From 16ec7b681bf314b42a685428ce91d3234459405f Mon Sep 17 00:00:00 2001
From: Walter Bright <WalterBright@users.noreply.github.com>
Date: Tue, 16 May 2023 00:07:19 -0700
Subject: [PATCH] fix Issue 23913 - __traits(getMember) fails for some C
 symbols (#15234)

---
 compiler/src/dmd/expressionsem.d           | 12 +++++++++++-
 compiler/test/compilable/imports/library.c |  5 +++++
 compiler/test/compilable/test23913.d       |  7 +++++++
 3 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 compiler/test/compilable/imports/library.c
 create mode 100644 compiler/test/compilable/test23913.d

diff --git a/compiler/src/dmd/expressionsem.d b/compiler/src/dmd/expressionsem.d
index 987c42cdc7..bdad3a2726 100644
--- a/compiler/src/dmd/expressionsem.d
+++ b/compiler/src/dmd/expressionsem.d
@@ -13175,10 +13175,20 @@ Expression dotIdSemanticProp(DotIdExp exp, Scope* sc, bool gag)
                 Expression se = new ScopeExp(exp.loc, imp.pkg);
                 return se.expressionSemantic(sc);
             }
+
+            if (auto attr = s.isAttribDeclaration())
+            {
+                if (auto sm = ie.sds.search(exp.loc, exp.ident, flags))
+                {
+                    auto es = new DsymbolExp(exp.loc, sm);
+                    return es;
+                }
+            }
+
             // BUG: handle other cases like in IdentifierExp::semantic()
             debug
             {
-                printf("s = '%s', kind = '%s'\n", s.toChars(), s.kind());
+                printf("s = %p '%s', kind = '%s'\n", s, s.toChars(), s.kind());
             }
             assert(0);
         }
diff --git a/compiler/test/compilable/imports/library.c b/compiler/test/compilable/imports/library.c
new file mode 100644
index 0000000000..4951e46557
--- /dev/null
+++ b/compiler/test/compilable/imports/library.c
@@ -0,0 +1,5 @@
+typedef enum SomeEnum
+{
+    foo = 0,
+    bar = -10000,
+} SomeEnum;
diff --git a/compiler/test/compilable/test23913.d b/compiler/test/compilable/test23913.d
new file mode 100644
index 0000000000..e39c6dec31
--- /dev/null
+++ b/compiler/test/compilable/test23913.d
@@ -0,0 +1,7 @@
+// EXTRA_FILES: imports/library.c
+
+// https://issues.dlang.org/show_bug.cgi?id=23913
+
+import imports.library;
+
+alias x = __traits(getMember, imports.library, "SomeEnum");