chore: consolidate lib/prototypes/ into lib/prototypes.mjs

This avoids creating another index file

lib/prototypes/README.md → lib/PROTOTYPES.md

@@ -1,6 +1,6 @@
 # Prototypes
 
-The functions in this folder are to be use for keeping cached references to the built-in prototypes, so that people can't inadvertently break the library by making mistakes in userland.
+The functions in this module are to be used for keeping cached references to the built-in prototypes, so that people can't inadvertently break the library by making mistakes in userland.
 
 See https://github.com/sinonjs/sinon/pull/1523
 

lib/called-in-order.mjs

@@ -1,5 +1,5 @@
-import array from "./prototypes/array.mjs";
-const every = array.every;
+import prototypes from "./prototypes.mjs";
+const every = prototypes.array.every;
 
 /**
  * @private

lib/index.mjs

@@ -5,7 +5,7 @@ import * as deprecated from "./deprecated.js";
 import every from "./every.mjs";
 import functionName from "./function-name.mjs";
 import orderByFirstCall from "./order-by-first-call.mjs";
-import prototypes from "./prototypes/index.mjs";
+import prototypes from "./prototypes.mjs";
 import typeOf from "./type-of.mjs";
 import valueToString from "./value-to-string.mjs";
 

lib/order-by-first-call.mjs

@@ -1,5 +1,5 @@
-import pkg from "./prototypes/array.mjs";
-const { slice, sort } = pkg;
+import prototypes from "./prototypes.mjs";
+const { slice, sort } = prototypes.array;
 
 /**
  * @private

lib/prototypes.mjs

@@ -0,0 +1,10 @@
+import copyPrototypeMethods from "./copy-prototype-methods.mjs";
+
+export default {
+    array: copyPrototypeMethods(Array.prototype),
+    function: copyPrototypeMethods(Function.prototype),
+    map: copyPrototypeMethods(Map.prototype),
+    object: copyPrototypeMethods(Object.prototype),
+    set: copyPrototypeMethods(Set.prototype),
+    string: copyPrototypeMethods(String.prototype),
+}

lib/prototypes/index.test.mjs → lib/prototypes.test.mjs

@@ -1,15 +1,16 @@
 import pkg from "@sinonjs/referee-sinon";
-const { assert } = pkg;
+const { assert, refute } = pkg;
 
-import throwsOnProto from "../throws-on-proto.mjs";
+import copyPrototypeMethods from "./copy-prototype-methods.mjs";
+import throwsOnProto from "./throws-on-proto.mjs";
+import prototypes from "./prototypes.mjs";
 
-import prototypes from "./index.mjs";
-var arrayProto = prototypes.array;
-var functionProto = prototypes.function;
-var mapProto = prototypes.map;
-var objectProto = prototypes.object;
-var setProto = prototypes.set;
-var stringProto = prototypes.string;
+const arrayProto = prototypes.array;
+const functionProto = prototypes.function;
+const mapProto = prototypes.map;
+const objectProto = prototypes.object;
+const setProto = prototypes.set;
+const stringProto = prototypes.string;
 
 describe("prototypes", function () {
     describe(".array", function () {
@@ -36,6 +37,14 @@ describe("prototypes", function () {
         // eslint-disable-next-line mocha/no-setup-in-describe
         verifyProperties(stringProto, String);
     });
+
+    describe("copyPrototypeMethods", function () {
+        it("does not throw for Map", function () {
+            refute.exception(function () {
+                copyPrototypeMethods(Map.prototype);
+            });
+        });
+    });
 });
 
 function verifyProperties(p, origin) {