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Paul Lewis
911c1b8a93
DISABLE_THIRD_PARTY_CHECK=Package needs updating with node_modules Change-Id: I889f1b86c586e37307a3e13ad762aa56d1ece150 Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1946468 Commit-Queue: Paul Lewis <aerotwist@chromium.org> Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
651 B
651 B
dezalgo
Contain async insanity so that the dark pony lord doesn't eat souls
See this blog post.
USAGE
Pass a callback to dezalgo and it will ensure that it is always
called in a future tick, and never in this tick.
var dz = require('dezalgo')
var cache = {}
function maybeSync(arg, cb) {
cb = dz(cb)
// this will actually defer to nextTick
if (cache[arg]) cb(null, cache[arg])
fs.readFile(arg, function (er, data) {
// since this is *already* defered, it will call immediately
if (er) cb(er)
cb(null, cache[arg] = data)
})
}