Remove usages of extern crate syntax.

src/designspace.rs

@@ -2,7 +2,7 @@
 
 #![deny(rustdoc::broken_intra_doc_links)]
 
-use serde::Serialize;
+use serde::{Deserialize, Serialize};
 use std::{fs::File, io::BufReader, path::Path};
 
 use plist::Dictionary;

src/font.rs

@@ -5,6 +5,9 @@
 use std::fs;
 use std::path::{Path, PathBuf};
 
+use serde::{Deserialize, Serialize};
+use serde_repr::{Deserialize_repr, Serialize_repr};
+
 use crate::data_request::LayerFilter;
 use crate::datastore::{DataStore, ImageStore};
 use crate::error::{FontLoadError, FontWriteError};

src/fontinfo.rs

@@ -8,6 +8,7 @@ use std::{collections::HashSet, convert::TryFrom, ops::Deref};
 use serde::de::Deserializer;
 use serde::ser::{SerializeSeq, Serializer};
 use serde::{Deserialize, Serialize};
+use serde_repr::{Deserialize_repr, Serialize_repr};
 
 use crate::error::{ExpectedPositiveValue, FontInfoErrorKind, FontInfoLoadError};
 use crate::shared_types::PUBLIC_OBJECT_LIBS_KEY;

src/glyph/codepoints.rs

@@ -4,6 +4,7 @@
 //! however we don't want this to be part of our public API, so use a wrapper.
 
 use indexmap::IndexSet;
+use serde::{Deserialize, Serialize};
 
 /// A set of Unicode codepoints
 #[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq)]

src/guideline.rs

@@ -1,6 +1,6 @@
-use serde::de::{Deserialize, Deserializer};
-use serde::ser::{Serialize, SerializeStruct, Serializer};
-use serde::{de, ser};
+use serde::de::Deserializer;
+use serde::ser::{SerializeStruct, Serializer};
+use serde::{de, ser, Deserialize, Serialize};
 
 use crate::{Color, Identifier, Name, Plist};
 

src/layer.rs

@@ -5,6 +5,8 @@ use std::path::{Path, PathBuf};
 #[cfg(feature = "rayon")]
 use rayon::prelude::*;
 
+use serde::Deserialize;
+
 use crate::data_request::LayerFilter;
 use crate::error::{FontLoadError, LayerLoadError, LayerWriteError, NamingError};
 use crate::names::NameList;

src/lib.rs

@@ -65,11 +65,6 @@
 #![warn(missing_docs)]
 #![deny(rustdoc::broken_intra_doc_links, unsafe_code)]
 
-#[macro_use]
-extern crate serde_derive;
-#[macro_use]
-extern crate serde_repr;
-
 mod data_request;
 pub mod datastore;
 pub mod designspace;

src/name.rs

@@ -3,7 +3,7 @@
 use std::str::FromStr;
 use std::sync::Arc;
 
-use serde::{Deserialize, Deserializer};
+use serde::{Deserialize, Deserializer, Serialize};
 
 use crate::error::NamingError;
 

src/upconversion.rs

@@ -1,6 +1,8 @@
 use std::collections::{BTreeMap, HashMap, HashSet};
 use std::path::Path;
 
+use serde::Deserialize;
+
 use crate::error::FontLoadError;
 use crate::font::LIB_FILE;
 use crate::fontinfo::FontInfo;
@@ -216,8 +218,6 @@ pub(crate) fn upconvert_ufov1_robofab_data(
 
 #[cfg(test)]
 mod tests {
-    extern crate maplit;
-
     use super::*;
     use crate::{
         font::{Font, FormatVersion},