refactor: make only top level codegen is public and CodeGen private

src/generator.rs

@@ -120,7 +120,13 @@ mod util {
     }
 }
 
-pub trait CodeGen {
+impl Module {
+    pub fn generate_code(self) -> Result<HashMap<path::PathBuf, proc_macro2::TokenStream>, CodeGenError> {
+        self.generate_register_interface(None, None, HashMap::new())
+    }
+}
+
+trait CodeGen {
     /// `parent_name` in UpperCamelCase.
     fn generate_register_interface(
         self,

src/main.rs

@@ -1,9 +1,9 @@
 use std::fs::DirBuilder;
 use std::io::Write;
-use std::{collections::HashMap, fs, io::BufWriter};
+use std::{fs, io::BufWriter};
 
 use anyhow::{anyhow, Context, Result};
-use endcap_sl_software_ri_generator::{generator::CodeGen, types};
+use endcap_sl_software_ri_generator::types;
 use itertools::Itertools;
 
 fn main() -> Result<()> {
@@ -26,7 +26,7 @@ fn main() -> Result<()> {
 
     println!("===========================================");
 
-    let files = register_map.generate_register_interface(None, None, HashMap::new())?;
+    let files = register_map.generate_code()?;
     // println!("{:#?}", files);
     for filepath in files.keys().sorted() {
         println!("{}", filepath.display());