1349 lines
36 KiB
Rust
1349 lines
36 KiB
Rust
use std::collections::HashMap;
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use std::iter::FromIterator;
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use std::panic::{catch_unwind, AssertUnwindSafe};
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use std::string::String as StdString;
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use std::sync::atomic::{AtomicU32, Ordering};
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use std::sync::Arc;
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use std::{error, f32, f64, fmt};
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use mlua::{
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ChunkMode, Error, ExternalError, Function, Lua, LuaOptions, Nil, Result, StdLib, String, Table,
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UserData, Value, Variadic,
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};
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#[cfg(not(feature = "luau"))]
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#[test]
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fn test_safety() -> Result<()> {
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let lua = Lua::new();
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assert!(lua.load(r#"require "debug""#).exec().is_err());
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match lua.load_from_std_lib(StdLib::DEBUG) {
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Err(Error::SafetyError(_)) => {}
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Err(e) => panic!("expected SafetyError, got {:?}", e),
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Ok(_) => panic!("expected SafetyError, got no error"),
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}
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drop(lua);
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let lua = unsafe { Lua::unsafe_new() };
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assert!(lua.load(r#"require "debug""#).exec().is_ok());
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drop(lua);
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match Lua::new_with(StdLib::DEBUG, LuaOptions::default()) {
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Err(Error::SafetyError(_)) => {}
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Err(e) => panic!("expected SafetyError, got {:?}", e),
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Ok(_) => panic!("expected SafetyError, got new Lua state"),
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}
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let lua = Lua::new();
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match lua.load(r#"package.loadlib()"#).exec() {
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Err(Error::CallbackError { ref cause, .. }) => match cause.as_ref() {
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Error::SafetyError(_) => {}
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e => panic!("expected SafetyError cause, got {:?}", e),
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},
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Err(e) => panic!("expected CallbackError, got {:?}", e),
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Ok(_) => panic!("expected CallbackError, got no error"),
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};
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match lua.load(r#"require "fake_ffi""#).exec() {
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Err(Error::RuntimeError(msg)) => assert!(msg.contains("can't load C modules in safe mode")),
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Err(e) => panic!("expected RuntimeError, got {:?}", e),
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Ok(_) => panic!("expected RuntimeError, got no error"),
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}
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drop(lua);
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// Test safety rules after dynamically loading `package` library
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let lua = Lua::new_with(StdLib::NONE, LuaOptions::default())?;
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assert!(lua.globals().get::<_, Option<Value>>("require")?.is_none());
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lua.load_from_std_lib(StdLib::PACKAGE)?;
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match lua.load(r#"package.loadlib()"#).exec() {
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Err(Error::CallbackError { ref cause, .. }) => match cause.as_ref() {
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Error::SafetyError(_) => {}
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e => panic!("expected SafetyError cause, got {:?}", e),
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},
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Err(e) => panic!("expected CallbackError, got {:?}", e),
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Ok(_) => panic!("expected CallbackError, got no error"),
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};
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Ok(())
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}
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#[test]
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fn test_load() -> Result<()> {
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let lua = Lua::new();
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let func = lua.load("return 1+2").into_function()?;
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let result: i32 = func.call(())?;
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assert_eq!(result, 3);
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assert!(lua.load("").exec().is_ok());
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assert!(lua.load("§$%§&$%&").exec().is_err());
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Ok(())
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}
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#[test]
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fn test_exec() -> Result<()> {
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let lua = Lua::new();
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let globals = lua.globals();
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lua.load(
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r#"
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res = 'foo'..'bar'
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"#,
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)
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.exec()?;
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assert_eq!(globals.get::<_, String>("res")?, "foobar");
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let module: Table = lua
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.load(
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r#"
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local module = {}
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function module.func()
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return "hello"
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end
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return module
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"#,
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)
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.eval()?;
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println!("checkpoint");
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assert!(module.contains_key("func")?);
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assert_eq!(
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module.get::<_, Function>("func")?.call::<_, String>(())?,
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"hello"
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);
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Ok(())
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}
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#[test]
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fn test_eval() -> Result<()> {
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let lua = Lua::new();
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assert_eq!(lua.load("1 + 1").eval::<i32>()?, 2);
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assert_eq!(lua.load("false == false").eval::<bool>()?, true);
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assert_eq!(lua.load("return 1 + 2").eval::<i32>()?, 3);
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match lua.load("if true then").eval::<()>() {
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Err(Error::SyntaxError {
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incomplete_input: true,
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..
