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//>>built
define("dojox/lang/functional/sequence", ["dojo/_base/lang", "./lambda"], function(lang, df){
// This module adds high-level functions and related constructs:
// - sequence generators
// If you want more general sequence builders check out listcomp.js and
// unfold() (in fold.js).
// Defined methods:
// - take any valid lambda argument as the functional argument
/*=====
var df = dojox.lang.functional;
=====*/
lang.mixin(df, {
// sequence generators
repeat: function(/*Number*/ n, /*Function|String|Array*/ f, /*Object*/ z, /*Object?*/ o){
// summary: builds an array by repeatedly applying a unary function N times
// with a seed value Z. N should be greater than 0.
o = o || dojo.global; f = df.lambda(f);
var t = new Array(n), i = 1;
t[0] = z;
for(; i < n; t[i] = z = f.call(o, z), ++i);
return t; // Array
},
until: function(/*Function|String|Array*/ pr, /*Function|String|Array*/ f, /*Object*/ z, /*Object?*/ o){
// summary: builds an array by repeatedly applying a unary function with
// a seed value Z until the predicate is satisfied.
o = o || dojo.global; f = df.lambda(f); pr = df.lambda(pr);
var t = [];
for(; !pr.call(o, z); t.push(z), z = f.call(o, z));
return t; // Array
}
});
return df;
});
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