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macro_rules! bug_msg {
($arg:expr) => {
concat!(
"mlua internal error: ",
$arg,
" (this is a bug, please file an issue)"
)
};
}
macro_rules! cstr {
($s:expr) => {
concat!($s, "\0") as *const str as *const [::std::os::raw::c_char]
as *const ::std::os::raw::c_char
};
}
macro_rules! mlua_panic {
($msg:expr) => {
panic!(bug_msg!($msg))
};
($msg:expr,) => {
mlua_panic!($msg)
};
($msg:expr, $($arg:expr),+) => {
panic!(bug_msg!($msg), $($arg),+)
};
($msg:expr, $($arg:expr),+,) => {
mlua_panic!($msg, $($arg),+)
};
}
macro_rules! mlua_assert {
($cond:expr, $msg:expr) => {
assert!($cond, bug_msg!($msg));
};
($cond:expr, $msg:expr,) => {
mlua_assert!($cond, $msg);
};
($cond:expr, $msg:expr, $($arg:expr),+) => {
assert!($cond, bug_msg!($msg), $($arg),+);
};
($cond:expr, $msg:expr, $($arg:expr),+,) => {
mlua_assert!($cond, $msg, $($arg),+);
};
}
macro_rules! mlua_debug_assert {
($cond:expr, $msg:expr) => {
debug_assert!($cond, bug_msg!($msg));
};
($cond:expr, $msg:expr,) => {
mlua_debug_assert!($cond, $msg);
};
($cond:expr, $msg:expr, $($arg:expr),+) => {
debug_assert!($cond, bug_msg!($msg), $($arg),+);
};
($cond:expr, $msg:expr, $($arg:expr),+,) => {
mlua_debug_assert!($cond, $msg, $($arg),+);
};
}
macro_rules! mlua_expect {
($res:expr, $msg:expr) => {
$res.expect(bug_msg!($msg))
};
($res:expr, $msg:expr,) => {
mlua_expect!($res, $msg)
};
}
#[cfg(feature = "module")]
#[doc(hidden)]
#[macro_export]
macro_rules! require_module_feature {
() => {};
}
#[cfg(not(feature = "module"))]
#[doc(hidden)]
#[macro_export]
macro_rules! require_module_feature {
() => {
compile_error!("Feature `module` must be enabled in the `mlua` crate");
};
}
macro_rules! protect_lua {
($state:expr, $nargs:expr, $nresults:expr, $f:expr) => {
crate::util::protect_lua_closure($state, $nargs, $nresults, $f)
};
($state:expr, $nargs:expr, $nresults:expr, fn($state_inner:ident) $code:expr) => {{
unsafe extern "C" fn do_call($state_inner: *mut ffi::lua_State) -> ::std::os::raw::c_int {
$code;
$nresults
}
crate::util::protect_lua_call($state, $nargs, do_call)
}};
}
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