Auto merge of #1272 - tmfink:issue-1198, r=emilio

Declare precedence on enum types

Fixes issue #1198 where an enum matches the pattern for multiple enum types, such as constified module enum AND rustified enum.

Documents precedence in `Builder` doc comment.

1 files changed, 4 insertions, 2 deletions

diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs
index a6ab3997..cf1a4f3b 100644
--- a/src/codegen/mod.rs
+++ b/src/codegen/mod.rs
@@ -2477,12 +2477,14 @@ impl CodeGenerator for Enum {
             }
         };
 
+        // ModuleConsts has higher precedence before Rust in order to avoid problems with
+        // overlapping match patterns
         let variation = if self.is_bitfield(ctx, item) {
             EnumVariation::Bitfield
-        } else if self.is_rustified_enum(ctx, item) {
-            EnumVariation::Rust
         } else if self.is_constified_enum_module(ctx, item) {
             EnumVariation::ModuleConsts
+        } else if self.is_rustified_enum(ctx, item) {
+            EnumVariation::Rust
         } else {
             // We generate consts by default
             EnumVariation::Consts