Rust: make things compile

Cargo.lock

@@ -684,6 +684,9 @@ checksum = "7ab85b9b05e3978cc9a9cf8fea7f01b494e1a09ed3037e16ba39edc7a29eb61a"
 name = "generate-schema"
 version = "0.1.0"
 dependencies = [
+ "itertools 0.10.5",
+ "proc-macro2",
+ "quote",
  "ungrammar",
 ]
 
@@ -856,6 +859,15 @@ version = "1.70.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7943c866cc5cd64cbc25b2e01621d07fa8eb2a1a23160ee81ce38704e97b8ecf"
 
+[[package]]
+name = "itertools"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
+dependencies = [
+ "either",
+]
+
 [[package]]
 name = "itertools"
 version = "0.12.1"

rust/generate-schema/src/codegen.rs

@@ -0,0 +1,17 @@
+pub mod grammar;
+
+pub fn reformat(x: String) -> String {
+    x
+}
+
+pub fn add_preamble(_x: crate::flags::CodegenType, y: String) -> String {
+    y
+}
+pub fn ensure_file_contents(
+    _x: crate::flags::CodegenType,
+    path: &std::path::Path,
+    contents: &String,
+    _check: bool,
+) {
+    std::fs::write(path, contents).expect("Unable to write file");
+}

rust/generate-schema/src/flags.rs

@@ -0,0 +1,11 @@
+use std::fmt::Display;
+
+pub enum CodegenType {
+    Grammar,
+}
+
+impl Display for CodegenType {
+    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        write!(f, "Grammar")
+    }
+}

rust/generate-schema/src/main.rs

@@ -0,0 +1,12 @@
+use std::path::PathBuf;
+
+mod codegen;
+mod flags;
+use std::env;
+
+fn project_root() -> PathBuf {
+    let dir =
+        env::var("CARGO_MANIFEST_DIR").unwrap_or_else(|_| env!("CARGO_MANIFEST_DIR").to_owned());
+    PathBuf::from(dir).parent().unwrap().to_owned()
+}
+fn main() {}