From aec3fd070e94e8b36c4cd37b8748f62abf70492e Mon Sep 17 00:00:00 2001
From: Greg Shuflin <greg.shuflin@protonmail.com>
Date: Sun, 14 Nov 2021 03:44:48 -0800
Subject: [PATCH] Remove schala-codegen crate

---
 Cargo.lock                      |  9 ------
 schala-lang/codegen/Cargo.toml  | 13 --------
 schala-lang/codegen/src/lib.rs  | 53 ---------------------------------
 schala-lang/language/Cargo.toml |  1 -
 schala-lang/language/src/lib.rs |  1 -
 5 files changed, 77 deletions(-)
 delete mode 100644 schala-lang/codegen/Cargo.toml
 delete mode 100644 schala-lang/codegen/src/lib.rs

diff --git a/Cargo.lock b/Cargo.lock
index 3b4741d..8c7cdeb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -922,21 +922,12 @@ dependencies = [
  "peg",
  "pretty_assertions",
  "radix_trie",
- "schala-lang-codegen",
  "schala-repl",
  "stopwatch",
  "take_mut",
  "test-case",
 ]
 
-[[package]]
-name = "schala-lang-codegen"
-version = "0.1.0"
-dependencies = [
- "quote 0.6.13",
- "syn 0.15.44",
-]
-
 [[package]]
 name = "schala-repl"
 version = "0.1.0"
diff --git a/schala-lang/codegen/Cargo.toml b/schala-lang/codegen/Cargo.toml
deleted file mode 100644
index bf788c4..0000000
--- a/schala-lang/codegen/Cargo.toml
+++ /dev/null
@@ -1,13 +0,0 @@
-[package]
-name = "schala-lang-codegen"
-version = "0.1.0"
-authors = ["greg <greg.shuflin@protonmail.com>"]
-edition = "2018"
-resolver = "2"
-
-[lib]
-proc-macro = true
-
-[dependencies]
-syn = { version = "0.15.12", features = ["full", "extra-traits", "fold"] }
-quote = "0.6.8"
diff --git a/schala-lang/codegen/src/lib.rs b/schala-lang/codegen/src/lib.rs
deleted file mode 100644
index 38dd902..0000000
--- a/schala-lang/codegen/src/lib.rs
+++ /dev/null
@@ -1,53 +0,0 @@
-#![feature(box_patterns)]
-#![recursion_limit="128"]
-extern crate proc_macro;
-#[macro_use]
-extern crate quote;
-#[macro_use]
-extern crate syn;
-
-use self::proc_macro::TokenStream;
-use self::syn::fold::Fold;
-
-struct RecursiveDescentFn {
-}
-
-impl Fold for RecursiveDescentFn {
-  fn fold_item_fn(&mut self, mut i: syn::ItemFn) -> syn::ItemFn {
-    let box block = i.block;
-    let ident = &i.ident;
-
-    let new_block: syn::Block = parse_quote! {
-      {
-        let next_token_before_parse = self.token_handler.peek();
-        let record = ParseRecord {
-          production_name: stringify!(#ident).to_string(),
-          next_token: format!("{}", next_token_before_parse.to_string_with_metadata()),
-          level: self.parse_level,
-        };
-        self.parse_level += 1;
-        self.parse_record.push(record);
-        let result = { #block };
-
-        if self.parse_level != 0 {
-          self.parse_level -= 1;
-        }
-
-        result.map_err(|mut parse_error: ParseError| {
-          parse_error
-        })
-      }
-    };
-    i.block = Box::new(new_block);
-    i
-  }
-}
-
-#[proc_macro_attribute]
-pub fn recursive_descent_method(_attr: TokenStream, item: TokenStream) -> TokenStream {
-
-  let input: syn::ItemFn = parse_macro_input!(item as syn::ItemFn);
-  let mut folder = RecursiveDescentFn {};
-  let output = folder.fold_item_fn(input);
-  TokenStream::from(quote!(#output))
-}
diff --git a/schala-lang/language/Cargo.toml b/schala-lang/language/Cargo.toml
index 94026da..bd8b08f 100644
--- a/schala-lang/language/Cargo.toml
+++ b/schala-lang/language/Cargo.toml
@@ -18,7 +18,6 @@ assert_matches = "1.5"
 peg = { git = "https://github.com/kevinmehall/rust-peg", rev = "960222580c8da25b17d32c2aae6f52f902728b62" }
 
 
-schala-lang-codegen = { path = "../codegen" }
 schala-repl = { path = "../../schala-repl" }
 
 [dev-dependencies]
diff --git a/schala-lang/language/src/lib.rs b/schala-lang/language/src/lib.rs
index 966facf..d208b6c 100644
--- a/schala-lang/language/src/lib.rs
+++ b/schala-lang/language/src/lib.rs
@@ -7,7 +7,6 @@
 //! `ProgrammingLanguageInterface` and the chain of compiler passes for it.
 
 extern crate derivative;
-extern crate schala_lang_codegen;
 extern crate schala_repl;
 
 #[macro_use]