142 lines
4 KiB
Rust
142 lines
4 KiB
Rust
#![cfg_attr(
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all(feature = "luajit", target_os = "macos", target_arch = "x86_64"),
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feature(link_args)
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)]
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#[cfg_attr(
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all(feature = "luajit", target_os = "macos", target_arch = "x86_64"),
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link_args = "-pagezero_size 10000 -image_base 100000000"
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)]
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extern "system" {}
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use std::panic::catch_unwind;
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use mlua::{Error, Function, Lua, Result, Thread, ThreadStatus};
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#[test]
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fn test_thread() -> Result<()> {
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let lua = Lua::new();
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let thread = lua.create_thread(
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lua.load(
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r#"
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function (s)
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local sum = s
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for i = 1,4 do
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sum = sum + coroutine.yield(sum)
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end
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return sum
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end
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"#,
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)
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.eval()?,
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)?;
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assert_eq!(thread.status(), ThreadStatus::Resumable);
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assert_eq!(thread.resume::<_, i64>(0)?, 0);
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assert_eq!(thread.status(), ThreadStatus::Resumable);
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assert_eq!(thread.resume::<_, i64>(1)?, 1);
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assert_eq!(thread.status(), ThreadStatus::Resumable);
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assert_eq!(thread.resume::<_, i64>(2)?, 3);
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assert_eq!(thread.status(), ThreadStatus::Resumable);
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assert_eq!(thread.resume::<_, i64>(3)?, 6);
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assert_eq!(thread.status(), ThreadStatus::Resumable);
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assert_eq!(thread.resume::<_, i64>(4)?, 10);
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assert_eq!(thread.status(), ThreadStatus::Unresumable);
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let accumulate = lua.create_thread(
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lua.load(
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r#"
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function (sum)
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while true do
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sum = sum + coroutine.yield(sum)
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end
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end
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"#,
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)
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.eval::<Function>()?,
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)?;
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for i in 0..4 {
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accumulate.resume::<_, ()>(i)?;
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}
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assert_eq!(accumulate.resume::<_, i64>(4)?, 10);
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assert_eq!(accumulate.status(), ThreadStatus::Resumable);
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assert!(accumulate.resume::<_, ()>("error").is_err());
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assert_eq!(accumulate.status(), ThreadStatus::Error);
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let thread = lua
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.load(
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r#"
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coroutine.create(function ()
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while true do
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coroutine.yield(42)
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end
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end)
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"#,
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)
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.eval::<Thread>()?;
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assert_eq!(thread.status(), ThreadStatus::Resumable);
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assert_eq!(thread.resume::<_, i64>(())?, 42);
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let thread: Thread = lua
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.load(
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r#"
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coroutine.create(function(arg)
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assert(arg == 42)
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local yieldarg = coroutine.yield(123)
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assert(yieldarg == 43)
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return 987
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end)
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"#,
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)
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.eval()?;
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assert_eq!(thread.resume::<_, u32>(42)?, 123);
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assert_eq!(thread.resume::<_, u32>(43)?, 987);
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match thread.resume::<_, u32>(()) {
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Err(Error::CoroutineInactive) => {}
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Err(_) => panic!("resuming dead coroutine error is not CoroutineInactive kind"),
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_ => panic!("resuming dead coroutine did not return error"),
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}
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Ok(())
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}
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#[test]
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fn coroutine_from_closure() -> Result<()> {
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let lua = Lua::new();
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let thrd_main = lua.create_function(|_, ()| Ok(()))?;
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lua.globals().set("main", thrd_main)?;
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#[cfg(any(feature = "lua53", feature = "luajit"))]
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let thrd: Thread = lua.load("coroutine.create(main)").eval()?;
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#[cfg(feature = "lua51")]
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let thrd: Thread = lua
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.load("coroutine.create(function(...) return main(unpack(arg)) end)")
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.eval()?;
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thrd.resume::<_, ()>(())?;
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Ok(())
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}
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#[test]
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fn coroutine_panic() {
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match catch_unwind(|| -> Result<()> {
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// check that coroutines propagate panics correctly
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let lua = Lua::new();
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let thrd_main = lua.create_function(|_, ()| -> Result<()> {
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panic!("test_panic");
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})?;
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lua.globals().set("main", thrd_main.clone())?;
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let thrd: Thread = lua.create_thread(thrd_main)?;
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thrd.resume(())
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}) {
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Ok(r) => panic!("coroutine panic not propagated, instead returned {:?}", r),
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Err(p) => assert!(*p.downcast::<&str>().unwrap() == "test_panic"),
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}
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}
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