From 6c162e6562c3e432bf04c82a3d1d789d80761a86 Mon Sep 17 00:00:00 2001 From: Eric Huss Date: Wed, 8 May 2019 17:37:38 -0700 Subject: 2018 edition idioms. --- examples/decode.rs | 4 +--- examples/enum_external.rs | 4 +--- examples/toml2json.rs | 3 --- src/datetime.rs | 22 +++++++++++----------- src/de.rs | 18 ++++++++---------- src/lib.rs | 14 +++----------- src/macros.rs | 5 +---- src/map.rs | 14 +++++++------- src/ser.rs | 24 ++++++++++-------------- src/spanned.rs | 7 ++----- src/tokens.rs | 10 +++++----- src/value.rs | 8 ++++---- 12 files changed, 53 insertions(+), 80 deletions(-) diff --git a/examples/decode.rs b/examples/decode.rs index e8ce586..b5d6a99 100644 --- a/examples/decode.rs +++ b/examples/decode.rs @@ -3,9 +3,7 @@ #![deny(warnings)] -extern crate toml; -#[macro_use] -extern crate serde_derive; +use serde_derive::Deserialize; /// This is what we're going to decode into. Each field is optional, meaning /// that it doesn't have to be present in TOML. diff --git a/examples/enum_external.rs b/examples/enum_external.rs index e2ac4f8..a7dd84a 100644 --- a/examples/enum_external.rs +++ b/examples/enum_external.rs @@ -3,9 +3,7 @@ #![deny(warnings)] -extern crate toml; -#[macro_use] -extern crate serde_derive; +use serde_derive::Deserialize; /// This is what we're going to decode into. #[derive(Debug, Deserialize)] diff --git a/examples/toml2json.rs b/examples/toml2json.rs index 12c3f1c..1b90c9f 100644 --- a/examples/toml2json.rs +++ b/examples/toml2json.rs @@ -1,8 +1,5 @@ #![deny(warnings)] -extern crate serde_json; -extern crate toml; - use std::env; use std::fs::File; use std::io; diff --git a/src/datetime.rs b/src/datetime.rs index b77621a..61eb3b1 100644 --- a/src/datetime.rs +++ b/src/datetime.rs @@ -65,13 +65,13 @@ enum Offset { } impl fmt::Debug for Datetime { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { fmt::Display::fmt(self, f) } } impl fmt::Display for Datetime { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { if let Some(ref date) = self.date { write!(f, "{}", date)?; } @@ -89,13 +89,13 @@ impl fmt::Display for Datetime { } impl fmt::Display for Date { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{:04}-{:02}-{:02}", self.year, self.month, self.day) } } impl fmt::Display for Time { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { write!(f, "{:02}:{:02}:{:02}", self.hour, self.minute, self.second)?; if self.nanosecond != 0 { let s = format!("{:09}", self.nanosecond); @@ -106,7 +106,7 @@ impl fmt::Display for Time { } impl fmt::Display for Offset { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { Offset::Z => write!(f, "Z"), Offset::Custom { hours, minutes } => write!(f, "{:+03}:{:02}", hours, minutes), @@ -207,7 +207,7 @@ impl FromStr for Datetime { let mut end = whole.len(); for (i, byte) in whole.bytes().enumerate() { match byte { - b'0'...b'9' => { + b'0'..=b'9' => { if i < 9 { let p = 10_u32.pow(8 - i as u32); nanosecond += p * (byte - b'0') as u32; @@ -298,7 +298,7 @@ impl FromStr for Datetime { } } -fn digit(chars: &mut str::Chars) -> Result { +fn digit(chars: &mut str::Chars<'_>) -> Result { match chars.next() { Some(c) if '0' <= c && c <= '9' => Ok(c as u8 - b'0'), _ => Err(DatetimeParseError { _private: () }), @@ -328,7 +328,7 @@ impl<'de> de::Deserialize<'de> for Datetime { impl<'de> de::Visitor<'de> for DatetimeVisitor { type Value = Datetime; - fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { formatter.write_str("a TOML datetime") } @@ -362,7 +362,7 @@ impl<'de> de::Deserialize<'de> for DatetimeKey { impl<'de> de::Visitor<'de> for FieldVisitor { type Value = (); - fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { formatter.write_str("a valid datetime field") } @@ -397,7 +397,7 @@ impl<'de> de::Deserialize<'de> for DatetimeFromString { impl<'de> de::Visitor<'de> for Visitor { type Value = DatetimeFromString; - fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { formatter.write_str("string containing a datetime") } @@ -417,7 +417,7 @@ impl<'de> de::Deserialize<'de> for DatetimeFromString { } impl fmt::Display for DatetimeParseError { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { "failed to parse datetime".fmt(f) } } diff --git a/src/de.rs b/src/de.rs index 291da3b..077c008 100644 --- a/src/de.rs +++ b/src/de.rs @@ -41,9 +41,7 @@ where /// # Examples /// /// ``` -/// #[macro_use] -/// extern crate serde_derive; -/// extern crate toml; +/// use serde_derive::Deserialize; /// /// #[derive(Deserialize)] /// struct Config { @@ -265,7 +263,7 @@ impl<'de, 'b> de::Deserializer<'de> for &'b mut Deserializer<'de> { } } - forward_to_deserialize_any! { + serde::forward_to_deserialize_any! { bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq bytes byte_buf map struct unit newtype_struct ignored_any unit_struct tuple_struct tuple option identifier @@ -495,7 +493,7 @@ impl<'de, 'b> de::Deserializer<'de> for MapVisitor<'de, 'b> { visitor.visit_newtype_struct(self) } - forward_to_deserialize_any! { + serde::forward_to_deserialize_any! { bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq bytes byte_buf map struct unit identifier ignored_any unit_struct tuple_struct tuple enum @@ -525,7 +523,7 @@ impl<'de> de::Deserializer<'de> for StrDeserializer<'de> { } } - forward_to_deserialize_any! { + serde::forward_to_deserialize_any! { bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq bytes byte_buf map struct option unit newtype_struct ignored_any unit_struct tuple_struct tuple enum identifier @@ -699,7 +697,7 @@ impl<'de> de::Deserializer<'de> for ValueDeserializer<'de> { visitor.visit_newtype_struct(self) } - forward_to_deserialize_any! { + serde::forward_to_deserialize_any! { bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq bytes byte_buf map unit identifier ignored_any unit_struct tuple_struct tuple @@ -796,7 +794,7 @@ impl<'de> de::Deserializer<'de> for DatetimeFieldDeserializer { visitor.visit_borrowed_str(datetime::FIELD) } - forward_to_deserialize_any! { + serde::forward_to_deserialize_any! { bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string seq bytes byte_buf map struct option unit newtype_struct ignored_any unit_struct tuple_struct tuple enum identifier @@ -1520,7 +1518,7 @@ impl<'a> Deserializer<'a> { fn array(&mut self) -> Result<(Span, Vec>), Error> { let mut ret = Vec::new(); - let intermediate = |me: &mut Deserializer| { + let intermediate = |me: &mut Deserializer<'_>| { loop { me.eat_whitespace()?; if !me.eat(Token::Newline)? && !me.eat_comment()? { @@ -1775,7 +1773,7 @@ impl Error { } impl fmt::Display for Error { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match self.inner.kind { ErrorKind::UnexpectedEof => "unexpected eof encountered".fmt(f)?, ErrorKind::InvalidCharInString(c) => write!( diff --git a/src/lib.rs b/src/lib.rs index 7e8dbbe..30ee3bc 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -77,9 +77,7 @@ //! An example of deserializing with TOML is: //! //! ```rust -//! #[macro_use] -//! extern crate serde_derive; -//! extern crate toml; +//! use serde_derive::Deserialize; //! //! #[derive(Deserialize)] //! struct Config { @@ -113,9 +111,7 @@ //! You can serialize types in a similar fashion: //! //! ```rust -//! #[macro_use] -//! extern crate serde_derive; -//! extern crate toml; +//! use serde_derive::Serialize; //! //! #[derive(Serialize)] //! struct Config { @@ -150,11 +146,7 @@ #![doc(html_root_url = "https://docs.rs/toml/0.5")] #![deny(missing_docs)] - -#[macro_use] -extern crate serde; -#[cfg(feature = "preserve_order")] -extern crate linked_hash_map; +#![warn(rust_2018_idioms)] pub mod map; pub mod value; diff --git a/src/macros.rs b/src/macros.rs