Function call_leaf

plugins/ast/python/src/lib.rs:564–570

Last dotted segment of a call target: `Column` -> "Column", `models.CharField` -> "CharField".

(func: &Expression)

/// Last dotted segment of a call target: `Column` -> "Column", `models.CharField` -> "CharField".
fn call_leaf(func: &Expression) -> Option<String> {
    match func {
        Expression::Name(NameExpression { id, .. }) => Some(id.to_string()),
        Expression::Attribute(AttributeExpression { attr, .. }) => Some(attr.as_str().to_string()),
        _ => None,
    }
}

/// Leading dotted segment: `models.CharField` -> "models", bare `Column` -> None.
fn call_module(func: &Expression) -> Option<String> {