chore: migrate main code base from js -> ts

__tests__/application/compose.ts

@@ -1,22 +1,23 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
+import { KoaContext } from '@/context'
 
 describe('app.compose', () => {
   it('should work with default compose ', async () => {
     const app = new Koa()
-    const calls = []
+    const calls: number[] = []
 
-    app.use((ctx, next) => {
+    app.use((_ctx: KoaContext, next) => {
       calls.push(1)
       return next().then(() => {
         calls.push(4)
       })
     })
 
-    app.use((ctx, next) => {
+    app.use((_ctx: KoaContext, next) => {
       calls.push(2)
       return next().then(() => {
         calls.push(3)
@@ -37,7 +38,7 @@ describe('app.compose', () => {
     let count = 0
     const app = new Koa({
       compose (fns) {
-        return async (ctx) => {
+        return async (ctx: KoaContext) => {
           const dispatch = async () => {
             count++
             const fn = fns.shift()
@@ -48,12 +49,12 @@ describe('app.compose', () => {
       }
     })
 
-    app.use((ctx, next) => {
+    app.use((_ctx: KoaContext, next) => {
       calls.push(1)
       next()
       calls.push(4)
     })
-    app.use((ctx, next) => {
+    app.use((_ctx: KoaContext, next) => {
       calls.push(2)
       next()
       calls.push(3)

__tests__/application/context.ts

@@ -1,6 +1,6 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 
@@ -10,7 +10,7 @@ describe('app.context', () => {
   const app2 = new Koa()
 
   it('should merge properties', () => {
-    app1.use((ctx, next) => {
+    app1.use(ctx => {
       assert.strictEqual(ctx.msg, 'hello')
       ctx.status = 204
     })
@@ -21,7 +21,7 @@ describe('app.context', () => {
   })
 
   it('should not affect the original prototype', () => {
-    app2.use((ctx, next) => {
+    app2.use(ctx => {
       assert.strictEqual(ctx.msg, undefined)
       ctx.status = 204
     })

__tests__/application/currentContext.ts

@@ -1,6 +1,6 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 
@@ -18,13 +18,13 @@ describe('app.currentContext', () => {
 
     app.use(async ctx => {
       assert(ctx === app.currentContext)
-      await new Promise(resolve => {
+      await new Promise<void>(resolve => {
         setTimeout(() => {
           assert(ctx === app.currentContext)
           resolve()
         }, 1)
       })
-      await new Promise(resolve => {
+      await new Promise<void>(resolve => {
         assert(ctx === app.currentContext)
         setImmediate(() => {
           assert(ctx === app.currentContext)
@@ -68,7 +68,7 @@ describe('app.currentContext', () => {
       throw new Error('error message')
     })
 
-    const handleError = new Promise((resolve, reject) => {
+    const handleError = new Promise<void>((resolve, reject) => {
       app.on('error', (err, ctx) => {
         try {
           assert.strictEqual(err.message, 'error message')
@@ -91,8 +91,8 @@ describe('app.currentContext', () => {
       throw new Error('error message')
     })
 
-    const handleError = new Promise((resolve, reject) => {
-      app.on('error', (err, ctx) => {
+    const handleError = new Promise<void>((resolve, reject) => {
+      app.on('error', err => {
         try {
           assert.strictEqual(err.message, 'error message')
           assert.strictEqual(app.currentContext, undefined)

__tests__/application/index.ts

@@ -1,6 +1,7 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
+import CreateError from 'http-errors'
 
 import { describe, it } from '@jest/globals'
 
@@ -9,7 +10,7 @@ describe('app', () => {
   (/^v18\./.test(process.version) ? it.skip : it)('should handle socket errors', done => {
     const app = new Koa()
 
-    app.use((ctx, next) => {
+    app.use(ctx => {
       // triggers ctx.socket.writable == false
       ctx.socket.emit('error', new Error('boom'))
     })
@@ -27,7 +28,7 @@ describe('app', () => {
   it('should not .writeHead when !socket.writable', done => {
     const app = new Koa()
 
-    app.use((ctx, next) => {
+    app.use(ctx => {
       // set .writable to false
       ctx.socket.writable = false
       ctx.status = 204
@@ -79,16 +80,14 @@ describe('app', () => {
   })
 
   it('should set compose from the constructor', () => {
-    const compose = () => (ctx) => {}
+    const compose = () => () => {}
     const app = new Koa({ compose })
     assert.strictEqual(app.compose, compose)
   })
 
   it('should have a static property exporting `HttpError` from http-errors library', () => {
-    const CreateError = require('http-errors')
-
     assert.notEqual(Koa.HttpError, undefined)
     assert.deepStrictEqual(Koa.HttpError, CreateError.HttpError)
-    assert.throws(() => { throw new CreateError(500, 'test error') }, Koa.HttpError)
+    assert.throws(() => { throw CreateError(500, 'test error') }, Koa.HttpError)
   })
 })

__tests__/application/inspect.ts

@@ -1,6 +1,6 @@
 import util from 'node:util'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 

