transpile: Translate EnumConstant with associated constants

c2rust-ast-builder/src/builder.rs

@@ -1416,6 +1416,26 @@ impl Builder {
         }))
     }
 
+    pub fn const_impl_item<I>(self, name: I, ty: Box<Type>, init: Box<Expr>) -> ImplItem
+    where
+        I: Make<Ident>,
+    {
+        let name = name.make(&self);
+        ImplItem::Const(ImplItemConst {
+            attrs: self.attrs,
+            vis: self.vis,
+            defaultness: None,
+            const_token: Token![const](self.span),
+            ident: name,
+            generics: self.generics,
+            colon_token: Token![:](self.span),
+            ty: *ty,
+            eq_token: Token![=](self.span),
+            expr: *init,
+            semi_token: Token![;](self.span),
+        })
+    }
+
     pub fn fn_item<S>(self, sig: S, mut block: Block) -> Box<Item>
     where
         S: Make<Signature>,

c2rust-transpile/src/lib.rs

@@ -37,7 +37,7 @@ use c2rust_ast_exporter as ast_exporter;
 
 use crate::build_files::{emit_build_files, get_build_dir, CrateConfig};
 use crate::compile_cmds::get_compile_commands;
-pub use crate::translator::ReplaceMode;
+pub use crate::translator::{EnumMode, ReplaceMode};
 use std::prelude::v1::Vec;
 
 type PragmaVec = Vec<(&'static str, Vec<&'static str>)>;
@@ -108,6 +108,7 @@ pub struct TranspilerConfig {
     pub log_level: log::LevelFilter,
     pub edition: RustEdition,
     pub deny_unsafe_op_in_unsafe_fn: bool,
+    pub enum_mode: EnumMode,
 
     /// Run `c2rust-postprocess` after transpiling and potentially refactoring.
     pub postprocess: bool,