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-rw-r--r--dhall/src/api/mod.rs159
1 files changed, 0 insertions, 159 deletions
diff --git a/dhall/src/api/mod.rs b/dhall/src/api/mod.rs
deleted file mode 100644
index 188b6c0..0000000
--- a/dhall/src/api/mod.rs
+++ /dev/null
@@ -1,159 +0,0 @@
-mod serde;
-pub(crate) mod static_type;
-
-pub use value::Value;
-
-mod value {
- use super::Type;
- use crate::error::Result;
- use crate::phase::{NormalizedSubExpr, Parsed, Typed};
-
- // A Dhall value
- pub struct Value(Typed);
-
- impl Value {
- pub fn from_str(s: &str, ty: Option<&Type>) -> Result<Self> {
- let resolved = Parsed::parse_str(s)?.resolve()?;
- let typed = match ty {
- None => resolved.typecheck()?,
- Some(t) => resolved.typecheck_with(&t.to_type())?,
- };
- Ok(Value(typed))
- }
- pub(crate) fn to_expr(&self) -> NormalizedSubExpr {
- self.0.to_expr()
- }
- pub(crate) fn to_typed(&self) -> Typed {
- self.0.clone()
- }
- }
-}
-
-pub use typ::Type;
-
-mod typ {
- use dhall_syntax::Builtin;
-
- use crate::core::thunk::{Thunk, TypeThunk};
- use crate::core::value::Value;
- use crate::error::Result;
- use crate::phase::{NormalizedSubExpr, Typed};
-
- /// A Dhall expression representing a type.
- ///
- /// This captures what is usually simply called a "type", like
- /// `Bool`, `{ x: Integer }` or `Natural -> Text`.
- #[derive(Debug, Clone, PartialEq, Eq)]
- pub struct Type(Typed);
-
- impl Type {
- pub(crate) fn from_value(v: Value) -> Self {
- Type(Typed::from_value_untyped(v))
- }
- pub(crate) fn make_builtin_type(b: Builtin) -> Self {
- Self::from_value(Value::from_builtin(b))
- }
- pub(crate) fn make_optional_type(t: Type) -> Self {
- Self::from_value(Value::AppliedBuiltin(
- Builtin::Optional,
- vec![t.to_thunk()],
- ))
- }
- pub(crate) fn make_list_type(t: Type) -> Self {
- Self::from_value(Value::AppliedBuiltin(
- Builtin::List,
- vec![t.to_thunk()],
- ))
- }
- #[doc(hidden)]
- pub fn make_record_type(
- kts: impl Iterator<Item = (String, Type)>,
- ) -> Self {
- Self::from_value(Value::RecordType(
- kts.map(|(k, t)| {
- (k.into(), TypeThunk::from_thunk(t.to_thunk()))
- })
- .collect(),
- ))
- }
- #[doc(hidden)]
- pub fn make_union_type(
- kts: impl Iterator<Item = (String, Option<Type>)>,
- ) -> Self {
- Self::from_value(Value::UnionType(
- kts.map(|(k, t)| {
- (k.into(), t.map(|t| TypeThunk::from_thunk(t.to_thunk())))
- })
- .collect(),
- ))
- }
-
- pub(crate) fn to_thunk(&self) -> Thunk {
- self.0.to_thunk()
- }
- #[allow(dead_code)]
- pub(crate) fn to_expr(&self) -> NormalizedSubExpr {
- self.0.to_expr()
- }
- pub(crate) fn to_type(&self) -> crate::phase::Type {
- self.0.to_type()
- }
- }
-
- impl crate::de::Deserialize for Type {
- fn from_dhall(v: &crate::api::Value) -> Result<Self> {
- Ok(Type(v.to_typed()))
- }
- }
-}
-
-/// Deserialization of Dhall expressions into Rust
-pub mod de {
- pub use super::static_type::StaticType;
- pub use super::{Type, Value};
- use crate::error::Result;
- #[doc(hidden)]
- pub use dhall_proc_macros::StaticType;
-
- /// A data structure that can be deserialized from a Dhall expression
- ///
- /// This is automatically implemented for any type that [serde][serde]
- /// can deserialize.
- ///
- /// This trait cannot be implemented manually.
- // TODO: seal trait
- pub trait Deserialize: Sized {
- /// See [dhall::de::from_str][crate::de::from_str]
- fn from_dhall(v: &Value) -> Result<Self>;
- }
-
- /// Deserialize an instance of type T from a string of Dhall text.
- ///
- /// This will recursively resolve all imports in the expression, and
- /// typecheck it before deserialization. Relative imports will be resolved relative to the
- /// provided file. More control over this process is not yet available
- /// but will be in a coming version of this crate.
- ///
- /// If a type is provided, this additionally checks that the provided
- /// expression has that type.
- pub fn from_str<T>(s: &str, ty: Option<&Type>) -> Result<T>
- where
- T: Deserialize,
- {
- T::from_dhall(&Value::from_str(s, ty)?)
- }
-
- /// Deserialize an instance of type T from a string of Dhall text,
- /// additionally checking that it matches the type of T.
- ///
- /// This will recursively resolve all imports in the expression, and
- /// typecheck it before deserialization. Relative imports will be resolved relative to the
- /// provided file. More control over this process is not yet available
- /// but will be in a coming version of this crate.
- pub fn from_str_auto_type<T>(s: &str) -> Result<T>
- where
- T: Deserialize + StaticType,
- {
- from_str(s, Some(&<T as StaticType>::static_type()))
- }
-}