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@mrjoelkemp
Last active December 22, 2017 09:48
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Go-style defer without dependency injection
var deferrable = function (cb) {
function getFunctionBody(code) {
var functionDef = code.match(/\{(.|[\r\n])+\}/);
// Strip body of all useless chars
return functionDef[0].replace(/\{|\}/g, '')
}
var
// Grab the entire defer() block
deferCode = cb.toString().match(/defer\((.|[\r\n])+\}+\)/),
// Grab the deferred function's body
functionBody = getFunctionBody(deferCode[0]),
toDefer = new Function(functionBody);
// Strip out the defer call
cb = new Function(getFunctionBody(cb.toString().replace(deferCode[0], '')));
cb();
toDefer();
}
deferrable(function () {
defer(function () {
console.log('bar');
})
console.log(2);
});
@julien-f
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julien-f commented Dec 22, 2017

Hey, FYI, I've created a lib for this, feel free to criticize and report issues 😃
https://github.com/JsCommunity/golike-defer

Well it's not exactly the same because I do use dependency injection.

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