validate, that custom Python base types can be inherited from

lostmsu · lostmsu · commit 38e0b5d6bc9c · 2021-08-06T09:44:43.000-07:00
diff --git a/src/runtime/typemanager.cs b/src/runtime/typemanager.cs
@@ -390,6 +390,12 @@ static PyTuple GetBaseTypeTuple(Type clrType)
             {
                 throw new InvalidOperationException("At least one base type must be specified");
             }
+            var nonBases = bases.Where(@base => !@base.Flags.HasFlag(TypeFlags.BaseType)).ToList();
+            if (nonBases.Count > 0)
+            {
+                throw new InvalidProgramException("The specified Python type(s) can not be inherited from: "
+                                                  + string.Join(", ", nonBases));
+            }
 
             return new PyTuple(bases);
         }

Original file line number	Diff line number	Diff line change
`@@ -390,6 +390,12 @@ static PyTuple GetBaseTypeTuple(Type clrType)`
`390`	`390`	`{`
`391`	`391`	`throw new InvalidOperationException("At least one base type must be specified");`
`392`	`392`	`}`
	`393`	`+ var nonBases = bases.Where(@base => !@base.Flags.HasFlag(TypeFlags.BaseType)).ToList();`
	`394`	`+ if (nonBases.Count > 0)`
	`395`	`+ {`
	`396`	`+ throw new InvalidProgramException("The specified Python type(s) can not be inherited from: "`
	`397`	`+ + string.Join(", ", nonBases));`
	`398`	`+ }`
`393`	`399`
`394`	`400`	`return new PyTuple(bases);`
`395`	`401`	`}`