stage2: implement Sema for elemVal for comptime slice

1 files changed, 21 insertions, 0 deletions

diff --git a/test/behavior/slice.zig b/test/behavior/slice.zig
index 168754381a..5dc652d678 100644
--- a/test/behavior/slice.zig
+++ b/test/behavior/slice.zig
@@ -3,3 +3,24 @@ const expect = std.testing.expect;
 const expectEqualSlices = std.testing.expectEqualSlices;
 const expectEqual = std.testing.expectEqual;
 const mem = std.mem;
+
+// comptime array passed as slice argument
+comptime {
+    const S = struct {
+        fn indexOfScalarPos(comptime T: type, slice: []const T, start_index: usize, value: T) ?usize {
+            var i: usize = start_index;
+            while (i < slice.len) : (i += 1) {
+                if (slice[i] == value) return i;
+            }
+            return null;
+        }
+
+        fn indexOfScalar(comptime T: type, slice: []const T, value: T) ?usize {
+            return indexOfScalarPos(T, slice, 0, value);
+        }
+    };
+    const unsigned = [_]type{ c_uint, c_ulong, c_ulonglong };
+    const list: []const type = &unsigned;
+    var pos = S.indexOfScalar(type, list, c_ulong).?;
+    if (pos != 1) @compileError("bad pos");
+}