allow quantification over any tyvar in the environment, not just the first

[coq-hetmet.git] / src / HaskKinds.v

diff --git a/src/HaskKinds.v b/src/HaskKinds.v
index 54a1f64..d575d12 100644 (file)
--- a/src/HaskKinds.v
+++ b/src/HaskKinds.v
@@ -12,7 +12,6 @@ Variable Note                : Type.                         Extract Inlined Con
 Variable natToString         : nat         -> string.        Extract Inlined Constant natToString => "natToString".
 Instance NatToStringInstance : ToString nat := { toString := natToString }.
 
-(* Figure 7: production κ, ι *)
 Inductive Kind : Type := 
   | KindStar          : Kind                      (* ★  - the kind of coercions and the kind of types inhabited by [boxed] values *)
   | KindArrow         : Kind  -> Kind  -> Kind    (* ⇛  - type-function-space; things of kind X⇛Y are NOT inhabited by expressions*)
@@ -38,6 +37,22 @@ Instance KindToString : ToString Kind := { toString := kindToString }.
 Notation "'★'"   := KindStar.
 Notation "a ⇛ b" := (KindArrow a b).
 
+(* the kind of environment classifiers *)
+Definition ECKind := ★ ⇛ ★ ⇛ ★.  
+Opaque ECKind.
+
+Fixpoint kindToLatexMath (k:Kind) : LatexMath :=
+  match k with
+  | ★                            => rawLatexMath "\star"
+  | ★  ⇛ k2                      => (rawLatexMath "\star\Rightarrow ")+++kindToLatexMath k2
+  | k1 ⇛ k2                      => (rawLatexMath "(")+++kindToLatexMath k1+++(rawLatexMath ")\Rightarrow ")+++kindToLatexMath k2
+  | KindUnliftedType             => rawLatexMath "\text{\tt{\#}}"
+  | KindUnboxedTuple             => rawLatexMath "\text{\tt{(\#)}}"
+  | KindArgType                  => rawLatexMath "\text{\tt{??}}"
+  | KindOpenType                 => rawLatexMath "\text{\tt{?}}"
+  end.
+Instance KindToLatexMath : ToLatexMath Kind := { toLatexMath := kindToLatexMath }.
+
 Instance KindEqDecidable : EqDecidable Kind.
   apply Build_EqDecidable.
   induction v1.