{
  "version": 3,
  "sources": ["../../src/index.js", "../../src/static.js", "../../src/TreeLock.js"],
  "sourcesContent": ["import { TreeLock } from \"./TreeLock\";\r\n\r\n\r\nexport { TreeLock };\r\n\r\nexport default (options={})=>new TreeLock(options);\r\n", "\r\nimport { timeout } from \"@randajan/sleep\";\r\n\r\n\r\nexport const _privates = new WeakMap();\r\n\r\nexport const bfn = ()=>{};\r\nexport class Timeout extends Error {}\r\n\r\nexport const toInt = (num, min, max, errorName)=>{\r\n    if (num == null) { return; }\r\n    const tp = typeof num;\r\n    if (tp !== \"number\") { throw new Error(`Expects '${errorName}' to be a 'number' but received '${tp}'`); }\r\n    if (min != null && num < min) { throw new Error(`Expects '${errorName}' to be greater than '${min}' but received '${num}'`); }\r\n    if (max != null && num > max) { throw new Error(`Expects '${errorName}' to be lesser than '${max}' but received '${num}'`); }\r\n    return Math.round(num);\r\n}\r\n\r\nexport const toTimeoutMs = (num)=>toInt(num, 0, 2147483647, \"timeout\");\r\n\r\nexport const withTimeout = (prom, tms)=>{\r\n    if (!tms) { return prom; }\r\n    return Promise.race([prom, timeout(tms, new Timeout(`Execution time exceeded ${tms/1000}s`))]);\r\n}\r\n\r\n\r\nexport const toFn = (any, errorName)=>{\r\n    if (any == null) { return; }\r\n    const tp = typeof any;\r\n    if (tp !== \"function\") { throw new Error(`Expects '${errorName}' to be a 'number' but received '${tp}'`); }\r\n    return any;\r\n}", "import { _privates, bfn, Timeout, toFn, toTimeoutMs, withTimeout } from \"./static\";\n\nexport class TreeLock {\n    constructor(options={}) {\n        const { name, ttl, on, sup } = options;\n        const _pp = _privates.get(sup);\n\n        const _p = {\n            sup,\n            queue: Promise.resolve(),\n            ram:0,\n            enqueue: !_pp ? _=>_p.queue : _=>Promise.all([_p.queue, _pp.queue]),\n            ttl:toTimeoutMs(ttl) ?? _pp?.ttl,\n            on:toFn(on) || _pp?.on || bfn,\n        }\n\n        _p.append = (sub)=>{\n            if (_p.subs) { _p.subs.push(sub); }\n            else {\n                _p.subs = [sub];\n                const enq = _p.enqueue;\n                _p.enqueue = _=>Promise.all([enq(), ..._p.subs.map(b=>b.queue)]);\n            }\n        }\n\n        const finish = ()=>_p.ram = Math.max(0, _p.ram-1);\n        const done = (r) =>{ finish(); _p.on(this, \"done\"); return r; };\n        const crash = (err)=>{\n            finish();\n            const status = (err instanceof Timeout) ? \"timeout\" : \"error\";\n            _p.on(this, status, err);\n        }\n\n        _p.run = (fn, tms, args)=>{     \n            _p.ram++;\n            if (this.ram + this.ramSup > 1) { _p.on(this, \"enter\"); }\n\n            const exec = () => {\n                _p.on(this, \"start\");\n                return withTimeout(fn(...args), tms).then(done);\n            };\n        \n            const next = _p.enqueue().then(exec);\n            _p.queue = next.catch(crash);\n            return next;\n        }\n\n        const enumerable = true;\n        Object.defineProperties(this, {\n            name:{ value:name },\n            sup:{ value:sup },\n            subs: { get:_=>[..._p.subs] },\n            ram:{ enumerable, get:_=>_p.ram },\n            ramSup:{ enumerable, get:!_pp ? _=>0 : _=>sup.ram + sup.ramSup },\n            ramSub:{ enumerable, get:_=>_p.subs.reduce((r, s)=>r+s.ram+s.ramSub, 0) },\n            queue:{ get:_=>_p.queue}\n        });\n\n        _privates.set(this, _p);\n        if (_pp) { _pp.append(this); }\n    }\n\n    run(fn, ttl, ...args) {\n        const _p = _privates.get(this);\n        ttl = toTimeoutMs(ttl) ?? _p.ttl;\n        return _p.run(fn, ttl, args);\n    }\n\n    wrap(fn, ttl) {\n        const _p = _privates.get(this);\n        ttl = toTimeoutMs(ttl) ?? _p.ttl;\n        return (...args) => _p.run(fn, ttl, args);\n    }\n\n    sub(options={}) {\n        return new TreeLock({\n            ...options,\n            sup:this\n        });\n    }\n\n}\n\n"],
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