summaryrefslogtreecommitdiffstats
path: root/dom/tests/mochitest/ajax/mochikit/MochiKit/Iter.js
diff options
context:
space:
mode:
Diffstat (limited to 'dom/tests/mochitest/ajax/mochikit/MochiKit/Iter.js')
-rw-r--r--dom/tests/mochitest/ajax/mochikit/MochiKit/Iter.js851
1 files changed, 851 insertions, 0 deletions
diff --git a/dom/tests/mochitest/ajax/mochikit/MochiKit/Iter.js b/dom/tests/mochitest/ajax/mochikit/MochiKit/Iter.js
new file mode 100644
index 000000000..c2fcbeee0
--- /dev/null
+++ b/dom/tests/mochitest/ajax/mochikit/MochiKit/Iter.js
@@ -0,0 +1,851 @@
+/***
+
+MochiKit.Iter 1.4
+
+See <http://mochikit.com/> for documentation, downloads, license, etc.
+
+(c) 2005 Bob Ippolito. All rights Reserved.
+
+***/
+
+if (typeof(dojo) != 'undefined') {
+ dojo.provide('MochiKit.Iter');
+ dojo.require('MochiKit.Base');
+}
+
+if (typeof(JSAN) != 'undefined') {
+ JSAN.use("MochiKit.Base", []);
+}
+
+try {
+ if (typeof(MochiKit.Base) == 'undefined') {
+ throw "";
+ }
+} catch (e) {
+ throw "MochiKit.Iter depends on MochiKit.Base!";
+}
+
+if (typeof(MochiKit.Iter) == 'undefined') {
+ MochiKit.Iter = {};
+}
+
+MochiKit.Iter.NAME = "MochiKit.Iter";
+MochiKit.Iter.VERSION = "1.4";
+MochiKit.Base.update(MochiKit.Iter, {
+ __repr__: function () {
+ return "[" + this.NAME + " " + this.VERSION + "]";
+ },
+ toString: function () {
+ return this.__repr__();
+ },
+
+ /** @id MochiKit.Iter.registerIteratorFactory */
+ registerIteratorFactory: function (name, check, iterfactory, /* optional */ override) {
+ MochiKit.Iter.iteratorRegistry.register(name, check, iterfactory, override);
+ },
+
+ /** @id MochiKit.Iter.iter */
+ iter: function (iterable, /* optional */ sentinel) {
+ var self = MochiKit.Iter;
+ if (arguments.length == 2) {
+ return self.takewhile(
+ function (a) { return a != sentinel; },
+ iterable
+ );
+ }
+ if (typeof(iterable.next) == 'function') {
+ return iterable;
+ } else if (typeof(iterable.iter) == 'function') {
+ return iterable.iter();
+ /*
+ } else if (typeof(iterable.__iterator__) == 'function') {
+ //
+ // XXX: We can't support JavaScript 1.7 __iterator__ directly
+ // because of Object.prototype.__iterator__
+ //
+ return iterable.__iterator__();
+ */
+ }
+
+ try {
+ return self.iteratorRegistry.match(iterable);
+ } catch (e) {
+ var m = MochiKit.Base;
+ if (e == m.NotFound) {
+ e = new TypeError(typeof(iterable) + ": " + m.repr(iterable) + " is not iterable");
+ }
+ throw e;
+ }
+ },
+
+ /** @id MochiKit.Iter.count */
+ count: function (n) {
+ if (!n) {
+ n = 0;
+ }
+ var m = MochiKit.Base;
+ return {
+ repr: function () { return "count(" + n + ")"; },
+ toString: m.forwardCall("repr"),
+ next: m.counter(n)
+ };
+ },
+
+ /** @id MochiKit.Iter.cycle */
+ cycle: function (p) {
+ var self = MochiKit.Iter;
+ var m = MochiKit.Base;
+ var lst = [];
+ var iterator = self.iter(p);
+ return {
+ repr: function () { return "cycle(...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ try {
+ var rval = iterator.next();
+ lst.push(rval);
+ return rval;
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ if (lst.length === 0) {
+ this.next = function () {
+ throw self.StopIteration;
+ };
+ } else {
+ var i = -1;
+ this.next = function () {
+ i = (i + 1) % lst.length;
+ return lst[i];
+ };
+ }
+ return this.next();
+ }
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.repeat */
+ repeat: function (elem, /* optional */n) {
+ var m = MochiKit.Base;
+ if (typeof(n) == 'undefined') {
+ return {
+ repr: function () {
+ return "repeat(" + m.repr(elem) + ")";
+ },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ return elem;
+ }
+ };
+ }
+ return {
+ repr: function () {
+ return "repeat(" + m.repr(elem) + ", " + n + ")";
