@avatijs/signal/dist/cjs/debug/index.js

Signal package part of Avati project

/*!
 * @avatijs/signal 0.3.1
 * Copyright (c) 2024 Khaled Sameer <khaled.smq@hotmail.com>
 * Licensed under MIT, https://opensource.org/licenses/MIT/
 * Please visit https://avati.io/ for details.
 */(()=>{"use strict";var e={d:(t,i)=>{for(var s in i)e.o(i,s)&&!e.o(t,s)&&Object.defineProperty(t,s,{enumerable:!0,get:i[s]})},o:(e,t)=>Object.prototype.hasOwnProperty.call(e,t),r:e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"t",{value:!0})}},t={};e.r(t),e.d(t,{SignalMonitor:()=>f,debug:()=>b,getSignalDepth:()=>g,hasCircularDependency:()=>w,isSignal:()=>m,resetSignalSystem:()=>d,serializeSignal:()=>p});class i extends Error{constructor(e){super(`Cannot ${e} a disposed signal`),this.name="SignalDisposedError"}}class s extends Error{constructor(e){super("Circular dependency detected"+(e?` in signal "${e}"`:"")),this.name="CircularDependencyError"}}class r{constructor(){Object.defineProperty(this,"computationStack",{enumerable:!0,configurable:!0,writable:!0,value:[]}),Object.defineProperty(this,"batchDepth",{enumerable:!0,configurable:!0,writable:!0,value:0}),Object.defineProperty(this,"batchQueue",{enumerable:!0,configurable:!0,writable:!0,value:new Set}),Object.defineProperty(this,"activeEffects",{enumerable:!0,configurable:!0,writable:!0,value:new Set})}static getInstance(){return this.instance||(this.instance=new r),this.instance}getCurrentComputation(){return this.computationStack[this.computationStack.length-1]}pushComputation(e){e&&this.computationStack.includes(e)||this.computationStack.push(e)}popComputation(){this.computationStack.pop()}isBatching(){return this.batchDepth>0}beginBatch(){this.batchDepth++}endBatch(){this.batchDepth--,0===this.batchDepth&&this.flushBatchQueue()}addToBatchQueue(e){this.batchQueue.add(e)}flushBatchQueue(){const e=new Set(this.batchQueue);this.batchQueue.clear();const t=new Set;for(const i of e)for(const e of i.getDependents())t.add(e);for(const e of t)e.markDirty()}setCurrentComputation(e){this.computationStack[this.computationStack.length-1]=e}registerEffect(e){this.activeEffects.add(e)}unregisterEffect(e){this.activeEffects.delete(e)}isInEffect(){return this.activeEffects.size>0}}class n{constructor(e,t={}){Object.defineProperty(this,"equals",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),Object.defineProperty(this,"name",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),Object.defineProperty(this,"dependents",{enumerable:!0,configurable:!0,writable:!0,value:new Set}),Object.defineProperty(this,"disposed",{enumerable:!0,configurable:!0,writable:!0,value:!1}),Object.defineProperty(this,"i",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),this.i=e,this.equals=t.equals??Object.is,this.name=t.name||"anonymous"}isCommutable(){throw Error("Method not implemented.")}get value(){if(this.disposed)throw new i("read from");return this.trackDependency(),this.i}set value(e){if(this.disposed)throw new i("write to");this.equals(this.i,e)||(this.i=e,this.notifyDependents())}get_value_bypass_tracking(){if(this.disposed)throw new i("read from");return this.i}update(e){this.value=e(this.i)}addDependent(e){this.dependents.add(e)}removeDependent(e){this.dependents.delete(e)}notifyDependents(){const e=r.getInstance();if(e.isBatching())e.addToBatchQueue(this);else for(const e of this.dependents)e.markDirty()}dispose(){if(this.disposed)return;this.disposed=!0;const e=new Set(this.dependents);this.dependents.clear();for(const t of e)"ComputedSignal"==t.constructor.name||"ComputedSignal"==t.signal?.constructor.name?