function noop(){} function chain(delegateFn, explicitDone){ var onDoneFn = noop; var onErrorFn = function(e){ console.error(e.stack || e); process.exit(-1); }; var waitForCount = 1; delegateFn = delegateFn || noop; var stackError = new Error('capture stack'); function decrementWaitFor() { waitForCount--; if (waitForCount == 0) onDoneFn(); } function self(){ try { return delegateFn.apply(self, arguments); } catch (error) { self.error(error); } finally { if (!explicitDone) decrementWaitFor(); } }; self.onDone = function(callback){ onDoneFn = callback; return self; }; self.onError = function(callback){ onErrorFn = callback; return self; }; self.waitFor = function(callback){ if (waitForCount == 0) throw new Error("Can not wait on already called callback."); waitForCount++; return chain(callback).onDone(decrementWaitFor).onError(self.error); }; self.waitMany = function(callback){ if (waitForCount == 0) throw new Error("Can not wait on already called callback."); waitForCount++; return chain(callback, true).onDone(decrementWaitFor).onError(self.error); }; self.done = function(callback){ decrementWaitFor(); }; self.error = function(error) { var stack = stackError.stack.split(/\n\r?/).splice(2); var nakedStack = []; stack.forEach(function(frame){ if (!frame.match(/callback\.js:\d+:\d+\)$/)) nakedStack.push(frame); }); error.stack = error.stack + '\nCalled from:\n' + nakedStack.join('\n'); onErrorFn(error); }; return self; } exports.chain = chain; ew.ngdoc?h=v1.2.7'>logtreecommitdiffstats
path: root/docs/content/guide/dev_guide.overview.ngdoc
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