+ },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ if (n <= 0) {
+ throw MochiKit.Iter.StopIteration;
+ }
+ n -= 1;
+ return elem;
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.next */
+ next: function (iterator) {
+ return iterator.next();
+ },
+
+ /** @id MochiKit.Iter.izip */
+ izip: function (p, q/*, ...*/) {
+ var m = MochiKit.Base;
+ var self = MochiKit.Iter;
+ var next = self.next;
+ var iterables = m.map(self.iter, arguments);
+ return {
+ repr: function () { return "izip(...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () { return m.map(next, iterables); }
+ };
+ },
+
+ /** @id MochiKit.Iter.ifilter */
+ ifilter: function (pred, seq) {
+ var m = MochiKit.Base;
+ seq = MochiKit.Iter.iter(seq);
+ if (pred === null) {
+ pred = m.operator.truth;
+ }
+ return {
+ repr: function () { return "ifilter(...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ while (true) {
+ var rval = seq.next();
+ if (pred(rval)) {
+ return rval;
+ }
+ }
+ // mozilla warnings aren't too bright
+ return undefined;
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.ifilterfalse */
+ ifilterfalse: function (pred, seq) {
+ var m = MochiKit.Base;
+ seq = MochiKit.Iter.iter(seq);
+ if (pred === null) {
+ pred = m.operator.truth;
+ }
+ return {
+ repr: function () { return "ifilterfalse(...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ while (true) {
+ var rval = seq.next();
+ if (!pred(rval)) {
+ return rval;
+ }
+ }
+ // mozilla warnings aren't too bright
+ return undefined;
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.islice */
+ islice: function (seq/*, [start,] stop[, step] */) {
+ var self = MochiKit.Iter;
+ var m = MochiKit.Base;
+ seq = self.iter(seq);
+ var start = 0;
+ var stop = 0;
+ var step = 1;
+ var i = -1;
+ if (arguments.length == 2) {
+ stop = arguments[1];
+ } else if (arguments.length == 3) {
+ start = arguments[1];
+ stop = arguments[2];
+ } else {
+ start = arguments[1];
+ stop = arguments[2];
+ step = arguments[3];
+ }
+ return {
+ repr: function () {
+ return "islice(" + ["...", start, stop, step].join(", ") + ")";
+ },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ var rval;
+ while (i < start) {
+ rval = seq.next();
+ i++;
+ }
+ if (start >= stop) {
+ throw self.StopIteration;
+ }
+ start += step;
+ return rval;
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.imap */
+ imap: function (fun, p, q/*, ...*/) {
+ var m = MochiKit.Base;
+ var self = MochiKit.Iter;
+ var iterables = m.map(self.iter, m.extend(null, arguments, 1));
+ var map = m.map;
+ var next = self.next;
+ return {
+ repr: function () { return "imap(...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ return fun.apply(this, map(next, iterables));
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.applymap */
+ applymap: function (fun, seq, self) {
+ seq = MochiKit.Iter.iter(seq);
+ var m = MochiKit.Base;
+ return {
+ repr: function () { return "applymap(...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ return fun.apply(self, seq.next());
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.chain */
+ chain: function (p, q/*, ...*/) {
+ // dumb fast path
+ var self = MochiKit.Iter;
+ var m = MochiKit.Base;
+ if (arguments.length == 1) {
+ return self.iter(arguments[0]);
+ }
+ var argiter = m.map(self.iter, arguments);
+ return {
+ repr: function () { return "chain(...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ while (argiter.length > 1) {
+ try {
+ return argiter[0].next();
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ argiter.shift();
+ }
+ }
+ if (argiter.length == 1) {
+ // optimize last element
+ var arg = argiter.shift();
+ this.next = m.bind("next", arg);