index 9f11733..0731afe 100644 --- a/src/macros.rs +++ b/src/macros.rs @@ -7,11 +7,8 @@ use crate::value::{Array, Table, Value}; /// [`toml::Value`]: value/enum.Value.html /// /// ```rust -/// #[macro_use] -/// extern crate toml; -/// /// fn main() { -/// let cargo_toml = toml! { +/// let cargo_toml = toml::toml! { /// [package] /// name = "toml" /// version = "0.4.5" diff --git a/src/map.rs b/src/map.rs index 3a2473a..054961d 100644 --- a/src/map.rs +++ b/src/map.rs @@ -140,7 +140,7 @@ impl Map { /// Gets the given key's corresponding entry in the map for in-place /// manipulation. - pub fn entry(&mut self, key: S) -> Entry + pub fn entry(&mut self, key: S) -> Entry<'_> where S: Into, { @@ -169,7 +169,7 @@ impl Map { /// Gets an iterator over the entries of the map. #[inline] - pub fn iter(&self) -> Iter { + pub fn iter(&self) -> Iter<'_> { Iter { iter: self.map.iter(), } @@ -177,7 +177,7 @@ impl Map { /// Gets a mutable iterator over the entries of the map. #[inline] - pub fn iter_mut(&mut self) -> IterMut { + pub fn iter_mut(&mut self) -> IterMut<'_> { IterMut { iter: self.map.iter_mut(), } @@ -185,7 +185,7 @@ impl Map { /// Gets an iterator over the keys of the map. #[inline] - pub fn keys(&self) -> Keys { + pub fn keys(&self) -> Keys<'_> { Keys { iter: self.map.keys(), } @@ -193,7 +193,7 @@ impl Map { /// Gets an iterator over the values of the map. #[inline] - pub fn values(&self) -> Values { + pub fn values(&self) -> Values<'_> { Values { iter: self.map.values(), } @@ -253,7 +253,7 @@ where impl Debug for Map { #[inline] - fn fmt(&self, formatter: &mut fmt::Formatter) -> Result<(), fmt::Error> { + fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> Result<(), fmt::Error> { self.map.fmt(formatter) } } @@ -285,7 +285,7 @@ impl<'de> de::Deserialize<'de> for Map { impl<'de> de::Visitor<'de> for Visitor { type Value = Map; - fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { formatter.write_str("a map") } diff --git a/src/ser.rs b/src/ser.rs index 2dcd962..328772a 100644 --- a/src/ser.rs +++ b/src/ser.rs @@ -12,8 +12,7 @@ //! may use the `tables_last` function in this module like so: //! //! ```rust -//! # #[macro_use] extern crate serde_derive; -//! # extern crate toml; +//! # use serde_derive::Serialize; //! # use std::collections::HashMap; //! #[derive(Serialize)] //! struct Manifest { @@ -56,9 +55,7 @@ where /// # Examples /// /// ``` -/// #[macro_use] -/// extern crate serde_derive; -/// extern crate toml; +/// use serde_derive::Serialize; /// /// #[derive(Serialize)] /// struct Config { @@ -442,7 +439,7 @@ impl<'a> Serializer<'a> { } // recursive implementation of `emit_key` above - fn _emit_key(&mut self, state: &State) -> Result<(), Error> { + fn _emit_key(&mut self, state: &State<'_>) -> Result<(), Error> { match *state { State::End => Ok(()), State::Array { @@ -479,7 +476,7 @@ impl<'a> Serializer<'a> { fn emit_array(&mut self, first: &Cell, len: Option) -> Result<(), Error> { match (len, &self.settings.array) { - (Some(0...1), _) | (_, &None) => { + (Some(0..=1), _) | (_, &None) => { if first.get() { self.dst.push_str("[") } else { @@ -517,7 +514,7 @@ impl<'a> Serializer<'a> { fn escape_key(&mut self, key: &str) -> Result<(), Error> { let ok = key.chars().all(|c| match c { - 'a'...'z' | 'A'...'Z' | '0'...'9' | '-' | '_' => true, + 'a'..='z' | 'A'..='Z' | '0'..='9' | '-' | '_' => true, _ => false, }); if ok { @@ -666,7 +663,7 @@ impl<'a> Serializer<'a> { Ok(()) } - fn emit_table_header(&mut self, state: &State) -> Result<(), Error> { + fn emit_table_header(&mut self, state: &State<'_>) -> Result<(), Error> { let array_of_tables = match *state { State::End => return Ok(()), State::Array { .. } => true, @@ -730,7 +727,7 @@ impl<'a> Serializer<'a> { Ok(()) } - fn emit_key_part(&mut self, key: &State) -> Result { + fn emit_key_part(&mut self, key: &State<'_>) -> Result { match *key { State::Array { parent, .. } => self.emit_key_part(parent), State::End => Ok(true), @@ -997,7 +994,7 @@ impl<'a, 'b> ser::SerializeSeq for SerializeSeq<'a, 'b> { match self.type_.get() { Some("table") => return Ok(()), Some(_) => match (self.len, &self.ser.settings.array) { - (Some(0...1), _) | (_, &None) => { + (Some(0..