41 lines
834 B
JavaScript
41 lines
834 B
JavaScript
/**
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* @module ol/util
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*/
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/**
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* @return {?} Any return.
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*/
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export function abstract() {
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return /** @type {?} */ (
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(function () {
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throw new Error('Unimplemented abstract method.');
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})()
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);
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}
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/**
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* Counter for getUid.
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* @type {number}
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* @private
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*/
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let uidCounter_ = 0;
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/**
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* Gets a unique ID for an object. This mutates the object so that further calls
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* with the same object as a parameter returns the same value. Unique IDs are generated
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* as a strictly increasing sequence. Adapted from goog.getUid.
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*
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* @param {Object} obj The object to get the unique ID for.
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* @return {string} The unique ID for the object.
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* @api
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*/
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export function getUid(obj) {
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return obj.ol_uid || (obj.ol_uid = String(++uidCounter_));
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}
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/**
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* OpenLayers version.
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* @type {string}
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*/
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export const VERSION = 'latest';
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