| 1 | const i=Symbol.for("preact-signals");function t(){if(r>1){r--;return}let i,t=!1;while(void 0!==s){let o=s;s=void 0;f++;while(void 0!==o){const n=o.o;o.o=void 0;o.f&=-3;if(!(8&o.f)&&v(o))try{o.c()}catch(o){if(!t){i=o;t=!0}}o=n}}f=0;r--;if(t)throw i}function o(i){if(r>0)return i();r++;try{return i()}finally{t()}}let n,s;function h(i){const t=n;n=void 0;try{return i()}finally{n=t}}let r=0,f=0,e=0;function c(i){if(void 0===n)return;let t=i.n;if(void 0===t||t.t!==n){t={i:0,S:i,p:n.s,n:void 0,t:n,e:void 0,x:void 0,r:t};if(void 0!==n.s)n.s.n=t;n.s=t;i.n=t;if(32&n.f)i.S(t);return t}else if(-1===t.i){t.i=0;if(void 0!==t.n){t.n.p=t.p;if(void 0!==t.p)t.p.n=t.n;t.p=n.s;t.n=void 0;n.s.n=t;n.s=t}return t}}function u(i){this.v=i;this.i=0;this.n=void 0;this.t=void 0}u.prototype.brand=i;u.prototype.h=function(){return!0};u.prototype.S=function(i){if(this.t!==i&&void 0===i.e){i.x=this.t;if(void 0!==this.t)this.t.e=i;this.t=i}};u.prototype.U=function(i){if(void 0!==this.t){const t=i.e,o=i.x;if(void 0!==t){t.x=o;i.e=void 0}if(void 0!==o){o.e=t;i.x=void 0}if(i===this.t)this.t=o}};u.prototype.subscribe=function(i){return E(()=>{const t=this.value,o=n;n=void 0;try{i(t)}finally{n=o}})};u.prototype.valueOf=function(){return this.value};u.prototype.toString=function(){return this.value+""};u.prototype.toJSON=function(){return this.value};u.prototype.peek=function(){const i=n;n=void 0;try{return this.value}finally{n=i}};Object.defineProperty(u.prototype,"value",{get(){const i=c(this);if(void 0!==i)i.i=this.i;return this.v},set(i){if(i!==this.v){if(f>100)throw new Error("Cycle detected");this.v=i;this.i++;e++;r++;try{for(let i=this.t;void 0!==i;i=i.x)i.t.N()}finally{t()}}}});function d(i){return new u(i)}function v(i){for(let t=i.s;void 0!==t;t=t.n)if(t.S.i!==t.i||!t.S.h()||t.S.i!==t.i)return!0;return!1}function l(i){for(let t=i.s;void 0!==t;t=t.n){const o=t.S.n;if(void 0!==o)t.r=o;t.S.n=t;t.i=-1;if(void 0===t.n){i.s=t;break}}}function y(i){let t,o=i.s;while(void 0!==o){const i=o.p;if(-1===o.i){o.S.U(o);if(void 0!==i)i.n=o.n;if(void 0!==o.n)o.n.p=i}else t=o;o.S.n=o.r;if(void 0!==o.r)o.r=void 0;o=i}i.s=t}function a(i){u.call(this,void 0);this.x=i;this.s=void 0;this.g=e-1;this.f=4}(a.prototype=new u).h=function(){this.f&=-3;if(1&this.f)return!1;if(32==(36&this.f))return!0;this.f&=-5;if(this.g===e)return!0;this.g=e;this.f|=1;if(this.i>0&&!v(this)){this.f&=-2;return!0}const i=n;try{l(this);n=this;const i=this.x();if(16&this.f||this.v!==i||0===this.i){this.v=i;this.f&=-17;this.i++}}catch(i){this.v=i;this.f|=16;this.i++}n=i;y(this);this.f&=-2;return!0};a.prototype.S=function(i){if(void 0===this.t){this.f|=36;for(let i=this.s;void 0!==i;i=i.n)i.S.S(i)}u.prototype.S.call(this,i)};a.prototype.U=function(i){if(void 0!==this.t){u.prototype.U.call(this,i);if(void 0===this.t){this.f&=-33;for(let i=this.s;void 0!==i;i=i.n)i.S.U(i)}}};a.prototype.N=function(){if(!(2&this.f)){this.f|=6;for(let i=this.t;void 0!==i;i=i.x)i.t.N()}};Object.defineProperty(a.prototype,"value",{get(){if(1&this.f)throw new Error("Cycle detected");const i=c(this);this.h();if(void 0!==i)i.i=this.i;if(16&this.f)throw this.v;return this.v}});function w(i){return new a(i)}function _(i){const o=i.u;i.u=void 0;if("function"==typeof o){r++;const s=n;n=void 0;try{o()}catch(t){i.f&=-2;i.f|=8;g(i);throw t}finally{n=s;t()}}}function g(i){for(let t=i.s;void 0!==t;t=t.n)t.S.U(t);i.x=void 0;i.s=void 0;_(i)}function p(i){if(n!==this)throw new Error("Out-of-order effect");y(this);n=i;this.f&=-2;if(8&this.f)g(this);t()}function b(i){this.x=i;this.u=void 0;this.s=void 0;this.o=void 0;this.f=32}b.prototype.c=function(){const i=this.S();try{if(8&this.f)return;if(void 0===this.x)return;const t=this.x();if("function"==typeof t)this.u=t}finally{i()}};b.prototype.S=function(){if(1&this.f)throw new Error("Cycle detected");this.f|=1;this.f&=-9;_(this);l(this);r++;const i=n;n=this;return p.bind(this,i)};b.prototype.N=function(){if(!(2&this.f)){this.f|=2;this.o=s;s=this}};b.prototype.d=function(){this.f|=8;if(!(1&this.f))g(this)};function E(i){const t=new b(i);try{t.c()}catch(i){t.d();throw i}return t.d.bind(t)}export{u as Signal,o as batch,w as computed,E as effect,d as signal,h as untracked};
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