2 lines
1.0 KiB
JavaScript
2 lines
1.0 KiB
JavaScript
var a=Object.defineProperty;var r=(e,c,t)=>c in e?a(e,c,{enumerable:!0,configurable:!0,writable:!0,value:t}):e[c]=t;var p=(e,c,t)=>(r(e,typeof c!="symbol"?c+"":c,t),t);import{Machine as d}from'../machine.js';import{DefaultMap as l}from'../utils/default-map.js';import{match as u}from'../utils/match.js';var k=(t=>(t[t.Push=0]="Push",t[t.Pop=1]="Pop",t))(k||{});let y={[0](e,c){let t=c.id,s=e.stack,i=e.stack.indexOf(t);if(i!==-1){let n=e.stack.slice();return n.splice(i,1),n.push(t),s=n,{...e,stack:s}}return{...e,stack:[...e.stack,t]}},[1](e,c){let t=c.id,s=e.stack.indexOf(t);if(s===-1)return e;let i=e.stack.slice();return i.splice(s,1),{...e,stack:i}}};class o extends d{constructor(){super(...arguments);p(this,"actions",{push:t=>this.send({type:0,id:t}),pop:t=>this.send({type:1,id:t})});p(this,"selectors",{isTop:(t,s)=>t.stack[t.stack.length-1]===s,inStack:(t,s)=>t.stack.includes(s)})}static new(){return new o({stack:[]})}reduce(t,s){return u(s.type,y,t,s)}}const x=new l(()=>o.new());export{k as ActionTypes,x as stackMachines};
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