зеркало из https://github.com/mozilla/gecko-dev.git
78 строки
2.9 KiB
Rust
78 строки
2.9 KiB
Rust
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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extern crate cmake;
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extern crate phf_codegen;
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extern crate phf_shared;
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extern crate serde_json;
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use serde_json::Value;
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use std::env;
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use std::fmt;
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use std::fs::File;
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use std::io::Write;
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use std::path::PathBuf;
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use std::time::Instant;
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fn main() {
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let start = Instant::now();
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// This must use the Ninja generator -- it's the only one that
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// parallelizes cmake's output properly. (Cmake generates
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// separate makefiles, each of which try to build
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// ParserResults.pkl, and then stomp on eachother.)
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let mut build = cmake::Config::new(".");
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let target = env::var("TARGET").unwrap();
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if target.contains("windows-msvc") {
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// We must use Ninja on Windows for this -- msbuild is painfully slow,
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// and ninja is easier to install than make.
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build.generator("Ninja");
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// because we're using ninja, we need to explicitly set these
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// to VC++, otherwise it'll try to use cc
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build.define("CMAKE_C_COMPILER", "cl.exe")
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.define("CMAKE_CXX_COMPILER", "cl.exe");
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// We have to explicitly specify the full path to link.exe,
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// for reasons that I don't understand. If we just give
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// link.exe, it tries to use script-*/out/link.exe, which of
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// course does not exist.
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let link = std::process::Command::new("where").arg("link.exe").output().unwrap();
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let link_path: Vec<&str> = std::str::from_utf8(&link.stdout).unwrap().split("\r\n").collect();
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build.define("CMAKE_LINKER", link_path[0]);
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}
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build.build();
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println!("Binding generation completed in {}s", start.elapsed().as_secs());
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let json = PathBuf::from(env::var("OUT_DIR").unwrap()).join("build").join("InterfaceObjectMapData.json");
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let json: Value = serde_json::from_reader(File::open(&json).unwrap()).unwrap();
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let mut map = phf_codegen::Map::new();
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for (key, value) in json.as_object().unwrap() {
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map.entry(Bytes(key), value.as_str().unwrap());
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}
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let phf = PathBuf::from(env::var("OUT_DIR").unwrap()).join("InterfaceObjectMapPhf.rs");
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let mut phf = File::create(&phf).unwrap();
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write!(&mut phf, "pub static MAP: phf::Map<&'static [u8], unsafe fn(*mut JSContext, HandleObject)> = ").unwrap();
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map.build(&mut phf).unwrap();
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write!(&mut phf, ";\n").unwrap();
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}
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#[derive(Eq, Hash, PartialEq)]
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struct Bytes<'a>(&'a str);
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impl<'a> fmt::Debug for Bytes<'a> {
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fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
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formatter.write_str("b\"")?;
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formatter.write_str(self.0)?;
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formatter.write_str("\" as &'static [u8]")
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}
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}
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impl<'a> phf_shared::PhfHash for Bytes<'a> {
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fn phf_hash<H: std::hash::Hasher>(&self, hasher: &mut H) {
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self.0.as_bytes().phf_hash(hasher)
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}
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}
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