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Use rust-phf to map strings to property IDs

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This commit is contained in:
Simon Sapin 2016-12-08 14:19:27 -10:00
parent 137e30b825
commit fdc40592de
7 changed files with 50 additions and 36 deletions
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20
components/style/build.rs
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@ -3,8 +3,11 @@
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
extern crate walkdir;
extern crate phf_codegen;
use std::env;
use std::fs::File;
use std::io::{BufWriter, BufReader, BufRead, Write};
use std::path::Path;
use std::process::{Command, exit};
use walkdir::WalkDir;
@ -61,4 +64,21 @@ fn main() {
if !status.success() {
exit(1)
}
let path = Path::new(&env::var("OUT_DIR").unwrap()).join("static_ids.rs");
let static_ids = Path::new(&env::var("OUT_DIR").unwrap()).join("static_ids.txt");
let mut file = BufWriter::new(File::create(&path).unwrap());
let static_ids = BufReader::new(File::open(&static_ids).unwrap());
write!(&mut file, "static STATIC_IDS: ::phf::Map<&'static str, StaticId> = ").unwrap();
let mut map = phf_codegen::Map::new();
for result in static_ids.lines() {
let line = result.unwrap();
let mut split = line.split('\t');
let key = split.next().unwrap().to_owned();
let value = split.next().unwrap();
map.entry(key, value);
}
map.build(&mut file).unwrap();
write!(&mut file, ";\n").unwrap();
}