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nieuwe presentatie jow
[cc1516.git]
/
sem.dcl
diff --git
a/sem.dcl
b/sem.dcl
index
e981361
..
2b13436
100644
(file)
--- a/
sem.dcl
+++ b/
sem.dcl
@@
-6,16
+6,11
@@
from AST import :: AST, :: Pos, :: Type, :: FieldSelector, :: Op2
from StdOverloaded import class toString
:: SemError
from StdOverloaded import class toString
:: SemError
- = ParseError Pos String
- | UnifyError Pos Type Type
- | FieldSelectorError Pos Type FieldSelector
- | OperatorError Pos Op2 Type
- | UndeclaredVariableError Pos String
- | Error String
:: Gamma
:: SemOutput :== Either [SemError] (AST, Gamma)
:: Gamma
:: SemOutput :== Either [SemError] (AST, Gamma)
+:: Constraints :== [(Type, Type)]
instance toString SemError
instance toString Gamma
instance toString SemError
instance toString Gamma
-sem :: AST ->
SemOutput
+sem :: AST ->
Either [SemError] AST