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ensure upstream does not affect ended stream

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This commit is contained in:
Leo Horie 2016-06-20 22:25:43 -04:00
parent f5bb364b22
commit a875f7e162
2 changed files with 14 additions and 0 deletions
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4
util/stream.js
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@ -132,6 +132,10 @@ function registerDependency(stream, parents) {
}
}
function unregisterStream(stream) {
for (var i = 0; i < stream._state.parents.length; i++) {
var parent = stream._state.parents[i]
delete parent._state.deps[stream._state.id]
}
for (var id in stream._state.deps) {
var dependent = stream._state.deps[id]
var index = dependent._state.parents.indexOf(stream)

10
util/tests/test-stream.js
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@ -193,6 +193,16 @@ o.spec("stream", function() {
o(doubled()).equals(undefined)
})
o("upstream does not affect ended stream", function() {
var stream = Stream.stream(2)
var doubled = Stream.combine(function(stream) {return stream() * 2}, [stream])
doubled.end(true)
stream(4)
o(doubled()).equals(4)
})
})
o.spec("error", function() {
o("error() works", function() {