immer
Version:
Create your next immutable state by mutating the current one
3 lines (2 loc) • 19 kB
JavaScript
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draft")}},I={};function N(e,t){var r=e[u],n=Reflect.getOwnPropertyDescriptor(r?j(r):e,t);return n&&n.value}function R(e){if(!e.modified){if(e.modified=!0,e.type===n.ProxyObject||e.type===n.ProxyArray){var t=e.copy=E(e.base);v(e.drafts,function(e,r){t[e]=r}),e.drafts=void 0}e.parent&&R(e.parent)}}function W(e){e.copy||(e.copy=E(e.base))}function U(e,t,r){e.drafts.forEach(function(e){e[u].finalizing=!0}),r?h(t)&&t[u].scope===e&&B(e.drafts):(e.patches&&function e(t){if(!t||"object"!=typeof t)return;var r=t[u];if(!r)return;var o=r.base,a=r.draft,i=r.assigned,c=r.type;if(c===n.ES5Object)v(a,function(t){t!==u&&(void 0!==o[t]||m(o,t)?i[t]||e(a[t]):(i[t]=!0,L(r)))}),v(o,function(e){void 0!==a[e]||m(a,e)||(i[e]=!1,L(r))});else if(c===n.ES5Array&&H(r)){if(L(r),i.length=!0,a.length<o.length)for(var s=a.length;s<o.length;s++)i[s]=!1;else for(var s=o.length;s<a.length;s++)i[s]=!0;for(var s=0;s<a.length;s++)void 0===i[s]&&e(a[s])}}(e.drafts[0]),B(e.drafts))}function K(e,t){var r=Array.isArray(e),o=J(e);v(o,function(t){!function(e,t,r){var n=V[t];n?n.enumerable=r:V[t]=n={configurable:!0,enumerable:r,get:function(){return function(e,t){q(e);var r=T(j(e),t);if(e.finalizing)return r;if(r===T(e.base,t)&&l(r))return $(e),e.copy[t]=e.scope.immer.createProxy(r,e);return r}(this[u],t)},set:function(e){!function(e,t,r){if(q(e),e.assigned[t]=!0,!e.modified){if(P(r,T(j(e),t)))return;L(e),$(e)}e.copy[t]=r}(this[u],t,e)}};Object.defineProperty(e,t,n)}(o,t,r||function(e,t){var r=Object.getOwnPropertyDescriptor(e,t);return!(!r||!r.enumerable)}(e,t))});var a,i,c,s={type:r?n.ES5Array:n.ES5Object,scope:t?t.scope:z.current,modified:!1,finalizing:!1,finalized:!1,assigned:{},parent:t,base:e,draft:o,copy:null,revoked:!1,isManual:!1};return a=o,i=u,c=s,Object.defineProperty(a,i,{value:c,enumerable:!1,writable:!0}),o}function T(e,t){var r=e[u];if(r&&!r.finalizing){r.finalizing=!0;var n=e[t];return r.finalizing=!1,n}return e[t]}function 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q(r),j(r).get(e)!==t&&(X(r),r.scope.immer.markChanged(r),r.assigned.set(e,!0),r.copy.set(e,t),r.assigned.set(e,!0)),this},r.delete=function(e){if(!this.has(e))return!1;var t=this[u];return q(t),X(t),t.scope.immer.markChanged(t),t.assigned.set(e,!1),t.copy.delete(e),!0},r.clear=function(){var e=this[u];return q(e),X(e),e.scope.immer.markChanged(e),e.assigned=new Map,e.copy.clear()},r.forEach=function(e,t){var r=this;j(this[u]).forEach(function(n,o,a){e.call(t,r.get(o),o,r)})},r.get=function(e){var t=this[u];q(t);var r=j(t).get(e);if(t.finalized||!l(r))return r;if(r!==t.base.get(e))return r;var n=t.scope.immer.createProxy(r,t);return X(t),t.copy.set(e,n),n},r.keys=function(){return j(this[u]).keys()},r.values=function(){var e,t=this,r=this.keys();return(e={})[f]=function(){return t.values()},e.next=function(){var e=r.next();return e.done?e:{done:!1,value:t.get(e.value)}},e},r.entries=function(){var e,t=this,r=this.keys();return(e={})[f]=function(){return t.entries()},e.next=function(){var e=r.next();if(e.done)return e;var n=t.get(e.value);return{done:!1,value:[e.value,n]}},e},r[f]=function(){return