feat: create entriesFromObjects utils

library/CHANGELOG.md

@@ -13,6 +13,7 @@ All notable changes to the library will be documented in this file.
 - Add `gtValue` and `ltValue` action for greater than and less than validation (pull request #978, #985)
 - Add `values` and `notValues` action to validate values (pull request #919)
 - Add `slug` action to validate URL slugs (pull request #910)
+- Add `entriesFromObjects` util to improve tree shaking (issue #1023)
 - Add new overload signature to `pipe` and `pipeAync` method to support unlimited pipe items of same input and output type (issue #852)
 - Add `@__NO_SIDE_EFFECTS__` notation to improve tree shaking (pull request #995)
 - Add `exactOptional` and `exactOptionalAsync` schema (PR #1013)

library/src/utils/entriesFromObjects/entriesFromObjects.test-d.ts

@@ -0,0 +1,63 @@
+import { describe, expectTypeOf, test } from 'vitest';
+import {
+  boolean,
+  type BooleanSchema,
+  number,
+  type NumberSchema,
+  object,
+  objectAsync,
+  string,
+  type StringSchema,
+} from '../../schemas/index.ts';
+import { entriesFromObjects } from './entriesFromObjects.ts';
+
+describe('entriesFromObjects', () => {
+  describe('should return objects entries', () => {
+    const schema1 = object({ foo: string(), bar: string() });
+    const schema2 = objectAsync({ baz: number(), qux: number() });
+    const schema3 = object({ foo: boolean(), baz: boolean() });
+
+    test('for missing schema', () => {
+      expectTypeOf(
+        // @ts-expect-error
+        entriesFromObjects([])
+      ).toEqualTypeOf<never>();
+    });
+
+    test('for single schema', () => {
+      expectTypeOf(entriesFromObjects([schema1])).toEqualTypeOf<{
+        readonly foo: StringSchema<undefined>;
+        readonly bar: StringSchema<undefined>;
+      }>();
+    });
+
+    test('for multiple schemes', () => {
+      expectTypeOf(entriesFromObjects([schema1, schema2])).toEqualTypeOf<{
+        readonly foo: StringSchema<undefined>;
+        readonly bar: StringSchema<undefined>;
+        readonly baz: NumberSchema<undefined>;
+        readonly qux: NumberSchema<undefined>;
+      }>();
+    });
+
+    test('with overwrites', () => {
+      expectTypeOf(
+        entriesFromObjects([schema1, schema2, schema3])
+      ).toEqualTypeOf<{
+        readonly bar: StringSchema<undefined>;
+        readonly qux: NumberSchema<undefined>;
+        readonly foo: BooleanSchema<undefined>;
+        readonly baz: BooleanSchema<undefined>;
+      }>();
+    });
+
+    test('for empty entries', () => {
+      // eslint-disable-next-line @typescript-eslint/no-empty-object-type
+      expectTypeOf(entriesFromObjects([object({})])).toEqualTypeOf<{}>();
+      expectTypeOf(
+        entriesFromObjects([object({}), objectAsync({})])
+        // eslint-disable-next-line @typescript-eslint/no-empty-object-type
+      ).toEqualTypeOf<{}>();
+    });
+  });
+});

library/src/utils/entriesFromObjects/entriesFromObjects.test.ts

@@ -0,0 +1,50 @@
+import { describe, expect, test } from 'vitest';
+import {
+  boolean,
+  number,
+  object,
+  objectAsync,
+  string,
+} from '../../schemas/index.ts';
+import { entriesFromObjects } from './entriesFromObjects.ts';
+
+describe('entriesFromObjects', () => {
+  describe('should return objects entries', () => {
+    const schema1 = object({ foo: string(), bar: string() });
+    const schema2 = objectAsync({ baz: number(), qux: number() });
+    const schema3 = object({ foo: boolean(), baz: boolean() });
+
+    test('for missing schema', () => {
+      expect(
+        // @ts-expect-error
+        entriesFromObjects([])
+      ).toStrictEqual({});
+    });
+
+    test('for single schema', () => {
+      expect(entriesFromObjects([schema1])).toStrictEqual(schema1.entries);
+    });
+
+    test('for multiple schemes', () => {
+      expect(entriesFromObjects([schema1, schema2])).toStrictEqual({
+        ...schema1.entries,
+        ...schema2.entries,
+      });
+    });
+
+    test('with overwrites', () => {
+      expect(entriesFromObjects([schema1, schema2, schema3])).toStrictEqual({
+        ...schema1.entries,
+        ...schema2.entries,
+        ...schema3.entries,
+      });
+    });
+
+    test('for empty entries', () => {
+      expect(entriesFromObjects([object({})])).toStrictEqual({});
+      expect(entriesFromObjects([object({}), objectAsync({})])).toStrictEqual(
+        {}
+      );
+    });
+  });
+});