+ return this.next();
+ }
+ throw self.StopIteration;
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.takewhile */
+ takewhile: function (pred, seq) {
+ var self = MochiKit.Iter;
+ seq = self.iter(seq);
+ return {
+ repr: function () { return "takewhile(...)"; },
+ toString: MochiKit.Base.forwardCall("repr"),
+ next: function () {
+ var rval = seq.next();
+ if (!pred(rval)) {
+ this.next = function () {
+ throw self.StopIteration;
+ };
+ this.next();
+ }
+ return rval;
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.dropwhile */
+ dropwhile: function (pred, seq) {
+ seq = MochiKit.Iter.iter(seq);
+ var m = MochiKit.Base;
+ var bind = m.bind;
+ return {
+ "repr": function () { return "dropwhile(...)"; },
+ "toString": m.forwardCall("repr"),
+ "next": function () {
+ while (true) {
+ var rval = seq.next();
+ if (!pred(rval)) {
+ break;
+ }
+ }
+ this.next = bind("next", seq);
+ return rval;
+ }
+ };
+ },
+
+ _tee: function (ident, sync, iterable) {
+ sync.pos[ident] = -1;
+ var m = MochiKit.Base;
+ var listMin = m.listMin;
+ return {
+ repr: function () { return "tee(" + ident + ", ...)"; },
+ toString: m.forwardCall("repr"),
+ next: function () {
+ var rval;
+ var i = sync.pos[ident];
+
+ if (i == sync.max) {
+ rval = iterable.next();
+ sync.deque.push(rval);
+ sync.max += 1;
+ sync.pos[ident] += 1;
+ } else {
+ rval = sync.deque[i - sync.min];
+ sync.pos[ident] += 1;
+ if (i == sync.min && listMin(sync.pos) != sync.min) {
+ sync.min += 1;
+ sync.deque.shift();
+ }
+ }
+ return rval;
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.tee */
+ tee: function (iterable, n/* = 2 */) {
+ var rval = [];
+ var sync = {
+ "pos": [],
+ "deque": [],
+ "max": -1,
+ "min": -1
+ };
+ if (arguments.length == 1 || typeof(n) == "undefined" || n === null) {
+ n = 2;
+ }
+ var self = MochiKit.Iter;
+ iterable = self.iter(iterable);
+ var _tee = self._tee;
+ for (var i = 0; i < n; i++) {
+ rval.push(_tee(i, sync, iterable));
+ }
+ return rval;
+ },
+
+ /** @id MochiKit.Iter.list */
+ list: function (iterable) {
+ // Fast-path for Array and Array-like
+ var rval;
+ if (iterable instanceof Array) {
+ return iterable.slice();
+ }
+ // this is necessary to avoid a Safari crash
+ if (typeof(iterable) == "function" &&
+ !(iterable instanceof Function) &&
+ typeof(iterable.length) == 'number') {
+ rval = [];
+ for (var i = 0; i < iterable.length; i++) {
+ rval.push(iterable[i]);
+ }
+ return rval;
+ }
+
+ var self = MochiKit.Iter;
+ iterable = self.iter(iterable);
+ var rval = [];
+ try {
+ while (true) {
+ rval.push(iterable.next());
+ }
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ return rval;
+ }
+ // mozilla warnings aren't too bright
+ return undefined;
+ },
+
+
+ /** @id MochiKit.Iter.reduce */
+ reduce: function (fn, iterable, /* optional */initial) {
+ var i = 0;
+ var x = initial;
+ var self = MochiKit.Iter;
+ iterable = self.iter(iterable);
+ if (arguments.length < 3) {
+ try {
+ x = iterable.next();
+ } catch (e) {
+ if (e == self.StopIteration) {
+ e = new TypeError("reduce() of empty sequence with no initial value");
+ }
+ throw e;
+ }
+ i++;
+ }
+ try {
+ while (true) {
+ x = fn(x, iterable.next());
+ }
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ }
+ return x;
+ },
+
+ /** @id MochiKit.Iter.range */
+ range: function (/* [start,] stop[, step] */) {
+ var start = 0;
+ var stop = 0;
+ var step = 1;
+ if (arguments.length == 1) {
+ stop = arguments[0];
+ } else if (arguments.length == 2) {
+ start = arguments[0];
+ stop = arguments[1];
+ } else if (arguments.length == 3) {
+ start = arguments[0];
+ stop = arguments[1];
+ step = arguments[2];
+ } else {
+ throw new TypeError("range() takes 1, 2, or 3 arguments!");