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}) => {}
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r => panic!(
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"expected SyntaxError with incomplete_input=true, got {:?}",
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r
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),
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}
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Ok(())
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}
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#[test]
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fn test_load_mode() -> Result<()> {
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let lua = unsafe { Lua::unsafe_new() };
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assert_eq!(
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lua.load("1 + 1").set_mode(ChunkMode::Text).eval::<i32>()?,
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2
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);
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match lua.load("1 + 1").set_mode(ChunkMode::Binary).exec() {
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Ok(_) => panic!("expected SyntaxError, got no error"),
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Err(Error::SyntaxError { message: msg, .. }) => {
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assert!(msg.contains("attempt to load a text chunk"))
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}
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Err(e) => panic!("expected SyntaxError, got {:?}", e),
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};
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#[cfg(not(feature = "luau"))]
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let bytecode = lua.load("return 1 + 1").into_function()?.dump(true);
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#[cfg(feature = "luau")]
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let bytecode = mlua::Compiler::new().compile("return 1 + 1");
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assert_eq!(lua.load(&bytecode).eval::<i32>()?, 2);
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assert_eq!(
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lua.load(&bytecode)
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.set_mode(ChunkMode::Binary)
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.eval::<i32>()?,
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2
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);
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match lua.load(&bytecode).set_mode(ChunkMode::Text).exec() {
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Ok(_) => panic!("expected SyntaxError, got no error"),
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Err(Error::SyntaxError { message: msg, .. }) => {
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assert!(msg.contains("attempt to load a binary chunk"))
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}
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Err(e) => panic!("expected SyntaxError, got {:?}", e),
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};
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Ok(())
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}
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#[test]
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fn test_lua_multi() -> Result<()> {
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let lua = Lua::new();
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lua.load(
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r#"
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function concat(arg1, arg2)
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return arg1 .. arg2
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end
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function mreturn()
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return 1, 2, 3, 4, 5, 6
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end
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"#,
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)
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.exec()?;
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let globals = lua.globals();
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let concat = globals.get::<_, Function>("concat")?;
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let mreturn = globals.get::<_, Function>("mreturn")?;
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assert_eq!(concat.call::<_, String>(("foo", "bar"))?, "foobar");
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let (a, b) = mreturn.call::<_, (u64, u64)>(())?;
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assert_eq!((a, b), (1, 2));
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let (a, b, v) = mreturn.call::<_, (u64, u64, Variadic<u64>)>(())?;
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assert_eq!((a, b), (1, 2));
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assert_eq!(v[..], [3, 4, 5, 6]);
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Ok(())
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}
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#[test]
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fn test_coercion() -> Result<()> {
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let lua = Lua::new();
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lua.load(
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r#"
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int = 123
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str = "123"
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num = 123.0
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func = function() end
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"#,
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)
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.exec()?;
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let globals = lua.globals();
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assert_eq!(globals.get::<_, String>("int")?, "123");
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assert_eq!(globals.get::<_, i32>("str")?, 123);
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assert_eq!(globals.get::<_, i32>("num")?, 123);
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assert!(globals.get::<_, String>("func").is_err());
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Ok(())
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}
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#[test]
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fn test_error() -> Result<()> {
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#[derive(Debug)]
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pub struct TestError;
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impl fmt::Display for TestError {
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fn fmt(&self, fmt: &mut fmt::Formatter) -> fmt::Result {
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write!(fmt, "test error")
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}
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}
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impl error::Error for TestError {}
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let lua = Lua::new();
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let globals = lua.globals();
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lua.load(
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r#"
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function no_error()
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end
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function lua_error()
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error("this is a lua error")
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end
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function rust_error()
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rust_error_function()
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end
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function return_error()
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local status, res = pcall(rust_error_function)
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assert(not status)
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return res
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end
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function return_string_error()
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return "this should be converted to an error"
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end
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function test_pcall()
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local testvar = 0
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pcall(function(arg)
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testvar = testvar + arg
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error("should be ignored")
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end, 3)
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local function handler(err)
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if string.match(_VERSION, " 5%.1$")
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or string.match(_VERSION, " 5%.2$")
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or string.match(_VERSION, "Luau")
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then
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-- Special case for Lua 5.1/5.2 and Luau
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local caps = string.match(err, ': (%d+)$')
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if caps then
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err = caps
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end
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end
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testvar = testvar + err
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return "should be ignored"
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end
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local status, res = xpcall(function()
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error(5)
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end, handler)
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assert(not status)
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if testvar ~= 8 then
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error("testvar had the wrong value, pcall / xpcall misbehaving "..testvar)
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end
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end
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function understand_recursion()
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understand_recursion()
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end
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"#,
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)
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.exec()?;
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let rust_error_function =
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lua.create_function(|_, ()| -> Result<()> { Err(TestError.into_lua_err()) })?;
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globals.set("rust_error_function", rust_error_function)?;
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let no_error = globals.get::<_, Function>("no_error")?;
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let lua_error = globals.get::<_, Function>("lua_error")?;
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let rust_error = globals.get::<_, Function>("rust_error")?;
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let return_error = globals.get::<_, Function>("return_error")?;
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let return_string_error = globals.get::<_, Function>("return_string_error")?;
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let test_pcall = globals.get::<_, Function>("test_pcall")?;
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let understand_recursion = globals.get::<_, Function>("understand_recursion")?;
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assert!(no_error.call::<_, ()>(()).is_ok());
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match lua_error.call::<_, ()>(()) {
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Err(Error::RuntimeError(_)) => {}
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Err(e) => panic!("error is not RuntimeError kind, got {:?}", e),
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_ => panic!("error not returned"),
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}
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match rust_error.call::<_, ()>(()) {
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Err(Error::CallbackError { .. }) => {}
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Err(e) => panic!("error is not CallbackError kind, got {:?}", e),
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_ => panic!("error not returned"),
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}
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match return_error.call::<_, Value>(()) {
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Ok(Value::Error(_)) => {}
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_ => panic!("Value::Error not returned"),
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}
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assert!(return_string_error.call::<_, Error>(()).is_ok());
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match lua
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.load("if youre happy and you know it syntax error")
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.exec()
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{
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Err(Error::SyntaxError {
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incomplete_input: false,
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..
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}) => {}
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Err(_) => panic!("error is not LuaSyntaxError::Syntax kind"),
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_ => panic!("error not returned"),
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}
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match lua.load("function i_will_finish_what_i()").exec() {
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Err(Error::SyntaxError {
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incomplete_input: true,
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..
