From 42d460f3a67ef5fdcf072d30a7751c1bd975272e Mon Sep 17 00:00:00 2001
From: Pat Hickey <phickey@fastly.com>
Date: Fri, 7 Oct 2022 16:36:27 -0700
Subject: [PATCH] wasmtime-component-macro: struct and consts created for
 flags! must be pub (#5030)

* wasmtime-component-macro: struct and consts created for flags! must be pub

* addd empty and all constructors to flags
---
 crates/component-macro/src/lib.rs | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/crates/component-macro/src/lib.rs b/crates/component-macro/src/lib.rs
index 77b9aa9934..0524ef2600 100644
--- a/crates/component-macro/src/lib.rs
+++ b/crates/component-macro/src/lib.rs
@@ -1081,7 +1081,7 @@ fn expand_flags(flags: &Flags) -> Result<TokenStream> {
 
         let name = format_ident!("{}", name);
 
-        constants.extend(quote!(const #name: Self = Self { #fields };));
+        constants.extend(quote!(pub const #name: Self = Self { #fields };));
     }
 
     let generics = syn::Generics {
@@ -1128,14 +1128,23 @@ fn expand_flags(flags: &Flags) -> Result<TokenStream> {
 
     let expanded = quote! {
         #[derive(Copy, Clone, Default)]
-        struct #name { #fields }
+        pub struct #name { #fields }
 
         impl #name {
             #constants
 
-            fn as_array(&self) -> [u32; #count] {
+            pub fn as_array(&self) -> [u32; #count] {
                 #as_array
             }
+
+            pub fn empty() -> Self {
+                Self::default()
+            }
+
+            pub fn all() -> Self {
+                use std::ops::Not;
+                Self::default().not()
+            }
         }
 
         impl std::cmp::PartialEq for #name {