Merge pull request #10 from rnestler/use-rust2018

Use Rust 2018 Edition

.circleci/config.yml

@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: rust:1.31.1
+      - image: rust:1.32.0
     steps:
       - checkout
 

Cargo.toml

@@ -17,6 +17,7 @@ include = [
     "LICENSE-MIT",
     "LICENSE-APACHE",
 ]
+edition = "2018"
 
 [features]
 default = []

examples/linux.rs

@@ -1,7 +1,3 @@
-extern crate embedded_hal;
-extern crate linux_embedded_hal;
-extern crate sgp30;
-
 use embedded_hal::blocking::delay::DelayMs;
 use linux_embedded_hal::{I2cdev, Delay};
 use sgp30::Sgp30;

src/lib.rs

@@ -18,8 +18,7 @@
 //! the device:
 //!
 //! ```no_run
-//! extern crate linux_embedded_hal as hal;
-//! extern crate sgp30;
+//! use linux_embedded_hal as hal;
 //!
 //! use hal::{Delay, I2cdev};
 //! use sgp30::Sgp30;
@@ -37,8 +36,7 @@
 //! set](struct.FeatureSet.html):
 //!
 //! ```no_run
-//! # extern crate linux_embedded_hal as hal;
-//! # extern crate sgp30;
+//! # use linux_embedded_hal as hal;
 //! # use hal::{Delay, I2cdev};
 //! # use sgp30::Sgp30;
 //! use sgp30::FeatureSet;
@@ -56,8 +54,7 @@
 //! Before you do any measurements, you need to initialize the sensor.
 //!
 //! ```no_run
-//! # extern crate linux_embedded_hal as hal;
-//! # extern crate sgp30;
+//! # use linux_embedded_hal as hal;
 //! # use hal::{Delay, I2cdev};
 //! # use sgp30::Sgp30;
 //! # fn main() {
@@ -76,9 +73,7 @@
 //! this driver to ensure that these periodic measurements are being done!
 //!
 //! ```no_run
-//! # extern crate embedded_hal;
-//! # extern crate linux_embedded_hal as hal;
-//! # extern crate sgp30;
+//! # use linux_embedded_hal as hal;
 //! # use hal::I2cdev;
 //! # use sgp30::Sgp30;
 //! use embedded_hal::blocking::delay::DelayMs;
@@ -123,8 +118,7 @@
 //! followed by [`set_baseline()`](struct.Sgp30.html#method.set_baseline).
 //!
 //! ```no_run
-//! # extern crate linux_embedded_hal as hal;
-//! # extern crate sgp30;
+//! # use linux_embedded_hal as hal;
 //! # use hal::{I2cdev, Delay};
 //! # use sgp30::Sgp30;
 //! use sgp30::Baseline;
@@ -148,8 +142,7 @@
 //! external humidity sensor is required.
 //!
 //! ```no_run
-//! # extern crate linux_embedded_hal as hal;
-//! # extern crate sgp30;
+//! # use linux_embedded_hal as hal;
 //! # use hal::{I2cdev, Delay};
 //! # use sgp30::Sgp30;
 //! use sgp30::Humidity;
@@ -176,17 +169,15 @@
 #![deny(missing_docs)]
 #![cfg_attr(not(test), no_std)]
 
-extern crate byteorder;
-extern crate embedded_hal as hal;
-extern crate num_traits;
+use embedded_hal as hal;
 
 use byteorder::{BigEndian, ByteOrder};
-use hal::blocking::delay::{DelayMs, DelayUs};
-use hal::blocking::i2c::{Read, Write, WriteRead};
+use crate::hal::blocking::delay::{DelayMs, DelayUs};
+use crate::hal::blocking::i2c::{Read, Write, WriteRead};
 
 mod types;
 
-pub use types::{Measurement, RawSignals, Baseline, Humidity, FeatureSet, ProductType};
+pub use crate::types::{Measurement, RawSignals, Baseline, Humidity, FeatureSet, ProductType};
 
 
 const CRC8_POLYNOMIAL: u8 = 0x31;
@@ -630,7 +621,7 @@ fn crc8(data: &[u8]) -> u8 {
 
 #[cfg(test)]
 mod tests {
-    extern crate embedded_hal_mock as hal;
+    use embedded_hal_mock as hal;
 
     use super::*;
     use self::hal::delay::MockNoop as DelayMock;