From 91efc5c98bb32f3b1d42895362d5ae5a175a1345 Mon Sep 17 00:00:00 2001
From: Andrew Kelley <andrew@ziglang.org>
Date: Wed, 18 Dec 2024 16:43:14 -0800
Subject: wasm linker: fix calling imported functions

and more disciplined type safety for output function indexes
---
 src/InternPool.zig | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'src/InternPool.zig')

diff --git a/src/InternPool.zig b/src/InternPool.zig
index 2a21be9bbe..a43c5a7d3a 100644
--- a/src/InternPool.zig
+++ b/src/InternPool.zig
@@ -620,6 +620,14 @@ pub const Nav = struct {
         };
     }
 
+    /// Asserts that `status == .resolved`.
+    pub fn toExtern(nav: *const Nav, ip: *const InternPool) ?Key.Extern {
+        return switch (ip.indexToKey(nav.status.resolved.val)) {
+            .@"extern" => |ext| ext,
+            else => null,
+        };
+    }
+
     /// Asserts that `status == .resolved`.
     pub fn isThreadLocal(nav: Nav, ip: *const InternPool) bool {
         const val = nav.status.resolved.val;
-- 
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