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}) => {}
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Err(_) => panic!("error is not LuaSyntaxError::IncompleteStatement kind"),
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_ => panic!("error not returned"),
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}
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test_pcall.call::<_, ()>(())?;
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assert!(understand_recursion.call::<_, ()>(()).is_err());
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Ok(())
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}
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#[test]
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fn test_panic() -> Result<()> {
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fn make_lua(options: LuaOptions) -> Result<Lua> {
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let lua = Lua::new_with(StdLib::ALL_SAFE, options)?;
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let rust_panic_function =
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lua.create_function(|_, msg: Option<StdString>| -> Result<()> {
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if let Some(msg) = msg {
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panic!("{}", msg)
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}
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panic!("rust panic")
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})?;
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lua.globals()
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.set("rust_panic_function", rust_panic_function)?;
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Ok(lua)
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}
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// Test triggering Lua error with sending Rust panic (must be resumed)
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{
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let lua = make_lua(LuaOptions::default())?;
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match catch_unwind(AssertUnwindSafe(|| -> Result<()> {
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lua.load(
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r#"
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_, err = pcall(rust_panic_function)
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error(err)
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"#,
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)
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.exec()
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})) {
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Ok(Ok(_)) => panic!("no panic was detected"),
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Ok(Err(e)) => panic!("error during panic test {:?}", e),
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Err(p) => assert!(*p.downcast::<&str>().unwrap() == "rust panic"),
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};
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// Trigger same panic again
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match lua.load("error(err)").exec() {
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Ok(_) => panic!("no error was detected"),
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Err(Error::PreviouslyResumedPanic) => {}
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Err(e) => panic!("expected PreviouslyResumedPanic, got {:?}", e),
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}
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}
|
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|
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// Test returning Rust panic (must be resumed)
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{
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let lua = make_lua(LuaOptions::default())?;
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match catch_unwind(AssertUnwindSafe(|| -> Result<()> {
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let _catched_panic = lua
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.load(
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r#"
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-- Set global
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_, err = pcall(rust_panic_function)
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return err
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|
"#,
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)
|
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.eval::<Value>()?;
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Ok(())
|
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})) {
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Ok(_) => panic!("no panic was detected"),
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Err(_) => {}
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};
|
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assert!(lua.globals().get::<_, Value>("err")? == Value::Nil);
|
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match lua.load("tostring(err)").exec() {
|
|
Ok(_) => panic!("no error was detected"),
|
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Err(Error::CallbackError { ref cause, .. }) => match cause.as_ref() {
|
|
Error::PreviouslyResumedPanic => {}
|
|
e => panic!("expected PreviouslyResumedPanic, got {:?}", e),
|
|
},
|
|
Err(e) => panic!("expected CallbackError, got {:?}", e),
|
|
}
|
|
}
|
|
|
|
// Test representing Rust panic as a string
|
|
match catch_unwind(|| -> Result<()> {
|
|
let lua = make_lua(LuaOptions::default())?;
|
|
lua.load(
|
|
r#"
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|
local _, err = pcall(rust_panic_function)
|
|
error(tostring(err))
|
|
"#,
|
|
)
|
|
.exec()
|
|
}) {
|
|
Ok(Ok(_)) => panic!("no error was detected"),
|
|
Ok(Err(Error::RuntimeError(_))) => {}
|
|
Ok(Err(e)) => panic!("expected RuntimeError, got {:?}", e),
|
|
Err(_) => panic!("panic was detected"),
|
|
}
|
|
|
|
// Test disabling `catch_rust_panics` option / pcall correctness
|
|
match catch_unwind(|| -> Result<()> {
|
|
let lua = make_lua(LuaOptions::new().catch_rust_panics(false))?;
|
|
lua.load(
|
|
r#"
|
|
local ok, err = pcall(function(msg) error(msg) end, "hello")
|
|
assert(not ok and err:find("hello") ~= nil)
|
|
|
|
ok, err = pcall(rust_panic_function, "rust panic from lua")
|
|
-- Nothing to return, panic should be automatically resumed
|
|
"#,
|
|
)
|
|
.exec()
|
|
}) {
|
|
Ok(r) => panic!("no panic was detected: {:?}", r),
|
|
Err(p) => assert!(*p.downcast::<StdString>().unwrap() == "rust panic from lua"),
|
|
}
|
|
|
|
// Test disabling `catch_rust_panics` option / xpcall correctness
|
|
match catch_unwind(|| -> Result<()> {
|
|
let lua = make_lua(LuaOptions::new().catch_rust_panics(false))?;
|
|
lua.load(
|
|
r#"
|
|
local msgh_ok = false
|
|
local msgh = function(err)
|
|
msgh_ok = err ~= nil and err:find("hello") ~= nil
|
|
return err
|
|
end
|
|
local ok, err = xpcall(function(msg) error(msg) end, msgh, "hello")
|
|
assert(not ok and err:find("hello") ~= nil)
|
|
assert(msgh_ok)
|
|
|
|
ok, err = xpcall(rust_panic_function, msgh, "rust panic from lua")
|
|
-- Nothing to return, panic should be automatically resumed
|
|
"#,
|
|
)
|
|
.exec()
|
|
}) {
|
|
Ok(r) => panic!("no panic was detected: {:?}", r),
|
|
Err(p) => assert!(*p.downcast::<StdString>().unwrap() == "rust panic from lua"),
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_result_conversions() -> Result<()> {
|
|
let lua = Lua::new();
|
|
let globals = lua.globals();
|
|
|
|
let err = lua.create_function(|_, ()| {
|
|
Ok(Err::<String, _>(
|
|
"only through failure can we succeed".into_lua_err(),
|
|
))
|
|
})?;
|
|
let ok = lua.create_function(|_, ()| Ok(Ok::<_, Error>("!".to_owned())))?;
|
|
|
|
globals.set("err", err)?;
|
|
globals.set("ok", ok)?;
|
|
|
|
lua.load(
|
|
r#"
|
|
local r, e = err()
|
|
assert(r == nil)
|
|
assert(tostring(e):find("only through failure can we succeed") ~= nil)
|
|
|
|
local r, e = ok()
|
|
assert(r == "!")
