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-rw-r--r--Sil/Check.dcl5
1 files changed, 4 insertions, 1 deletions
diff --git a/Sil/Check.dcl b/Sil/Check.dcl
index b222079..1d5929d 100644
--- a/Sil/Check.dcl
+++ b/Sil/Check.dcl
@@ -7,7 +7,10 @@ from Data.Maybe import :: Maybe
from Sil.Syntax import :: Program, :: Name
:: CheckError
- = ReturnExpressionFromVoidError Name
+ = NoMainFunction
+ | DuplicateFunctionName Name
+ | DuplicateLocalName Name Name
+ | ReturnExpressionFromVoidError Name
| NoReturnFromNonVoidError Name
instance toString CheckError