Unused variable error when using struct in a loop #22

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opened 2025-08-22 20:19:29 +00:00 by Furkan · 1 comment

Furkan commented

2025-08-22 20:19:29 +00:00

Error:

main.q:15:3

    var.x += 1
    ┬
    ╰─ Unused value 'var.x += 1'

Code:

import io

Test {
	x int
}

main() {
	var := Test{
		x : 2 // Changing this to 0 makes it work
	}

	loop 0..10 {
		io.writeInt(var.x)

		var.x += 1
	}
}

Note: using x instead of test.x makes the code work it has to do something with structs

### Error: ``` main.q:15:3 var.x += 1 ┬ ╰─ Unused value 'var.x += 1' ``` --- ### Code: ``` import io Test { x int } main() { var := Test{ x : 2 // Changing this to 0 makes it work } loop 0..10 { io.writeInt(var.x) var.x += 1 } } ``` Note: using x instead of test.x makes the code work it has to do something with structs

👍 1

ed added the

bug

label

2025-08-22 20:57:01 +00:00

ed self-assigned this

2025-08-23 05:41:37 +00:00

ed commented

2025-08-25 06:58:04 +00:00

Owner

Fixed in cli/q@f2da14fb45.
Test is loop-modify-struct.q.

Fixed in https://git.urbach.dev/cli/q/commit/f2da14fb4582995ac6933b3d8ef247228bb4f216. Test is [loop-modify-struct.q](https://git.urbach.dev/cli/q/src/branch/main/tests/loop-modify-struct.q).

👍 1

ed added spent time

2025-08-25 06:59:15 +00:00

1 hour