Enable static linking, libczi is now a submodule.
This commit is contained in:
Wim Pomp
209
build.rs
209
build.rs
@@ -1,90 +1,171 @@
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use anyhow::Result;
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extern crate bindgen;
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use anyhow::{Error, Result};
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use std::env;
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use std::fs::OpenOptions;
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use std::io::{Read, Seek, Write};
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use std::path::PathBuf;
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#[cfg(not(feature = "dynamic"))]
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use std::fmt::Debug;
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#[cfg(not(feature = "dynamic"))]
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use bindgen::callbacks::ItemInfo;
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#[cfg(not(feature = "dynamic"))]
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use std::collections::HashMap;
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#[cfg(not(feature = "dynamic"))]
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use regex::Regex;
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fn main() -> Result<()> {
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if env::var("DOCS_RS").is_err() {
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let out_dir = PathBuf::from(env::var("OUT_DIR")?).canonicalize()?;
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let libczi_dir = out_dir.join("libczirw");
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let rep = if !libczi_dir.exists() {
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git2::Repository::clone("https://github.com/ZEISS/libczi.git", &libczi_dir)
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.expect("unable to clone libczirw")
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} else {
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git2::Repository::open(&libczi_dir)?
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};
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let (object, _) = rep.revparse_ext("494ac62f853de6ab86458f167fd85a03ee6d4f7e")?;
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rep.checkout_tree(&object, None)?;
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let libczi_dir = PathBuf::from("libczi");
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let libczi_src = libczi_dir.join("Src/libCZI");
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let libcziapi_inc = libczi_dir.join("Src/libCZIAPI/inc");
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let libcziapi_src = libczi_dir.join("Src/libCZIAPI/src");
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let libcziapi_h = libcziapi_inc.join("libCZIApi.h");
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let dst = cmake::Config::new(&libczi_dir)
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.cxxflag("-fms-extensions")
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.define("LIBCZI_BUILD_UNITTESTS", "OFF")
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.define("LIBCZI_BUILD_CZICMD", "OFF")
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.define("LIBCZI_BUILD_DYNLIB", "OFF")
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.define("LIBCZI_BUILD_PREFER_EXTERNALPACKAGE_EIGEN3", "OFF")
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.define("LIBCZI_BUILD_PREFER_EXTERNALPACKAGE_ZSTD", "OFF")
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.define("LIBCZI_BUILD_CURL_BASED_STREAM", "OFF")
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.define("LIBCZI_BUILD_PREFER_EXTERNAL_PACKAGE_LIBCURL", "OFF")
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.define("LIBCZI_BUILD_PREFER_EXTERNALPACKAGE_LIBCURL", "OFF")
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.define("LIBCZI_BUILD_AZURESDK_BASED_STREAM", "OFF")
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.define("LIBCZI_BUILD_PREFER_EXTERNALPACKAGE_RAPIDJSON", "OFF")
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.define("LIBCZI_BUILD_LIBCZIAPI", "ON")
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.build();
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// let libcziapi_inc = libczi_dir.join("Src/libCZIAPI/inc");
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// let libczi_src = libczi_dir.join("Src/libCZI");
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// let libcziapi_src = libczi_dir.join("Src/libCZIAPI/src");
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// let libczi_h = libcziapi_inc.join("libCZIApi.h");
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let import_export = libczi_dir.join("Src/libCZIAPI/inc/importexport.h");
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{
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let mut file = OpenOptions::new()
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.read(true)
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.write(true)
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.open(&import_export)
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.expect("Could not open file");
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let mut data = String::new();
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file.read_to_string(&mut data).expect("Could not read file");
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let data = data.replace(" __declspec(dllexport)", "");
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let bytes = data.as_bytes();
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(&file).rewind().expect("Could not rewind");
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(&file).write_all(bytes).expect("Could not write file");
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file.set_len(bytes.len() as u64)
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.expect("Could not truncate");
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#[cfg(not(feature = "dynamic"))]
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let bindings = {
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let mut libcziapi_a = out_dir.join("build/Src/libCZIAPI/liblibCZIAPIStatic.a");
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if !libcziapi_a.exists() {
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libcziapi_a = out_dir.join("build/Src/libCZIAPI/liblibCZIAPIStatic.lib");
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}
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bindgen::Builder::default().parse_callbacks(Box::new(DeMangler::new(libcziapi_a)?))