this.entries()},t}(Map);function X(e){e.copy||(e.assigned=new Map,e.copy=new Map(e.base))}var Y=function(e){if(!e)throw new Error("Set is not polyfilled");function t(e,t){return this[u]={type:n.Set,parent:t,scope:t?t.scope:z.current,modified:!1,finalized:!1,copy:void 0,base:e,draft:this,drafts:new Map,revoked:!1,isManual:!1},this}d(t,e);var r=t.prototype;return Object.defineProperty(r,"size",{get:function(){return j(this[u]).size},enumerable:!0,configurable:!0}),r.has=function(e){var t=this[u];return q(t),t.copy?!!t.copy.has(e)||!(!t.drafts.has(e)||!t.copy.has(t.drafts.get(e))):t.base.has(e)},r.add=function(e){var t=this[u];return q(t),t.copy?t.copy.add(e):t.base.has(e)||(Z(t),t.scope.immer.markChanged(t),t.copy.add(e)),this},r.delete=function(e){if(!this.has(e))return!1;var t=this[u];return q(t),Z(t),t.scope.immer.markChanged(t),t.copy.delete(e)||!!t.drafts.has(e)&&t.copy.delete(t.drafts.get(e))},r.clear=function(){var e=this[u];return q(e),Z(e),e.scope.immer.markChanged(e),e.copy.clear()},r.values=function(){var e=this[u];return q(e),Z(e),e.copy.values()},r.entries=function(){var e=this[u];return q(e),Z(e),e.copy.entries()},r.keys=function(){return this.values()},r[f]=function(){return this.values()},r.forEach=function(e,t){for(var r=this.values(),n=r.next();!n.done;)e.call(t,n.value,n.value,this),n=r.next()},t}(Set);function Z(e){e.copy||(e.copy=new Set,e.base.forEach(function(t){if(l(t)){var r=e.scope.immer.createProxy(t,e);e.drafts.set(t,r),e.copy.add(r)}else e.copy.add(t)}))}function ee(e,t){return t.forEach(function(t){var n=t.path,o=t.op;n.length||S();for(var a=e,i=0;i<n.length-1;i++)if(!(a=g(a,n[i]))||"object"!=typeof a)throw new Error("Cannot apply patch, path doesn't resolve: "+n.join("/"));var c=b(a),s=te(t.value),u=n[n.length-1];switch(o){case"replace":switch(c){case r.Map:return a.set(u,s);case r.Set:throw new Error('Sets cannot have "replace" patches.');default:return a[u]=s}case"add":switch(c){case r.Array:return a.splice(u,0,s);case r.Map:return a.set(u,s);case r.Set:return a.add(s);default:return a[u]=s}case"remove":switch(c){case r.Array:return a.splice(u,1);case r.Map:return a.delete(u);case r.Set:return a.delete(t.value);default:return delete a[u]}default:throw new Error("Unsupported patch operation: "+o)}}),e}function te(e){if(!e||"object"!=typeof e)return e;if(Array.isArray(e))return e.map(te);if(w(e))return new Map(Array.from(e.entries()).map(function(e){return[e[0],te(e[1])]}));var t=Object.create(Object.getPrototypeOf(e));for(var r in e)t[r]=te(e[r]);return t}function re(){for(var e=0,t=0,r=arguments.length;t<r;t++)e+=arguments[t].length;var n=Array(e),o=0;for(t=0;t<r;t++)for(var a=arguments[t],i=0,c=a.length;i<c;i++,o++)n[o]=a[i];return n}var ne={useProxies:"undefined"!=typeof Proxy&&void 0!==Proxy.revocable&&"undefined"!=typeof Reflect,autoFreeze:"undefined"!=typeof process?"production"!==process.env.NODE_ENV:"verifyMinified"===function(){}.name,onAssign:null,onDelete:null,onCopy:null},oe=function(){function e(e){var t=this;this.useProxies=!1,this.autoFreeze=!1,v(ne,function(r,n){var o,a;t[r]=null!=(a=null===(o=e)||void 0===o?void 0:o[r])?a:n}),this.setUseProxies(this.useProxies),this.produce=this.produce.bind(this),this.produceWithPatches=this.produceWithPatches.bind(this)}return e.prototype.produce=function(e,t,r){var n,o=this;if("function"==typeof e&&"function"!