From fff0cf3f41e5dd3157e0c5790b0e12e43fb8099b Mon Sep 17 00:00:00 2001
From: Luca Barbato <lu_zero@gentoo.org>
Date: Fri, 26 Nov 2021 14:31:05 +0100
Subject: [PATCH] Remove enum_iterator

It is used only in mk_enum and the macro knows already its variants so
it can be manually implemented.
---
 Cargo.lock             | 21 ---------------------
 Cargo.toml             |  1 -
 enums/src/go.rs        |  1 -
 enums/src/json.rs      |  1 -
 enums/src/languages.rs |  1 -
 enums/src/lib.rs       |  1 -
 enums/src/rust.rs      |  1 -
 src/langs.rs           |  1 -
 src/macros.rs          |  8 +++++++-
 9 files changed, 7 insertions(+), 29 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index cffe4d8e0..41cd1cfcb 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -692,26 +692,6 @@ dependencies = [
  "syn",
 ]
 
-[[package]]
-name = "enum-iterator"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4eeac5c5edb79e4e39fe8439ef35207780a11f69c52cbe424ce3dfad4cb78de6"
-dependencies = [
- "enum-iterator-derive",
-]
-
-[[package]]
-name = "enum-iterator-derive"
-version = "0.7.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c134c37760b27a871ba422106eedbb8247da973a09e82558bf26d619c882b159"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "fixedbitset"
 version = "0.4.0"
@@ -1600,7 +1580,6 @@ name = "rust-code-analysis"
 version = "0.0.23"
 dependencies = [
  "aho-corasick",
- "enum-iterator",
  "fxhash",
  "lazy_static",
  "num",
diff --git a/Cargo.toml b/Cargo.toml
index 9e98bc638..5282f600c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,6 @@ license = "MPL-2.0"
 
 [dependencies]
 aho-corasick = "^0.7"
-enum-iterator = "^0.7"
 fxhash = "0.2"
 lazy_static = "^1.3"
 num-format = "^0.4"
diff --git a/enums/src/go.rs b/enums/src/go.rs
index 7f6a57762..d69d227e2 100644
--- a/enums/src/go.rs
+++ b/enums/src/go.rs
@@ -1,5 +1,4 @@
 use askama::Template;
-use enum_iterator::IntoEnumIterator;
 use std::fs::File;
 use std::io::Write;
 use std::path::PathBuf;
diff --git a/enums/src/json.rs b/enums/src/json.rs
index 906f73dc1..cf9843870 100644
--- a/enums/src/json.rs
+++ b/enums/src/json.rs
@@ -1,5 +1,4 @@
 use askama::Template;
-use enum_iterator::IntoEnumIterator;
 use std::fs::File;
 use std::io::Write;
 use std::path::PathBuf;
diff --git a/enums/src/languages.rs b/enums/src/languages.rs
index 73ed6e343..c5a105352 100644
--- a/enums/src/languages.rs
+++ b/enums/src/languages.rs
@@ -1,4 +1,3 @@
-use enum_iterator::IntoEnumIterator;
 use tree_sitter::Language;
 
 use crate::*;
diff --git a/enums/src/lib.rs b/enums/src/lib.rs
index 70c724164..5778236e4 100644
--- a/enums/src/lib.rs
+++ b/enums/src/lib.rs
@@ -1,5 +1,4 @@
 extern crate askama;
-extern crate enum_iterator;
 extern crate tree_sitter;
 
 #[macro_use]
diff --git a/enums/src/rust.rs b/enums/src/rust.rs
index ad13f6686..22fdd5bc0 100644
--- a/enums/src/rust.rs
+++ b/enums/src/rust.rs
@@ -1,5 +1,4 @@
 use askama::Template;
-use enum_iterator::IntoEnumIterator;
 use std::env;
 use std::fs::File;
 use std::io::{Read, Write};
diff --git a/src/langs.rs b/src/langs.rs
index 9217bbc5c..9eb4fca82 100644
--- a/src/langs.rs
+++ b/src/langs.rs
@@ -1,4 +1,3 @@
-use enum_iterator::IntoEnumIterator;
 use std::path::Path;
 use std::sync::Arc;
 use tree_sitter::Language;
diff --git a/src/macros.rs b/src/macros.rs
index 6bdeecdb5..f12e517a8 100644
--- a/src/macros.rs
+++ b/src/macros.rs
@@ -46,13 +46,19 @@ macro_rules! get_language {
 macro_rules! mk_enum {
     ( $( $camel:ident, $description:expr ),* ) => {
         /// The list of supported languages.
-        #[derive(Clone, Copy, Debug, IntoEnumIterator, PartialEq)]
+        #[derive(Clone, Copy, Debug, PartialEq)]
         pub enum LANG {
             $(
                 #[doc = $description]
                 $camel,
             )*
         }
+        impl LANG {
+            pub fn into_enum_iter() -> impl Iterator<Item=LANG> {
+                use LANG::*;
+                [$( $camel, )*].into_iter()
+            }
+        }
     };
 }