no-redundant-closure-call

Disallow parameterless lambdas called where they are defined

Calling a parameterless lambda at its definition adds a callable boundary around one immediate computation.
Instead, you SHOULD evaluate the lambda body directly.

- Category: style
- Level: warning
- Fix: automatic
- Scope: module

Reported

function answer(): int32 {
    return (() => 42)();
}
Accepted

function answer(): int32 {
    return 42;
}
Prior art

- Clippy · redundantclosurecall

language/linter/src/rules/style/noredundantclosurecall.rs:8