From d4ec4e08738f5ee855dddc8e8e3b8758d1c10020 Mon Sep 17 00:00:00 2001
From: Charlie Marsh <charlie.r.marsh@gmail.com>
Date: Mon, 19 Jun 2023 16:25:00 -0400
Subject: [PATCH] Make malachite-bigint an optional dependency for
 rustpython-format

---
 format/Cargo.toml     | 3 ++-
 format/src/cformat.rs | 3 ++-
 format/src/format.rs  | 7 ++++---
 format/src/lib.rs     | 9 +++++++--
 4 files changed, 15 insertions(+), 7 deletions(-)

diff --git a/format/Cargo.toml b/format/Cargo.toml
index 7a9db255..a9185b5a 100644
--- a/format/Cargo.toml
+++ b/format/Cargo.toml
@@ -12,5 +12,6 @@ rustpython-literal = { workspace = true }
 
 bitflags = "2.3.1"
 itertools = "0.10.5"
-malachite-bigint = { workspace = true }
 num-traits = { workspace = true }
+num-bigint = { workspace = true, optional = true }
+malachite-bigint = { workspace = true, optional = true }
diff --git a/format/src/cformat.rs b/format/src/cformat.rs
index a207857e..d835fda0 100644
--- a/format/src/cformat.rs
+++ b/format/src/cformat.rs
@@ -1,7 +1,6 @@
 //! Implementation of Printf-Style string formatting
 //! as per the [Python Docs](https://docs.python.org/3/library/stdtypes.html#printf-style-string-formatting).
 use bitflags::bitflags;
-use malachite_bigint::{BigInt, Sign};
 use num_traits::Signed;
 use rustpython_literal::{float, format::Case};
 use std::{
@@ -10,6 +9,8 @@ use std::{
     str::FromStr,
 };
 
+use crate::bigint::{BigInt, Sign};
+
 #[derive(Debug, PartialEq)]
 pub enum CFormatErrorType {
     UnmatchedKeyParentheses,
diff --git a/format/src/format.rs b/format/src/format.rs
index 09cc3d1a..6bc5796e 100644
--- a/format/src/format.rs
+++ b/format/src/format.rs
@@ -1,12 +1,13 @@
 use itertools::{Itertools, PeekingNext};
-use malachite_bigint::{BigInt, Sign};
-use num_traits::FromPrimitive;
-use num_traits::{cast::ToPrimitive, Signed};
+
+use num_traits::{cast::ToPrimitive, FromPrimitive, Signed};
 use rustpython_literal::float;
 use rustpython_literal::format::Case;
 use std::ops::Deref;
 use std::{cmp, str::FromStr};
 
+use crate::bigint::{BigInt, Sign};
+
 trait FormatParse {
     fn parse(text: &str) -> (Option<Self>, &str)
     where
diff --git a/format/src/lib.rs b/format/src/lib.rs
index 3c5d8695..d3833c18 100644
--- a/format/src/lib.rs
+++ b/format/src/lib.rs
@@ -1,4 +1,9 @@
-pub mod cformat;
-mod format;
+#[cfg(feature = "malachite-bigint")]
+pub use malachite_bigint as bigint;
+#[cfg(feature = "num-bigint")]
+pub use num_bigint as bigint;
 
 pub use crate::format::*;
+
+pub mod cformat;
+mod format;