immer - npm Package Compare versions

Comparing version 10.0.4 to 10.1.0

dist/cjs/immer.cjs.development.js

@@ -174,29 +174,32 @@ "use strict";
     return Array.prototype.slice.call(base);
-  if (!strict && isPlainObject(base)) {
-    if (!getPrototypeOf(base)) {
-      const obj = /* @__PURE__ */ Object.create(null);
-      return Object.assign(obj, base);
+  const isPlain = isPlainObject(base);
+  if (strict === true || strict === "class_only" && !isPlain) {
+    const descriptors = Object.getOwnPropertyDescriptors(base);
+    delete descriptors[DRAFT_STATE];
+    let keys = Reflect.ownKeys(descriptors);
+    for (let i = 0; i < keys.length; i++) {
+      const key = keys[i];
+      const desc = descriptors[key];
+      if (desc.writable === false) {
+        desc.writable = true;
+        desc.configurable = true;
+      }
+      if (desc.get || desc.set)
+        descriptors[key] = {
+          configurable: true,
+          writable: true,
+          // could live with !!desc.set as well here...
+          enumerable: desc.enumerable,
+          value: base[key]
+        };
     }
-    return { ...base };
-  }
-  const descriptors = Object.getOwnPropertyDescriptors(base);
-  delete descriptors[DRAFT_STATE];
-  let keys = Reflect.ownKeys(descriptors);
-  for (let i = 0; i < keys.length; i++) {
-    const key = keys[i];
-    const desc = descriptors[key];
-    if (desc.writable === false) {
-      desc.writable = true;
-      desc.configurable = true;
+    return Object.create(getPrototypeOf(base), descriptors);
+  } else {
+    const proto = getPrototypeOf(base);
+    if (proto !== null && isPlain) {
+      return { ...base };
     }
-    if (desc.get || desc.set)
-      descriptors[key] = {
-        configurable: true,
-        writable: true,
-        // could live with !!desc.set as well here...
-        enumerable: desc.enumerable,
-        value: base[key]
-      };
+    const obj = Object.create(proto);
+    return Object.assign(obj, base);
   }
-  return Object.create(getPrototypeOf(base), descriptors);
 }
@@ -203,0 +206,0 @@ function freeze(obj, deep = false) {

dist/cjs/immer.cjs.production.js

@@ -1,2 +0,2 @@
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l(c){c.m&&h(3,JSON.stringify(T(c)))}Y("MapSet",{I:t,D:i})}var M=new J,Fe=M.produce,Ne=M.produceWithPatches.bind(M),ze=M.setAutoFreeze.bind(M),je=M.setUseStrictShallowCopy.bind(M),Ce=M.applyPatches.bind(M),Re=M.createDraft.bind(M),ve=M.finishDraft.bind(M);function ke(e){return e}function Ke(e){return e}0&&(module.exports={Immer,applyPatches,castDraft,castImmutable,createDraft,current,enableMapSet,enablePatches,finishDraft,freeze,immerable,isDraft,isDraftable,nothing,original,produce,produceWithPatches,setAutoFreeze,setUseStrictShallowCopy});
 //# sourceMappingURL=immer.cjs.production.js.map

dist/immer.d.ts

@@ -134,8 +134,9 @@ /**
 }
+type StrictMode = boolean | "class_only";
 declare class Immer implements ProducersFns {
     autoFreeze_: boolean;
-    useStrictShallowCopy_: boolean;
+    useStrictShallowCopy_: StrictMode;
     constructor(config?: {
         autoFreeze?: boolean;
-        useStrictShallowCopy?: boolean;
+        useStrictShallowCopy?: StrictMode;
     });
@@ -176,3 +177,3 @@ /**
      */
-    setUseStrictShallowCopy(value: boolean): void;
+    setUseStrictShallowCopy(value: StrictMode): void;
     applyPatches<T extends Objectish>(base: T, patches: Patch[]): T;
@@ -224,3 +225,3 @@ }
  */
-declare const setUseStrictShallowCopy: (value: boolean) => void;
+declare const setUseStrictShallowCopy: (value: StrictMode) => void;
 /**
@@ -260,2 +261,2 @@ * Apply an array of Immer patches to the first argument.
 
