Merge pull request #19 from graphemecluster/purne-check-non-nullable

Purne `CheckNonNullable`

Author: uhyo

docs/diff/es2015.core.d.ts.md

@@ -91,7 +91,8 @@ Index: es2015.core.d.ts
     * target object. Returns the target object.
     * @param target The target object to copy to.
 -   * @param source The source object from which to copy properties.
--   */
++   * @param sources One or more source objects from which to copy properties
+    */
 -  assign<T extends {}, U>(target: T, source: U): T & U;
 -
 -  /**
@@ -112,30 +113,29 @@ Index: es2015.core.d.ts
 -   * @param source3 The third source object from which to copy properties.
 -   */
 -  assign<T extends {}, U, V, W>(
--    target: T,
++  assign<T extends {}, Ts extends readonly any[]>(
+     target: T,
 -    source1: U,
 -    source2: V,
 -    source3: W
 -  ): T & U & V & W;
--
--  /**
--   * Copy the values of all of the enumerable own properties from one or more source objects to a
--   * target object. Returns the target object.
--   * @param target The target object to copy to.
-    * @param sources One or more source objects from which to copy properties
-    */
--  assign(target: object, ...sources: any[]): any;
-+  assign<T, Ts extends readonly any[]>(
-+    target: CheckNonNullable<T>,
 +    ...sources: Ts
 +  ): Intersect<[T, ...Ts]>;
 
    /**
+-   * Copy the values of all of the enumerable own properties from one or more source objects to a
+-   * target object. Returns the target object.
+-   * @param target The target object to copy to.
+-   * @param sources One or more source objects from which to copy properties
+-   */
+-  assign(target: object, ...sources: any[]): any;
+-
+-  /**
     * Returns an array of all symbol properties found directly on object o.
     * @param o Object to retrieve the symbols from.
     */
 -  getOwnPropertySymbols(o: any): symbol[];
-+  getOwnPropertySymbols<T>(o: CheckNonNullable<T>): symbol[];
++  getOwnPropertySymbols(o: {}): symbol[];
 
    /**
     * Returns the names of the enumerable string properties and methods of an object.

docs/diff/es2017.object.d.ts.md

@@ -5,7 +5,7 @@ Index: es2017.object.d.ts
 ===================================================================
 --- es2017.object.d.ts
 +++ es2017.object.d.ts
-@@ -2,34 +2,42 @@
+@@ -2,34 +2,44 @@
    /**
     * Returns an array of values of the enumerable properties of an object
     * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
@@ -23,7 +23,7 @@ Index: es2017.object.d.ts
 +   * Returns an array of values of the enumerable properties of an object
 +   * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
 +   */
-+  values<T>(o: CheckNonNullable<T>): unknown[];
++  values(o: {}): unknown[];
 
    /**
     * Returns an array of key/values of the enumerable properties of an object
@@ -42,17 +42,18 @@ Index: es2017.object.d.ts
 +   * Returns an array of key/values of the enumerable properties of an object
 +   * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
 +   */
-+  entries<T>(o: CheckNonNullable<T>): [string, unknown][];
++  entries(o: {}): [string, unknown][];
 
    /**
     * Returns an object containing all own property descriptors of an object
     * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
     */
 -  getOwnPropertyDescriptors<T>(
--    o: T
++  getOwnPropertyDescriptors<T extends {}>(
+     o: T
 -  ): { [P in keyof T]: TypedPropertyDescriptor<T[P]> } & {
 -    [x: string]: PropertyDescriptor;
-+  getOwnPropertyDescriptors<T>(o: CheckNonNullable<T>): {
++  ): {
 +    [P in keyof T]: TypedPropertyDescriptor<T[P]>;
 +  } & {
 +    [x: PropertyKey]: PropertyDescriptor;

docs/diff/es5.d.ts.md

@@ -64,18 +64,17 @@ Index: es5.d.ts
     * @param o The object that references the prototype.
     */
 -  getPrototypeOf(o: any): any;
-+  getPrototypeOf<T>(o: CheckNonNullable<T>): unknown;
++  getPrototypeOf(o: {}): unknown;
 
