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perf_hooks: make nodeTiming a first-class object #35977

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perf_hooks: make nodeTiming a first-class object #35977

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perf_hooks: make nodeTiming a first-class object
mmomtchev Nov 5, 2020
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perf-hooks: Make nodeTiming a first-class object
mmomtchev Nov 5, 2020
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perf_hooks: make nodeTiming a first-class object
mmomtchev Nov 6, 2020
166f6b3
perf_hooks: make nodeTiming a first-class object
mmomtchev Nov 6, 2020
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perf_hooks: make nodeTiming a first-class object
mmomtchev Nov 6, 2020
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perf_hooks: make nodeTiming a first-class object 
Render all properties of nodeTiming enumerable
so JSON.stringify and Object.keys can access them

Refs: #35977
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@mmomtchev
mmomtchev committed Nov 6, 2020
commit 778f60b7626f0a715ae4071cdb944165251028e9
37 changes: 22 additions & 15 deletions lib/perf_hooks.js
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Expand Up @@ -165,82 +165,89 @@ function getMilestoneTimestamp(milestoneIdx) {
return ns / 1e6 - timeOrigin;
}

const PerformanceNodeTimingProps = {
enumerable: true,
configurable: true
};
class PerformanceNodeTiming extends PerformanceEntry {
constructor() {
super();

ObjectDefineProperties(this, {
name: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
value: 'node'
},
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entryType: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
value: 'node'
},

startTime: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
value: 0
},

duration: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return now() - timeOrigin;
}
},

nodeStart: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return getMilestoneTimestamp(NODE_PERFORMANCE_MILESTONE_NODE_START);
}
},

v8Start: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return getMilestoneTimestamp(NODE_PERFORMANCE_MILESTONE_V8_START);
}
},

environment: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return getMilestoneTimestamp(NODE_PERFORMANCE_MILESTONE_ENVIRONMENT);
}
},

loopStart: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return getMilestoneTimestamp(NODE_PERFORMANCE_MILESTONE_LOOP_START);
}
},

loopExit: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return getMilestoneTimestamp(NODE_PERFORMANCE_MILESTONE_LOOP_EXIT);
}
},

bootstrapComplete: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return getMilestoneTimestamp(
NODE_PERFORMANCE_MILESTONE_BOOTSTRAP_COMPLETE);
}
},

idleTime: {
...PerformanceNodeTimingProps,
enumerable: true,
configurable: true,
get() {
return loopIdleTime();
}
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