Method humanize

src/transform/src/typecheck.rs:1711–1728

Pretty prints a type difference Always indents two spaces

(&self, h: &H, f: &mut std::fmt::Formatter<'_>)

    ///
    /// Always indents two spaces
    pub fn humanize<H>(&self, h: &H, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result
    where
        H: ExprHumanizer,
    {
        use ReprRelationTypeDifference::*;
        match self {
            Length { len_sub, len_sup } => {
                writeln!(
                    f,
                    "  number of columns do not match ({len_sub} != {len_sup})"
                )
            }
            Column { col, diff } => {
                writeln!(f, "  column {col} differs:")?;
                diff.humanize(4, h, f)
            }
        }
    }
}

impl ReprColumnTypeDifference {