    /**
     * Gets the own property descriptor of the specified object.
     * An own property descriptor is one that is defined directly on the object and is not inherited from the object's prototype.
     * @param o Object that contains the property.
     * @param p Name of the property.
     */
--  getOwnPropertyDescriptor(
+   getOwnPropertyDescriptor(
 -    o: any,
-+  getOwnPropertyDescriptor<T>(
-+    o: CheckNonNullable<T>,
++    o: {},
      p: PropertyKey
    ): PropertyDescriptor | undefined;
 
@@ -85,7 +84,7 @@ Index: es5.d.ts
     * @param o Object that contains the own properties.
     */
 -  getOwnPropertyNames(o: any): string[];
-+  getOwnPropertyNames<T>(o: CheckNonNullable<T>): string[];
++  getOwnPropertyNames(o: {}): string[];
 
    /**
     * Creates an object that has the specified prototype or that has null prototype.
@@ -3557,7 +3556,7 @@ Index: es5.d.ts
  }
  declare var Float64Array: Float64ArrayConstructor;
 
-@@ -5536,4 +5418,31 @@
+@@ -5536,4 +5418,29 @@
      locales?: string | string[],
      options?: Intl.DateTimeFormatOptions
    ): string;
@@ -3578,8 +3577,6 @@ Index: es5.d.ts
 +  ? S
 +  : never;
 +
-+type CheckNonNullable<T> = [T] extends [null | undefined] ? never : T;
-+
 +type JSONValue =
 +  | null
 +  | string

generated/lib.es2015.core.d.ts

@@ -319,16 +319,16 @@ interface ObjectConstructor {
    * @param target The target object to copy to.
    * @param sources One or more source objects from which to copy properties
    */
-  assign<T, Ts extends readonly any[]>(
-    target: CheckNonNullable<T>,
+  assign<T extends {}, Ts extends readonly any[]>(
+    target: T,
     ...sources: Ts
   ): Intersect<[T, ...Ts]>;
 
   /**
    * Returns an array of all symbol properties found directly on object o.
    * @param o Object to retrieve the symbols from.
    */
-  getOwnPropertySymbols<T>(o: CheckNonNullable<T>): symbol[];
+  getOwnPropertySymbols(o: {}): symbol[];
 
   /**
    * Returns the names of the enumerable string properties and methods of an object.

generated/lib.es2017.object.d.ts

@@ -13,7 +13,7 @@ interface ObjectConstructor {
    * Returns an array of values of the enumerable properties of an object
    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
    */
-  values<T>(o: CheckNonNullable<T>): unknown[];
+  values(o: {}): unknown[];
 
   /**
    * Returns an array of key/values of the enumerable properties of an object
@@ -29,13 +29,15 @@ interface ObjectConstructor {
    * Returns an array of key/values of the enumerable properties of an object
    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
    */
-  entries<T>(o: CheckNonNullable<T>): [string, unknown][];
+  entries(o: {}): [string, unknown][];
 
   /**
    * Returns an object containing all own property descriptors of an object
    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
    */
-  getOwnPropertyDescriptors<T>(o: CheckNonNullable<T>): {
+  getOwnPropertyDescriptors<T extends {}>(
+    o: T
+  ): {
     [P in keyof T]: TypedPropertyDescriptor<T[P]>;
   } & {
     [x: PropertyKey]: PropertyDescriptor;

generated/lib.es5.d.ts

@@ -168,16 +168,16 @@ interface ObjectConstructor {
    * Returns the prototype of an object.
    * @param o The object that references the prototype.
    */
-  getPrototypeOf<T>(o: CheckNonNullable<T>): unknown;
+  getPrototypeOf(o: {}): unknown;
 
   /**
    * Gets the own property descriptor of the specified object.
    * An own property descriptor is one that is defined directly on the object and is not inherited from the object's prototype.
    * @param o Object that contains the property.
    * @param p Name of the property.
    */
-  getOwnPropertyDescriptor<T>(
-    o: CheckNonNullable<T>,
+  getOwnPropertyDescriptor(
+    o: {},
     p: PropertyKey
   ): PropertyDescriptor | undefined;
 
