Bug Report

🔎 Search Terms

control flow analysis, class static blocks

🕗 Version & Regression Information

• v4.4.0-beta
• v4.4.0-dev.20210708
• This is the behavior in every version I tried, and I reviewed the proposal
• I was unable to test this on prior versions because class static blocks were added in 4.4.0

⏯ Playground Link

Playground link with relevant code

💻 Code

let foo: number;

class C {
  static {
    foo = 3;
  }
}

console.log(foo);

🙁 Actual behavior

An error Variable 'foo' is used before being assigned.(2454) occurs at line 10, console.log(foo).

🙂 Expected behavior

Code compiles without errors.