{
  "version": 3,
  "sources": ["../../../src/lib/react/useValue.ts"],
  "sourcesContent": ["/* eslint-disable prefer-rest-params */\nimport { useMemo, useRef, useSyncExternalStore } from 'react'\nimport { Signal, computed, react } from '../core'\n\n/**\n * Extracts the value from a signal and subscribes to it.\n *\n * Note that you do not need to use this hook if you are wrapping the component with [[track]]\n *\n * @example\n * ```ts\n * const Counter: React.FC = () => {\n *   const $count = useAtom('count', 0)\n *   const increment = useCallback(() => $count.set($count.get() + 1), [count])\n *   const currentCount = useValue($count)\n *   return <button onClick={increment}>{currentCount}</button>\n * }\n * ```\n *\n * You can also pass a function to compute the value and it will be memoized as in [[useComputed]]:\n *\n * @example\n * ```ts\n * type GreeterProps = {\n *   firstName: Signal<string>\n *   lastName: Signal<string>\n * }\n *\n * const Greeter = track(function Greeter({ firstName, lastName }: GreeterProps) {\n *   const fullName = useValue('fullName', () => `${firstName.get()} ${lastName.get()}`, [\n *     firstName,\n *     lastName,\n *   ])\n *   return <div>Hello {fullName}!</div>\n * })\n * ```\n *\n * @public\n */\nexport function useValue<Value>(value: Signal<Value>): Value\n/** @public */\nexport function useValue<Value>(name: string, fn: () => Value, deps: unknown[]): Value\n/** @public */\nexport function useValue() {\n\tconst args = arguments\n\t// deps will be either the computed or the deps array\n\tconst deps = args.length === 3 ? args[2] : [args[0]]\n\tconst name = args.length === 3 ? args[0] : `useValue(${args[0].name})`\n\n\tconst isInRender = useRef(true)\n\tisInRender.current = true\n\n\tconst $val = useMemo(() => {\n\t\tif (args.length === 1) {\n\t\t\treturn args[0]\n\t\t}\n\t\treturn computed(name, () => {\n\t\t\tif (isInRender.current) {\n\t\t\t\treturn args[1]()\n\t\t\t} else {\n\t\t\t\ttry {\n\t\t\t\t\treturn args[1]()\n\t\t\t\t} catch {\n\t\t\t\t\t// when getSnapshot is called outside of the render phase &\n\t\t\t\t\t// subsequently throws an error, it might be because we're\n\t\t\t\t\t// in a zombie-child state. in that case, we suppress the\n\t\t\t\t\t// error and instead return a new dummy value to trigger a\n\t\t\t\t\t// react re-render. if we were in a zombie child, react will\n\t\t\t\t\t// unmount us instead of re-rendering so the error is\n\t\t\t\t\t// irrelevant. if we're not in a zombie-child, react will\n\t\t\t\t\t// call `getSnapshot` again in the render phase, and the\n\t\t\t\t\t// error will be thrown as expected.\u00E5\n\t\t\t\t\treturn {}\n\t\t\t\t}\n\t\t\t}\n\t\t})\n\t\t// eslint-disable-next-line react-hooks/exhaustive-deps\n\t}, deps)\n\n\ttry {\n\t\tconst { subscribe, getSnapshot } = useMemo(() => {\n\t\t\treturn {\n\t\t\t\tsubscribe: (listen: () => void) => {\n\t\t\t\t\treturn react(`useValue(${name})`, () => {\n\t\t\t\t\t\t$val.get()\n\t\t\t\t\t\tlisten()\n\t\t\t\t\t})\n\t\t\t\t},\n\t\t\t\tgetSnapshot: () => $val.get(),\n\t\t\t}\n\t\t\t// eslint-disable-next-line react-hooks/exhaustive-deps\n\t\t}, [$val])\n\n\t\treturn useSyncExternalStore(subscribe, getSnapshot, getSnapshot)\n\t} finally {\n\t\tisInRender.current = false\n\t}\n}\n"],
  "mappings": "AACA,SAAS,SAAS,QAAQ,4BAA4B;AACtD,SAAiB,UAAU,aAAa;AAyCjC,SAAS,WAAW;AAC1B,QAAM,OAAO;AAEb,QAAM,OAAO,KAAK,WAAW,IAAI,KAAK,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;AACnD,QAAM,OAAO,KAAK,WAAW,IAAI,KAAK,CAAC,IAAI,YAAY,KAAK,CAAC,EAAE,IAAI;AAEnE,QAAM,aAAa,OAAO,IAAI;AAC9B,aAAW,UAAU;AAErB,QAAM,OAAO,QAAQ,MAAM;AAC1B,QAAI,KAAK,WAAW,GAAG;AACtB,aAAO,KAAK,CAAC;AAAA,IACd;AACA,WAAO,SAAS,MAAM,MAAM;AAC3B,UAAI,WAAW,SAAS;AACvB,eAAO,KAAK,CAAC,EAAE;AAAA,MAChB,OAAO;AACN,YAAI;AACH,iBAAO,KAAK,CAAC,EAAE;AAAA,QAChB,QAAQ;AAUP,iBAAO,CAAC;AAAA,QACT;AAAA,MACD;AAAA,IACD,CAAC;AAAA,EAEF,GAAG,IAAI;AAEP,MAAI;AACH,UAAM,EAAE,WAAW,YAAY,IAAI,QAAQ,MAAM;AAChD,aAAO;AAAA,QACN,WAAW,CAAC,WAAuB;AAClC,iBAAO,MAAM,YAAY,IAAI,KAAK,MAAM;AACvC,iBAAK,IAAI;AACT,mBAAO;AAAA,UACR,CAAC;AAAA,QACF;AAAA,QACA,aAAa,MAAM,KAAK,IAAI;AAAA,MAC7B;AAAA,IAED,GAAG,CAAC,IAAI,CAAC;AAET,WAAO,qBAAqB,WAAW,aAAa,WAAW;AAAA,EAChE,UAAE;AACD,eAAW,UAAU;AAAA,EACtB;AACD;",
  "names": []
}