Add toggle for prepending enum name to variant

Currently the name of a enum is always prepended to the beginning of a const or bitfield like variant. This can result in some quite unintuivite naming, if the library already prefixes its variants. For example hundreds of variants are named like this `cs_arch_CS_ARCH_ARM` when binding to the capstone library.

This commit introduces a toggle for prepending the `cs_arch_` part. By default it is enabled to preserve current behaviour. It can be toggled with the `prepend_enum_name` function on the Builder.

1 files changed, 7 insertions, 3 deletions

diff --git a/src/codegen/mod.rs b/src/codegen/mod.rs
index 46b0a3e7..120acefa 100644
--- a/src/codegen/mod.rs
+++ b/src/codegen/mod.rs
@@ -1993,10 +1993,14 @@ impl CodeGenerator for Enum {
             Some(item.parent_id().canonical_name(ctx))
         };
 
-        let constant_mangling_prefix = if enum_ty.name().is_none() {
-            parent_canonical_name.as_ref().map(|n| &*n)
+        let constant_mangling_prefix = if ctx.options().prepend_enum_name {
+            if enum_ty.name().is_none() {
+                parent_canonical_name.as_ref().map(|n| &*n)
+            } else {
+                Some(&name)
+            }
         } else {
-            Some(&name)
+            None
         };
 
         // NB: We defer the creation of constified variants, in case we find