29 lines
673 B
JavaScript
29 lines
673 B
JavaScript
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ObjectRange = Class.create();
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Object.extend(ObjectRange.prototype, Enumerable);
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Object.extend(ObjectRange.prototype, {
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initialize: function(start, end, exclusive) {
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this.start = start;
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this.end = end;
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this.exclusive = exclusive;
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},
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_each: function(iterator) {
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var value = this.start;
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while (this.include(value)) {
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iterator(value);
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value = value.succ();
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}
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},
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include: function(value) {
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if (value < this.start)
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return false;
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if (this.exclusive)
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return value < this.end;
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return value <= this.end;
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}
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});
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var $R = function(start, end, exclusive) {
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return new ObjectRange(start, end, exclusive);
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}
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