|
|
assert(e == nil)
|
|
"#,
|
|
)
|
|
.exec()?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_num_conversion() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
assert_eq!(
|
|
lua.coerce_integer(Value::String(lua.create_string("1")?))?,
|
|
Some(1)
|
|
);
|
|
assert_eq!(
|
|
lua.coerce_integer(Value::String(lua.create_string("1.0")?))?,
|
|
Some(1)
|
|
);
|
|
assert_eq!(
|
|
lua.coerce_integer(Value::String(lua.create_string("1.5")?))?,
|
|
None
|
|
);
|
|
|
|
assert_eq!(
|
|
lua.coerce_number(Value::String(lua.create_string("1")?))?,
|
|
Some(1.0)
|
|
);
|
|
assert_eq!(
|
|
lua.coerce_number(Value::String(lua.create_string("1.0")?))?,
|
|
Some(1.0)
|
|
);
|
|
assert_eq!(
|
|
lua.coerce_number(Value::String(lua.create_string("1.5")?))?,
|
|
Some(1.5)
|
|
);
|
|
|
|
assert_eq!(lua.load("1.0").eval::<i64>()?, 1);
|
|
assert_eq!(lua.load("1.0").eval::<f64>()?, 1.0);
|
|
#[cfg(any(feature = "lua54", feature = "lua53"))]
|
|
assert_eq!(lua.load("1.0").eval::<String>()?, "1.0");
|
|
#[cfg(any(
|
|
feature = "lua52",
|
|
feature = "lua51",
|
|
feature = "luajit",
|
|
feature = "luau"
|
|
))]
|
|
assert_eq!(lua.load("1.0").eval::<String>()?, "1");
|
|
|
|
assert_eq!(lua.load("1.5").eval::<i64>()?, 1);
|
|
assert_eq!(lua.load("1.5").eval::<f64>()?, 1.5);
|
|
assert_eq!(lua.load("1.5").eval::<String>()?, "1.5");
|
|
|
|
assert!(lua.load("-1").eval::<u64>().is_err());
|
|
assert_eq!(lua.load("-1").eval::<i64>()?, -1);
|
|
|
|
assert!(lua.unpack::<u64>(lua.pack(1u128 << 64)?).is_err());
|
|
assert!(lua.load("math.huge").eval::<i64>().is_err());
|
|
|
|
assert_eq!(lua.unpack::<f64>(lua.pack(f32::MAX)?)?, f32::MAX as f64);
|
|
assert_eq!(lua.unpack::<f64>(lua.pack(f32::MIN)?)?, f32::MIN as f64);
|
|
assert_eq!(lua.unpack::<f32>(lua.pack(f64::MAX)?)?, f32::INFINITY);
|
|
assert_eq!(lua.unpack::<f32>(lua.pack(f64::MIN)?)?, f32::NEG_INFINITY);
|
|
|
|
assert_eq!(lua.unpack::<i128>(lua.pack(1i128 << 64)?)?, 1i128 << 64);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_pcall_xpcall() -> Result<()> {
|
|
let lua = Lua::new();
|
|
let globals = lua.globals();
|
|
|
|
// make sure that we handle not enough arguments
|
|
|
|
assert!(lua.load("pcall()").exec().is_err());
|
|
assert!(lua.load("xpcall()").exec().is_err());
|
|
assert!(lua.load("xpcall(function() end)").exec().is_err());
|
|
|
|
// Lua >= 5.2 compatible version of xpcall for 5.1
|
|
#[cfg(feature = "lua51")]
|
|
lua.load(
|
|
r#"
|
|
local xpcall_orig = xpcall
|
|
function xpcall(f, err, ...)
|
|
return xpcall_orig(function() return f(unpack(arg)) end, err)
|
|
end
|
|
"#,
|
|
)
|
|
.exec()?;
|
|
|
|
// Make sure that the return values from are correct on success
|
|
|
|
let (r, e) = lua
|
|
.load("pcall(function(p) return p end, 'foo')")
|
|
.eval::<(bool, String)>()?;
|
|
assert!(r);
|
|
assert_eq!(e, "foo");
|
|
|
|
let (r, e) = lua
|
|
.load("xpcall(function(p) return p end, print, 'foo')")
|
|
.eval::<(bool, String)>()?;
|
|
assert!(r);
|
|
assert_eq!(e, "foo");
|
|
|
|
// Make sure that the return values are correct on errors, and that error handling works
|
|
|
|
lua.load(
|
|
r#"
|
|
pcall_error = nil
|
|
pcall_status, pcall_error = pcall(error, "testerror")
|
|
|
|
xpcall_error = nil
|
|
xpcall_status, _ = xpcall(error, function(err) xpcall_error = err end, "testerror")
|
|
"#,
|
|
)
|
|
.exec()?;
|
|
|
|
assert_eq!(globals.get::<_, bool>("pcall_status")?, false);
|
|
assert_eq!(globals.get::<_, String>("pcall_error")?, "testerror");
|
|
|
|
assert_eq!(globals.get::<_, bool>("xpcall_statusr")?, false);
|
|
#[cfg(any(
|
|
feature = "lua54",
|
|
feature = "lua53",
|
|
feature = "lua52",
|
|
feature = "luajit"
|
|
))]
|
|
assert_eq!(
|
|
globals.get::<_, std::string::String>("xpcall_error")?,
|
|
"testerror"
|
|
);
|
|
#[cfg(feature = "lua51")]
|
|
assert!(globals
|
|
.get::<_, String>("xpcall_error")?
