diff options
Diffstat (limited to 'snug-clean/src/Snug/Syntax.dcl')
| -rw-r--r-- | snug-clean/src/Snug/Syntax.dcl | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/snug-clean/src/Snug/Syntax.dcl b/snug-clean/src/Snug/Syntax.dcl index 5246dcd..f6ff0f2 100644 --- a/snug-clean/src/Snug/Syntax.dcl +++ b/snug-clean/src/Snug/Syntax.dcl @@ -1,5 +1,7 @@ definition module Snug.Syntax +from Data.Set import :: Set + :: TypeIdent :== String :: TypeVarIdent :== String :: ConstructorIdent :== String @@ -38,3 +40,8 @@ definition module Snug.Syntax | TypeDef !TypeIdent !Type | FunDef !SymbolIdent ![(SymbolIdent, Type)] !Type !Expression | TestDef !String !Type !Expression !String + +class usedSymbols a :: !a -> Set SymbolIdent +instance usedSymbols [a] | usedSymbols a +instance usedSymbols (a, b) | usedSymbols a & usedSymbols b +instance usedSymbols CaseAlternative, Expression, Pattern |