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create utils file #93

Merged
merged 2 commits into from
Aug 7, 2024
Merged

create utils file #93

merged 2 commits into from
Aug 7, 2024

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mmkal
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@mmkal mmkal commented Aug 7, 2024

this is mostly to reduce the unrelated diff on #83 - it's essentially the same refactor of moving the type-utils like Not<...>, Extends<...>, Eq<...> et al. to a utils.ts file. I would like for that to be strictly overloads-related as much as possible esp. since it's a potentially controversial change.

FYI @aryaemami59 not sure if this will make it harder for you to merge main into your other PR, or if you plan on continuing to do that.

this is mostly to reduce the unrelated diff on #83
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This is wonderful. Thanks for the heads up.

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pkg-pr-new bot commented Aug 7, 2024

commit: 2715cd2

pnpm add https://pkg.pr.new/mmkal/expect-type@93

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@mmkal mmkal merged commit 5169567 into main Aug 7, 2024
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@mmkal mmkal deleted the utils-file branch August 7, 2024 07:58
aryaemami59 added a commit that referenced this pull request Aug 13, 2024
Related to #58
Related to #30

Improve support for overloaded functions (up to 10 overloads). So for an
example function type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

---

`.parameters` gives you an ExpectTypeOf instance with a union of the
parameter-tuple types, so:
 
```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

---

`.returns` gives you an ExpectTypeOf instance with a union of the return
types, so

```ts
expectTypeOf<Factorize>().returns.toEqualTypeOf<number[] | bigint[]>()
```

---

`.toBeCallableWith(...)` now accepts any overload input, not just the
"last" like before. And you can now chain it via `.returns` which gives
you the matching return type:

```ts
expectTypeOf<Factorize>().toBeCallableWith(5).returns.toEqualTypeOf<number[]>()
```

---

## Implementation

- overload utilities were added
- initially, I thought all that was needed was a utility that matches
`F` typeargs against a single 10-overload type
- but the `test-types` job caught that this _doesn't_ work for
typescript <5.3
- for lower typescript versions, it seems we need an approach more like
the one in #58
- there are some edge cases the tests found for generic functions and
parameterless functions, so there is _sometimes_ some "useless" overload
info that has to be explicitly excluded
- there are a couple of intermediate utilities to check if the
10-overload type can be used, and to exclude "useless" overloads
- equivalents added for constructor parameters too
- used the overloaded versions in `DeepBrand` too

<details>
<summary>update: moved these changes to #93 to reduce diff</summary>

- I felt the megafile `index.ts` was finally getting too big with the
added overload utilties:
  - so those were put in a new `overloads.ts`
- since overload utils they rely on some other existing utils, I created
`utils.ts` to avoid circular references
  - `index.ts` remains as the home for the main `ExpectTypeOf` exports
- added `export * from './utils'` since we have been exporting all the
internal utils and I don't want to break people
  - update: moved these changes to #93 to reduce diff
</details>

---------

Co-authored-by: Misha Kaletsky <mmkal@users.noreply.github.com>
Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Arya Emami <aryaemami59@yahoo.com>
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 20, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 20, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
kodiakhq bot referenced this pull request in X-oss-byte/Nextjs Aug 20, 2024
[![Mend Renovate](https://app.renovatebot.com/images/banner.svg)](https://renovatebot.com)

This PR contains the following updates:

| Package | Change | Age | Adoption | Passing | Confidence |
|---|---|---|---|---|---|
| [expect-type](https://github.com/mmkal/expect-type) | [`0.19.0` -> `0.20.0`](https://renovatebot.com/diffs/npm/expect-type/0.19.0/0.20.0) | [![age](https://developer.mend.io/api/mc/badges/age/npm/expect-type/0.20.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![adoption](https://developer.mend.io/api/mc/badges/adoption/npm/expect-type/0.20.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![passing](https://developer.mend.io/api/mc/badges/compatibility/npm/expect-type/0.19.0/0.20.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) | [![confidence](https://developer.mend.io/api/mc/badges/confidence/npm/expect-type/0.19.0/0.20.0?slim=true)](https://docs.renovatebot.com/merge-confidence/) |

---

### Release Notes

<details>
<summary>mmkal/expect-type (expect-type)</summary>

### [`v0.20.0`](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

[Compare Source](https://github.com/mmkal/expect-type/compare/0.19.0...v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@&#8203;mmkal](https://github.com/mmkal) in [https://github.com/mmkal/expect-type/pull/83](https://github.com/mmkal/expect-type/pull/83)

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#&#8203;83](https://github.com/mmkal/expect-type/issues/83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@&#8203;mrazauskas](https://github.com/mrazauskas) in [https://github.com/mmkal/expect-type/pull/69](https://github.com/mmkal/expect-type/pull/69)
-   Fix minor issues in docs by [@&#8203;aryaemami59](https://github.com/aryaemami59) in [https://github.com/mmkal/expect-type/pull/91](https://github.com/mmkal/expect-type/pull/91)
-   create utils file by [@&#8203;mmkal](https://github.com/mmkal) in [https://github.com/mmkal/expect-type/pull/93](https://github.com/mmkal/expect-type/pull/93)
-   branding.ts and messages.ts by [@&#8203;mmkal](https://github.com/mmkal) in [https://github.com/mmkal/expect-type/pull/95](https://github.com/mmkal/expect-type/pull/95)
-   improve overloads support, attempt 2 by [@&#8203;mmkal](https://github.com/mmkal) in [https://github.com/mmkal/expect-type/pull/83](https://github.com/mmkal/expect-type/pull/83)
-   Extends: explain myself  [`1e37116`](https://github.com/mmkal/expect-type/commit/1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#&#8203;104](https://github.com/mmkal/expect-type/issues/104))  [`4c40b07`](https://github.com/mmkal/expect-type/commit/4c40b07)
-   Re-export everything in `overloads.ts` file ([#&#8203;107](https://github.com/mmkal/expect-type/issues/107))  [`5ee0181`](https://github.com/mmkal/expect-type/commit/5ee0181)
-   JSDoc improvements ([#&#8203;100](https://github.com/mmkal/expect-type/issues/100))  [`0bbeffa`](https://github.com/mmkal/expect-type/commit/0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0

</details>

---

### Configuration

📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update again.

---

 - [ ] If you want to rebase/retry this PR, check this box

---

This PR was generated by [Mend Renovate](https://www.mend.io/free-developer-tools/renovate/). View the [repository job log](https://developer.mend.io/github/X-oss-byte/Nextjs).
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 21, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 21, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 21, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 21, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 21, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 21, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
renovate bot added a commit to mmkal/trpc-cli that referenced this pull request Aug 22, 2024
##### [`v0.20.0](https://github.com/mmkal/expect-type/releases/tag/v0.20.0)

#### Breaking changes

-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83

This change updates how overloaded functions are treated. Now, `.parameters` gives you a *union* of the parameter-tuples that a function can take. For example, given the following type:

