1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
#![allow(deprecated)]
use clean;
use std::dynamic_lib as dl;
use serialize::json;
use std::mem;
use std::string::String;
use std::path::PathBuf;
pub type PluginJson = Option<(String, json::Json)>;
pub type PluginResult = (clean::Crate, PluginJson);
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, krate: clean::Crate) -> (clean::Crate, Vec<PluginJson> ) {
let mut out_json = Vec::new();
let mut krate = krate;
for &callback in &self.callbacks {
let (c, res) = callback(krate);
krate = c;
out_json.push(res);
}
(krate, out_json)
}
}
#[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_str("lib");
i.push_str(&n);
i.push_str(".so");
i
}