("ComputedSignal"==t.constructor.name?t:t.signal).dispose():t.dispose()}isDisposed(){return this.disposed}getDependents(){return this.dependents||new Set}hasDependents(){return this.dependents.size>0}toString(){return`Signal(${this.name})`}trackDependency(){const e=r.getInstance().getCurrentComputation();e&&(e.addDependency(this),this.addDependent(e))}}class a{constructor(){Object.defineProperty(this,"queue",{enumerable:!0,configurable:!0,writable:!0,value:new Set}),Object.defineProperty(this,"processing",{enumerable:!0,configurable:!0,writable:!0,value:!1}),Object.defineProperty(this,"updateDepth",{enumerable:!0,configurable:!0,writable:!0,value:0}),Object.defineProperty(this,"maxUpdateDepth",{enumerable:!0,configurable:!0,writable:!0,value:1e3})}static getInstance(){return this.instance||(this.instance=new a),this.instance}schedule(e){if(this.updateDepth>=this.maxUpdateDepth)throw Error("Maximum update depth exceeded - possible circular dependency");this.queue.add(e),this.processing||this.processQueue()}processQueue(){this.processing=!0,this.updateDepth++;try{for(;this.queue.size>0;){const e=Array.from(this.queue);this.queue.clear(),e.sort(((e,t)=>e.getDepth()-t.getDepth()));for(const t of e)t.isDirty()&&!t.isDisposed()&&t.recompute()}}finally{this.processing=!1,this.updateDepth--}}}class o{constructor(e){Object.defineProperty(this,"dirty",{enumerable:!0,configurable:!0,writable:!0,value:!0}),Object.defineProperty(this,"disposed",{enumerable:!0,configurable:!0,writable:!0,value:!1}),Object.defineProperty(this,"dependencies",{enumerable:!0,configurable:!0,writable:!0,value:new Set}),Object.defineProperty(this,"dependents",{enumerable:!0,configurable:!0,writable:!0,value:new Set}),Object.defineProperty(this,"depth",{enumerable:!0,configurable:!0,writable:!0,value:0}),Object.defineProperty(this,"name",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),this.name=e}addDependency(e){this.dependencies.has(e)||(this.dependencies.add(e),"ComputedSignal"==e.constructor.name&&this.updateDepth())}removeDependency(e){this.dependencies.delete(e)&&this.updateDepth()}dispose(){this.disposed||(this.disposed=!0,this.clearDependencies(),this.dependents.clear())}isDirty(){return this.dirty}isDisposed(){return this.disposed}getDepth(){return this.depth}markDirty(){this.disposed||(this.dirty=!0,a.getInstance().schedule(this))}hasSignal(e){return this.dependencies.has(e)}clearDependencies(){for(const e of this.dependencies)e.removeDependent(this);this.dependencies.clear(),this.updateDepth()}updateDepth(){const e=this.depth;let t=0;for(const e of this.dependencies)"ComputedSignal"==e.constructor.name&&(t=Math.max(t,e.getDepth()+1));if(e!==t){this.depth=t;for(const e of this.dependents)e.updateDepth()}}}class h extends o{constructor(e){super("subscription"),Object.defineProperty(this,"callback",{enumerable:!0,configurable:!0,writable:!0,value:e})}recompute(){if(this.disposed)return;const e=r.getInstance(),t=e.getCurrentComputation();e.setCurrentComputation(this);try{this.callback()}finally{t&&e.setCurrentComputation(t),this.dirty=!1}}}class u extends n{constructor(e,t={}){super(e,t)}subscribe(e,t={skipInitial:!1}){if(this.disposed)throw new i("subscribe to");let s=!1;const r=new h((()=>{if(!t.skipInitial||s)return e(this.value);s=!0}));return r.recompute(),()=>r.dispose()}}class c{constructor(e,t){Object.defineProperty(this,"computation",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),Object.defineProperty(this,"cleanup",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),Object.defineProperty(this,"disposed",{enumerable:!0,configurable:!0,writable:!0,value:!1}),this.computation=new class extends