__tests__/application/onerror.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
-import { describe, it } from '@jest/globals'
+import { describe, expect, it, jest } from '@jest/globals'
 
 describe('app.onerror(err)', () => {
   it('should throw an error if a non-error is given', () => {
@@ -26,7 +26,7 @@ describe('app.onerror(err)', () => {
 
   it('should do nothing if status is 404', () => {
     const app = new Koa()
-    const err = new Error()
+    const err: any = new Error()
 
     err.status = 404
 

__tests__/application/request.ts

@@ -1,6 +1,6 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 
@@ -10,7 +10,7 @@ describe('app.request', () => {
   const app2 = new Koa()
 
   it('should merge properties', () => {
-    app1.use((ctx, next) => {
+    app1.use(ctx => {
       assert.strictEqual(ctx.request.message, 'hello')
       ctx.status = 204
     })
@@ -21,7 +21,7 @@ describe('app.request', () => {
   })
 
   it('should not affect the original prototype', () => {
-    app2.use((ctx, next) => {
+    app2.use(ctx => {
       assert.strictEqual(ctx.request.message, undefined)
       ctx.status = 204
     })

__tests__/application/respond.ts

@@ -2,7 +2,7 @@ import statuses from 'statuses'
 import request from 'supertest'
 import assert from 'node:assert'
 import fs from 'node:fs'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 
@@ -272,12 +272,12 @@ describe('app.respond', () => {
     it('should send the right body', () => {
       const app = new Koa()
 
-      app.use((ctx, next) => {
+      app.use(ctx => {
         const res = ctx.res
         ctx.status = 200
         res.setHeader('Content-Type', 'text/html')
         res.write('Hello')
-        return new Promise(resolve => {
+        return new Promise<void>(resolve => {
           setTimeout(() => {
             res.end('Goodbye')
             resolve()
@@ -386,6 +386,7 @@ describe('app.respond', () => {
           .expect(700)
           .expect('custom status')
 
+        // @ts-ignore
         assert.strictEqual(res.res.statusMessage, 'custom status')
       })
     })
@@ -406,6 +407,7 @@ describe('app.respond', () => {
           .expect(200)
           .expect('ok')
 
+        // @ts-ignore
         assert.strictEqual(res.res.statusMessage, 'ok')
       })
     })
@@ -764,8 +766,8 @@ describe('app.respond', () => {
       it('should expose the message', () => {
         const app = new Koa()
 
-        app.use(ctx => {
-          const err = new Error('sorry!')
+        app.use(() => {
+          const err: any = new Error('sorry!')
           err.status = 403
           err.expose = true
           throw err
@@ -781,8 +783,8 @@ describe('app.respond', () => {
       it('should respond with .status', () => {
         const app = new Koa()
 
-        app.use(ctx => {
-          const err = new Error('s3 explodes')
+        app.use(() => {
+          const err: any = new Error('s3 explodes')
           err.status = 403
           throw err
         })

__tests__/application/response.ts

@@ -1,6 +1,6 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 
@@ -15,7 +15,7 @@ describe('app.response', () => {
   const app7 = new Koa()
 
   it('should merge properties', () => {
-    app1.use((ctx, next) => {
+    app1.use(ctx => {
       assert.strictEqual(ctx.response.msg, 'hello')
       ctx.status = 204
     })
@@ -26,7 +26,7 @@ describe('app.response', () => {
   })
 
   it('should not affect the original prototype', () => {
-    app2.use((ctx, next) => {
+    app2.use(ctx => {
       assert.strictEqual(ctx.response.msg, undefined)
       ctx.status = 204
     })
@@ -37,7 +37,7 @@ describe('app.response', () => {
   })
 
   it('should not include status message in body for http2', async () => {
-    app3.use((ctx, next) => {
+    app3.use(ctx => {
       ctx.req.httpVersionMajor = 2
       ctx.status = 404
     })
@@ -48,7 +48,7 @@ describe('app.response', () => {
   })
 
   it('should set ._explicitNullBody correctly', async () => {
-    app4.use((ctx, next) => {
+    app4.use(ctx => {
       ctx.body = null
       assert.strictEqual(ctx.response._explicitNullBody, true)
     })
@@ -59,7 +59,7 @@ describe('app.response', () => {
   })
 
   it('should not set ._explicitNullBody incorrectly', async () => {
-    app5.use((ctx, next) => {
+    app5.use(ctx => {
       ctx.body = undefined
       assert.strictEqual(ctx.response._explicitNullBody, undefined)
       ctx.body = ''
@@ -74,7 +74,7 @@ describe('app.response', () => {
   })
 
   it('should add Content-Length when Transfer-Encoding is not defined', () => {
-    app6.use((ctx, next) => {
+    app6.use(ctx => {
       ctx.body = 'hello world'
     })
 
@@ -85,7 +85,7 @@ describe('app.response', () => {
   })
 
   it('should not add Content-Length when Transfer-Encoding is defined', () => {
-    app7.use((ctx, next) => {
+    app7.use(ctx => {
       ctx.set('Transfer-Encoding', 'chunked')
       ctx.body = 'hello world'
       assert.strictEqual(ctx.response.get('Content-Length'), undefined)

__tests__/application/toJSON.ts

@@ -1,5 +1,5 @@
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 

__tests__/application/use.ts

@@ -1,6 +1,6 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 

__tests__/context/cookies.ts

@@ -1,6 +1,6 @@
 import request from 'supertest'
 import assert from 'node:assert'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'
 

__tests__/context/inspect.ts

@@ -1,7 +1,7 @@
 import assert from 'node:assert'
 import util from 'node:util'
 import createContext from '../../test-helpers/context'
-import context from '../../lib/context'
+import context from '../../src/context'
 
 import { describe, it } from '@jest/globals'
 

__tests__/context/onerror.ts

@@ -1,7 +1,7 @@
 import request from 'supertest'
 import assert from 'node:assert'
 import createContext from '../../test-helpers/context'
-import Koa from '../..'
+import Koa from '../../src/application'
 
 import { describe, it } from '@jest/globals'