use crate::hash::Hash;
use crate::StaticType;
use std::fmt;
/// Type information about a value, that can be printed for human consumption
/// through its [Display][fmt::Display] implementation.
#[derive(Debug, Clone, Copy)]
pub enum ValueTypeInfo {
/// The static type of a value.
StaticType(&'static StaticType),
/// The type of a value.
Type(Hash),
/// Reference to a foreign type.
Any(&'static str),
}
impl fmt::Display for ValueTypeInfo {
fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
match *self {
Self::StaticType(ty) => {
write!(fmt, "{}", ty.name)?;
}
Self::Type(ty) => {
write!(fmt, "type({})", ty)?;
}
Self::Any(type_name) => {
write!(fmt, "{}", type_name)?;
}
}
Ok(())
}
}