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path: root/Source/Provers/SMTLib/TypeDeclCollector.cs
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Diffstat (limited to 'Source/Provers/SMTLib/TypeDeclCollector.cs')
-rw-r--r--Source/Provers/SMTLib/TypeDeclCollector.cs2
1 files changed, 1 insertions, 1 deletions
diff --git a/Source/Provers/SMTLib/TypeDeclCollector.cs b/Source/Provers/SMTLib/TypeDeclCollector.cs
index 4a4ecfb6..40dc7cf6 100644
--- a/Source/Provers/SMTLib/TypeDeclCollector.cs
+++ b/Source/Provers/SMTLib/TypeDeclCollector.cs
@@ -266,7 +266,7 @@ void ObjectInvariant()
public static bool IsDatatypeFunction(Function f) {
return
- QKeyValue.FindBoolAttribute(f.Attributes, "constructor") ||
+ f is DatatypeConstructor ||
f is DatatypeSelector ||
f is DatatypeMembership;
}