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71 lines
2.0 KiB
JavaScript
Executable File
71 lines
2.0 KiB
JavaScript
Executable File
/**********************************************************************
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*
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*
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*
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**********************************************/ /* c8 ignore next 2 */
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((typeof define)[0]=='u'?function(f){module.exports=f(require)}:define)
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(function(require){ var module={} // make module AMD/node compatible...
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/*********************************************************************/
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var object = require('ig-object')
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/*********************************************************************/
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var MapProtoMixin =
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module.MapProtoMixin =
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object.Mixin('MapProtoMixin', 'soft', {
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iter: function*(){
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for(var e of this){
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yield e } },
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// NOTE: we do not touch .__keys here as no renaming is ever done...
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//
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// XXX this essentially rewrites the whole map, is there a faster/better
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// way to do this???
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// ...one way would be to decouple order from the container, i.e.
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// store the order in a separate attr/prop but this would require
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// a whole new set of ordered "type" that would overload every single
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// iteration method, not sure if this is a good idea untill we
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// reach a state whe JS "shuffles" (index-orders) its containers
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// (a-la Python)
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sort: function(keys){
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keys = (typeof(keys) == 'function'
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|| keys === undefined) ?
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[...this.keys()].sort(keys)
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: keys
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var del = this.delete.bind(this)
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var set = this.set.bind(this)
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new Set([...keys, ...this.keys()])
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.forEach(function(k){
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if(this.has(k)){
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var v = this.get(k)
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del(k)
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set(k, v) } }.bind(this))
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return this },
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replaceKey: function(old, key, ordered=true){
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if(!this.has(old)){
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return this }
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if(ordered){
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var order = [...this.keys()]
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order[order.lastIndexOf(old)] = key }
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// replace...
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var value = this.get(old)
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this.delete(old)
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this.set(key, value)
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ordered
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&& this.sort(order)
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return this },
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})
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MapProtoMixin(Map.prototype)
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/**********************************************************************
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* vim:set ts=4 sw=4 : */ return module })
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