104 lines
2.9 KiB
Rust
104 lines
2.9 KiB
Rust
//! Low level bindings to Lua 5.4/5.3/5.2/5.1 including LuaJIT.
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#![allow(non_camel_case_types, non_snake_case, dead_code)]
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use std::os::raw::c_int;
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#[cfg(feature = "lua54")]
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pub use lua54::*;
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#[cfg(feature = "lua53")]
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pub use lua53::*;
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#[cfg(feature = "lua52")]
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pub use lua52::*;
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#[cfg(any(feature = "lua51", feature = "luajit"))]
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pub use lua51::*;
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#[cfg(feature = "luau")]
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pub use luau::*;
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#[cfg(any(feature = "lua54", feature = "lua53", feature = "lua52"))]
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pub const LUA_MAX_UPVALUES: c_int = 255;
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#[cfg(any(feature = "lua51", all(feature = "luajit", not(feature = "vendored"))))]
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pub const LUA_MAX_UPVALUES: c_int = 60;
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#[cfg(all(feature = "luajit", feature = "vendored"))]
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pub const LUA_MAX_UPVALUES: c_int = 120;
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#[cfg(feature = "luau")]
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pub const LUA_MAX_UPVALUES: c_int = 200;
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// I believe `luaL_traceback` < 5.4 requires this much free stack to not error.
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// 5.4 uses `luaL_Buffer`
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pub const LUA_TRACEBACK_STACK: c_int = 11;
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// The minimum alignment guaranteed by the architecture. This value is used to
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// add fast paths for low alignment values.
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// Copied from https://github.com/rust-lang/rust/blob/master/library/std/src/sys/common/alloc.rs
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#[cfg(all(any(
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target_arch = "x86",
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target_arch = "arm",
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target_arch = "mips",
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target_arch = "powerpc",
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target_arch = "powerpc64",
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target_arch = "sparc",
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target_arch = "asmjs",
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target_arch = "wasm32",
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target_arch = "hexagon",
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all(target_arch = "riscv32", not(target_os = "espidf")),
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all(target_arch = "xtensa", not(target_os = "espidf")),
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)))]
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pub const SYS_MIN_ALIGN: usize = 8;
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#[cfg(all(any(
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target_arch = "x86_64",
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target_arch = "aarch64",
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target_arch = "mips64",
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target_arch = "s390x",
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target_arch = "sparc64",
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target_arch = "riscv64",
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target_arch = "wasm64",
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)))]
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pub const SYS_MIN_ALIGN: usize = 16;
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// The allocator on the esp-idf platform guarentees 4 byte alignment.
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#[cfg(all(any(
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all(target_arch = "riscv32", target_os = "espidf"),
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all(target_arch = "xtensa", target_os = "espidf"),
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)))]
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pub const SYS_MIN_ALIGN: usize = 4;
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// Hack to avoid stripping a few unused Lua symbols that could be imported
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// by C modules in unsafe mode
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#[cfg(not(feature = "luau"))]
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pub(crate) fn keep_lua_symbols() {
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let mut symbols: Vec<*const extern "C" fn()> = Vec::new();
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symbols.push(lua_atpanic as _);
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symbols.push(lua_isuserdata as _);
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symbols.push(lua_tocfunction as _);
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symbols.push(luaL_loadstring as _);
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symbols.push(luaL_openlibs as _);
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#[cfg(any(feature = "lua54", feature = "lua53", feature = "lua52"))]
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{
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symbols.push(lua_getglobal as _);
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symbols.push(lua_setglobal as _);
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symbols.push(luaL_setfuncs as _);
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}
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}
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#[cfg(feature = "lua54")]
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pub mod lua54;
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#[cfg(feature = "lua53")]
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pub mod lua53;
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#[cfg(feature = "lua52")]
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pub mod lua52;
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#[cfg(any(feature = "lua51", feature = "luajit"))]
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pub mod lua51;
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#[cfg(feature = "luau")]
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pub mod luau;
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