+ }
+ if (step === 0) {
+ throw new TypeError("range() step must not be 0");
+ }
+ return {
+ next: function () {
+ if ((step > 0 && start >= stop) || (step < 0 && start <= stop)) {
+ throw MochiKit.Iter.StopIteration;
+ }
+ var rval = start;
+ start += step;
+ return rval;
+ },
+ repr: function () {
+ return "range(" + [start, stop, step].join(", ") + ")";
+ },
+ toString: MochiKit.Base.forwardCall("repr")
+ };
+ },
+
+ /** @id MochiKit.Iter.sum */
+ sum: function (iterable, start/* = 0 */) {
+ if (typeof(start) == "undefined" || start === null) {
+ start = 0;
+ }
+ var x = start;
+ var self = MochiKit.Iter;
+ iterable = self.iter(iterable);
+ try {
+ while (true) {
+ x += iterable.next();
+ }
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ }
+ return x;
+ },
+
+ /** @id MochiKit.Iter.exhaust */
+ exhaust: function (iterable) {
+ var self = MochiKit.Iter;
+ iterable = self.iter(iterable);
+ try {
+ while (true) {
+ iterable.next();
+ }
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ }
+ },
+
+ /** @id MochiKit.Iter.forEach */
+ forEach: function (iterable, func, /* optional */self) {
+ var m = MochiKit.Base;
+ if (arguments.length > 2) {
+ func = m.bind(func, self);
+ }
+ // fast path for array
+ if (m.isArrayLike(iterable)) {
+ try {
+ for (var i = 0; i < iterable.length; i++) {
+ func(iterable[i]);
+ }
+ } catch (e) {
+ if (e != MochiKit.Iter.StopIteration) {
+ throw e;
+ }
+ }
+ } else {
+ self = MochiKit.Iter;
+ self.exhaust(self.imap(func, iterable));
+ }
+ },
+
+ /** @id MochiKit.Iter.every */
+ every: function (iterable, func) {
+ var self = MochiKit.Iter;
+ try {
+ self.ifilterfalse(func, iterable).next();
+ return false;
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ return true;
+ }
+ },
+
+ /** @id MochiKit.Iter.sorted */
+ sorted: function (iterable, /* optional */cmp) {
+ var rval = MochiKit.Iter.list(iterable);
+ if (arguments.length == 1) {
+ cmp = MochiKit.Base.compare;
+ }
+ rval.sort(cmp);
+ return rval;
+ },
+
+ /** @id MochiKit.Iter.reversed */
+ reversed: function (iterable) {
+ var rval = MochiKit.Iter.list(iterable);
+ rval.reverse();
+ return rval;
+ },
+
+ /** @id MochiKit.Iter.some */
+ some: function (iterable, func) {
+ var self = MochiKit.Iter;
+ try {
+ self.ifilter(func, iterable).next();
+ return true;
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ return false;
+ }
+ },
+
+ /** @id MochiKit.Iter.iextend */
+ iextend: function (lst, iterable) {
+ if (MochiKit.Base.isArrayLike(iterable)) {
+ // fast-path for array-like
+ for (var i = 0; i < iterable.length; i++) {
+ lst.push(iterable[i]);
+ }
+ } else {
+ var self = MochiKit.Iter;
+ iterable = self.iter(iterable);
+ try {
+ while (true) {
+ lst.push(iterable.next());
+ }
+ } catch (e) {
+ if (e != self.StopIteration) {
+ throw e;
+ }
+ }
+ }
+ return lst;
+ },
+
+ /** @id MochiKit.Iter.groupby */
+ groupby: function(iterable, /* optional */ keyfunc) {
+ var m = MochiKit.Base;
+ var self = MochiKit.Iter;
+ if (arguments.length < 2) {
+ keyfunc = m.operator.identity;
+ }
+ iterable = self.iter(iterable);
+
+ // shared
+ var pk = undefined;
+ var k = undefined;
+ var v;
+
+ function fetch() {
+ v = iterable.next();
+ k = keyfunc(v);
+ };
+
+ function eat() {
+ var ret = v;
+ v = undefined;
+ return ret;
+ };
+
+ var first = true;
+ var compare = m.compare;
+ return {
+ repr: function () { return "groupby(...)"; },
+ next: function() {
+ // iterator-next
+
+ // iterate until meet next group
+ while (compare(k, pk) === 0) {
+ fetch();
+ if (first) {
+ first = false;
+ break;
+ }
+ }
+ pk = k;
+ return [k, {
+ next: function() {
+ // subiterator-next
+ if (v == undefined) { // Is there something to eat?