-export { Draft, Immer, Immutable, Objectish, Patch, PatchListener, applyPatches, castDraft, castImmutable, createDraft, current, enableMapSet, enablePatches, finishDraft, freeze, DRAFTABLE as immerable, isDraft, isDraftable, NOTHING as nothing, original, produce, produceWithPatches, setAutoFreeze, setUseStrictShallowCopy };
+export { Draft, Immer, Immutable, Objectish, Patch, PatchListener, StrictMode, applyPatches, castDraft, castImmutable, createDraft, current, enableMapSet, enablePatches, finishDraft, freeze, DRAFTABLE as immerable, isDraft, isDraftable, NOTHING as nothing, original, produce, produceWithPatches, setAutoFreeze, setUseStrictShallowCopy };

dist/immer.legacy-esm.js

@@ -148,29 +148,32 @@ var __defProp = Object.defineProperty;
     return Array.prototype.slice.call(base);
-  if (!strict && isPlainObject(base)) {
-    if (!getPrototypeOf(base)) {
-      const obj = /* @__PURE__ */ Object.create(null);
-      return Object.assign(obj, base);
+  const isPlain = isPlainObject(base);
+  if (strict === true || strict === "class_only" && !isPlain) {
+    const descriptors = Object.getOwnPropertyDescriptors(base);
+    delete descriptors[DRAFT_STATE];
+    let keys = Reflect.ownKeys(descriptors);
+    for (let i = 0; i < keys.length; i++) {
+      const key = keys[i];
+      const desc = descriptors[key];
+      if (desc.writable === false) {
+        desc.writable = true;
+        desc.configurable = true;
+      }
+      if (desc.get || desc.set)
+        descriptors[key] = {
+          configurable: true,
+          writable: true,
+          // could live with !!desc.set as well here...
+          enumerable: desc.enumerable,
+          value: base[key]
+        };
     }
-    return __spreadValues({}, base);
-  }
-  const descriptors = Object.getOwnPropertyDescriptors(base);
-  delete descriptors[DRAFT_STATE];
-  let keys = Reflect.ownKeys(descriptors);
-  for (let i = 0; i < keys.length; i++) {
-    const key = keys[i];
-    const desc = descriptors[key];
-    if (desc.writable === false) {
-      desc.writable = true;
-      desc.configurable = true;
+    return Object.create(getPrototypeOf(base), descriptors);
+  } else {
+    const proto = getPrototypeOf(base);
+    if (proto !== null && isPlain) {
+      return __spreadValues({}, base);
     }
-    if (desc.get || desc.set)
-      descriptors[key] = {
-        configurable: true,
-        writable: true,
-        // could live with !!desc.set as well here...
-        enumerable: desc.enumerable,
-        value: base[key]
-      };
+    const obj = Object.create(proto);
+    return Object.assign(obj, base);
   }
-  return Object.create(getPrototypeOf(base), descriptors);
 }
@@ -177,0 +180,0 @@ function freeze(obj, deep = false) {

package.json

 {
   "name": "immer",
-  "version": "10.0.4",
+  "version": "10.1.0",
   "description": "Create your next immutable state by mutating the current one",
@@ -8,2 +8,3 @@ "main": "./dist/cjs/index.js",
   "exports": {
+    "./package.json": "./package.json",
     ".": {
@@ -10,0 +11,0 @@ "types": "./dist/immer.d.ts",

src/core/immerClass.ts

@@ -34,7 +34,12 @@ import {
 
+export type StrictMode = boolean | "class_only";
+
 export class Immer implements ProducersFns {
 	autoFreeze_: boolean = true
-	useStrictShallowCopy_: boolean = false
+	useStrictShallowCopy_: StrictMode = false
 
