Function gen_template

cranelift/codegen/meta/src/gen_settings.rs:333–362

(group: &SettingGroup, fmt: &mut Formatter)

}

fn gen_template(group: &SettingGroup, fmt: &mut Formatter) {
    let mut default_bytes: Vec<u8> = vec![0; group.settings_size as usize];
    for setting in &group.settings {
        *default_bytes.get_mut(setting.byte_offset as usize).unwrap() |= setting.default_byte();
    }

    let default_bytes: Vec<String> = default_bytes.iter().map(|x| format!("{x:#04x}")).collect();
    let default_bytes_str = default_bytes.join(", ");

    fmt.add_block(
        "static TEMPLATE: detail::Template = detail::Template",
        |fmt| {
            fmtln!(fmt, "name: \"{}\",", group.name);
            fmtln!(fmt, "descriptors: &DESCRIPTORS,");
            fmtln!(fmt, "enumerators: &ENUMERATORS,");
            fmtln!(fmt, "hash_table: &HASH_TABLE,");
            fmtln!(fmt, "defaults: &[{}],", default_bytes_str);
            fmtln!(fmt, "presets: &PRESETS,");
        },
    );
    fmtln!(fmt, ";");

    fmt.doc_comment(format!(
        "Create a `settings::Builder` for the {} settings group.",
        group.name
    ));
    fmt.add_block("pub fn builder() -> Builder", |fmt| {
        fmtln!(fmt, "Builder::new(&TEMPLATE)");
    });
}

fn gen_display(group: &SettingGroup, fmt: &mut Formatter) {
    fmt.add_block("impl fmt::Display for Flags", |fmt| {