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authorDavid Tolnay <dtolnay@chromium.org>2019-04-11 14:30:00 -0700
committerchrome-bot <chrome-bot@chromium.org>2019-04-15 02:06:08 -0700
commitaecf9a4dee6c004bceabf268a5b36d24c3744ca6 (patch)
treef43a4fae670c5e3366d30d405b8f603d44a6464f /gpu_display
parent633426a8fc20a5eef402e159d53228aae13bbaa5 (diff)
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edition: Remove extern crate lines
In Rust 2018 edition, `extern crate` is no longer required for importing
from other crates. Instead of writing:

    extern crate dep;
    use dep::Thing;

we write:

    use dep::Thing;

In this approach, macros are imported individually from the declaring
crate rather than through #[macro_use]. Before:

    #[macro_use]
    extern crate sys_util;

After:

    use sys_util::{debug, error};

The only place that `extern crate` continues to be required is in
importing the compiler's proc_macro API into a procedural macro crate.
This will hopefully be fixed in a future Rust release.

    extern crate proc_macro;

TEST=cargo check
TEST=cargo check --all-features
TEST=cargo check --target aarch64-unknown-linux-gnu
TEST=local kokoro

Change-Id: I0b43768c0d81f2a250b1959fb97ba35cbac56293
Reviewed-on: https://chromium-review.googlesource.com/1565302
Commit-Ready: David Tolnay <dtolnay@chromium.org>
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Tolnay <dtolnay@chromium.org>
Diffstat (limited to 'gpu_display')
-rw-r--r--gpu_display/build.rs2
-rw-r--r--gpu_display/examples/simple.rs2
-rw-r--r--gpu_display/src/lib.rs3
3 files changed, 0 insertions, 7 deletions
diff --git a/gpu_display/build.rs b/gpu_display/build.rs
index 33a8653..69c0fae 100644
--- a/gpu_display/build.rs
+++ b/gpu_display/build.rs
@@ -2,8 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-extern crate cc;
-
 use std::env;
 use std::ffi::OsStr;
 use std::fs;
diff --git a/gpu_display/examples/simple.rs b/gpu_display/examples/simple.rs
index e3499f8..fcf2e54 100644
--- a/gpu_display/examples/simple.rs
+++ b/gpu_display/examples/simple.rs
@@ -1,5 +1,3 @@
-extern crate gpu_display;
-
 use gpu_display::*;
 
 fn main() {
diff --git a/gpu_display/src/lib.rs b/gpu_display/src/lib.rs
index c52e5e9..11a6703 100644
--- a/gpu_display/src/lib.rs
+++ b/gpu_display/src/lib.rs
@@ -4,9 +4,6 @@
 
 //! Crate for displaying simple surfaces and GPU buffers over wayland.
 
-extern crate data_model;
-extern crate sys_util;
-
 mod dwl;
 
 use std::cell::Cell;