From 00f361361d759c3fd4b182e92ee58f253e16ec5d Mon Sep 17 00:00:00 2001
From: Nicholas Berlette <nick@berlette.com>
Date: Wed, 19 Oct 2022 12:37:18 -0700
Subject: [PATCH] feat: add all.ts, _internal.ts, mod.d.ts

---
 _internal.ts   | 98 ++++++++++++++++++++++++++++++++++++++++++++++++++
 mod.d.ts       | 12 +++++++
 testing/all.ts |  6 ++++
 3 files changed, 116 insertions(+)
 create mode 100644 _internal.ts
 create mode 100644 mod.d.ts
 create mode 100644 testing/all.ts

diff --git a/_internal.ts b/_internal.ts
new file mode 100644
index 0000000..96e3092
--- /dev/null
+++ b/_internal.ts
@@ -0,0 +1,98 @@
+export {
+  filterEntries,
+  filterKeys,
+  isKeyOf,
+  isObject,
+  mapEntries,
+  mapKeys,
+  objectPick,
+  pick,
+} from "./deps.ts";
+
+export type Primitive = string | number | bigint | boolean | symbol;
+
+export type LiteralUnion<
+  Literal extends BaseType,
+  BaseType extends Primitive,
+> = Literal | (BaseType & Record<never, never>);
+
+export type JSONReplacerFn = (this: any, key: string, value: any) => any;
+
+export type JSONReplacerArray = (string | number)[];
+
+export type JSONReviverFn = (this: any, key: string, value: any) => any;
+
+export type JsonValue =
+  | { [key: string]: JsonValue | undefined }
+  | JsonValue[]
+  | string
+  | number
+  | boolean
+  | null;
+
+export type { JsonValue as JSONValue };
+
+export function objectMap<
+  Input extends Record<PropertyKey, unknown>,
+  CallbackFn extends (this: Input, value: V, key: K, array: [K, V][]) => V2,
+  K extends keyof Input,
+  V extends Input[K],
+  V2,
+>(obj: Input, callbackfn: CallbackFn) {
+  const entries = Object.entries(obj) as [K, V][];
+  const mappedEntries = entries.map(
+    ([k, v], _, a) => [k, callbackfn.bind(obj, v, k, a)],
+  );
+
+  return Object.fromEntries(mappedEntries) as (
+    CallbackFn extends ((v: infer Val, k: infer P, array: [K, V][]) => infer O)
+      ? [O] extends [Entry<infer OK, infer OV>] ? { [Key in P as OK]: OV }
+      : [O] extends [infer OV] ? { [Key in K]: OV }
+      : never
+      : never
+  );
+}
+
+export type Entry<K extends PropertyKey = string, V extends unknown = string> =
+  readonly [K, V];
+
+export type Merge<T, Deep = false> = T extends
+  infer U extends Record<string, unknown>
+  ? { [K in keyof U]: Deep extends true ? Merge<U[K], Deep> : U[K] }
+  : T;
+
+export type MergeTuples<A extends Tuple, B extends Tuple = []> = [...A, ...B];
+
+export type Tuple<T = unknown, ReadOnly = true> = ReadOnly extends true
+  ? readonly T[]
+  : T[];
+
+export type LastInTuple<T extends Tuple> = T extends
+  { readonly length: infer L extends number } ? [L] extends [0] ? undefined
+  : [unknown, ...T][L]
+  : never;
+
+export type FirstInTuple<T extends Tuple> = T extends
+  { readonly length: infer L extends number } ? [L] extends [0] ? undefined
+  : T[0]
+  : never;
+
+export type KeysOfUnion<T> = T extends T ? keyof T : never;
+
+export type Writable<T, Deep = false> = T extends Record<string, unknown> ? {
+    -readonly [K in keyof T]?: Deep extends true ? Writable<T[K], true> : T[K];
+  }
+  : T;
+
+export type Readonly<T, Deep = false> = T extends Record<string, unknown> ? {
+    readonly [K in keyof T]?: Deep extends true ? Readonly<T[K], Deep> : T[K];
+  }
+  : T;
+
+export type Optional<T, Deep = false> = T extends Record<string, unknown>
+  ? { [K in keyof T]?: Deep extends true ? Optional<T[K], Deep> : T[K] }
+  : T;
+
+export type Required<T, Deep = false> = T extends Record<string, unknown>
+  ? { [K in keyof T]-?: Deep extends true ? Required<T[K], Deep> : T[K] }
+  : T;
diff --git a/mod.d.ts b/mod.d.ts
new file mode 100644
index 0000000..9cbcac7
--- /dev/null
+++ b/mod.d.ts
@@ -0,0 +1,12 @@
+declare type JSONReplacerFn = (this: any, key: string, value: any) => any;
+
+declare type JSONReviverFn = (this: any, key: string, value: any) => any;
+declare type JSONReviverArray = (string | number)[];
+
+declare type JSONValue =
+  | { [key: string]: JSONValue }
+  | JSONValue[]
+  | string
+  | number
+  | boolean
+  | null;
diff --git a/testing/all.ts b/testing/all.ts
new file mode 100644
index 0000000..176c3df
--- /dev/null
+++ b/testing/all.ts
@@ -0,0 +1,6 @@
+import "./asserts.ts";
+import "./bdd.ts";
+import "./chai.ts";
+import "./fc.ts";
+import "./mock.ts";
+import "./snapshot.ts";