@@ -186,7 +186,7 @@ interface ObjectConstructor {
    * on that object, and are not inherited from the object's prototype. The properties of an object include both fields (objects) and functions.
    * @param o Object that contains the own properties.
    */
-  getOwnPropertyNames<T>(o: CheckNonNullable<T>): string[];
+  getOwnPropertyNames(o: {}): string[];
 
   /**
    * Creates an object that has the specified prototype or that has null prototype.
@@ -6810,8 +6810,6 @@ type Intersect<T extends readonly any[]> = ((
   ? S
   : never;
 
-type CheckNonNullable<T> = [T] extends [null | undefined] ? never : T;
-
 type JSONValue =
   | null
   | string

lib/lib.es2015.core.d.ts

@@ -69,16 +69,16 @@ interface ObjectConstructor {
    * @param target The target object to copy to.
    * @param sources One or more source objects from which to copy properties
    */
-  assign<T, Ts extends readonly any[]>(
-    target: CheckNonNullable<T>,
+  assign<T extends {}, Ts extends readonly any[]>(
+    target: T,
     ...sources: Ts
   ): Intersect<[T, ...Ts]>;
 
   /**
    * Returns an array of all symbol properties found directly on object o.
    * @param o Object to retrieve the symbols from.
    */
-  getOwnPropertySymbols<T>(o: CheckNonNullable<T>): symbol[];
+  getOwnPropertySymbols(o: {}): symbol[];
 
   /**
    * Returns true if the values are the same value, false otherwise.

lib/lib.es2017.object.d.ts

@@ -13,7 +13,7 @@ interface ObjectConstructor {
    * Returns an array of values of the enumerable properties of an object
    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
    */
-  values<T>(o: CheckNonNullable<T>): unknown[];
+  values(o: {}): unknown[];
 
   /**
    * Returns an array of key/values of the enumerable properties of an object
@@ -29,13 +29,15 @@ interface ObjectConstructor {
    * Returns an array of key/values of the enumerable properties of an object
    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
    */
-  entries<T>(o: CheckNonNullable<T>): [string, unknown][];
+  entries(o: {}): [string, unknown][];
 
   /**
    * Returns an object containing all own property descriptors of an object
    * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
    */
-  getOwnPropertyDescriptors<T>(o: CheckNonNullable<T>): {
+  getOwnPropertyDescriptors<T extends {}>(
+    o: T
+  ): {
     [P in keyof T]: TypedPropertyDescriptor<T[P]>;
   } & {
     [x: PropertyKey]: PropertyDescriptor;

lib/lib.es5.d.ts

@@ -13,8 +13,6 @@ type Intersect<T extends readonly any[]> = ((
   ? S
   : never;
 
-type CheckNonNullable<T> = [T] extends [null | undefined] ? never : T;
-
 /**
  * Evaluates JavaScript code and executes it.
  * @param x A String value that contains valid JavaScript code.
@@ -49,16 +47,16 @@ interface ObjectConstructor {
    * Returns the prototype of an object.
    * @param o The object that references the prototype.
    */
-  getPrototypeOf<T>(o: CheckNonNullable<T>): unknown;
+  getPrototypeOf(o: {}): unknown;
 
   /**
    * Gets the own property descriptor of the specified object.
    * An own property descriptor is one that is defined directly on the object and is not inherited from the object's prototype.
    * @param o Object that contains the property.
    * @param p Name of the property.
    */
-  getOwnPropertyDescriptor<T>(
-    o: CheckNonNullable<T>,
+  getOwnPropertyDescriptor(
+    o: {},
     p: PropertyKey
   ): PropertyDescriptor | undefined;
 
@@ -67,7 +65,7 @@ interface ObjectConstructor {
    * on that object, and are not inherited from the object's prototype. The properties of an object include both fields (objects) and functions.
    * @param o Object that contains the own properties.
    */
-  getOwnPropertyNames<T>(o: CheckNonNullable<T>): string[];
+  getOwnPropertyNames(o: {}): string[];
 
   /**
    * Creates an object that has the specified prototype or that has null prototype.