|
|
.to_str()?
|
|
.ends_with(": testerror"));
|
|
|
|
// Make sure that weird xpcall error recursion at least doesn't cause unsafety or panics.
|
|
lua.load(
|
|
r#"
|
|
function xpcall_recursion()
|
|
xpcall(error, function(err) error(err) end, "testerror")
|
|
end
|
|
"#,
|
|
)
|
|
.exec()?;
|
|
let _ = globals
|
|
.get::<_, Function>("xpcall_recursion")?
|
|
.call::<_, ()>(());
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_recursive_mut_callback_error() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let mut v = Some(Box::new(123));
|
|
let f = lua.create_function_mut::<_, (), _>(move |lua, mutate: bool| {
|
|
if mutate {
|
|
v = None;
|
|
} else {
|
|
// Produce a mutable reference
|
|
let r = v.as_mut().unwrap();
|
|
// Whoops, this will recurse into the function and produce another mutable reference!
|
|
lua.globals().get::<_, Function>("f")?.call::<_, ()>(true)?;
|
|
println!("Should not get here, mutable aliasing has occurred!");
|
|
println!("value at {:p}", r as *mut _);
|
|
println!("value is {}", r);
|
|
}
|
|
|
|
Ok(())
|
|
})?;
|
|
lua.globals().set("f", f)?;
|
|
match lua.globals().get::<_, Function>("f")?.call::<_, ()>(false) {
|
|
Err(Error::CallbackError { ref cause, .. }) => match *cause.as_ref() {
|
|
Error::CallbackError { ref cause, .. } => match *cause.as_ref() {
|
|
Error::RecursiveMutCallback { .. } => {}
|
|
ref other => panic!("incorrect result: {:?}", other),
|
|
},
|
|
ref other => panic!("incorrect result: {:?}", other),
|
|
},
|
|
other => panic!("incorrect result: {:?}", other),
|
|
};
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_set_metatable_nil() -> Result<()> {
|
|
let lua = Lua::new();
|
|
lua.load(
|
|
r#"
|
|
a = {}
|
|
setmetatable(a, nil)
|
|
"#,
|
|
)
|
|
.exec()?;
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_named_registry_value() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
lua.set_named_registry_value::<i32>("test", 42)?;
|
|
let f = lua.create_function(move |lua, ()| {
|
|
assert_eq!(lua.named_registry_value::<i32>("test")?, 42);
|
|
Ok(())
|
|
})?;
|
|
|
|
f.call::<_, ()>(())?;
|
|
|
|
lua.unset_named_registry_value("test")?;
|
|
match lua.named_registry_value("test")? {
|
|
Nil => {}
|
|
val => panic!("registry value was not Nil, was {:?}", val),
|
|
};
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_registry_value() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let mut r = Some(lua.create_registry_value::<i32>(42)?);
|
|
let f = lua.create_function_mut(move |lua, ()| {
|
|
if let Some(r) = r.take() {
|
|
assert_eq!(lua.registry_value::<i32>(&r)?, 42);
|
|
lua.remove_registry_value(r).unwrap();
|
|
} else {
|
|
panic!();
|
|
}
|
|
Ok(())
|
|
})?;
|
|
|
|
f.call::<_, ()>(())?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_drop_registry_value() -> Result<()> {
|
|
struct MyUserdata(Arc<()>);
|
|
|
|
impl UserData for MyUserdata {}
|
|
|
|
let lua = Lua::new();
|
|
let rc = Arc::new(());
|
|
|
|
let r = lua.create_registry_value(MyUserdata(rc.clone()))?;
|
|
assert_eq!(Arc::strong_count(&rc), 2);
|
|
|
|
drop(r);
|
|
lua.expire_registry_values();
|
|
|
|
lua.load(r#"collectgarbage("collect")"#).exec()?;
|
|
|
|
assert_eq!(Arc::strong_count(&rc), 1);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_replace_registry_value() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let key = lua.create_registry_value::<i32>(42)?;
|
|
lua.replace_registry_value(&key, "new value")?;
|
|
assert_eq!(lua.registry_value::<String>(&key)?, "new value");
|
|
lua.replace_registry_value(&key, Value::Nil)?;
|
|
assert_eq!(lua.registry_value::<Value>(&key)?, Value::Nil);
|
|
lua.replace_registry_value(&key, 123)?;
|
|
assert_eq!(lua.registry_value::<i32>(&key)?, 123);
|
|
|
|
// It should be impossible to replace (initial) nil value with non-nil
|
|
let key2 = lua.create_registry_value(Value::Nil)?;
|
|
match lua.replace_registry_value(&key2, "abc") {
|
|
Err(Error::RuntimeError(_)) => {}
|
|
r => panic!("expected RuntimeError, got {r:?}"),
|
|
}
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_lua_registry_hash() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let r1 = Arc::new(lua.create_registry_value("value1")?);
|
|
let r2 = Arc::new(lua.create_registry_value("value2")?);
