287 lines
11 KiB
JavaScript
287 lines
11 KiB
JavaScript
'use strict';
|
|
|
|
(function() {
|
|
|
|
function asyncMap(forEach, collection, iterator, that, callback) {
|
|
var type = Ox.typeOf(collection),
|
|
results = type == 'object' ? {} : [];
|
|
callback = Ox.last(arguments);
|
|
that = arguments.length == 5 ? that : null;
|
|
forEach(collection, function(value, key, collection, callback) {
|
|
iterator(value, key, collection, function(value) {
|
|
results[key] = value;
|
|
callback();
|
|
});
|
|
}, that, function() {
|
|
callback(type == 'string' ? results.join('') : results);
|
|
});
|
|
};
|
|
|
|
Ox.asyncMap = function(array, iterator, that, callback) {
|
|
array = Ox.makeArray(array);
|
|
callback = Ox.last(arguments);
|
|
that = arguments.length == 4 ? that : null;
|
|
if (array.some(Ox.isArray)) {
|
|
Ox.serialMap(array, function(value, key, array, callback) {
|
|
Ox.parallelMap(Ox.makeArray(value), iterator, callback);
|
|
}, callback);
|
|
} else {
|
|
Ox.parallelMap(array, iterator, callback);
|
|
}
|
|
};
|
|
|
|
/*@
|
|
Ox.nonblockingForEach <f> Non-blocking `forEach` with synchronous iterator
|
|
(col, iterator[, that], callback[, ms]) -> <u> undefined
|
|
collection <a|o|s> Collection
|
|
iterator <f> Iterator function
|
|
value <*> Value
|
|
key <n|s> Key
|
|
collection <a|o|s> The collection
|
|
that <o> The iterator's `this` binding
|
|
callback <f> Callback function
|
|
ms <n> Number of milliseconds after which to insert a `setTimeout` call
|
|
@*/
|
|
Ox.nonblockingForEach = function(collection, iterator, that, callback, ms) {
|
|
var i = 0, keys, last = Ox.last(arguments),
|
|
n, time, type = Ox.typeOf(collection);
|
|
callback = Ox.isFunction(last) ? last : arguments[arguments.length - 2];
|
|
collection = type == 'array' || type == 'object'
|
|
? collection : Ox.slice(collection);
|
|
keys = type == 'object'
|
|
? Object.keys(collection) : Ox.range(collection.length);
|
|
ms = ms || 1000;
|
|
n = Ox.len(collection);
|
|
that = arguments.length == 5 || (
|
|
arguments.length == 4 && Ox.isFunction(last)
|
|
) ? that : null;
|
|
time = +new Date();
|
|
iterate();
|
|
function iterate() {
|
|
Ox.forEach(keys.slice(i), function(key) {
|
|
if (key in collection) {
|
|
if (iterator.call(
|
|
that, collection[key], key, collection
|
|
) === false) {
|
|
i = n;
|
|
return false;
|
|
}
|
|
}
|
|
i++;
|
|
if (+new Date() >= time + ms) {
|
|
return false; // break
|
|
}
|
|
});
|
|
if (i < n) {
|
|
setTimeout(function() {
|
|
time = +new Date();
|
|
iterate();
|
|
}, 1);
|
|
} else {
|
|
callback();
|
|
}
|
|
}
|
|
};
|
|
|
|
/*@
|
|
Ox.nonblockingMap <f> Non-blocking `map` with synchronous iterator
|
|
(collection, iterator[, that], callback[, ms]) -> <u> undefined
|
|
collection <a|o|s> Collection
|
|
iterator <f> Iterator function
|
|
that <o> The iterator's `this` binding
|
|
callback <f> Callback function
|
|
ms <n> Number of milliseconds after which to insert a `setTimeout` call
|
|
<script>
|
|
// var time = +new Date();
|
|
// Ox.nonblockingMap(
|
|
// Ox.range(1000000),
