Bug #20216: Circular parameter reference not checked for assignment

• Status: Closed
• Assignee: -
• Target version: -
• Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN

[kddnewton (Kevin Newton)]

I wanted to check if this was a bug or desired.

Usually when you reference a parameter within its own default value (optional positional or optional keyword) it raises a syntax error. This is unless you use it in an assignment, in which case it is not checked. Is this desired? Here's an example:

def foo(bar = bar = 1); end
def foo(bar: bar = 1); end

I'm not sure what this code is supposed to be doing. I expected it to raise a syntax error.

[nobu (Nobuyoshi Nakada)]

They are not "reference"s, I think.

[kddnewton (Kevin Newton)]

• Status changed from Open to Closed