library/src/utils/entriesFromObjects/entriesFromObjects.ts

@@ -0,0 +1,117 @@
+import type {
+  LooseObjectIssue,
+  LooseObjectSchema,
+  LooseObjectSchemaAsync,
+  ObjectIssue,
+  ObjectSchema,
+  ObjectSchemaAsync,
+  ObjectWithRestIssue,
+  ObjectWithRestSchema,
+  ObjectWithRestSchemaAsync,
+  StrictObjectIssue,
+  StrictObjectSchema,
+  StrictObjectSchemaAsync,
+} from '../../schemas/index.ts';
+import type {
+  BaseIssue,
+  BaseSchema,
+  BaseSchemaAsync,
+  ErrorMessage,
+  ObjectEntries,
+  ObjectEntriesAsync,
+  Prettify,
+} from '../../types/index.ts';
+
+/**
+ * Schema type.
+ */
+type Schema =
+  | LooseObjectSchema<ObjectEntries, ErrorMessage<LooseObjectIssue> | undefined>
+  | LooseObjectSchemaAsync<
+      ObjectEntriesAsync,
+      ErrorMessage<LooseObjectIssue> | undefined
+    >
+  | ObjectSchema<ObjectEntries, ErrorMessage<ObjectIssue> | undefined>
+  | ObjectSchemaAsync<ObjectEntriesAsync, ErrorMessage<ObjectIssue> | undefined>
+  | ObjectWithRestSchema<
+      ObjectEntries,
+      BaseSchema<unknown, unknown, BaseIssue<unknown>>,
+      ErrorMessage<ObjectWithRestIssue> | undefined
+    >
+  | ObjectWithRestSchemaAsync<
+      ObjectEntriesAsync,
+      | BaseSchema<unknown, unknown, BaseIssue<unknown>>
+      | BaseSchemaAsync<unknown, unknown, BaseIssue<unknown>>,
+      ErrorMessage<ObjectWithRestIssue> | undefined
+    >
+  | StrictObjectSchema<
+      ObjectEntries,
+      ErrorMessage<StrictObjectIssue> | undefined
+    >
+  | StrictObjectSchemaAsync<
+      ObjectEntriesAsync,
+      ErrorMessage<StrictObjectIssue> | undefined
+    >;
+
+/**
+ * Merge entries type.
+ */
+type MergeEntries<
+  TFirstEntries extends ObjectEntries | ObjectEntriesAsync,
+  TRestEntries extends ObjectEntries | ObjectEntriesAsync,
+> = Prettify<
+  {
+    [TKey in keyof TFirstEntries as TKey extends Exclude<
+      keyof TFirstEntries,
+      keyof TRestEntries
+    >
+      ? TKey
+      : never]: TFirstEntries[TKey];
+  } & TRestEntries
+>;
+
+/**
+ * Recursive merge type.
+ */
+type RecursiveMerge<TSchemas extends [Schema, ...Schema[]]> = TSchemas extends [
+  infer TFirstSchema extends Schema,
+]
+  ? TFirstSchema['entries']
+  : TSchemas extends [
+        infer TFirstSchema extends Schema,
+        ...infer TRestSchemas extends [Schema, ...Schema[]],
+      ]
+    ? MergeEntries<TFirstSchema['entries'], RecursiveMerge<TRestSchemas>>
+    : never;
+
+/**
+ * Merged entries types.
+ */
+type MergedEntries<TSchemas extends [Schema, ...Schema[]]> = Prettify<
+  RecursiveMerge<TSchemas>
+>;
+
+/**
+ * Creates a new object entries definition from existing object schemas.
+ *
+ * @param schemas The schemas to merge the entries from.
+ *
+ * @returns The object entries from the schemas.
+ *
+ * @beta
+ */
+export function entriesFromObjects<
+  const TSchemas extends [Schema, ...Schema[]],
+>(schemas: TSchemas): MergedEntries<TSchemas>;
+
+// @__NO_SIDE_EFFECTS__
+export function entriesFromObjects(
+  schemas: [Schema, ...Schema[]]
+): MergedEntries<[Schema, ...Schema[]]> {
+  const entries = {};
+  for (const schema of schemas) {
+    Object.assign(entries, schema.entries);
+  }
+  // @ts-expect-error
+  return entries;
+}

