Function columns_pretty

src/transform/src/typecheck.rs:1685–1705

Prints a type prettily with a given `ExprHumanizer`

(cols: &[ReprColumnType], humanizer: &H)

/// Prints a type prettily with a given `ExprHumanizer`
pub fn columns_pretty<H>(cols: &[ReprColumnType], humanizer: &H) -> String
where
    H: ExprHumanizer,
{
    let mut s = String::with_capacity(2 + 3 * cols.len());

    s.push('(');

    let mut it = cols.iter().peekable();
    while let Some(col) = it.next() {
        s.push_str(&humanizer.humanize_column_type(col));

        if it.peek().is_some() {
            s.push_str(", ");
        }
    }

    s.push(')');

    s
}

impl ReprRelationTypeDifference {
    /// Pretty prints a type difference