Method set

cranelift/codegen/src/settings.rs:258–277

(&mut self, name: &str, value: &str)

    }

    fn set(&mut self, name: &str, value: &str) -> SetResult<()> {
        use self::detail::Detail;
        let (offset, detail) = self.lookup(name)?;
        match detail {
            Detail::Bool { bit } => {
                self.set_bit(offset, bit, parse_bool_value(value)?);
            }
            Detail::Num => {
                self.bytes[offset] = value
                    .parse()
                    .map_err(|_| SetError::BadValue("number".to_string()))?;
            }
            Detail::Enum { last, enumerators } => {
                self.bytes[offset] =
                    parse_enum_value(value, self.template.enums(last, enumerators))?;
            }
            Detail::Preset => return Err(SetError::BadName(name.to_string())),
        }
        Ok(())
    }
}

/// An error produced when changing a setting.