|
|
// function (value, index, array) {
|
|
// return +new Date() - time;
|
|
// },
|
|
// function(results) {
|
|
// Ox.print(results.length);
|
|
// },
|
|
// 1000
|
|
// );
|
|
</script>
|
|
> Ox.nonblockingMap(Ox.range(100000), Ox.identity, function(r) { Ox.test(r.length, 100000); })
|
|
undefined
|
|
@*/
|
|
Ox.nonblockingMap = function(collection, iterator, that, callback, ms) {
|
|
var last = Ox.last(arguments),
|
|
type = Ox.typeOf(collection),
|
|
results = type == 'object' ? {} : [];
|
|
callback = Ox.isFunction(last) ? last : arguments[arguments.length - 2];
|
|
that = arguments.length == 5 || (
|
|
arguments.length == 4 && Ox.isFunction(last)
|
|
) ? that : null;
|
|
Ox.nonblockingForEach(collection, function(value, key, collection) {
|
|
results[key] = iterator.call(that, value, key, collection);
|
|
}, function() {
|
|
callback(type == 'string' ? results.join('') : results);
|
|
}, ms);
|
|
};
|
|
|
|
/*@
|
|
Ox.parallelForEach <f> `forEach` with asynchronous iterator, running in parallel
|
|
(collection, iterator[, that], callback) -> <u> undefined
|
|
collection <a|o|s> Collection
|
|
iterator <f> Iterator function
|
|
value <*> Value
|
|
key <n|s> Key
|
|
collection <a|o|s> The collection
|
|
callback <f> Callback function
|
|
that <o> The iterator's this binding
|
|
callback <f> Callback function
|
|
<script>
|
|
Ox.test.pfeNumber = 0;
|
|
Ox.test.pfeIterator = function(value, index, array, callback) {
|
|
if (index < 5) {
|
|
Ox.test.pfeNumber++;
|
|
}
|
|
setTimeout(callback);
|
|
};
|
|
</script>
|
|
> Ox.parallelForEach(Ox.range(10), Ox.test.pfeIterator, function() { Ox.test(Ox.test.pfeNumber, 5); })
|
|
undefined
|
|
@*/
|
|
Ox.parallelForEach = function(collection, iterator, that, callback) {
|
|
var i = 0, n, type = Ox.typeOf(collection);
|
|
callback = callback || (arguments.length == 3 ? arguments[2] : Ox.noop);
|
|
collection = type == 'array' || type == 'object'
|
|
? collection : Ox.slice(collection);
|
|
n = Ox.len(collection);
|
|
that = arguments.length == 4 ? that : null;
|
|
Ox.forEach(collection, function(value, key, collection) {
|
|
iterator.call(that, value, key, collection, function() {
|
|
++i == n && callback();
|
|
});
|
|
});
|
|
};
|
|
|
|
/*@
|
|
Ox.parallelMap <f> Parallel `map` with asynchronous iterator
|
|
(collection, iterator[, that], callback) -> <u> undefined
|
|
collection <a|o|s> Collection
|
|
iterator <f> Iterator function
|
|
value <*> Value
|
|
key <n|s> Key
|
|
collection <a|o|s> The collection
|
|
callback <f> Callback function
|
|
that <o> The iterator's this binding
|
|
callback <f> Callback function
|
|
results <a|o|s> Results
|
|
<script>
|
|
// var time = +new Date();
|
|
// Ox.parallelMap(
|
|
// Ox.range(10),
|
|
// function (value, index, array, callback) {
|
|
// setTimeout(function() {
|
|
// callback(+new Date() - time);
|
|
// }, Ox.random(1000));
|
|
// },
|
|
// function(results) {
|
|
// Ox.print(results);
|
|
// }
|
|
// );
|
|
Ox.test.pmIterator = function(value, index, array, callback) {
|
|
