mlua_sys/lua52/
lauxlib.rs

1//! Contains definitions from `lauxlib.h`.
2
3use std::os::raw::{c_char, c_int, c_void};
4use std::ptr;
5
6use super::lua::{self, lua_CFunction, lua_Integer, lua_Number, lua_State, lua_Unsigned};
7
8// Extra error code for 'luaL_load'
9pub const LUA_ERRFILE: c_int = lua::LUA_ERRERR + 1;
10
11// Key, in the registry, for table of loaded modules
12pub const LUA_LOADED_TABLE: *const c_char = cstr!("_LOADED");
13
14// Key, in the registry, for table of preloaded loaders
15pub const LUA_PRELOAD_TABLE: *const c_char = cstr!("_PRELOAD");
16
17#[repr(C)]
18pub struct luaL_Reg {
19    pub name: *const c_char,
20    pub func: lua_CFunction,
21}
22
23#[cfg_attr(all(windows, raw_dylib), link(name = "lua52", kind = "raw-dylib"))]
24unsafe extern "C-unwind" {
25    pub fn luaL_checkversion_(L: *mut lua_State, ver: lua_Number);
26
27    #[link_name = "luaL_getmetafield"]
28    pub fn luaL_getmetafield_(L: *mut lua_State, obj: c_int, e: *const c_char) -> c_int;
29    pub fn luaL_callmeta(L: *mut lua_State, obj: c_int, e: *const c_char) -> c_int;
30    #[link_name = "luaL_tolstring"]
31    pub fn luaL_tolstring_(L: *mut lua_State, idx: c_int, len: *mut usize) -> *const c_char;
32    pub fn luaL_argerror(L: *mut lua_State, arg: c_int, extramsg: *const c_char) -> c_int;
33    pub fn luaL_checklstring(L: *mut lua_State, arg: c_int, l: *mut usize) -> *const c_char;
34    pub fn luaL_optlstring(L: *mut lua_State, arg: c_int, def: *const c_char, l: *mut usize)
35        -> *const c_char;
36    pub fn luaL_checknumber(L: *mut lua_State, arg: c_int) -> lua_Number;
37    pub fn luaL_optnumber(L: *mut lua_State, arg: c_int, def: lua_Number) -> lua_Number;
38    pub fn luaL_checkinteger(L: *mut lua_State, arg: c_int) -> lua_Integer;
39    pub fn luaL_optinteger(L: *mut lua_State, arg: c_int, def: lua_Integer) -> lua_Integer;
40    pub fn luaL_checkunsigned(L: *mut lua_State, arg: c_int) -> lua_Unsigned;
41    pub fn luaL_optunsigned(L: *mut lua_State, arg: c_int, def: lua_Unsigned) -> lua_Unsigned;
42
43    pub fn luaL_checkstack(L: *mut lua_State, sz: c_int, msg: *const c_char);
44    pub fn luaL_checktype(L: *mut lua_State, arg: c_int, t: c_int);
45    pub fn luaL_checkany(L: *mut lua_State, arg: c_int);
46
47    #[link_name = "luaL_newmetatable"]
48    pub fn luaL_newmetatable_(L: *mut lua_State, tname: *const c_char) -> c_int;
49    pub fn luaL_setmetatable(L: *mut lua_State, tname: *const c_char);
50    pub fn luaL_testudata(L: *mut lua_State, ud: c_int, tname: *const c_char) -> *mut c_void;
51    pub fn luaL_checkudata(L: *mut lua_State, ud: c_int, tname: *const c_char) -> *mut c_void;
52
53    pub fn luaL_where(L: *mut lua_State, lvl: c_int);
54    pub fn luaL_error(L: *mut lua_State, fmt: *const c_char, ...) -> c_int;
55
56    pub fn luaL_checkoption(
57        L: *mut lua_State,
58        arg: c_int,
59        def: *const c_char,
60        lst: *const *const c_char,
61    ) -> c_int;
62
63    pub fn luaL_fileresult(L: *mut lua_State, stat: c_int, fname: *const c_char) -> c_int;
64    pub fn luaL_execresult(L: *mut lua_State, stat: c_int) -> c_int;
65}
66
67// Pre-defined references
68pub const LUA_NOREF: c_int = -2;
69pub const LUA_REFNIL: c_int = -1;
70
71#[cfg_attr(all(windows, raw_dylib), link(name = "lua52", kind = "raw-dylib"))]
72unsafe extern "C-unwind" {
73    pub fn luaL_ref(L: *mut lua_State, t: c_int) -> c_int;