=typeof t){var a=t;t=e;var i=this;return function(e){var r=arguments,n=this;void 0===e&&(e=a);for(var o=[],c=1;c<arguments.length;c++)o[c-1]=r[c];return i.produce(e,function(e){return t.call.apply(t,re([n,e],o))})}}if("function"!=typeof t)throw new Error("The first or second argument to `produce` must be a function");if(void 0!==r&&"function"!=typeof r)throw new Error("The third argument to `produce` must be a function or undefined");if(l(e)){var s=z.enter(this),u=this.createProxy(e,void 0),f=!0;try{n=t(u),f=!1}finally{f?s.revoke():s.leave()}return"undefined"!=typeof Promise&&n instanceof Promise?n.then(function(e){return s.usePatches(r),M(o,e,s)},function(e){throw s.revoke(),e}):(s.usePatches(r),M(this,n,s))}if((n=t(e))!==c)return void 0===n&&(n=e),_(this,n,!0),n},e.prototype.produceWithPatches=function(e,t,r){var n,o,a=this;return"function"==typeof e?function(t){for(var r=arguments,n=[],o=1;o<arguments.length;o++)n[o-1]=r[o];return a.produceWithPatches(t,function(t){return e.apply(void 0,re([t],n))})}:(r&&S(),[this.produce(e,t,function(e,t){n=e,o=t}),n,o])},e.prototype.createDraft=function(e){if(!l(e))throw new Error("First argument to `createDraft` must be a plain object, an array, or an immerable object");var t=z.enter(this),r=this.createProxy(e,void 0);return r[u].isManual=!0,t.leave(),r},e.prototype.finishDraft=function(e,t){var r=e&&e[u];if(!r||!r.isManual)throw new Error("First argument to `finishDraft` must be a draft returned by `createDraft`");if(r.finalized)throw new Error("The given draft is already finalized");var n=r.scope;return n.usePatches(t),M(this,void 0,n)},e.prototype.setAutoFreeze=function(e){this.autoFreeze=e},e.prototype.setUseProxies=function(e){this.useProxies=e},e.prototype.applyPatches=function(e,t){var r;for(r=t.length-1;r>=0;r--){var n=t[r];if(0===n.path.length&&"replace"===n.op){e=n.value;break}}return h(e)?ee(e,t):this.produce(e,function(e){return ee(e,t.slice(r+1))})},e.prototype.createProxy=function(e,t){var r=w(e)?function(e,t){return new Q(e,t)}(e,t):O(e)?function(e,t){return new Y(e,t)}(e,t):this.useProxies?function(e,t){var r=Array.isArray(e),o={type:r?n.ProxyArray:n.ProxyObject,scope:t?t.scope:z.current,modified:!1,finalized:!1,assigned:{},parent:t,base:e,draft:null,drafts:{},copy:null,revoke:null,isManual:!1},a=o,i=C;r&&(a=[o],i=I);var c=Proxy.revocable(a,i),s=c.revoke,u=c.proxy;return o.draft=u,o.revoke=s,u}(e,t):K(e,t);return(t?t.scope:z.current).drafts.push(r),r},e.prototype.willFinalize=function(e,t,r){this.useProxies||U(e,t,r)},e.prototype.markChanged=function(e){this.useProxies?R(e):L(e)},e}(),ae=new oe,ie=ae.produce,ce=ae.produceWithPatches.bind(ae),se=ae.setAutoFreeze.bind(ae),ue=ae.setUseProxies.bind(ae),fe=ae.applyPatches.bind(ae),pe=ae.createDraft.bind(ae),de=ae.finishDraft.bind(ae);e.Immer=oe,e.applyPatches=fe,e.castDraft=function(e){return e},e.castImmutable=function(e){return e},e.createDraft=pe,e.default=ie,e.finishDraft=de,e.immerable=s,e.isDraft=h,e.isDraftable=l,e.nothing=c,e.original=function(e){if(e&&e[u])return e[u].base},e.produce=ie,e.produceWithPatches=ce,e.setAutoFreeze=se,e.setUseProxies=ue,Object.defineProperty(e,"__esModule",{value:!0})});
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