-	constructor(config?: {autoFreeze?: boolean; useStrictShallowCopy?: boolean}) {
+	constructor(config?: {
+		autoFreeze?: boolean
+		useStrictShallowCopy?: StrictMode
+	}) {
 		if (typeof config?.autoFreeze === "boolean")
@@ -167,3 +172,3 @@ this.setAutoFreeze(config!.autoFreeze)
 	 */
-	setUseStrictShallowCopy(value: boolean) {
+	setUseStrictShallowCopy(value: StrictMode) {
 		this.useStrictShallowCopy_ = value
@@ -170,0 +175,0 @@ }

src/immer.ts

@@ -21,3 +21,4 @@ import {
 	freeze,
-	Objectish
+	Objectish,
+	StrictMode
 } from "./internal"
@@ -24,0 +25,0 @@

src/utils/common.ts

@@ -11,3 +11,4 @@ import {
 	ArchType,
-	die
+	die,
+	StrictMode
 } from "../internal"
@@ -144,3 +145,3 @@
 /*#__PURE__*/
-export function shallowCopy(base: any, strict: boolean) {
+export function shallowCopy(base: any, strict: StrictMode) {
 	if (isMap(base)) {
@@ -154,32 +155,37 @@ return new Map(base)
 
-	if (!strict && isPlainObject(base)) {
-		if (!getPrototypeOf(base)) {
-			const obj = Object.create(null)
-			return Object.assign(obj, base)
-		}
-		return {...base}
-	}
+	const isPlain = isPlainObject(base)
 
-	const descriptors = Object.getOwnPropertyDescriptors(base)
-	delete descriptors[DRAFT_STATE as any]
-	let keys = Reflect.ownKeys(descriptors)
-	for (let i = 0; i < keys.length; i++) {
-		const key: any = keys[i]
-		const desc = descriptors[key]
-		if (desc.writable === false) {
-			desc.writable = true
-			desc.configurable = true
+	if (strict === true || (strict === "class_only" && !isPlain)) {
+		// Perform a strict copy
+		const descriptors = Object.getOwnPropertyDescriptors(base)
+		delete descriptors[DRAFT_STATE as any]
+		let keys = Reflect.ownKeys(descriptors)
+		for (let i = 0; i < keys.length; i++) {
+			const key: any = keys[i]
+			const desc = descriptors[key]
+			if (desc.writable === false) {
+				desc.writable = true
+				desc.configurable = true
+			}
+			// like object.assign, we will read any _own_, get/set accessors. This helps in dealing
+			// with libraries that trap values, like mobx or vue
+			// unlike object.assign, non-enumerables will be copied as well
+			if (desc.get || desc.set)
+				descriptors[key] = {
+					configurable: true,
+					writable: true, // could live with !!desc.set as well here...
+					enumerable: desc.enumerable,
+					value: base[key]
+				}
 		}
-		// like object.assign, we will read any _own_, get/set accessors. This helps in dealing
-		// with libraries that trap values, like mobx or vue
-		// unlike object.assign, non-enumerables will be copied as well
-		if (desc.get || desc.set)
-			descriptors[key] = {
-				configurable: true,
-				writable: true, // could live with !!desc.set as well here...
-				enumerable: desc.enumerable,
-				value: base[key]
-			}
+		return Object.create(getPrototypeOf(base), descriptors)
+	} else {
+		// perform a sloppy copy
+		const proto = getPrototypeOf(base)
+		if (proto !== null && isPlain) {
+			return {...base} // assumption: better inner class optimization than the assign below
+		}
+		const obj = Object.create(proto)
+		return Object.assign(obj, base)
 	}
-	return Object.create(getPrototypeOf(base), descriptors)
 }
@@ -186,0 +192,0 @@

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Improved metrics

Total package byte prevSize

626900

increased by0.56%

Lines of code

6066

increased by0.35%

No dependency changes