fix Issue 17495 - __traits(getParameterStorageClasses) doesn't work w…

…ith tuples as parameters
dlang · Jun 12, 2017 · bb9d0d0 · bb9d0d0
1 parent cb54f4c
commit bb9d0d0
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Showing 2 changed files with 15 additions and 2 deletions.
diff --git a/src/ddmd/traits.d b/src/ddmd/traits.d
@@ -1021,9 +1021,9 @@ extern (C++) Expression semanticTraits(TraitsExp e, Scope* sc)
         }
         ex = ex.ctfeInterpret();
         auto ii = ex.toUInteger();
-        if (ii >= fparams.dim)
+        if (ii >= Parameter.dim(fparams))
         {
-            e.error("parameter index must be in range 0..%u not %s", cast(uint)fparams.dim, ex.toChars());
+            e.error("parameter index must be in range 0..%u not %s", cast(uint)Parameter.dim(fparams), ex.toChars());
             return new ErrorExp();
         }
 

diff --git a/test/runnable/traits.d b/test/runnable/traits.d
@@ -1514,6 +1514,19 @@ void test12237()
 
 /********************************************************/
 
+void async(ARGS...)(ARGS)
+{
+        static void compute(ARGS)
+        {
+        }
+
+        auto x = __traits(getParameterStorageClasses, compute, 1);
+}
+
+alias test17495 = async!(int, int);
+
+/********************************************************/
+
 int main()
 {
     test1();