74    pub fn luaL_unref(L: *mut lua_State, t: c_int, r#ref: c_int);
75
76    pub fn luaL_loadfilex(L: *mut lua_State, filename: *const c_char, mode: *const c_char) -> c_int;
77}
78
79#[inline(always)]
80pub unsafe fn luaL_loadfile(L: *mut lua_State, f: *const c_char) -> c_int {
81    luaL_loadfilex(L, f, ptr::null())
82}
83
84#[cfg_attr(all(windows, raw_dylib), link(name = "lua52", kind = "raw-dylib"))]
85unsafe extern "C-unwind" {
86    pub fn luaL_loadbufferx(
87        L: *mut lua_State,
88        buff: *const c_char,
89        sz: usize,
90        name: *const c_char,
91        mode: *const c_char,
92    ) -> c_int;
93    pub fn luaL_loadstring(L: *mut lua_State, s: *const c_char) -> c_int;
94
95    pub fn luaL_newstate() -> *mut lua_State;
96
97    pub fn luaL_len(L: *mut lua_State, idx: c_int) -> lua_Integer;
98
99    pub fn luaL_gsub(
100        L: *mut lua_State,
101        s: *const c_char,
102        p: *const c_char,
103        r: *const c_char,
104    ) -> *const c_char;
105
106    pub fn luaL_setfuncs(L: *mut lua_State, l: *const luaL_Reg, nup: c_int);
107
108    pub fn luaL_getsubtable(L: *mut lua_State, idx: c_int, fname: *const c_char) -> c_int;
109
110    pub fn luaL_traceback(L: *mut lua_State, L1: *mut lua_State, msg: *const c_char, level: c_int);
111
112    #[link_name = "luaL_requiref"]
113    pub fn luaL_requiref_(L: *mut lua_State, modname: *const c_char, openf: lua_CFunction, glb: c_int);
114}
115
116//
117// Some useful macros (implemented as Rust functions)
118//
119
120// TODO: luaL_newlibtable, luaL_newlib
121
122#[inline(always)]
123pub unsafe fn luaL_argcheck(L: *mut lua_State, cond: c_int, arg: c_int, extramsg: *const c_char) {
124    if cond == 0 {
125        luaL_argerror(L, arg, extramsg);
126    }
127}
128
129#[inline(always)]
130pub unsafe fn luaL_checkstring(L: *mut lua_State, n: c_int) -> *const c_char {
131    luaL_checklstring(L, n, ptr::null_mut())
132}
133
134#[inline(always)]
135pub unsafe fn luaL_optstring(L: *mut lua_State, n: c_int, d: *const c_char) -> *const c_char {
136    luaL_optlstring(L, n, d, ptr::null_mut())
137}
138
139#[inline(always)]
140pub unsafe fn luaL_typename(L: *mut lua_State, i: c_int) -> *const c_char {
141    lua::lua_typename(L, lua::lua_type(L, i))
142}
143
144#[inline(always)]
145pub unsafe fn luaL_dofile(L: *mut lua_State, filename: *const c_char) -> c_int {
146    let status = luaL_loadfile(L, filename);
147    if status == 0 {
148        lua::lua_pcall(L, 0, lua::LUA_MULTRET, 0)
149    } else {
150        status
151    }
152}
153
154#[inline(always)]
155pub unsafe fn luaL_dostring(L: *mut lua_State, s: *const c_char) -> c_int {
156    let status = luaL_loadstring(L, s);
157    if status == 0 {
158        lua::lua_pcall(L, 0, lua::LUA_MULTRET, 0)
159    } else {
160        status
161    }
162}
163
164#[inline(always)]
165pub unsafe fn luaL_getmetatable(L: *mut lua_State, n: *const c_char) {
166    lua::lua_getfield_(L, lua::LUA_REGISTRYINDEX, n);
167}
168
169// luaL_opt would be implemented here but it is undocumented, so it's omitted
170
171#[inline(always)]
172pub unsafe fn luaL_loadbuffer(L: *mut lua_State, s: *const c_char, sz: usize, n: *const c_char) -> c_int {
173    luaL_loadbufferx(L, s, sz, n, ptr::null())
174}
175
176//
177// TODO: Generic Buffer Manipulation
178//
mlua_sys/lua52/lauxlib.rs

mlua_sys/lua52/
lauxlib.rs
