opover.d: Refactor pattern matching with isXXX (#20794)

Co-authored-by: Dennis Korpel <[email protected]>
dlang · Jan 28, 2025 · c3da7f0 · c3da7f0
1 parent a55dff5
commit c3da7f0
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diff --git a/compiler/src/dmd/mtype.d b/compiler/src/dmd/mtype.d
@@ -4316,10 +4316,10 @@ void attributesApply(const TypeFunction tf, void delegate(string) dg, TRUSTforma
 AggregateDeclaration isAggregate(Type t)
 {
     t = t.toBasetype();
-    if (t.ty == Tclass)
-        return (cast(TypeClass)t).sym;
-    if (t.ty == Tstruct)
-        return (cast(TypeStruct)t).sym;
+    if (auto tc = t.isTypeClass())
+        return tc.sym;
+    if (auto ts = t.isTypeStruct())
+        return ts.sym;
     return null;
 }