Description
Bug Report
🔎 Search Terms
- "Only refers to a type, but is being used as a namespace here" TS202
- "Cannot find name" TS2304
- "Instantiation Expressions"
🕗 Version & Regression Information
I tried this in Nightly 5.1.0-dev.20230313, 4.7.4, 4.8.4, and 4.9.5 - the versions that support Instantiation Expressions on the playground but it does not complain. This does not cause my build to fail - only the Language Server complains locally.
- This is the behavior in every version I tried
⏯ Playground Link
NOT exhibited in playground: Playground link with relevant code
But the same code in VSCode latest with nightly typescript:
And I hope I'm showing that the right version of tsserver is being used (it would be nice if the TSServer startup announced its version for confirmation).
💻 Code
class Foo<T extends Object, C extends {}> {
private constructor(value : T, context: C){ }
static readonly makeFoo = <C extends {}>(context : C) =>
<T extends Object>(value : T) =>
new Foo<T, C>(value, context);
}
const x = Foo.makeFoo<{}>; // Cannot find name 'Foo'.ts(2304)
// 'Foo' only refers to a type, but
// is being used as a namespace here.ts(2702)
x({}); // 👍 `const x: <{}>(context: {}) => <T>(value: T) => Foo<T, {}>`Strangely, the language server is still able to give the right types for that and future related code.
🙁 Actual behavior
Non-blocking errors TS202 TS2304 on the Instantiation Expressions involving a generic static method.
🙂 Expected behavior
Should be OK or have a fully blocking error (hopefully with enough information to fix)