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};
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// let bindings = bindgen::Builder::default()
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// .clang_args([
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// "-x",
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// "c++",
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// "-std=c++14",
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// "-I",
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// libcziapi_inc
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// .to_str()
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// .ok_or(Error::msg("cannot into string"))?,
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// "-I",
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// libcziapi_src
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// .to_str()
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// .ok_or(Error::msg("cannot into string"))?,
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// "-I",
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// libczi_src
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// .to_str()
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// .ok_or(Error::msg("cannot into string"))?,
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// ])
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// .header(libczi_h.to_str().ok_or(Error::msg("cannot into string"))?)
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// .generate()
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// .expect("Unable to generate bindings");
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//
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// bindings
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// .write_to_file(out_dir.join("lib_czi_api.rs"))
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// .expect("Couldn't write bindings!");
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#[cfg(feature = "dynamic")]
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let bindings = bindgen::Builder::default();
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println!(
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"cargo:rustc-link-search=native={}",
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dst.join("build/Src/libCZIAPI").display()
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);
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println!("cargo:rustc-link-lib=libCZIAPI");
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let bindings = bindings
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.merge_extern_blocks(true)
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.clang_args([
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"-fms-extensions",
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"-x",
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"c++",
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"-std=c++14",
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"-I",
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libcziapi_inc
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.to_str()
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.ok_or(Error::msg("cannot into string"))?,
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"-I",
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libcziapi_src
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.to_str()
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.ok_or(Error::msg("cannot into string"))?,
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"-I",
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libczi_src
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.to_str()
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.ok_or(Error::msg("cannot into string"))?,
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])
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.header(
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libcziapi_h
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.to_str()
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.ok_or(Error::msg("cannot into string"))?,
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)
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.generate()?;
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bindings.write_to_file(out_dir.join("lib_czi_api.rs"))?;
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#[cfg(not(feature = "dynamic"))]
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{
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println!(
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"cargo:rustc-link-search=native={}",
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dst.join("build/Src/libCZIAPI").display()
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);
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println!("cargo:rustc-link-lib=static=libCZIAPIStatic");
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println!(
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"cargo:rustc-link-search=native={}",
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dst.join("build/Src/libCZI").display()
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);
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let profile = env::var("PROFILE")?;
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match profile.as_str() {
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"debug" => println!("cargo:rustc-link-lib=static=libCZIStaticd"),
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"release" => println!("cargo:rustc-link-lib=static=libCZIStatic"),
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_ => return Err(Error::msg(format!("unsupported profile: {}", profile))),
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}
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println!(
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"cargo:rustc-link-search=native={}",
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dst.join("lib").display()
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);
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println!(
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"cargo:rustc-link-search=native={}",
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dst.join("lib64").display()
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);
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println!("cargo:rustc-link-lib=static=zstd");
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}
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#[cfg(feature = "dynamic")]
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{
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println!(
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"cargo:rustc-link-search=native={}",
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dst.join("build/Src/libCZIAPI").display()
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);
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println!("cargo:rustc-link-lib=libCZIAPI");
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}
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}
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println!("cargo::rerun-if-changed=build.rs");
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Ok(())
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}
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#[cfg(not(feature = "dynamic"))]
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#[derive(Debug)]
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struct DeMangler {
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map: HashMap<String, String>,
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}
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#[cfg(not(feature = "dynamic"))]
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impl DeMangler {
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fn new(a_file: PathBuf) -> Result<Self> {
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let cmd = std::process::Command::new("nm").arg(&a_file).output()?;
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let pat = Regex::new(r"^[\da-f]*\s[A-Z]\s(.*_Z(\d+)(libCZI_.*))$")?;
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let mut map = HashMap::new();
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for line in std::str::from_utf8(&cmd.stdout)?.lines() {
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if let Some(caps) = pat.captures(line.trim()) {
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if let (Some(symbol), Some(n), Some(name)) = (caps.get(1), caps.get(2), caps.get(3))
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{
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let n: usize = n.as_str().parse()?;
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let name = name.as_str();
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let demangled = name[..n].to_string();
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let mangled = symbol.as_str().to_string();
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if let Some(existing_mangled) = map.get(&demangled) {
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if existing_mangled != &mangled {
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return Err(Error::msg(format!(
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"conflicting mangled symbols for {} in {}: {}, {}",
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demangled,
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a_file.to_str().unwrap(),
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existing_mangled,
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mangled
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)));
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}
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} else {
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map.insert(demangled, mangled);
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}
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}
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}
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}
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Ok(Self { map })
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}
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}
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#[cfg(not(feature = "dynamic"))]
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impl bindgen::callbacks::ParseCallbacks for DeMangler {
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fn generated_link_name_override(&self, item_info: ItemInfo<'_>) -> Option<String> {
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self.map.get(item_info.name).cloned()
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}
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}
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