add support for TracingChannel#hasSubscribers, test Node.js v22#11
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tlhunter
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TracingChannel#hasSubscribersTracingChannel#hasSubscribers, test Node.js v22
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bengl
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May 8, 2024
| dc.tracingChannel = function() { | ||
| const tc = tracingChannel(...arguments); | ||
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| Object.defineProperty(tc, 'hasSubscribers', { // TODO: on prototype? |
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Could you do it on the prototype by creating a throwaway TracingChannel and getting its prototype?
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That's just crazy enough to work
bengl
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May 8, 2024
| // if there is a TracingChannel#hasSubscribers() method | ||
| // @see https://github.com/nodejs/node/pull/51915 | ||
| // TODO: note that we still need to add the TC early exit from this same version | ||
| function hasTracingChannelHasSubscribersMethod() { |
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hasSubscribers is an accessor/property, not a method.
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bengl
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| { | ||
| const fauxTrCh = dc.tracingChannel('dc-polyfill-faux'); | ||
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| const TracingChannel = ObjectGetPrototypeOf(fauxTrCh); |
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Maybe TracingChannelPrototype or tracingChannelPrototype, or proto or something else to indicate that it's the prototype object, and not the class/constructor.
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diagnostics_channelchanges landed in Node.js in diagnostics_channel: early-exit tracing channel trace methods nodejs/node#51915TracingChannel#hasSubscribershelper method available in Node.js v22 and v20.13