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node_modules/vscode-json-languageservice/lib/esm/services/jsonSelectionRanges.js
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61
node_modules/vscode-json-languageservice/lib/esm/services/jsonSelectionRanges.js
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/*---------------------------------------------------------------------------------------------
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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, SelectionRange } from '../jsonLanguageTypes';
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import { createScanner } from 'jsonc-parser';
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export function getSelectionRanges(document, positions, doc) {
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function getSelectionRange(position) {
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var offset = document.offsetAt(position);
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var node = doc.getNodeFromOffset(offset, true);
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var result = [];
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while (node) {
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switch (node.type) {
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case 'string':
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case 'object':
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case 'array':
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// range without ", [ or {
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var cStart = node.offset + 1, cEnd = node.offset + node.length - 1;
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if (cStart < cEnd && offset >= cStart && offset <= cEnd) {
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result.push(newRange(cStart, cEnd));
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}
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result.push(newRange(node.offset, node.offset + node.length));
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break;
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case 'number':
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case 'boolean':
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case 'null':
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case 'property':
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result.push(newRange(node.offset, node.offset + node.length));
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break;
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}
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if (node.type === 'property' || node.parent && node.parent.type === 'array') {
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var afterCommaOffset = getOffsetAfterNextToken(node.offset + node.length, 5 /* CommaToken */);
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if (afterCommaOffset !== -1) {
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result.push(newRange(node.offset, afterCommaOffset));
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}
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}
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node = node.parent;
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}
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var current = undefined;
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for (var index = result.length - 1; index >= 0; index--) {
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current = SelectionRange.create(result[index], current);
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}
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if (!current) {
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current = SelectionRange.create(Range.create(position, position));
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}
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return current;
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}
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function newRange(start, end) {
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return Range.create(document.positionAt(start), document.positionAt(end));
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}
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var scanner = createScanner(document.getText(), true);
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function getOffsetAfterNextToken(offset, expectedToken) {
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scanner.setPosition(offset);
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var token = scanner.scan();
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if (token === expectedToken) {
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return scanner.getTokenOffset() + scanner.getTokenLength();
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}
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return -1;
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}
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return positions.map(getSelectionRange);
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}
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