diff options
Diffstat (limited to 'dhall/src/semantics/phase')
| -rw-r--r-- | dhall/src/semantics/phase/normalize.rs | 76 | ||||
| -rw-r--r-- | dhall/src/semantics/phase/typecheck.rs | 45 |
2 files changed, 61 insertions, 60 deletions
diff --git a/dhall/src/semantics/phase/normalize.rs b/dhall/src/semantics/phase/normalize.rs index 157d1f3..3e612aa 100644 --- a/dhall/src/semantics/phase/normalize.rs +++ b/dhall/src/semantics/phase/normalize.rs @@ -7,8 +7,8 @@ use crate::semantics::phase::Normalized; use crate::syntax; use crate::syntax::Const::Type; use crate::syntax::{ - BinOp, Builtin, ExprF, InterpolatedText, InterpolatedTextContents, Label, - NaiveDouble, + BinOp, Builtin, ExprKind, InterpolatedText, InterpolatedTextContents, + Label, NaiveDouble, }; // Ad-hoc macro to help construct closures @@ -46,7 +46,7 @@ macro_rules! make_closure { ValueKind::NEOptionalLit(v).into_value_with_type(opt_v_type) }}; (1 + $($rest:tt)*) => { - ValueKind::PartialExpr(ExprF::BinOp( + ValueKind::PartialExpr(ExprKind::BinOp( syntax::BinOp::NaturalPlus, make_closure!($($rest)*), Value::from_kind_and_type( @@ -61,7 +61,7 @@ macro_rules! make_closure { let head = make_closure!($($head)*); let tail = make_closure!($($tail)*); let list_type = tail.get_type_not_sort(); - ValueKind::PartialExpr(ExprF::BinOp( + ValueKind::PartialExpr(ExprKind::BinOp( syntax::BinOp::ListAppend, ValueKind::NEListLit(vec![head]) .into_value_with_type(list_type.clone()), @@ -404,7 +404,7 @@ pub(crate) fn apply_any(f: Value, a: Value, ty: &Value) -> ValueKind { } _ => { drop(f_borrow); - ValueKind::PartialExpr(ExprF::App(f, a)) + ValueKind::PartialExpr(ExprKind::App(f, a)) } } } @@ -482,7 +482,7 @@ enum Ret<'a> { ValueKind(ValueKind), Value(Value), ValueRef(&'a Value), - Expr(ExprF<Value, Normalized>), + Expr(ExprKind<Value, Normalized>), } fn apply_binop<'a>( @@ -590,7 +590,7 @@ fn apply_binop<'a>( }; let kvs = merge_maps::<_, _, _, !>(kvs1, kvs2, |k, v1, v2| { Ok(Value::from_kind_and_type( - ValueKind::PartialExpr(ExprF::BinOp( + ValueKind::PartialExpr(ExprKind::BinOp( RecursiveRecordMerge, v1.clone(), v2.clone(), @@ -610,7 +610,7 @@ fn apply_binop<'a>( } pub(crate) fn normalize_one_layer( - expr: ExprF<Value, Normalized>, + expr: ExprKind<Value, Normalized>, ty: &Value, ) -> ValueKind { use ValueKind::{ @@ -620,31 +620,31 @@ pub(crate) fn normalize_one_layer( }; let ret = match expr { - ExprF::Import(_) => unreachable!( + ExprKind::Import(_) => unreachable!( "There should remain no imports in a resolved expression" ), // Those cases have already been completely handled in the typechecking phase (using // `RetWhole`), so they won't appear here. - ExprF::Lam(_, _, _) - | ExprF::Pi(_, _, _) - | ExprF::Let(_, _, _, _) - | ExprF::Embed(_) - | ExprF::Const(_) - | ExprF::Builtin(_) - | ExprF::Var(_) - | ExprF::Annot(_, _) - | ExprF::RecordType(_) - | ExprF::UnionType(_) => { + ExprKind::Lam(_, _, _) + | ExprKind::Pi(_, _, _) + | ExprKind::Let(_, _, _, _) + | ExprKind::Embed(_) + | ExprKind::Const(_) + | ExprKind::Builtin(_) + | ExprKind::Var(_) + | ExprKind::Annot(_, _) + | ExprKind::RecordType(_) + | ExprKind::UnionType(_) => { unreachable!