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fix handling of errors in promises

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This commit is contained in:
Leo Horie 2014-03-21 23:20:47 -04:00
parent 45b13165f6
commit 77d5484169
6 changed files with 48 additions and 22 deletions
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33
archive/v0.1.1/mithril-tests.js
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@ -307,14 +307,20 @@ new function(window) {
var next = m.deferred()
if (!success) success = identity
if (!error) error = identity
resolvers.push(function(value) {
var result = success(value)
next.resolve(result !== undefined ? result : value)
})
rejecters.push(function(value) {
var result = error(value)
next.reject(result !== undefined ? result : value)
})
function push(list, method, callback) {
list.push(function(value) {
try {
var result = callback(value)
next[method](result !== undefined ? result : value)
}
catch (e) {
if (e instanceof Error && e.constructor !== Error) throw e
else next.reject(e)
}
})
}
push(resolvers, "resolve", success)
push(rejecters, "reject", error)
return next.promise
}
return object
@ -719,7 +725,7 @@ function testMithril(mock) {
test(function() {
var value
var deferred = m.deferred()
deferred.promise.then(function(value) {return "foo"}).then(function(data) {value = data})
deferred.promise.then(function(data) {return "foo"}).then(function(data) {value = data})
deferred.resolve("test")
return value === "foo"
})
@ -733,10 +739,17 @@ function testMithril(mock) {
test(function() {
var value
var deferred = m.deferred()
deferred.promise.then(null, function(value) {return "foo"}).then(null, function(data) {value = data})
deferred.promise.then(null, function(data) {return "foo"}).then(null, function(data) {value = data})
deferred.reject("test")
return value === "foo"
})
test(function() {
var value1, value2
var deferred = m.deferred()
deferred.promise.then(function(data) {throw new Error}).then(function(data) {value1 = 1}, function(data) {value2 = data})
deferred.resolve("test")
return value1 === undefined && value2 instanceof Error
})
//m.sync
test(function() {