Split traits module into submodules

1 files changed, 0 insertions, 154 deletions

diff --git a/dhall/src/traits.rs b/dhall/src/traits.rs
deleted file mode 100644
index 328cbbc..0000000
--- a/dhall/src/traits.rs
+++ /dev/null
@@ -1,154 +0,0 @@
-use crate::error::*;
-use crate::expr::*;
-use dhall_core::*;
-use dhall_generator::*;
-use std::borrow::Cow;
-
-pub trait StaticType {
-    fn get_static_type() -> Type;
-}
-
-/// Trait for rust types that can be represented in dhall in
-/// a single way, independent of the value. A typical example is `Option<bool>`,
-/// represented by the dhall expression `Optional Bool`. A typical counterexample
-/// is `HashMap<Text, bool>` because dhall cannot represent records with a
-/// variable number of fields.
-pub trait SimpleStaticType {
-    fn get_simple_static_type() -> SimpleType;
-}
-
-
-pub trait Deserialize<'a>: Sized {
-    fn from_str(s: &'a str, ty: Option<&Type>) -> Result<Self>;
-}
-
-impl<'a> Deserialize<'a> for Parsed {
-    /// Simply parses the provided string. Ignores the
-    /// provided type.
-    fn from_str(s: &'a str, _ty: Option<&Type>) -> Result<Self> {
-        Ok(Parsed::parse_str(s).map_err(|_| ())?)
-    }
-}
-
-impl<'a> Deserialize<'a> for Resolved {
-    /// Parses and resolves the provided string. Ignores the
-    /// provided type.
-    fn from_str(s: &'a str, ty: Option<&Type>) -> Result<Self> {
-        Ok(Parsed::from_str(s, ty)?
-            .resolve()
-            .map_err(|_| ())?
-        )
-    }
-}
-
-impl<'a> Deserialize<'a> for Typed {
-    /// Parses, resolves and typechecks the provided string.
-    fn from_str(s: &'a str, ty: Option<&Type>) -> Result<Self> {
-        // TODO: compare with provided type
-        Ok(Resolved::from_str(s, ty)?
-            .typecheck()
-            .map_err(|_| ())?
-        )
-    }
-}
-
-impl<'a> Deserialize<'a> for Normalized {
-    /// Parses, resolves, typechecks and normalizes the provided string.
-    fn from_str(s: &'a str, ty: Option<&Type>) -> Result<Self> {
-        Ok(Typed::from_str(s, ty)?.normalize())
-    }
-}
-
-impl<'a> Deserialize<'a> for Type {
-    fn from_str(s: &'a str, ty: Option<&Type>) -> Result<Self> {
-        Ok(Normalized::from_str(s, ty)?.into_type())
-    }
-}
-
-fn mktype(x: SubExpr<X, X>) -> SimpleType {
-    SimpleType(x)
-}
-
-impl<T: SimpleStaticType> StaticType for T {
-    fn get_static_type() -> Type {
-        crate::expr::Normalized(
-            T::get_simple_static_type().into(),
-            Type::const_type(),
-        )
-        .into_type()
-    }
-}
-
-impl StaticType for SimpleType {
-    fn get_static_type() -> Type {
-        Type::const_type()
-    }
-}
-
-impl SimpleStaticType for bool {
-    fn get_simple_static_type() -> SimpleType {
-        mktype(dhall_expr!(Bool))
-    }
-}
-
-impl SimpleStaticType for Natural {
-    fn get_simple_static_type() -> SimpleType {
-        mktype(dhall_expr!(Natural))
-    }
-}
-
-impl SimpleStaticType for Integer {
-    fn get_simple_static_type() -> SimpleType {
-        mktype(dhall_expr!(Integer))
-    }
-}
-
-impl SimpleStaticType for String {
-    fn get_simple_static_type() -> SimpleType {
-        mktype(dhall_expr!(Text))
-    }
-}
-
-impl<A: SimpleStaticType, B: SimpleStaticType> SimpleStaticType for (A, B) {
-    fn get_simple_static_type() -> SimpleType {
-        let ta: SubExpr<_, _> = A::get_simple_static_type().into();
-        let tb: SubExpr<_, _> = B::get_simple_static_type().into();
-        mktype(dhall_expr!({ _1: ta, _2: tb }))
-    }
-}
-
-impl<T: SimpleStaticType> SimpleStaticType for Option<T> {
-    fn get_simple_static_type() -> SimpleType {
-        let t: SubExpr<_, _> = T::get_simple_static_type().into();
-        mktype(dhall_expr!(Optional t))
-    }
-}
-
-impl<T: SimpleStaticType> SimpleStaticType for Vec<T> {
-    fn get_simple_static_type() -> SimpleType {
-        let t: SubExpr<_, _> = T::get_simple_static_type().into();
-        mktype(dhall_expr!(List t))
-    }
-}
-
-impl<'a, T: SimpleStaticType> SimpleStaticType for &'a T {
-    fn get_simple_static_type() -> SimpleType {
-        T::get_simple_static_type()
-    }
-}
-
-impl<T> SimpleStaticType for std::marker::PhantomData<T> {
-    fn get_simple_static_type() -> SimpleType {
-        mktype(dhall_expr!({}))
-    }
-}
-
-impl<T: SimpleStaticType, E: SimpleStaticType> SimpleStaticType
-    for std::result::Result<T, E>
-{
-    fn get_simple_static_type() -> SimpleType {
-        let tt: SubExpr<_, _> = T::get_simple_static_type().into();
-        let te: SubExpr<_, _> = E::get_simple_static_type().into();
-        mktype(dhall_expr!(< Ok: tt | Err: te>))
-    }
-}