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check Deps.run arg

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This commit is contained in:
David Greenspan
2013-03-07 22:01:30 -08:00
parent 9c932dadce
commit 6974cfb7b4
1 changed files with 4 additions and 1 deletions
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5
packages/deps/deps.js
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@@ -52,7 +52,7 @@
// the plan is at some point to use the parent relation
// to constrain the order that computations are processed
self._parent = parent;
self._func = (f || function () {});
self._func = f;
self._processing = false;
try {
@@ -239,6 +239,9 @@
// Links the computation to the current computation
// so that it is stopped if the current computation is invalidated.
run: function (f) {
if (typeof f !== 'function')
throw new Error('Deps.run requires a function argument');
constructingComputation = true;
var c = new Deps.Computation(f, Deps.currentComputation);