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const {
ObjectDefineProperty,
ObjectDefineProperties,
ObjectSetPrototypeOf,
} = primordials;
const {
codes: {
ERR_ILLEGAL_CONSTRUCTOR,
ERR_MISSING_ARGS
}
} = require('internal/errors');
const {
EventTarget,
} = require('internal/event_target');
const { now } = require('internal/perf/utils');
const { markResourceTiming } = require('internal/perf/resource_timing');
const {
mark,
measure,
clearMarkTimings,
} = require('internal/perf/usertiming');
const {
clearEntriesFromBuffer,
filterBufferMapByNameAndType,
} = require('internal/perf/observe');
const { eventLoopUtilization } = require('internal/perf/event_loop_utilization');
const nodeTiming = require('internal/perf/nodetiming');
const timerify = require('internal/perf/timerify');
const { customInspectSymbol: kInspect } = require('internal/util');
const { inspect } = require('util');
const {
getTimeOriginTimestamp
} = internalBinding('performance');
class Performance extends EventTarget {
constructor() {
throw new ERR_ILLEGAL_CONSTRUCTOR();
}
[kInspect](depth, options) {
if (depth < 0) return this;
const opts = {
...options,
depth: options.depth == null ? null : options.depth - 1
};
return `Performance ${inspect({
nodeTiming: this.nodeTiming,
timeOrigin: this.timeOrigin,
}, opts)}`;
}
}
function toJSON() {
return {
nodeTiming: this.nodeTiming,
timeOrigin: this.timeOrigin,
eventLoopUtilization: this.eventLoopUtilization()
};
}
function clearMarks(name) {
if (name !== undefined) {
name = `${name}`;
}
clearMarkTimings(name);
clearEntriesFromBuffer('mark', name);
}
function clearMeasures(name) {
if (name !== undefined) {
name = `${name}`;
}
clearEntriesFromBuffer('measure', name);
}
function clearResourceTimings(name) {
if (name !== undefined) {
name = `${name}`;
}
clearEntriesFromBuffer('resource', name);
}
function getEntries() {
return filterBufferMapByNameAndType();
}
function getEntriesByName(name) {
if (arguments.length === 0) {
throw new ERR_MISSING_ARGS('name');
}
name = `${name}`;
return filterBufferMapByNameAndType(name, undefined);
}
function getEntriesByType(type) {
if (arguments.length === 0) {
throw new ERR_MISSING_ARGS('type');
}
type = `${type}`;
return filterBufferMapByNameAndType(undefined, type);
}
class InternalPerformance extends EventTarget {}
InternalPerformance.prototype.constructor = Performance.prototype.constructor;
ObjectSetPrototypeOf(InternalPerformance.prototype, Performance.prototype);
ObjectDefineProperties(Performance.prototype, {
clearMarks: {
__proto__: null,
configurable: true,
enumerable: false,
value: clearMarks,
},
clearMeasures: {
__proto__: null,
configurable: true,
enumerable: false,
value: clearMeasures,
},
clearResourceTimings: {
__proto__: null,
configurable: true,
enumerable: false,
value: clearResourceTimings,
},
eventLoopUtilization: {
__proto__: null,
configurable: true,
enumerable: false,
value: eventLoopUtilization,
},
getEntries: {
__proto__: null,
configurable: true,
enumerable: false,
value: getEntries,
},
getEntriesByName: {
__proto__: null,
configurable: true,
enumerable: false,
value: getEntriesByName,
},
getEntriesByType: {
__proto__: null,
configurable: true,
enumerable: false,
value: getEntriesByType,
},
mark: {
__proto__: null,
configurable: true,
enumerable: false,
value: mark,
},
measure: {
__proto__: null,
configurable: true,
enumerable: false,
value: measure,
},
nodeTiming: {
__proto__: null,
configurable: true,
enumerable: false,
value: nodeTiming,
},
// In the browser, this function is not public. However, it must be used inside fetch
// which is a Node.js dependency, not a internal module
markResourceTiming: {
__proto__: null,
configurable: true,
enumerable: false,
value: markResourceTiming,
},
now: {
__proto__: null,
configurable: true,
enumerable: false,
value: now,
},
timerify: {
__proto__: null,
configurable: true,
enumerable: false,
value: timerify,
},
// This would be updated during pre-execution in case
// the process is launched from a snapshot.
// TODO(joyeecheung): we may want to warn about access to
// this during snapshot building.
timeOrigin: {
__proto__: null,
configurable: true,
enumerable: true,
value: getTimeOriginTimestamp(),
},
toJSON: {
__proto__: null,
configurable: true,
enumerable: true,
value: toJSON,
}
});
function refreshTimeOrigin() {
ObjectDefineProperty(Performance.prototype, 'timeOrigin', {
__proto__: null,
configurable: true,
enumerable: true,
value: getTimeOriginTimestamp(),
});
}
module.exports = {
InternalPerformance,
refreshTimeOrigin
};
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