fix(compiler-sfc): support proper type arguments for defineEmit helper

fix #2874
2021-03-29 16:38:07 -04:00
parent 2793bc0918
commit bb8cdcad9f
4 changed files with 40 additions and 14 deletions
--- a/test-dts/setupHelpers.test-d.ts
+++ b/test-dts/setupHelpers.test-d.ts
@@ -56,6 +56,15 @@ describe('defineEmit w/ type declaration', () => {
  emit()
  // @ts-expect-error
  emit('bar')
+
+  type Emits = { (e: 'foo' | 'bar'): void; (e: 'baz', id: number): void }
+  const emit2 = defineEmit<Emits>()
+
+  emit2('foo')
+  emit2('bar')
+  emit2('baz', 123)
+  // @ts-expect-error
+  emit2('baz')
 })

 describe('defineEmit w/ runtime declaration', () => {