```ts
type Factorize = {
  (input: number): number[]
  (input: bigint): bigint[]
}
```

Behvaiour before:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[bigint]>()
```

Behaviour now:

```ts
expectTypeOf<Factorize>().parameters.toEqualTypeOf<[number] | [bigint]>()
```

There were similar changes for `.returns`, `.parameter(...)`, and `.toBeCallableWith`. Also, overloaded functions are now differentiated properly when using `.branded.toEqualTypeOf` (this was a bug that it seems nobody found).

See [#83](mmkal/expect-type#83) for more details or look at the updated docs (including a new section called "[Overloaded functions](https://github.com/mmkal/expect-type#overloaded-functions)", which has more info on how this behaviour differs for TypeScript versions before 5.3).

#### What's Changed

-   Fix rendering issue in readme by [@mrazauskas](https://github.com/mrazauskas) in mmkal/expect-type#69
-   Fix minor issues in docs by [@aryaemami59](https://github.com/aryaemami59) in mmkal/expect-type#91
-   create utils file by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#93
-   branding.ts and messages.ts by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#95
-   improve overloads support, attempt 2 by [@mmkal](https://github.com/mmkal) in mmkal/expect-type#83
-   Extends: explain myself  [`1e37116`](mmkal/expect-type@1e37116)
-   Mark internal APIs with `@internal` JSDoc tag ([#104](mmkal/expect-type#104))  [`4c40b07`](mmkal/expect-type@4c40b07)
-   Re-export everything in `overloads.ts` file ([#107](mmkal/expect-type#107))  [`5ee0181`](mmkal/expect-type@5ee0181)
-   JSDoc improvements ([#100](mmkal/expect-type#100))  [`0bbeffa`](mmkal/expect-type@0bbeffa)

**Full Changelog**: mmkal/expect-type@v0.19.0...v0.20.0
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