|
|
|
|
let mut map = HashMap::new();
|
|
map.insert(r1.clone(), "value1");
|
|
map.insert(r2.clone(), "value2");
|
|
|
|
assert_eq!(map[&r1], "value1");
|
|
assert_eq!(map[&r2], "value2");
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_lua_registry_ownership() -> Result<()> {
|
|
let lua1 = Lua::new();
|
|
let lua2 = Lua::new();
|
|
|
|
let r1 = lua1.create_registry_value("hello")?;
|
|
let r2 = lua2.create_registry_value("hello")?;
|
|
|
|
assert!(lua1.owns_registry_value(&r1));
|
|
assert!(!lua2.owns_registry_value(&r1));
|
|
assert!(lua2.owns_registry_value(&r2));
|
|
assert!(!lua1.owns_registry_value(&r2));
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_mismatched_registry_key() -> Result<()> {
|
|
let lua1 = Lua::new();
|
|
let lua2 = Lua::new();
|
|
|
|
let r = lua1.create_registry_value("hello")?;
|
|
match lua2.remove_registry_value(r) {
|
|
Err(Error::MismatchedRegistryKey) => {}
|
|
r => panic!("wrong result type for mismatched registry key, {:?}", r),
|
|
};
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_registry_value_reuse() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let r1 = lua.create_registry_value("value1")?;
|
|
let r1_slot = format!("{r1:?}");
|
|
drop(r1);
|
|
|
|
// Previous slot must not be reused by nil value
|
|
let r2 = lua.create_registry_value(Value::Nil)?;
|
|
let r2_slot = format!("{r2:?}");
|
|
assert_ne!(r1_slot, r2_slot);
|
|
drop(r2);
|
|
|
|
// But should be reused by non-nil value
|
|
let r3 = lua.create_registry_value("value3")?;
|
|
let r3_slot = format!("{r3:?}");
|
|
assert_eq!(r1_slot, r3_slot);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_application_data() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
lua.set_app_data("test1");
|
|
lua.set_app_data(vec!["test2"]);
|
|
|
|
// Borrow &str immutably and Vec<&str> mutably
|
|
let s = lua.app_data_ref::<&str>().unwrap();
|
|
let mut v = lua.app_data_mut::<Vec<&str>>().unwrap();
|
|
v.push("test3");
|
|
|
|
// Insert of new data or removal should fail now
|
|
assert!(lua.try_set_app_data::<i32>(123).is_err());
|
|
match catch_unwind(AssertUnwindSafe(|| lua.set_app_data::<i32>(123))) {
|
|
Ok(_) => panic!("expected panic"),
|
|
Err(_) => {}
|
|
}
|
|
match catch_unwind(AssertUnwindSafe(|| lua.remove_app_data::<i32>())) {
|
|
Ok(_) => panic!("expected panic"),
|
|
Err(_) => {}
|
|
}
|
|
|
|
// Check display and debug impls
|
|
assert_eq!(format!("{s}"), "test1");
|
|
assert_eq!(format!("{s:?}"), "\"test1\"");
|
|
|
|
// Borrowing immutably and mutably of the same type is not allowed
|
|
match catch_unwind(AssertUnwindSafe(|| lua.app_data_mut::<&str>().unwrap())) {
|
|
Ok(_) => panic!("expected panic"),
|
|
Err(_) => {}
|
|
}
|
|
drop((s, v));
|
|
|
|
// Test that application data is accessible from anywhere
|
|
let f = lua.create_function(|lua, ()| {
|
|
let mut data1 = lua.app_data_mut::<&str>().unwrap();
|
|
assert_eq!(*data1, "test1");
|
|
*data1 = "test4";
|
|
|
|
let data2 = lua.app_data_ref::<Vec<&str>>().unwrap();
|
|
assert_eq!(*data2, vec!["test2", "test3"]);
|
|
|
|
Ok(())
|
|
})?;
|
|
f.call(())?;
|
|
|
|
assert_eq!(*lua.app_data_ref::<&str>().unwrap(), "test4");
|
|
assert_eq!(
|
|
*lua.app_data_ref::<Vec<&str>>().unwrap(),
|
|
vec!["test2", "test3"]
|
|
);
|
|
|
|
lua.remove_app_data::<Vec<&str>>();
|
|
assert!(matches!(lua.app_data_ref::<Vec<&str>>(), None));
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_recursion() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let f = lua.create_function(move |lua, i: i32| {
|
|
if i < 64 {
|
|
lua.globals()
|
|
.get::<_, Function>("f")?
|
|
.call::<_, ()>(i + 1)?;
|
|
}
|
|
Ok(())
|
|
})?;
|
|
|
|
lua.globals().set("f", f.clone())?;
|
|
f.call::<_, ()>(1)?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_too_many_returns() -> Result<()> {
|
|
let lua = Lua::new();
|
|
let f = lua.create_function(|_, ()| Ok(Variadic::from_iter(1..1000000)))?;
|
|
assert!(f.call::<_, Vec<u32>>(()).is_err());
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_too_many_arguments() -> Result<()> {
|
|
let lua = Lua::new();
|
|
lua.load("function test(...) end").exec()?;
|
|
let args = Variadic::from_iter(1..1000000);
|
|
assert!(lua
|
|
.globals()
|
|
.get::<_, Function>("test")?
