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#![allow(deprecated)]
use clean;
use std::mem;
use std::string::String;
use std::path::PathBuf;
use rustc_back::dynamic_lib as dl;
pub type PluginResult = clean::Crate;
pub type PluginCallback = fn (clean::Crate) -> PluginResult;
pub struct PluginManager {
dylibs: Vec<dl::DynamicLibrary> ,
callbacks: Vec<PluginCallback> ,
pub prefix: PathBuf,
}
impl PluginManager {
pub fn new(prefix: PathBuf) -> PluginManager {
PluginManager {
dylibs: Vec::new(),
callbacks: Vec::new(),
prefix: prefix,
}
}
pub fn load_plugin(&mut self, name: String) {
let x = self.prefix.join(libname(name));
let lib_result = dl::DynamicLibrary::open(Some(&x));
let lib = lib_result.unwrap();
unsafe {
let plugin = lib.symbol("rustdoc_plugin_entrypoint").unwrap();
self.callbacks.push(mem::transmute::<*mut u8,PluginCallback>(plugin));
}
self.dylibs.push(lib);
}
pub fn add_plugin(&mut self, plugin: PluginCallback) {
self.callbacks.push(plugin);
}
pub fn run_plugins(&self, mut krate: clean::Crate) -> clean::Crate {
for &callback in &self.callbacks {
krate = callback(krate);
}
krate
}
}
#[cfg(target_os = "windows")]
fn libname(mut n: String) -> String {
n.push_str(".dll");
n
}
#[cfg(target_os="macos")]
fn libname(mut n: String) -> String {
n.push_str(".dylib");
n
}
#[cfg(all(not(target_os="windows"), not(target_os="macos")))]
fn libname(n: String) -> String {
let mut i = String::from("lib");
i.push_str(&n);
i.push_str(".so");
i
}