("This case should have been handled in typecheck") } - ExprF::Assert(_) => Ret::Expr(expr), - ExprF::App(v, a) => Ret::Value(v.app(a)), - ExprF::BoolLit(b) => Ret::ValueKind(BoolLit(b)), - ExprF::NaturalLit(n) => Ret::ValueKind(NaturalLit(n)), - ExprF::IntegerLit(n) => Ret::ValueKind(IntegerLit(n)), - ExprF::DoubleLit(n) => Ret::ValueKind(DoubleLit(n)), - ExprF::SomeLit(e) => Ret::ValueKind(NEOptionalLit(e)), - ExprF::EmptyListLit(ref t) => { + ExprKind::Assert(_) => Ret::Expr(expr), + ExprKind::App(v, a) => Ret::Value(v.app(a)), + ExprKind::BoolLit(b) => Ret::ValueKind(BoolLit(b)), + ExprKind::NaturalLit(n) => Ret::ValueKind(NaturalLit(n)), + ExprKind::IntegerLit(n) => Ret::ValueKind(IntegerLit(n)), + ExprKind::DoubleLit(n) => Ret::ValueKind(DoubleLit(n)), + ExprKind::SomeLit(e) => Ret::ValueKind(NEOptionalLit(e)), + ExprKind::EmptyListLit(ref t) => { // Check if the type is of the form `List x` let t_borrow = t.as_whnf(); match &*t_borrow { @@ -657,13 +657,13 @@ pub(crate) fn normalize_one_layer( } } } - ExprF::NEListLit(elts) => { + ExprKind::NEListLit(elts) => { Ret::ValueKind(NEListLit(elts.into_iter().collect())) } - ExprF::RecordLit(kvs) => { + ExprKind::RecordLit(kvs) => { Ret::ValueKind(RecordLit(kvs.into_iter().collect())) } - ExprF::TextLit(elts) => { + ExprKind::TextLit(elts) => { use InterpolatedTextContents::Expr; let elts: Vec<_> = squash_textlit(elts.into_iter()); // Simplify bare interpolation @@ -673,7 +673,7 @@ pub(crate) fn normalize_one_layer( Ret::ValueKind(TextLit(elts)) } } - ExprF::BoolIf(ref b, ref e1, ref e2) => { + ExprKind::BoolIf(ref b, ref e1, ref e2) => { let b_borrow = b.as_whnf(); match &*b_borrow { BoolLit(true) => Ret::ValueRef(e1), @@ -695,15 +695,15 @@ pub(crate) fn normalize_one_layer( } } } - ExprF::BinOp(o, ref x, ref y) => match apply_binop(o, x, y, ty) { + ExprKind::BinOp(o, ref x, ref y) => match apply_binop(o, x, y, ty) { Some(ret) => ret, None => Ret::Expr(expr), }, - ExprF::Projection(_, ref ls) if ls.is_empty() => { + ExprKind::Projection(_, ref ls) if ls.is_empty() => { Ret::ValueKind(RecordLit(HashMap::new())) } - ExprF::Projection(ref v, ref ls) => { + ExprKind::Projection(ref v, ref ls) => { let v_borrow = v.as_whnf(); match &*v_borrow { RecordLit(kvs) => Ret::ValueKind(RecordLit( @@ -719,7 +719,7 @@ pub(crate) fn normalize_one_layer( } } } - ExprF::Field(ref v, ref l) => { + ExprKind::Field(ref v, ref l) => { let v_borrow = v.as_whnf(); match &*v_borrow { RecordLit(kvs) => match kvs.get(l) { @@ -738,11 +738,11 @@ pub(crate) fn normalize_one_layer( } } } - ExprF::ProjectionByExpr(_, _) => { + ExprKind::ProjectionByExpr(_, _) => { unimplemented!("selection by expression") } - ExprF::Merge(ref handlers, ref variant, _) => { + ExprKind::Merge(ref handlers, ref variant, _) => { let handlers_borrow = handlers.as_whnf(); let variant_borrow = variant.as_whnf(); match (&*handlers_borrow, &*variant_borrow) { @@ -769,7 +769,7 @@ pub(crate) fn normalize_one_layer( } } } - ExprF::ToMap(_, _) => unimplemented!("toMap"), + ExprKind::ToMap(_, _) => unimplemented!