From: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date: Wed, 18 Oct 2023 13:04:58 +0000 (+0200)
Subject: gccrs: Add a function to check if a function is variadic
X-Git-Tag: basepoints/gcc-15~2012
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=41f480d16d3c6cc1e901d2ae3fcd4a9b5706aa51;p=thirdparty%2Fgcc.git

gccrs: Add a function to check if a function is variadic

This function provides an easy way to check for a function's varidicity.

gcc/rust/ChangeLog:

	* ast/rust-item.h: Add a getter to check if a given function is
	variadic.

Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
---

diff --git a/gcc/rust/ast/rust-item.h b/gcc/rust/ast/rust-item.h
index 38d8b53a43ca..109680a1d78d 100644
--- a/gcc/rust/ast/rust-item.h
+++ b/gcc/rust/ast/rust-item.h
@@ -1682,6 +1682,12 @@ public:
 
   void accept_vis (ASTVisitor &vis) override;
 
+  bool is_variadic () const
+  {
+    return function_params.size () != 0
+	   && function_params.back ().is_variadic ();
+  }
+
   // Invalid if block is null, so base stripping on that.
   void mark_for_strip () override { function_body = nullptr; }
   bool is_marked_for_strip () const override