immer - npm Package Compare versions

Comparing version 7.0.10 to 7.0.11

dist/types/types-external.d.ts

@@ -6,12 +6,20 @@ import { Nothing } from "../internal";
 /**
+ * If the lib "ES2105.collections" is not included in tsconfig.json,
+ * types like ReadonlyArray, WeakMap etc. fall back to `any` (specified nowhere)
+ * or `{}` (from the node types), in both cases entering an infite recursion in
+ * pattern matching type mappings
+ * This type can be used to cast these types to `void` in these cases.
+ */
+export declare type IfAvailable<T, Fallback = void> = true | false extends (T extends never ? true : false) ? Fallback : keyof T extends never ? Fallback : T;
+/**
  * These should also never be mapped but must be tested after regular Map and
  * Set
  */
-declare type WeakReferences = WeakMap<any, any> | WeakSet<any>;
+declare type WeakReferences = IfAvailable<WeakMap<any, any>> | IfAvailable<WeakSet<any>>;
 export declare type WritableDraft<T> = {
     -readonly [K in keyof T]: Draft<T[K]>;
 };
-export declare type Draft<T> = T extends AtomicObject ? T : T extends ReadonlyMap<infer K, infer V> ? Map<Draft<K>, Draft<V>> : T extends ReadonlySet<infer V> ? Set<Draft<V>> : T extends WeakReferences ? T : T extends object ? WritableDraft<T> : T;
+export declare type Draft<T> = T extends AtomicObject ? T : T extends IfAvailable<ReadonlyMap<infer K, infer V>> ? Map<Draft<K>, Draft<V>> : T extends IfAvailable<ReadonlySet<infer V>> ? Set<Draft<V>> : T extends WeakReferences ? T : T extends object ? WritableDraft<T> : T;
 /** Convert a mutable type into a readonly type */
-export declare type Immutable<T> = T extends AtomicObject ? T : T extends ReadonlyMap<infer K, infer V> ? ReadonlyMap<Immutable<K>, Immutable<V>> : T extends ReadonlySet<infer V> ? ReadonlySet<Immutable<V>> : T extends WeakReferences ? T : T extends object ? {
+export declare type Immutable<T> = T extends AtomicObject ? T : T extends IfAvailable<ReadonlyMap<infer K, infer V>> ? ReadonlyMap<Immutable<K>, Immutable<V>> : T extends IfAvailable<ReadonlySet<infer V>> ? ReadonlySet<Immutable<V>> : T extends WeakReferences ? T : T extends object ? {
     readonly [K in keyof T]: Immutable<T[K]>;
@@ -18,0 +26,0 @@ } : T;

package.json

 {
   "name": "immer",
-  "version": "7.0.10",
+  "version": "7.0.11",
   "description": "Create your next immutable state by mutating the current one",
@@ -5,0 +5,0 @@ "main": "dist/index.js",

src/types/types-external.ts

@@ -21,6 +21,23 @@ import {Nothing} from "../internal"
 /**
+ * If the lib "ES2105.collections" is not included in tsconfig.json,
+ * types like ReadonlyArray, WeakMap etc. fall back to `any` (specified nowhere)
+ * or `{}` (from the node types), in both cases entering an infite recursion in
+ * pattern matching type mappings
+ * This type can be used to cast these types to `void` in these cases.
+ */
+export type IfAvailable<T, Fallback = void> =
+	// fallback if any
+	true | false extends (T extends never
+	? true
+	: false)
+		? Fallback // fallback if empty type
+		: keyof T extends never
+		? Fallback // original type
+		: T
+
+/**
  * These should also never be mapped but must be tested after regular Map and
  * Set
  */
-type WeakReferences = WeakMap<any, any> | WeakSet<any>
+type WeakReferences = IfAvailable<WeakMap<any, any>> | IfAvailable<WeakSet<any>>
 
@@ -31,5 +48,5 @@ export type WritableDraft<T> = {-readonly [K in keyof T]: Draft<T[K]>}
 	? T
-	: T extends ReadonlyMap<infer K, infer V> // Map extends ReadonlyMap
+	: T extends IfAvailable<ReadonlyMap<infer K, infer V>> // Map extends ReadonlyMap
 	? Map<Draft<K>, Draft<V>>
-	: T extends ReadonlySet<infer V> // Set extends ReadonlySet
+	: T extends IfAvailable<ReadonlySet<infer V>> // Set extends ReadonlySet
 	? Set<Draft<V>>
@@ -45,5 +62,5 @@ : T extends WeakReferences
 	? T
-	: T extends ReadonlyMap<infer K, infer V> // Map extends ReadonlyMap
+	: T extends IfAvailable<ReadonlyMap<infer K, infer V>> // Map extends ReadonlyMap
 	? ReadonlyMap<Immutable<K>, Immutable<V>>
-	: T extends ReadonlySet<infer V> // Set extends ReadonlySet
+	: T extends IfAvailable<ReadonlySet<infer V>> // Set extends ReadonlySet
 	? ReadonlySet<Immutable<V>>
@@ -50,0 +67,0 @@ : T extends WeakReferences

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Found 1 instance in 1 package

Fixed alerts

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Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

821185

increased by0.19%

Lines of code

6432

increased by0.37%

No dependency changes