Fix Bugzilla 24807 - Error message missing parens for template instan…

…ce (#17015)
dlang · Oct 20, 2024 · 941a6e6 · 941a6e6
1 parent 58e4136
commit 941a6e6
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Showing 2 changed files with 19 additions and 1 deletion.
diff --git a/compiler/src/dmd/hdrgen.d b/compiler/src/dmd/hdrgen.d
@@ -3796,7 +3796,8 @@ private void tiargsToBuffer(TemplateInstance ti, ref OutBuffer buf, ref HdrGenSt
         }
         else if (Expression e = isExpression(oarg))
         {
-            if (e.op == EXP.int64 || e.op == EXP.float64 || e.op == EXP.null_ || e.op == EXP.string_ || e.op == EXP.this_)
+            if (!(e.type && e.type.isTypeEnum()) && e.op == EXP.int64 || e.op == EXP.float64 ||
+                e.op == EXP.null_ || e.op == EXP.string_ || e.op == EXP.this_)
             {
                 toCBuffer(e, buf, hgs);
                 return;

diff --git a/compiler/test/fail_compilation/template_enum_param.d b/compiler/test/fail_compilation/template_enum_param.d
@@ -0,0 +1,17 @@
+/*
+TEST_OUTPUT:
+---
+fail_compilation/template_enum_param.d(15): Error: static assert:  `false` is false
+fail_compilation/template_enum_param.d(17):        instantiated from here: `X!(E.a)`
+---
+*/
+
+enum E
+{
+    a,b,c
+}
+template X(E e)
+{
+    static assert(false);
+}
+alias Y = X!(E.a);