|
|
.call::<_, ()>(args)
|
|
.is_err());
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(not(feature = "luajit"))]
|
|
fn test_too_many_recursions() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let f = lua
|
|
.create_function(move |lua, ()| lua.globals().get::<_, Function>("f")?.call::<_, ()>(()))?;
|
|
|
|
lua.globals().set("f", f.clone())?;
|
|
assert!(f.call::<_, ()>(()).is_err());
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_too_many_binds() -> Result<()> {
|
|
let lua = Lua::new();
|
|
let globals = lua.globals();
|
|
lua.load(
|
|
r#"
|
|
function f(...)
|
|
end
|
|
"#,
|
|
)
|
|
.exec()?;
|
|
|
|
let concat = globals.get::<_, Function>("f")?;
|
|
assert!(concat.bind(Variadic::from_iter(1..1000000)).is_err());
|
|
assert!(concat
|
|
.call::<_, ()>(Variadic::from_iter(1..1000000))
|
|
.is_err());
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_ref_stack_exhaustion() {
|
|
match catch_unwind(AssertUnwindSafe(|| -> Result<()> {
|
|
let lua = Lua::new();
|
|
let mut vals = Vec::new();
|
|
for _ in 0..10000000 {
|
|
vals.push(lua.create_table()?);
|
|
}
|
|
Ok(())
|
|
})) {
|
|
Ok(_) => panic!("no panic was detected"),
|
|
Err(p) => assert!(p
|
|
.downcast::<StdString>()
|
|
.unwrap()
|
|
.starts_with("cannot create a Lua reference, out of auxiliary stack space")),
|
|
}
|
|
}
|
|
|
|
#[test]
|
|
fn test_large_args() -> Result<()> {
|
|
let lua = Lua::new();
|
|
let globals = lua.globals();
|
|
|
|
globals.set(
|
|
"c",
|
|
lua.create_function(|_, args: Variadic<usize>| {
|
|
let mut s = 0;
|
|
for i in 0..args.len() {
|
|
s += i;
|
|
assert_eq!(i, args[i]);
|
|
}
|
|
Ok(s)
|
|
})?,
|
|
)?;
|
|
|
|
let f: Function = lua
|
|
.load(
|
|
r#"
|
|
return function(...)
|
|
return c(...)
|
|
end
|
|
"#,
|
|
)
|
|
.eval()?;
|
|
|
|
assert_eq!(
|
|
f.call::<_, usize>((0..100).collect::<Variadic<usize>>())?,
|
|
4950
|
|
);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_large_args_ref() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let f = lua.create_function(|_, args: Variadic<String>| {
|
|
for i in 0..args.len() {
|
|
assert_eq!(args[i], i.to_string());
|
|
}
|
|
Ok(())
|
|
})?;
|
|
|
|
f.call::<_, ()>((0..100).map(|i| i.to_string()).collect::<Variadic<_>>())?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_chunk_env() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let assert: Function = lua.globals().get("assert")?;
|
|
|
|
let env1 = lua.create_table()?;
|
|
env1.set("assert", assert.clone())?;
|
|
|
|
let env2 = lua.create_table()?;
|
|
env2.set("assert", assert)?;
|
|
|
|
lua.load(
|
|
r#"
|
|
test_var = 1
|
|
"#,
|
|
)
|
|
.set_environment(env1.clone())
|
|
.exec()?;
|
|
|
|
lua.load(
|
|
r#"
|
|
assert(test_var == nil)
|
|
test_var = 2
|
|
"#,
|
|
)
|
|
.set_environment(env2.clone())
|
|
.exec()?;
|
|
|
|
assert_eq!(lua.load("test_var").set_environment(env1).eval::<i32>()?, 1);
|
|
assert_eq!(lua.load("test_var").set_environment(env2).eval::<i32>()?, 2);
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_context_thread() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let f = lua
|
|
.load(
|
|
r#"
|
|
local thread = ...
|
|
assert(coroutine.running() == thread)
|
|
"#,
|
|
)
|
|
.into_function()?;
|
|
|
|
#[cfg(any(
|
|
feature = "lua54",
|
|
feature = "lua53",
|
|
feature = "lua52",
|
|
feature = "luajit52"
|
|
))]
|
|
f.call::<_, ()>(lua.current_thread())?;
|
|
|
|
#[cfg(any(
|
|
feature = "lua51",
|
|
all(feature = "luajit", not(feature = "luajit52")),
|
|
feature = "luau"
|
|
))]
|
|
f.call::<_, ()>(Nil)?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(any(feature = "lua51", all(feature = "luajit", not(feature = "luajit52"))))]
|
|
fn test_context_thread_51() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let thread = lua.create_thread(
|
|
lua.load(
|
|
r#"
|
|
function (thread)
|
|
assert(coroutine.running() == thread)
|
|
end
|
|
"#,
|
|
)
|
|
.eval()?,
|
|
)?;
|
|
|
|
thread.resume::<_, ()>(thread.clone())?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "luajit")]
|
|
fn test_jit_version() -> Result<()> {
|
|
let lua = Lua::new();
|
|
let jit: Table = lua.globals().get("jit")?;
|
|
assert!(jit
|
|
.get::<_, String>("version")?
|
|
.to_str()?