+ fetch();
+ }
+ if (compare(k, pk) !== 0) {
+ throw self.StopIteration;
+ }
+ return eat();
+ }
+ }];
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.groupby_as_array */
+ groupby_as_array: function (iterable, /* optional */ keyfunc) {
+ var m = MochiKit.Base;
+ var self = MochiKit.Iter;
+ if (arguments.length < 2) {
+ keyfunc = m.operator.identity;
+ }
+
+ iterable = self.iter(iterable);
+ var result = [];
+ var first = true;
+ var prev_key;
+ var compare = m.compare;
+ while (true) {
+ try {
+ var value = iterable.next();
+ var key = keyfunc(value);
+ } catch (e) {
+ if (e == self.StopIteration) {
+ break;
+ }
+ throw e;
+ }
+ if (first || compare(key, prev_key) !== 0) {
+ var values = [];
+ result.push([key, values]);
+ }
+ values.push(value);
+ first = false;
+ prev_key = key;
+ }
+ return result;
+ },
+
+ /** @id MochiKit.Iter.arrayLikeIter */
+ arrayLikeIter: function (iterable) {
+ var i = 0;
+ return {
+ repr: function () { return "arrayLikeIter(...)"; },
+ toString: MochiKit.Base.forwardCall("repr"),
+ next: function () {
+ if (i >= iterable.length) {
+ throw MochiKit.Iter.StopIteration;
+ }
+ return iterable[i++];
+ }
+ };
+ },
+
+ /** @id MochiKit.Iter.hasIterateNext */
+ hasIterateNext: function (iterable) {
+ return (iterable && typeof(iterable.iterateNext) == "function");
+ },
+
+ /** @id MochiKit.Iter.iterateNextIter */
+ iterateNextIter: function (iterable) {
+ return {
+ repr: function () { return "iterateNextIter(...)"; },
+ toString: MochiKit.Base.forwardCall("repr"),
+ next: function () {
+ var rval = iterable.iterateNext();
+ if (rval === null || rval === undefined) {
+ throw MochiKit.Iter.StopIteration;
+ }
+ return rval;
+ }
+ };
+ }
+});
+
+
+MochiKit.Iter.EXPORT_OK = [
+ "iteratorRegistry",
+ "arrayLikeIter",
+ "hasIterateNext",
+ "iterateNextIter",
+];
+
+MochiKit.Iter.EXPORT = [
+ "StopIteration",
+ "registerIteratorFactory",
+ "iter",
+ "count",
+ "cycle",
+ "repeat",
+ "next",
+ "izip",
+ "ifilter",
+ "ifilterfalse",
+ "islice",
+ "imap",
+ "applymap",
+ "chain",
+ "takewhile",
+ "dropwhile",
+ "tee",
+ "list",
+ "reduce",
+ "range",
+ "sum",
+ "exhaust",
+ "forEach",
+ "every",
+ "sorted",
+ "reversed",
+ "some",
+ "iextend",
+ "groupby",
+ "groupby_as_array"
+];
+
+MochiKit.Iter.__new__ = function () {
+ var m = MochiKit.Base;
+ // Re-use StopIteration if exists (e.g. SpiderMonkey)
+ if (typeof(StopIteration) != "undefined") {
+ this.StopIteration = StopIteration;
+ } else {
+ /** @id MochiKit.Iter.StopIteration */
+ this.StopIteration = new m.NamedError("StopIteration");
+ }
+ this.iteratorRegistry = new m.AdapterRegistry();
+ // Register the iterator factory for arrays
+ this.registerIteratorFactory(
+ "arrayLike",
+ m.isArrayLike,
+ this.arrayLikeIter
+ );
+
+ this.registerIteratorFactory(
+ "iterateNext",
+ this.hasIterateNext,
+ this.iterateNextIter
+ );
+
+ this.EXPORT_TAGS = {
+ ":common": this.EXPORT,
+ ":all": m.concat(this.EXPORT, this.EXPORT_OK)
+ };
+
+ m.nameFunctions(this);
+
+};
+
+MochiKit.Iter.__new__();
+
+//
+// XXX: Internet Explorer blows
+//
+if (MochiKit.__export__) {
+ reduce = MochiKit.Iter.reduce;
+}
+
+MochiKit.Base._exportSymbols(this, MochiKit.Iter);