From d00da05ecbeca36e8ca25dcb1238bf98b38081a5 Mon Sep 17 00:00:00 2001
From: Veikka Tuominen <git@vexu.eu>
Date: Mon, 11 Jul 2022 17:54:53 +0300
Subject: Sema: validate extern types

---
 src/type.zig | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

(limited to 'src/type.zig')

diff --git a/src/type.zig b/src/type.zig
index f14ad3a85b..765f1da18c 100644
--- a/src/type.zig
+++ b/src/type.zig
@@ -3935,7 +3935,6 @@ pub const Type = extern union {
 
     /// Returns true if the type is optional and would be lowered to a single pointer
     /// address value, using 0 for null. Note that this returns true for C pointers.
-    /// See also `hasOptionalRepr`.
     pub fn isPtrLikeOptional(self: Type) bool {
         switch (self.tag()) {
             .optional_single_const_pointer,
@@ -4630,6 +4629,14 @@ pub const Type = extern union {
         };
     }
 
+    /// Asserts the type is a function.
+    pub fn fnCallingConventionAllowsZigTypes(self: Type) bool {
+        return switch (self.fnCallingConvention()) {
+            .Unspecified, .Async, .Inline, .PtxKernel => true,
+            else => false,
+        };
+    }
+
     /// Asserts the type is a function.
     pub fn fnIsVarArgs(self: Type) bool {
         return switch (self.tag()) {
-- 
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