|
|
.contains("LuaJIT"));
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_load_from_function() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let i = Arc::new(AtomicU32::new(0));
|
|
let i2 = i.clone();
|
|
let func = lua.create_function(move |lua, modname: String| {
|
|
i2.fetch_add(1, Ordering::Relaxed);
|
|
let t = lua.create_table()?;
|
|
t.set("__name", modname)?;
|
|
Ok(t)
|
|
})?;
|
|
|
|
let t: Table = lua.load_from_function("my_module", func.clone())?;
|
|
assert_eq!(t.get::<_, String>("__name")?, "my_module");
|
|
assert_eq!(i.load(Ordering::Relaxed), 1);
|
|
|
|
let _: Value = lua.load_from_function("my_module", func.clone())?;
|
|
assert_eq!(i.load(Ordering::Relaxed), 1);
|
|
|
|
let func_nil = lua.create_function(move |_, _: String| Ok(Value::Nil))?;
|
|
let v: Value = lua.load_from_function("my_module2", func_nil)?;
|
|
assert_eq!(v, Value::Boolean(true));
|
|
|
|
// Test unloading and loading again
|
|
lua.unload("my_module")?;
|
|
let _: Value = lua.load_from_function("my_module", func)?;
|
|
assert_eq!(i.load(Ordering::Relaxed), 2);
|
|
|
|
// Unloading nonexistent module must not fail
|
|
lua.unload("my_module2")?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_inspect_stack() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
// Not inside any function
|
|
assert!(lua.inspect_stack(0).is_none());
|
|
|
|
let logline = lua.create_function(|lua, msg: StdString| {
|
|
let debug = lua.inspect_stack(1).unwrap(); // caller
|
|
let source = debug.source().short_src.map(core::str::from_utf8);
|
|
let source = source.transpose().unwrap().unwrap_or("?");
|
|
let line = debug.curr_line();
|
|
Ok(format!("{}:{} {}", source, line, msg))
|
|
})?;
|
|
lua.globals().set("logline", logline)?;
|
|
|
|
lua.load(
|
|
r#"
|
|
local function foo()
|
|
local line = logline("hello")
|
|
return line
|
|
end
|
|
local function bar()
|
|
return foo()
|
|
end
|
|
|
|
assert(foo() == '[string "chunk"]:3 hello')
|
|
assert(bar() == '[string "chunk"]:3 hello')
|
|
assert(logline("world") == '[string "chunk"]:12 world')
|
|
"#,
|
|
)
|
|
.set_name("chunk")
|
|
.exec()?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
fn test_multi_states() -> Result<()> {
|
|
let lua = Lua::new();
|
|
|
|
let f = lua.create_function(|_, g: Option<Function>| {
|
|
if let Some(g) = g {
|
|
g.call(())?;
|
|
}
|
|
Ok(())
|
|
})?;
|
|
lua.globals().set("f", f)?;
|
|
|
|
lua.load("f(function() coroutine.wrap(function() f() end)() end)")
|
|
.exec()?;
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "lua54")]
|
|
fn test_warnings() -> Result<()> {
|
|
let lua = Lua::new();
|
|
lua.set_app_data::<Vec<(StdString, bool)>>(Vec::new());
|
|
|
|
lua.set_warning_function(|lua, msg, tocont| {
|
|
let msg = msg.to_string_lossy().to_string();
|
|
lua.app_data_mut::<Vec<(StdString, bool)>>()
|
|
.unwrap()
|
|
.push((msg, tocont));
|
|
Ok(())
|
|
});
|
|
|
|
lua.warning("native warning ...", true)?;
|
|
lua.warning("finish", false)?;
|
|
lua.load(r#"warn("lua warning", "continue")"#).exec()?;
|
|
|
|
lua.remove_warning_function();
|
|
lua.warning("one more warning", false)?;
|
|
|
|
let messages = lua.app_data_ref::<Vec<(StdString, bool)>>().unwrap();
|
|
assert_eq!(
|
|
*messages,
|
|
vec![
|
|
("native warning ...".to_string(), true),
|
|
("finish".to_string(), false),
|
|
("lua warning".to_string(), true),
|
|
("continue".to_string(), false),
|
|
]
|
|
);
|
|
|
|
// Trigger error inside warning
|
|
lua.set_warning_function(|_, _, _| Err(Error::RuntimeError("warning error".to_string())));
|
|
assert!(matches!(
|
|
lua.load(r#"warn("test")"#).exec(),
|
|
Err(Error::CallbackError { cause, .. })
|
|
if matches!(*cause, Error::RuntimeError(ref err) if err == "warning error")
|
|
));
|
|
|
|
Ok(())
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "luajit")]
|
|
#[should_panic]
|
|
fn test_luajit_cdata() {
|
|
let lua = unsafe { Lua::unsafe_new() };
|
|
let _v: Result<Value> = lua
|
|
.load(
|
|
r#"
|
|
local ffi = require("ffi")
|
|
ffi.cdef[[
|
|
void *malloc(size_t size);
|
|
void free(void *ptr);
|
|
]]
|
|
local ptr = ffi.C.malloc(1)
|
|
ffi.C.free(ptr)
|
|
return ptr
|
|
"#,
|
|
)
|
|
.eval();
|
|
}
|
|
|
|
#[test]
|
|
#[cfg(feature = "send")]
|
|
fn test_send() {
|
|
let lua = Lua::new();
|
|
std::thread::spawn(move || {
|
|
let _lua = lua;
|
|
})
|
|
.join()
|
|
.unwrap();
|
|
}
|