74 lines
2.5 KiB
JavaScript
74 lines
2.5 KiB
JavaScript
/*---------------------------------------------------------------------------------------------
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* Copyright (c) Microsoft Corporation. All rights reserved.
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* Licensed under the MIT License. See License.txt in the project root for license information.
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*--------------------------------------------------------------------------------------------*/
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import { Range } from '../jsonLanguageTypes';
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export function findLinks(document, doc) {
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var links = [];
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doc.visit(function (node) {
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var _a;
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if (node.type === "property" && node.keyNode.value === "$ref" && ((_a = node.valueNode) === null || _a === void 0 ? void 0 : _a.type) === 'string') {
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var path = node.valueNode.value;
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var targetNode = findTargetNode(doc, path);
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if (targetNode) {
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var targetPos = document.positionAt(targetNode.offset);
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links.push({
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target: document.uri + "#" + (targetPos.line + 1) + "," + (targetPos.character + 1),
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range: createRange(document, node.valueNode)
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});
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}
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}
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return true;
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});
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return Promise.resolve(links);
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}
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function createRange(document, node) {
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return Range.create(document.positionAt(node.offset + 1), document.positionAt(node.offset + node.length - 1));
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}
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function findTargetNode(doc, path) {
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var tokens = parseJSONPointer(path);
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if (!tokens) {
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return null;
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}
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return findNode(tokens, doc.root);
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}
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function findNode(pointer, node) {
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if (!node) {
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return null;
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}
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if (pointer.length === 0) {
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return node;
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}
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var token = pointer.shift();
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if (node && node.type === 'object') {
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var propertyNode = node.properties.find(function (propertyNode) { return propertyNode.keyNode.value === token; });
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if (!propertyNode) {
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return null;
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}
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return findNode(pointer, propertyNode.valueNode);
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}
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else if (node && node.type === 'array') {
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if (token.match(/^(0|[1-9][0-9]*)$/)) {
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var index = Number.parseInt(token);
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var arrayItem = node.items[index];
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if (!arrayItem) {
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return null;
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}
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return findNode(pointer, arrayItem);
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}
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}
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return null;
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}
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function parseJSONPointer(path) {
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if (path === "#") {
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return [];
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}
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if (path[0] !== '#' || path[1] !== '/') {
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return null;
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}
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return path.substring(2).split(/\//).map(unescape);
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}
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function unescape(str) {
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return str.replace(/~1/g, '/').replace(/~0/g, '~');
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}
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