From a2517117e7cffcc4be21e944f2b4f8661c8f15a3 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Fri, 11 Mar 2022 12:59:20 -0700
Subject: Sema: make `@hasField` support tuples too

---
 src/Sema.zig | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/Sema.zig')

diff --git a/src/Sema.zig b/src/Sema.zig
index 41ca123062..ac43ef76b3 100644
--- a/src/Sema.zig
+++ b/src/Sema.zig
@@ -7795,6 +7795,10 @@ fn zirHasField(sema: *Sema, block: *Block, inst: Zir.Inst.Index) CompileError!Ai
                 if (mem.eql(u8, name, field_name)) break true;
             } else false;
         }
+        if (ty.isTuple()) {
+            const field_index = std.fmt.parseUnsigned(u32, field_name, 10) catch break :hf false;
+            break :hf field_index < ty.structFieldCount();
+        }
         break :hf switch (ty.zigTypeTag()) {
             .Struct => ty.structFields().contains(field_name),
             .Union => ty.unionFields().contains(field_name),
-- 
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