=1), _) | (_, &None) => { self.ser.dst.push_str("]"); } (_, &Some(ref a)) => { @@ -1531,7 +1528,7 @@ impl ser::Serializer for StringExtractor { } impl fmt::Display for Error { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { match *self { Error::UnsupportedType => "unsupported Rust type".fmt(f), Error::KeyNotString => "map key was not a string".fmt(f), @@ -1584,8 +1581,7 @@ enum Category { /// helper can be used like so: /// /// ```rust -/// # #[macro_use] extern crate serde_derive; -/// # extern crate toml; +/// # use serde_derive::Serialize; /// # use std::collections::HashMap; /// #[derive(Serialize)] /// struct Manifest { diff --git a/src/spanned.rs b/src/spanned.rs index fb476ee..cd02c87 100644 --- a/src/spanned.rs +++ b/src/spanned.rs @@ -1,8 +1,5 @@ //! ``` -//! #[macro_use] -//! extern crate serde_derive; -//! -//! extern crate toml; +//! use serde_derive::Deserialize; //! use toml::Spanned; //! //! #[derive(Deserialize)] @@ -93,7 +90,7 @@ where { type Value = Spanned; - fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { formatter.write_str("a TOML spanned") } diff --git a/src/tokens.rs b/src/tokens.rs index 6413ce1..f9d3eb4 100644 --- a/src/tokens.rs +++ b/src/tokens.rs @@ -294,8 +294,8 @@ impl<'a> Tokenizer<'a> { &mut self, delim: char, start: usize, - new_ch: &mut FnMut( - &mut Tokenizer, + new_ch: &mut dyn FnMut( + &mut Tokenizer<'_>, &mut MaybeString, bool, usize, @@ -514,7 +514,7 @@ impl MaybeString { } } - fn into_cow(self, input: &str) -> Cow { + fn into_cow(self, input: &str) -> Cow<'_, str> { match self { MaybeString::NotEscaped(start) => Cow::Borrowed(&input[start..]), MaybeString::Owned(s) => Cow::Owned(s), @@ -665,9 +665,9 @@ mod tests { #[test] fn all() { - fn t(input: &str, expected: &[((usize, usize), Token, &str)]) { + fn t(input: &str, expected: &[((usize, usize), Token<'_>, &str)]) { let mut tokens = Tokenizer::new(input); - let mut actual: Vec<((usize, usize), Token, &str)> = Vec::new(); + let mut actual: Vec<((usize, usize), Token<'_>, &str)> = Vec::new(); while let Some((span, token)) = tokens.next().unwrap() { actual.push((span.into(), token, &input[span.start..span.end])); } diff --git a/src/value.rs b/src/value.rs index 0e463ec..8f2c6c6 100644 --- a/src/value.rs +++ b/src/value.rs @@ -391,7 +391,7 @@ where } impl fmt::Display for Value { - fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { + fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result { crate::ser::to_string(self) .expect("Unable to represent value as string") .fmt(f) @@ -462,7 +462,7 @@ impl<'de> de::Deserialize<'de> for Value { impl<'de> de::Visitor<'de> for ValueVisitor { type Value = Value; - fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { formatter.write_str("any valid TOML value") } @@ -628,7 +628,7 @@ impl<'de> de::Deserializer<'de> for Value { visitor.visit_newtype_struct(self) } - forward_to_deserialize_any! { + serde::forward_to_deserialize_any! { bool u8 u16 u32 u64 i8 i16 i32 i64 f32 f64 char str string unit seq bytes byte_buf map unit_struct tuple_struct struct tuple ignored_any identifier @@ -1060,7 +1060,7 @@ impl<'a, 'de> de::DeserializeSeed<'de> for DatetimeOrTable<'a> { impl<'a, 'de> de::Visitor<'de> for DatetimeOrTable<'a> { type Value = bool; - fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result { + fn expecting(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result { formatter.write_str("a string key") } -- cgit v1.2.3