mirror of
https://github.com/amark/gun.git
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638c2c3c23
later with @bmatusiak check sea.then for '../gun.js' vs '../' vs ... note: src/index -> core.js TODO: something about WebRTC candidates hitting ack decrement limits?
38 lines
918 B
JavaScript
38 lines
918 B
JavaScript
;(function(){
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// On event emitter generic javascript utility.
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module.exports = function onto(tag, arg, as){
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if(!tag){ return {to: onto} }
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var u, f = 'function' == typeof arg, tag = (this.tag || (this.tag = {}))[tag] || f && (
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this.tag[tag] = {tag: tag, to: onto._ = { next: function(arg){ var tmp;
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if(tmp = this.to){ tmp.next(arg) }
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}}});
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if(f){
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var be = {
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off: onto.off ||
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(onto.off = function(){
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if(this.next === onto._.next){ return !0 }
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if(this === this.the.last){
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this.the.last = this.back;
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}
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this.to.back = this.back;
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this.next = onto._.next;
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this.back.to = this.to;
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if(this.the.last === this.the){
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delete this.on.tag[this.the.tag];
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}
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}),
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to: onto._,
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next: arg,
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the: tag,
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on: this,
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as: as,
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};
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(be.back = tag.last || tag).to = be;
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return tag.last = be;
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}
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if((tag = tag.to) && u !== arg){ tag.next(arg) }
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return tag;
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};
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}()); |