From 77bf42be6cf1329ee3089bc1af2bad6f8cda671f Mon Sep 17 00:00:00 2001
From: Greg Shuflin <greg.shuflin@protonmail.com>
Date: Thu, 7 Oct 2021 00:51:45 -0700
Subject: [PATCH] Update to current rust

---
 Cargo.lock                                | 697 +++++++++++-----------
 schala-lang/language/Cargo.toml           |   2 +-
 schala-lang/language/src/eval.rs          |   2 -
 schala-lang/language/src/lib.rs           |   2 +-
 schala-lang/language/src/schala.rs        |   2 +-
 schala-lang/language/src/tokenizing.rs    |   3 +-
 schala-repl/Cargo.toml                    |   2 +-
 schala-repl/src/lib.rs                    |   3 +-
 schala-repl/src/repl/directive_actions.rs |   1 -
 9 files changed, 350 insertions(+), 364 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 4745d31..c70e141 100644
--- a/Cargo.lock
+++ b/Cargo.lock
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diff --git a/schala-lang/language/Cargo.toml b/schala-lang/language/Cargo.toml
index 3a71603..318c4fe 100644
--- a/schala-lang/language/Cargo.toml
+++ b/schala-lang/language/Cargo.toml
@@ -5,7 +5,7 @@ authors = ["greg <greg.shuflin@protonmail.com>"]
 edition = "2018"
 
 [dependencies]
-itertools = "0.8.0"
+itertools = "0.10"
 take_mut = "0.2.2"
 maplit = "1.0.1"
 lazy_static = "1.3.0"
diff --git a/schala-lang/language/src/eval.rs b/schala-lang/language/src/eval.rs
index 81005d0..3f52292 100644
--- a/schala-lang/language/src/eval.rs
+++ b/schala-lang/language/src/eval.rs
@@ -2,8 +2,6 @@ use std::rc::Rc;
 use std::fmt::Write;
 use std::io;
 
-use itertools::Itertools;
-
 use crate::schala::SymbolTableHandle;
 use crate::util::ScopeStack;
 use crate::reduced_ast::{BoundVars, ReducedAST, Stmt, Expr, Lit, Func, Alternative, Subpattern};
diff --git a/schala-lang/language/src/lib.rs b/schala-lang/language/src/lib.rs
index dfc32de..1a61bcf 100644
--- a/schala-lang/language/src/lib.rs
+++ b/schala-lang/language/src/lib.rs
@@ -1,6 +1,6 @@
 #![feature(trace_macros)]
 //#![feature(unrestricted_attribute_tokens)]
-#![feature(slice_patterns, box_patterns, box_syntax)]
+#![feature(box_patterns, box_syntax)]
 
 //! `schala-lang` is where the Schala programming language is actually implemented. 
 //! It defines the `Schala` type, which contains the state for a Schala REPL, and implements
diff --git a/schala-lang/language/src/schala.rs b/schala-lang/language/src/schala.rs
index a5a41e2..ae6466e 100644
--- a/schala-lang/language/src/schala.rs
+++ b/schala-lang/language/src/schala.rs
@@ -195,7 +195,7 @@ fn eval(input: reduced_ast::ReducedAST, handle: &mut Schala, comp: Option<&mut P
     .collect();
 
   let eval_output: Result<String, String> = text_output
-    .map(|v| { v.into_iter().intersperse(format!("\n")).collect() });
+    .map(|v| { Iterator::intersperse(v.into_iter(), "\n".to_owned()).collect() });
   eval_output
 }
 
diff --git a/schala-lang/language/src/tokenizing.rs b/schala-lang/language/src/tokenizing.rs
index edf5123..28f4a8e 100644
--- a/schala-lang/language/src/tokenizing.rs
+++ b/schala-lang/language/src/tokenizing.rs
@@ -123,8 +123,7 @@ type CharData = (usize, usize, char);
 pub fn tokenize(input: &str) -> Vec<Token> {
   let mut tokens: Vec<Token> = Vec::new();
 
-  let mut input = input.lines().enumerate()
-      .intersperse((0, "\n"))
+  let mut input = Iterator::intersperse(input.lines().enumerate(), (0, "\n"))
       .flat_map(|(line_idx, ref line)| {
           line.chars().enumerate().map(move |(ch_idx, ch)| (line_idx, ch_idx, ch))
       })
diff --git a/schala-repl/Cargo.toml b/schala-repl/Cargo.toml
index c514b4b..2eb75b2 100644
--- a/schala-repl/Cargo.toml
+++ b/schala-repl/Cargo.toml
@@ -7,7 +7,7 @@ edition = "2018"
 [dependencies]
 llvm-sys = "70.0.2"
 take_mut = "0.2.2"
-itertools = "0.5.8"
+itertools = "0.10"
 getopts = "0.2.18"
 lazy_static = "0.2.8"
 maplit = "*"
diff --git a/schala-repl/src/lib.rs b/schala-repl/src/lib.rs
index 69f6c1d..528740e 100644
--- a/schala-repl/src/lib.rs
+++ b/schala-repl/src/lib.rs
@@ -1,5 +1,4 @@
-#![feature(link_args)]
-#![feature(slice_patterns, box_patterns, box_syntax, proc_macro_hygiene, decl_macro)]
+#![feature(box_patterns, box_syntax, proc_macro_hygiene, decl_macro)]
 #![feature(plugin)]
 extern crate getopts;
 extern crate linefeed;
diff --git a/schala-repl/src/repl/directive_actions.rs b/schala-repl/src/repl/directive_actions.rs
index f0da969..338e979 100644
--- a/schala-repl/src/repl/directive_actions.rs
+++ b/schala-repl/src/repl/directive_actions.rs
@@ -1,7 +1,6 @@
 use super::{Repl, InterpreterDirectiveOutput};
 use crate::repl::help::help;
 use crate::language::{LangMetaRequest, LangMetaResponse, DebugAsk, DebugResponse}; 
-use itertools::Itertools;
 use std::fmt::Write as FmtWrite;
 
 #[derive(Debug, Clone)]