("toMap"), }; match ret { diff --git a/dhall/src/semantics/phase/typecheck.rs b/dhall/src/semantics/phase/typecheck.rs index 5041235..f83bb94 100644 --- a/dhall/src/semantics/phase/typecheck.rs +++ b/dhall/src/semantics/phase/typecheck.rs @@ -10,7 +10,8 @@ use crate::semantics::phase::normalize::merge_maps; use crate::semantics::phase::Normalized; use crate::syntax; use crate::syntax::{ - Builtin, Const, Expr, ExprF, InterpolatedTextContents, Label, RawExpr, Span, + Builtin, Const, Expr, ExprKind, InterpolatedTextContents, Label, RawExpr, + Span, }; fn tck_pi_type( @@ -149,24 +150,24 @@ pub fn rc<E>(x: RawExpr<E>) -> Expr<E> { // Ad-hoc macro to help construct the types of builtins macro_rules! make_type { - (Type) => { ExprF::Const(Const::Type) }; - (Bool) => { ExprF::Builtin(Builtin::Bool) }; - (Natural) => { ExprF::Builtin(Builtin::Natural) }; - (Integer) => { ExprF::Builtin(Builtin::Integer) }; - (Double) => { ExprF::Builtin(Builtin::Double) }; - (Text) => { ExprF::Builtin(Builtin::Text) }; + (Type) => { ExprKind::Const(Const::Type) }; + (Bool) => { ExprKind::Builtin(Builtin::Bool) }; + (Natural) => { ExprKind::Builtin(Builtin::Natural) }; + (Integer) => { ExprKind::Builtin(Builtin::Integer) }; + (Double) => { ExprKind::Builtin(Builtin::Double) }; + (Text) => { ExprKind::Builtin(Builtin::Text) }; ($var:ident) => { - ExprF::Var(syntax::V(stringify!($var).into(), 0)) + ExprKind::Var(syntax::V(stringify!($var).into(), 0)) }; (Optional $ty:ident) => { - ExprF::App( - rc(ExprF::Builtin(Builtin::Optional)), + ExprKind::App( + rc(ExprKind::Builtin(Builtin::Optional)), rc(make_type!($ty)) ) }; (List $($rest:tt)*) => { - ExprF::App( - rc(ExprF::Builtin(Builtin::List)), + ExprKind::App( + rc(ExprKind::Builtin(Builtin::List)), rc(make_type!($($rest)*)) ) }; @@ -178,24 +179,24 @@ macro_rules! make_type { rc(make_type!($ty)), ); )* - ExprF::RecordType(kts) + ExprKind::RecordType(kts) }}; ($ty:ident -> $($rest:tt)*) => { - ExprF::Pi( + ExprKind::Pi( "_".into(), rc(make_type!($ty)), rc(make_type!($($rest)*)) ) }; (($($arg:tt)*) -> $($rest:tt)*) => { - ExprF::Pi( + ExprKind::Pi( "_".into(), rc(make_type!($($arg)*)), rc(make_type!($($rest)*)) ) }; (forall ($var:ident : $($ty:tt)*) -> $($rest:tt)*) => { - ExprF::Pi( + ExprKind::Pi( stringify!($var).into(), rc(make_type!($($ty)*)), rc(make_type!($($rest)*)) @@ -304,7 +305,7 @@ fn type_with( ctx: &TypecheckContext, e: Expr<Normalized>, ) -> Result<Value, TypeError> { - use syntax::ExprF::{Annot, Embed, Lam, Let, Pi, Var}; + use syntax::ExprKind::{Annot, Embed, Lam, Let, Pi, Var}; let span = e.span(); Ok(match e.as_ref() { @@ -359,13 +360,13 @@ fn type_with( /// layer. fn type_last_layer( ctx: &TypecheckContext, - e: ExprF<Value, Normalized>, + e: ExprKind<Value, Normalized>, span: Span, ) -> Result<Value, TypeError> { use syntax::BinOp::*; use syntax::Builtin::*; use syntax::Const::Type; - use syntax::ExprF::*; + use syntax::ExprKind::*; use TypeMessage::*; let mkerr = |msg: TypeMessage| Err(TypeError::new(ctx, msg)); @@ -578,7 +579,7 @@ fn type_last_layer( } BinOp(RecursiveRecordMerge, l, r) => RetTypeOnly(type_last_layer( ctx, - ExprF::BinOp( + ExprKind::BinOp( RecursiveRecordTypeMerge, l.get_type()?, r.get_type()?, @@ -612,7 +613,7 @@ fn type_last_layer( |_, l: &Value, r: &Value| { type_last_layer( ctx, - ExprF::BinOp( + ExprKind::BinOp( RecursiveRecordTypeMerge, l.clone(), r.clone(), @@ -806,5 +807,5 @@ pub(crate) fn typecheck_with( expr: Expr<Normalized>, ty: Expr<Normalized>, ) -> Result<Value, TypeError> { - typecheck(expr.rewrap(ExprF::Annot(expr.clone(), ty))) + typecheck(expr.rewrap(ExprKind::Annot(expr.clone(), ty))) } |