// GENERATED CONTENT - DO NOT EDIT
// Content was automatically extracted by Reffy into webref
// (https://github.com/w3c/webref)
// Source: User Timing Level 3 (https://w3c.github.io/user-timing/)

dictionary PerformanceMarkOptions {
    any detail;
    DOMHighResTimeStamp startTime;
};

dictionary PerformanceMeasureOptions {
    any detail;
    (DOMString or DOMHighResTimeStamp) start;
    DOMHighResTimeStamp duration;
    (DOMString or DOMHighResTimeStamp) end;
};

partial interface Performance {
    PerformanceMark mark(DOMString markName, optional PerformanceMarkOptions markOptions = {});
    undefined clearMarks(optional DOMString markName);
    PerformanceMeasure measure(DOMString measureName, optional (DOMString or PerformanceMeasureOptions) startOrMeasureOptions = {}, optional DOMString endMark);
    undefined clearMeasures(optional DOMString measureName);
};

[Exposed=(Window,Worker)]
interface PerformanceMark : PerformanceEntry {
  constructor(DOMString markName, optional PerformanceMarkOptions markOptions = {});
  readonly attribute any detail;
};

[Exposed=(Window,Worker)]
interface PerformanceMeasure : PerformanceEntry {
  readonly attribute any detail;
};