library/src/utils/entriesFromObjects/index.ts

@@ -0,0 +1 @@
+export * from './entriesFromObjects.ts';

library/src/utils/index.ts

@@ -8,6 +8,7 @@ export * from './_isValidObjectKey/index.ts';
 export * from './_joinExpects/index.ts';
 export * from './_stringify/index.ts';
 export * from './entriesFromList/index.ts';
+export * from './entriesFromObjects/index.ts';
 export * from './getDotPath/index.ts';
 export * from './isOfKind/index.ts';
 export * from './isOfType/index.ts';

website/src/routes/api/(utils)/entriesFromObjects/index.mdx

@@ -0,0 +1,54 @@
+---
+title: entriesFromObjects
+description: Creates a new object entries definition from existing object schemas.
+source: /utils/entriesFromObjects/entriesFromObjects.ts
+contributors:
+  - fabian-hiller
+---
+
+import { ApiList, Property } from '~/components';
+import { properties } from './properties';
+
+# entriesFromObjects
+
+Creates a new object entries definition from existing object schemas.
+
+```ts
+const entries = v.entriesFromObjects<TSchemas>(schemas);
+```
+
+## Generics
+
+- `TSchemas` <Property {...properties.TSchemas} />
+
+## Parameters
+
+- `schemas` <Property {...properties.schemas} />
+
+## Returns
+
+- `entries` <Property {...properties.entries} />
+
+## Examples
+
+The following example show how `entriesFromObjects` can be used.
+
+> Hint: The third schema of the list overwrites the `foo` and `baz` properties of the previous schemas.
+
+```ts
+const ObjectSchema = v.object(
+  v.entriesFromObjects([
+     v.object({ foo:  v.string(), bar:  v.string() });
+     v.object({ baz:  v.number(), qux:  v.number() });
+     v.object({ foo:  v.boolean(), baz:  v.boolean() });
+  ])
+);
+```
+
+## Related
+
+The following APIs can be combined with `entriesFromObjects`.
+
+### Schemas
+
+<ApiList items={['looseObject', 'object', 'objectWithRest', 'strictObject']} />

website/src/routes/api/(utils)/entriesFromObjects/properties.ts

@@ -0,0 +1,42 @@
+import type { PropertyProps } from '~/components';
+
+export const properties: Record<string, PropertyProps> = {
+  TSchemas: {
+    modifier: 'extends',
+    type: {
+      type: 'tuple',
+      items: [
+        {
+          type: 'custom',
+          name: 'Schema',
+        },
+        {
+          type: 'array',
+          spread: true,
+          item: {
+            type: 'custom',
+            name: 'Schema',
+          },
+        },
+      ],
+    },
+  },
+  schemas: {
+    type: {
+      type: 'custom',
+      name: 'TSchemas',
+    },
+  },
+  entries: {
+    type: {
+      type: 'custom',
+      name: 'MergedEntries',
+      generics: [
+        {
+          type: 'custom',
+          name: 'TSchemas',
+        },
+      ],
+    },
+  },
+};

website/src/routes/api/menu.md

@@ -194,6 +194,7 @@
 ## Utils
 
 - [entriesFromList](/api/entriesFromList/)
+- [entriesFromObjects](/api/entriesFromObjects/)
 - [getDotPath](/api/getDotPath/)
 - [isOfKind](/api/isOfKind/)
 - [isOfType](/api/isOfType/)