fix Issue 18030 - Segmentation fault with __traits(getProtection) on …

…template function
dlang · Dec 30, 2017 · 08aca45 · 08aca45
1 parent de3563f
commit 08aca45
Show file tree

Hide file tree

Showing 2 changed files with 27 additions and 0 deletions.
diff --git a/src/dmd/dsymbolsem.d b/src/dmd/dsymbolsem.d
@@ -151,6 +151,7 @@ const(char)* getMessage(DeprecatedDeclaration dd)
     return dd.msgstr;
 }
 
+
 // Returns true if a contract can appear without a function body.
 package bool allowsContractWithoutBody(FuncDeclaration funcdecl)
 {
@@ -2074,6 +2075,14 @@ private extern(C++) final class DsymbolSemanticVisitor : Visitor
         if (tempdecl.semanticRun != PASSinit)
             return; // semantic() already run
 
+        if (tempdecl._scope)
+        {
+            sc = tempdecl._scope;
+            tempdecl._scope = null;
+        }
+        if (!sc)
+            return;
+
         // Remember templates defined in module object that we need to know about
         if (sc._module && sc._module.ident == Id.object)
         {

diff --git a/test/compilable/test18030.d b/test/compilable/test18030.d
@@ -0,0 +1,18 @@
+// https://issues.dlang.org/show_bug.cgi?id=18030
+
+struct S(T)
+{
+	T var;
+	pragma(
+		msg,
+		"Inside S: func() is ",
+		__traits(getProtection, __traits(getMember, T, "func"))
+	);
+}
+
+class C
+{
+	alias Al = S!C;
+
+	static void func(U)(U var) { }
+}