Method header

cranelift/codegen/src/cfg_printer.rs:35–41

(&self, w: &mut dyn Write)

    }

    fn header(&self, w: &mut dyn Write) -> Result {
        writeln!(w, "digraph \"{}\" {{", self.func.name)?;
        if let Some(entry) = self.func.layout.entry_block() {
            writeln!(w, "    {{rank=min; {entry}}}")?;
        }
        Ok(())
    }

    fn block_nodes(&self, w: &mut dyn Write) -> Result {
        let mut aliases = SecondaryMap::<_, Vec<_>>::new();