57 lines
1.8 KiB
Rust
57 lines
1.8 KiB
Rust
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use super::TypeNamespaceId;
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use super::GlobalNamespace;
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use super::r#trait::Trait;
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use super::r#type::Type;
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pub enum TypeDef<'a> {
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Type(Type<'a>),
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Trait(Trait<'a>),
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List(Vec<TypeDef<'a>>),
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Record(Vec<(String, TypeDef<'a>)>),
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}
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impl<'a> TypeDef<'a> {
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pub(super) fn from_internal(ns: &'a GlobalNamespace, def: &InternalTypeDef) -> TypeDef<'a> {
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match def {
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InternalTypeDef::Single(id) => match id {
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// safe to unwrap because this is only used with internal representations
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TypeNamespaceId::Types(id) => TypeDef::Type(ns.get_type(*id).unwrap()),
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TypeNamespaceId::Traits(id) => TypeDef::Trait(ns.get_trait(*id).unwrap()),
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},
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InternalTypeDef::List(list) => TypeDef::List(
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list.into_iter()
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.map(|def| Self::from_internal(ns, def))
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.collect(),
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),
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InternalTypeDef::Record(rec) => TypeDef::Record(
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rec.into_iter()
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.map(|(name, def)| (name.clone(), Self::from_internal(ns, def)))
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.collect(),
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),
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}
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}
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}
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pub(super) enum InternalTypeDef {
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Single(TypeNamespaceId),
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List(Vec<InternalTypeDef>),
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Record(Vec<(String, InternalTypeDef)>),
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}
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impl From<TypeDef<'_>> for InternalTypeDef {
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fn from(value: TypeDef) -> Self {
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match value {
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TypeDef::Type(val) => Self::Single(TypeNamespaceId::Types(val.id)),
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TypeDef::Trait(val) => Self::Single(TypeNamespaceId::Traits(val.id)),
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TypeDef::List(list) => Self::List(list.into_iter().map(|def| def.into()).collect()),
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TypeDef::Record(rec) => Self::Record(
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rec.into_iter()
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.map(|(name, typ)| (name, typ.into()))
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.collect(),
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),
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}
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}
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}
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