@zendesk/react-measure-timing-hooks/cjs/v3/defaultDeduplicationStrategy.js

react hooks for measuring time to interactive and time to render of components

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.createDefaultPerformanceEntryDeduplicationStrategy = createDefaultPerformanceEntryDeduplicationStrategy;
const getPerformanceEntryHash_1 = require("./getPerformanceEntryHash");
function createDefaultPerformanceEntryDeduplicationStrategy() {
    let processedPerformanceEntries = new WeakMap();
    const processedPerformanceEntriesByHash = new Map();
    return {
        findDuplicate(span) {
            if (!span.performanceEntry) {
                return undefined;
            }
            const existing = processedPerformanceEntries.get(span.performanceEntry);
            if (existing) {
                return existing;
            }
            if (span.performanceEntry.entryType === 'resource') {
                const hash = (0, getPerformanceEntryHash_1.getPerformanceEntryHash)(span.performanceEntry);
                return processedPerformanceEntriesByHash.get(hash);
            }
            return undefined;
        },
        recordSpan(span, spanAndAnnotation) {
            if (!span.performanceEntry) {
                return;
            }
            processedPerformanceEntries.set(span.performanceEntry, spanAndAnnotation);
            if (span.performanceEntry.entryType === 'resource') {
                const hash = (0, getPerformanceEntryHash_1.getPerformanceEntryHash)(span.performanceEntry);
                processedPerformanceEntriesByHash.set(hash, spanAndAnnotation);
            }
        },
        reset() {
            processedPerformanceEntries = new WeakMap();
            processedPerformanceEntriesByHash.clear();
        },
        selectPreferredSpan(existingSpan, newSpan) {
            // Default behavior: use the new span
            return newSpan;
        },
    };
}
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