o{constructor(e,i){super(t),Object.defineProperty(this,"effect",{enumerable:!0,configurable:!0,writable:!0,value:e}),Object.defineProperty(this,"fn",{enumerable:!0,configurable:!0,writable:!0,value:i})}recompute(){if(this.disposed)return;const e=r.getInstance();e.pushComputation(this);try{e.pushComputation(this),e.registerEffect(this.effect),this.effect.runEffect()}finally{e.unregisterEffect(this.effect),e.popComputation(),this.dirty=!1}}}(this,e),this.computation.recompute()}dispose(){if(!this.disposed){if(this.disposed=!0,this.cleanup)try{this.cleanup()}catch(e){}this.computation.dispose()}}runEffect(){if(!this.disposed){if(this.cleanup)try{this.cleanup()}catch(e){}try{this.cleanup=this.computation.fn()}catch(e){throw e}}}}class l extends u{constructor(e,t={}){super({},t),Object.defineProperty(this,"computation",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),Object.defineProperty(this,"computeFn",{enumerable:!0,configurable:!0,writable:!0,value:void 0}),this.computeFn=e,this.computation=new class extends o{constructor(e){super(),Object.defineProperty(this,"signal",{enumerable:!0,configurable:!0,writable:!0,value:e})}recompute(){if(this.disposed)return;const e=r.getInstance(),t=e.getCurrentComputation();if(e.setCurrentComputation(this),e.isInEffect())throw new s("Cannot create computed signal that depends on effects");try{for(const e of this.dependencies)if(e.isDisposed())throw this.signal.dispose(),new i("read from disposed dependency");const e=this.signal.computeFn();this.signal.equals(this.signal.i,e)||(this.signal.i=e,this.signal.notifyDependents())}catch(e){throw e instanceof i&&this.signal.dispose(),e}finally{t&&e.setCurrentComputation(t),this.dirty=!1}}}(this),this.computation.recompute()}get value(){if(this.disposed)throw new i("read from");const e=this.computation.dependencies;for(const t of e)if(t.isDisposed())throw this.dispose(),new i("read from disposed dependency");return this.computation.isDirty()&&this.computation.recompute(),this.trackDependency(),this.i}set value(e){throw Error("Cannot set the value of a computed signal")}getDepth(){return this.computation.getDepth()}dispose(){if(!this.disposed){super.dispose(),this.computation.dispose();for(const e of this.dependents)(e instanceof l||e.signal instanceof l)&&(e instanceof l?e:e.signal).dispose()}}}function b(e,t){return function(e,t){new c((()=>{}),t)}(0,"debug-"+t),e}class f{static trackUpdate(e){this.metrics.updates++,this.updateTimes.push(e),this.updateTimes.length>100&&this.updateTimes.shift(),this.metrics.averageUpdateTime=this.updateTimes.reduce(((e,t)=>e+t),0)/this.updateTimes.length}static trackComputation(e){this.metrics.computations++,this.metrics.maxChainDepth=Math.max(this.metrics.maxChainDepth,e)}static getMetrics(){return{...this.metrics}}static reset(){this.metrics={updates:0,computations:0,maxChainDepth:0,averageUpdateTime:0},this.updateTimes=[]}}function d(){r.instance=void 0,a.instance=void 0,f.reset()}Object.defineProperty(f,"metrics",{enumerable:!0,configurable:!0,writable:!0,value:{updates:0,computations:0,maxChainDepth:0,averageUpdateTime:0}}),Object.defineProperty(f,"updateTimes",{enumerable:!0,configurable:!0,writable:!0,value:[]});const p=e=>JSON.stringify({value:e.value,name:e.name,disposed:e.disposed});function m(e){return e instanceof u}function g(e){return e instanceof l?e.getDepth():0}function w(e){const t=new Set,i=new Set;return function e(s){if(i.has(s))return!0;if(t.has(s))return!1;t.add(s),i.add(s);const r=s.dependents||new Set;for(const t of r)if(t.computation?.signal&&e(t.computation.signal))return!0;return i.delete(s),!1}(e)}module.exports=t})();
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