From 7c4cf38110c51bfcf2445c901f14eedfffbaa003 Mon Sep 17 00:00:00 2001
From: Tony Garnock-Jones <tonyg@leastfixedpoint.com>
Date: Wed, 30 Jun 2021 15:55:42 +0200
Subject: [PATCH] snake_case for module names

---
 implementations/rust/preserves-schema/src/compiler/context.rs | 3 ++-
 implementations/rust/preserves-schema/src/compiler/mod.rs     | 3 ++-
 implementations/rust/preserves-schema/src/compiler/names.rs   | 4 ++++
 3 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/implementations/rust/preserves-schema/src/compiler/context.rs b/implementations/rust/preserves-schema/src/compiler/context.rs
index cbf0d2d..87ac2e9 100644
--- a/implementations/rust/preserves-schema/src/compiler/context.rs
+++ b/implementations/rust/preserves-schema/src/compiler/context.rs
@@ -6,6 +6,7 @@ use crate::gen::schema::*;
 use preserves::value::Map;
 
 use super::CompilerConfig;
+use super::names;
 use super::types;
 
 pub struct ModuleContext<'m> {
@@ -59,7 +60,7 @@ impl<'m> ModuleContext<'m> {
                 } else {
                     let mut items = Vec::new();
                     items.push(item(self.config.fully_qualified_module_prefix.to_owned()));
-                    for p in &r.module.0 { items.push(item(p.to_owned())); }
+                    for p in &r.module.0 { items.push(item(names::render_modname(p))) }
                     items.push(item(r.name.to_owned()));
                     item(name(items))
                 }
diff --git a/implementations/rust/preserves-schema/src/compiler/mod.rs b/implementations/rust/preserves-schema/src/compiler/mod.rs
index 3431f8d..ec1ef54 100644
--- a/implementations/rust/preserves-schema/src/compiler/mod.rs
+++ b/implementations/rust/preserves-schema/src/compiler/mod.rs
@@ -95,8 +95,9 @@ pub fn compile(config: &CompilerConfig) -> Result<(), std::io::Error> {
     for (k, v) in config.bundle.iter() {
         let mut output_path = config.output_dir.clone();
         output_path.extend(k);
-        output_path.set_extension("rs");
         let module_name = output_path.file_stem().unwrap().to_str().unwrap().to_owned();
+        let module_name = names::render_modname(&module_name);
+        output_path.set_file_name(format!("{}.rs", module_name));
         DirBuilder::new().recursive(true).create(output_path.parent().unwrap())?;
         let mut m = context::ModuleContext::new(config);
 
diff --git a/implementations/rust/preserves-schema/src/compiler/names.rs b/implementations/rust/preserves-schema/src/compiler/names.rs
index f2b938c..174f05f 100644
--- a/implementations/rust/preserves-schema/src/compiler/names.rs
+++ b/implementations/rust/preserves-schema/src/compiler/names.rs
@@ -7,3 +7,7 @@ pub fn render_constructor(n: &str) -> String {
 pub fn render_fieldname(n: &str) -> String {
     n.to_case(Case::Snake)
 }
+
+pub fn render_modname(n: &str) -> String {
+    n.to_case(Case::Snake)
+}