?: SuggestContext): TPromise<ISuggestionItem[]> {

	const allSuggestions: ISuggestionItem[] = [];
	const acceptSuggestion = createSuggesionFilter(snippetConfig);

	position = position.clone();

	// get provider groups, always add snippet suggestion provider
	const supports = SuggestRegistry.orderedGroups(model);

	// add snippets provider unless turned off
	if (snippetConfig !== 'none' && _snippetSuggestSupport) {
		supports.unshift([_snippetSuggestSupport]);
	}

	const suggestConext = context || { triggerKind: SuggestTriggerKind.Invoke };

	// add suggestions from contributed providers - providers are ordered in groups of
	// equal score and once a group produces a result the process stops
	let hasResult = false;
	const factory = supports.map(supports => {
		return () => {
			// stop when we have a result
			if (hasResult) {
				return undefined;
			}
			// for each support in the group ask for suggestions
			return TPromise.join(supports.map(support => {

				if (!isFalsyOrEmpty(onlyFrom) && onlyFrom.indexOf(support) < 0) {
					return undefined;
				}

				return asWinJsPromise(token => support.provideCompletionItems(model, position, suggestConext, token)).then(container => {

					const len = allSuggestions.length;

					if (container && !isFalsyOrEmpty(container.suggestions)) {
						for (let suggestion of container.suggestions) {
							if (acceptSuggestion(suggestion)) {

								fixOverwriteBeforeAfter(suggestion, container);

								allSuggestions.push({
									position,
									container,
									suggestion,
									support,
									resolve: createSuggestionResolver(support, suggestion, model, position)
								});
							}
						}
					}

					if (len !== allSuggestions.length && support !== _snippetSuggestSupport) {
						hasResult = true;
					}

				}, onUnexpectedExternalError);
			}));
		};
	});

	const result = sequence(factory).then(() => allSuggestions.sort(getSuggestionComparator(snippetConfig)));

	// result.then(items => {
	// 	console.log(model.getWordUntilPosition(position), items.map(item => `${item.suggestion.label}, type=${item.suggestion.type}, incomplete?${item.container.incomplete}, overwriteBefore=${item.suggestion.overwriteBefore}`));
	// 	return items;
	// }, err => {
	// 	console.warn(model.getWordUntilPosition(position), err);
	// });

	return result;
}