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Merge pull request #3096 from otavio/use-bytecount-count

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utils: rewrite `count_newlines` using `bytecount::count`
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Nick Cameron 2018-10-15 11:07:58 +12:00 committed by GitHub
commit 51ddac33c5
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4 changed files with 13 additions and 2 deletions
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7
Cargo.lock generated
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@ -63,6 +63,11 @@ name = "bitflags"
version = "1.0.4"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "bytecount"
version = "0.3.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
[[package]]
name = "byteorder"
version = "1.2.6"
@ -593,6 +598,7 @@ version = "0.99.5"
dependencies = [
"assert_cli 0.6.3 (registry+https://github.com/rust-lang/crates.io-index)",
"atty 0.2.11 (registry+https://github.com/rust-lang/crates.io-index)",
"bytecount 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
"cargo_metadata 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
"derive-new 0.5.5 (registry+https://github.com/rust-lang/crates.io-index)",
"diff 0.1.11 (registry+https://github.com/rust-lang/crates.io-index)",
@ -842,6 +848,7 @@ dependencies = [
"checksum backtrace 0.3.9 (registry+https://github.com/rust-lang/crates.io-index)" = "89a47830402e9981c5c41223151efcced65a0510c13097c769cede7efb34782a"
"checksum backtrace-sys 0.1.24 (registry+https://github.com/rust-lang/crates.io-index)" = "c66d56ac8dabd07f6aacdaf633f4b8262f5b3601a810a0dcddffd5c22c69daa0"
"checksum bitflags 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)" = "228047a76f468627ca71776ecdebd732a3423081fcf5125585bcd7c49886ce12"
"checksum bytecount 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "f861d9ce359f56dbcb6e0c2a1cb84e52ad732cadb57b806adeb3c7668caccbd8"
"checksum byteorder 1.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "90492c5858dd7d2e78691cfb89f90d273a2800fc11d98f60786e5d87e2f83781"
"checksum cargo_metadata 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "2d6809b327f87369e6f3651efd2c5a96c49847a3ed2559477ecba79014751ee1"
"checksum cc 1.0.25 (registry+https://github.com/rust-lang/crates.io-index)" = "f159dfd43363c4d08055a07703eb7a3406b0dac4d0584d96965a3262db3c9d16"

1
Cargo.toml
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@ -51,6 +51,7 @@ rustc-ap-rustc_target = "272.0.0"
rustc-ap-syntax = "272.0.0"
rustc-ap-syntax_pos = "272.0.0"
failure = "0.1.1"
bytecount = { version = "0.3", features = ["simd-accel"] }
[dev-dependencies]
assert_cli = "0.6"

1
src/lib.rs
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@ -17,6 +17,7 @@
#[macro_use]
extern crate derive_new;
extern crate atty;
extern crate bytecount;
extern crate diff;
extern crate failure;
extern crate itertools;

6
src/utils.rs
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@ -10,6 +10,8 @@
use std::borrow::Cow;
use bytecount;
use rustc_target::spec::abi;
use syntax::ast::{
self, Attribute, CrateSugar, MetaItem, MetaItemKind, NestedMetaItem, NestedMetaItemKind, Path,
@ -305,8 +307,8 @@ pub fn stmt_expr(stmt: &ast::Stmt) -> Option<&ast::Expr> {
#[inline]
pub fn count_newlines(input: &str) -> usize {
// Using `as_bytes` to omit UTF-8 decoding
input.as_bytes().iter().filter(|&&c| c == b'\n').count()
// Using bytes to omit UTF-8 decoding
bytecount::count(input.as_bytes(), b'\n')
}
// For format_missing and last_pos, need to use the source callsite (if applicable).