Method write

prqlc/prqlc/src/codegen/ast.rs:27–48

(&self, mut opt: WriteOpt)

impl WriteSource for pr::Expr {
    fn write(&self, mut opt: WriteOpt) -> Option<String> {
        let mut r = String::new();

        if let Some(alias) = &self.alias {
            r += opt.consume(&write_ident_part(alias))?;
            r += opt.consume(" = ")?;
            opt.unbound_expr = false;
        }

        if !needs_parenthesis(self, &opt) {
            r += &self.kind.write(opt.clone())?;
        } else {
            let value = self.kind.write_between("(", ")", opt.clone());

            if let Some(value) = value {
                r += &value;
            } else {
                r += &break_line_within_parenthesis(&self.kind, opt)?;
            }
        };
        Some(r)
    }
}

fn needs_parenthesis(this: &pr::Expr, opt: &WriteOpt) -> bool {