setTimeout(callback(value - index));
|
|
};
|
|
</script>
|
|
> Ox.parallelMap(Ox.range(10), Ox.test.pmIterator, function(r) { Ox.test(Ox.sum(r), 0); })
|
|
undefined
|
|
@*/
|
|
Ox.parallelMap = function() {
|
|
asyncMap.apply(null, [Ox.parallelForEach].concat(Ox.slice(arguments)));
|
|
};
|
|
|
|
/*@
|
|
Ox.serialForEach <f> `forEach` with asynchronous iterator, run serially
|
|
(collection, iterator[, that], callback) -> <u> undefined
|
|
collection <a|o|s> Collection
|
|
iterator <f> Iterator function
|
|
value <*> Value
|
|
key <n|s> Key
|
|
collection <a|o|s> The collection
|
|
callback <f> Callback function
|
|
that <o> The iterator's this binding
|
|
callback <f> Callback function
|
|
<script>
|
|
Ox.test.sfeNumber = 0;
|
|
Ox.test.sfeIterator = function(value, index, array, callback) {
|
|
Ox.test.sfeNumber++;
|
|
setTimeout(function() {
|
|
callback(index < 4);
|
|
});
|
|
};
|
|
</script>
|
|
> Ox.serialForEach(Ox.range(10), Ox.test.sfeIterator, function() { Ox.test(Ox.test.sfeNumber, 5); })
|
|
undefined
|
|
@*/
|
|
Ox.serialForEach = function(collection, iterator, that, callback) {
|
|
var i = 0, keys, n, type = Ox.typeOf(collection);
|
|
callback = callback || (arguments.length == 3 ? arguments[2] : Ox.noop);
|
|
collection = type == 'array' || type == 'object'
|
|
? collection : Ox.slice(collection);
|
|
keys = type == 'object'
|
|
? Object.keys(collection) : Ox.range(collection.length);
|
|
n = Ox.len(collection);
|
|
that = arguments.length == 4 ? that : null;
|
|
iterate();
|
|
function iterate(value) {
|
|
if (value !== false) {
|
|
if (keys[i] in collection) {
|
|
iterator.call(
|
|
that,
|
|
collection[keys[i]],
|
|
keys[i],
|
|
collection,
|
|
++i < n ? iterate : callback
|
|
);
|
|
} else {
|
|
++i < n ? iterate() : callback();
|
|
}
|
|
} else {
|
|
callback();
|
|
}
|
|
}
|
|
};
|
|
|
|
/*@
|
|
Ox.serialMap <f> Serial `map` with asynchronous iterator
|
|
(collection, iterator[, that], callback) -> <u> undefined
|
|
collection <a|o|s> Collection
|
|
iterator <f> Iterator function
|
|
value <*> Value
|
|
key <n|s> Key
|
|
collection <a|o|s> The collection
|
|
callback <f> Callback function
|
|
that <o> The iterator's this binding
|
|
callback <f> Callback function
|
|
results <a|o|s> Results
|
|
<script>
|
|
// var time = +new Date();
|
|
// Ox.serialMap(
|
|
// Ox.range(10),
|
|
// function (value, index, array, callback) {
|
|
// setTimeout(function() {
|
|
// callback(+new Date() - time);
|
|
// }, Ox.random(1000));
|
|
// },
|
|
// function(results) {
|
|
// Ox.print(results);
|
|
// }
|
|
// );
|
|
Ox.test.smIterator = function(value, index, array, callback) {
|
|
setTimeout(callback(value - index));
|
|
};
|
|
</script>
|
|
> Ox.serialMap(Ox.range(10), Ox.test.smIterator, function(r) { Ox.test(Ox.sum(r), 0); })
|
|
undefined
|
|
@*/
|
|
Ox.serialMap = function(collection, iterator, that, callback) {
|
|
asyncMap.apply(null, [Ox.serialForEach].concat(Ox.slice(arguments)));
|
|
};
|
|
// FIXME: The above test with 10000 iterations blows the stack
|
|
|
|
}());
|