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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
|
#![cfg(feature = "luau")]
use std::env;
use std::fs;
use std::sync::atomic::{AtomicU64, Ordering};
use std::sync::Arc;
use mlua::{Error, Lua, Result, Table, ThreadStatus, Value, VmState};
#[test]
fn test_require() -> Result<()> {
let lua = Lua::new();
let temp_dir = tempfile::tempdir().unwrap();
fs::write(
temp_dir.path().join("module.luau"),
r#"
counter = counter or 0
return counter + 1
"#,
)?;
env::set_var("LUAU_PATH", temp_dir.path().join("?.luau"));
lua.load(
r#"
local module = require("module")
assert(module == 1)
module = require("module")
assert(module == 1)
"#,
)
.exec()
}
#[test]
fn test_vectors() -> Result<()> {
let lua = Lua::new();
let v: [f32; 3] = lua.load("vector(1, 2, 3) + vector(3, 2, 1)").eval()?;
assert_eq!(v, [4.0, 4.0, 4.0]);
// Test vector methods
lua.load(
r#"
local v = vector(1, 2, 3)
assert(v.x == 1)
assert(v.y == 2)
assert(v.z == 3)
"#,
)
.exec()?;
// Test vector methods (fastcall)
lua.load(
r#"
local v = vector(1, 2, 3)
assert(v.x == 1)
assert(v.y == 2)
assert(v.z == 3)
"#,
)
.set_vector_ctor(Some("vector".to_string()))
.exec()?;
Ok(())
}
#[test]
fn test_readonly_table() -> Result<()> {
let lua = Lua::new();
let t = lua.create_table()?;
assert!(!t.is_readonly());
t.set_readonly(true);
assert!(t.is_readonly());
match t.set("key", "value") {
Err(Error::RuntimeError(err)) if err.contains("Attempt to modify a readonly table") => {}
r => panic!(
"expected RuntimeError(...) with a specific message, got {:?}",
r
),
};
Ok(())
}
#[test]
fn test_sandbox() -> Result<()> {
let lua = Lua::new();
lua.sandbox(true)?;
lua.load("global = 123").exec()?;
let n: i32 = lua.load("return global").eval()?;
assert_eq!(n, 123);
assert_eq!(lua.globals().get::<_, Option<i32>>("global")?, Some(123));
// Threads should inherit "main" globals
let f = lua.create_function(|lua, ()| lua.globals().get::<_, i32>("global"))?;
let co = lua.create_thread(f.clone())?;
assert_eq!(co.resume::<_, Option<i32>>(())?, Some(123));
// Sandboxed threads should also inherit "main" globals
let co = lua.create_thread(f)?;
co.sandbox()?;
assert_eq!(co.resume::<_, Option<i32>>(())?, Some(123));
lua.sandbox(false)?;
// Previously set variable `global` should be cleared now
assert_eq!(lua.globals().get::<_, Option<i32>>("global")?, None);
// Readonly flags should be cleared as well
let table = lua.globals().get::<_, Table>("table")?;
table.set("test", "test")?;
Ok(())
}
#[test]
fn test_sandbox_threads() -> Result<()> {
let lua = Lua::new();
let f = lua.create_function(|lua, v: Value| lua.globals().set("global", v))?;
let co = lua.create_thread(f.clone())?;
co.resume(321)?;
// The main state should see the `global` variable (as the thread is not sandboxed)
assert_eq!(lua.globals().get::<_, Option<i32>>("global")?, Some(321));
let co = lua.create_thread(f.clone())?;
co.sandbox()?;
co.resume(123)?;
// The main state should see the previous `global` value (as the thread is sandboxed)
assert_eq!(lua.globals().get::<_, Option<i32>>("global")?, Some(321));
// Try to reset the (sandboxed) thread
co.reset(f)?;
co.resume(111)?;
assert_eq!(lua.globals().get::<_, Option<i32>>("global")?, Some(111));
Ok(())
}
#[test]
fn test_interrupts() -> Result<()> {
let lua = Lua::new();
let interrupts_count = Arc::new(AtomicU64::new(0));
let interrupts_count2 = interrupts_count.clone();
lua.set_interrupt(move |_lua| {
interrupts_count2.fetch_add(1, Ordering::Relaxed);
Ok(VmState::Continue)
});
let f = lua
.load(
r#"
local x = 2 + 3
local y = x * 63
local z = string.len(x..", "..y)
"#,
)
.into_function()?;
f.call(())?;
assert!(interrupts_count.load(Ordering::Relaxed) > 0);
//
// Test yields from interrupt
//
let yield_count = Arc::new(AtomicU64::new(0));
let yield_count2 = yield_count.clone();
lua.set_interrupt(move |_lua| {
if yield_count2.fetch_add(1, Ordering::Relaxed) == 1 {
return Ok(VmState::Yield);
}
Ok(VmState::Continue)
});
let co = lua.create_thread(
lua.load(
r#"
local a = {1, 2, 3}
local b = 0
for _, x in ipairs(a) do b += x end
return b
"#,
)
.into_function()?,
)?;
co.resume(())?;
assert_eq!(co.status(), ThreadStatus::Resumable);
let result: i32 = co.resume(())?;
assert_eq!(result, 6);
assert_eq!(yield_count.load(Ordering::Relaxed), 7);
assert_eq!(co.status(), ThreadStatus::Unresumable);
//
// Test errors in interrupts
//
lua.set_interrupt(|_| Err(Error::RuntimeError("error from interrupt".into())));
match f.call::<_, ()>(()) {
Err(Error::CallbackError { cause, .. }) => match *cause {
Error::RuntimeError(ref m) if m == "error from interrupt" => {}
ref e => panic!("expected RuntimeError with a specific message, got {:?}", e),
},
r => panic!("expected CallbackError, got {:?}", r),
}
lua.remove_interrupt();
Ok(())
}
|
