27 lines
734 B
Rust
27 lines
734 B
Rust
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use std::ffi::CStr;
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use crate::State;
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use mlua_sys as lua;
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pub unsafe fn ensure_type(state: &State, typ: i32, idx: i32) -> crate::Result<()> {
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let s = state.state_ptr();
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let lua_type = lua::lua_type(s, idx);
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if lua_type == typ {
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Ok(())
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} else {
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let exp_tyname = lua::lua_typename(s, typ);
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let exp_cstr = CStr::from_ptr(exp_tyname);
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let exp_s = exp_cstr.to_str()
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.expect("Lua type has invalid bytes!");
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let tyname = lua::lua_typename(s, lua_type);
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let cstr = CStr::from_ptr(tyname);
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let s = cstr.to_str()
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.expect("Lua type has invalid bytes!");
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Err(crate::Error::UnexpectedType(exp_s.to_string(), s.to_string()))
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}
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}
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