mlua_sys/lua54/
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};
7
8// Extra error code for 'luaL_loadfilex'
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: &str = "_LOADED";
13
14// Key, in the registry, for table of preloaded loaders
15pub const LUA_PRELOAD_TABLE: &str = "_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 = "lua54", kind = "raw-dylib"))]
24extern "C-unwind" {
25    pub fn luaL_checkversion_(L: *mut lua_State, ver: lua_Number, sz: usize);
26
27    pub fn luaL_getmetafield(L: *mut lua_State, obj: c_int, e: *const c_char) -> c_int;
28    pub fn luaL_callmeta(L: *mut lua_State, obj: c_int, e: *const c_char) -> c_int;
29    pub fn luaL_tolstring(L: *mut lua_State, idx: c_int, len: *mut usize) -> *const c_char;
30    pub fn luaL_argerror(L: *mut lua_State, arg: c_int, extramsg: *const c_char) -> c_int;
31    pub fn luaL_checklstring(L: *mut lua_State, arg: c_int, l: *mut usize) -> *const c_char;
32    pub fn luaL_optlstring(L: *mut lua_State, arg: c_int, def: *const c_char, l: *mut usize)
33        -> *const c_char;
34    pub fn luaL_checknumber(L: *mut lua_State, arg: c_int) -> lua_Number;
35    pub fn luaL_optnumber(L: *mut lua_State, arg: c_int, def: lua_Number) -> lua_Number;
36    pub fn luaL_checkinteger(L: *mut lua_State, arg: c_int) -> lua_Integer;
37    pub fn luaL_optinteger(L: *mut lua_State, arg: c_int, def: lua_Integer) -> lua_Integer;
38
39    pub fn luaL_checkstack(L: *mut lua_State, sz: c_int, msg: *const c_char);
40    pub fn luaL_checktype(L: *mut lua_State, arg: c_int, t: c_int);
41    pub fn luaL_checkany(L: *mut lua_State, arg: c_int);
42
43    pub fn luaL_newmetatable(L: *mut lua_State, tname: *const c_char) -> c_int;
44    pub fn luaL_setmetatable(L: *mut lua_State, tname: *const c_char);
45    pub fn luaL_testudata(L: *mut lua_State, ud: c_int, tname: *const c_char) -> *mut c_void;
46    pub fn luaL_checkudata(L: *mut lua_State, ud: c_int, tname: *const c_char) -> *mut c_void;
47
48    pub fn luaL_where(L: *mut lua_State, lvl: c_int);
49    pub fn luaL_error(L: *mut lua_State, fmt: *const c_char, ...) -> c_int;
50
51    pub fn luaL_checkoption(
52        L: *mut lua_State,
53        arg: c_int,
54        def: *const c_char,
55        lst: *const *const c_char,
56    ) -> c_int;
57
58    pub fn luaL_fileresult(L: *mut lua_State, stat: c_int, fname: *const c_char) -> c_int;
59    pub fn luaL_execresult(L: *mut lua_State, stat: c_int) -> c_int;
60}
61
62// Pre-defined references
63pub const LUA_NOREF: c_int = -2;
64pub const LUA_REFNIL: c_int = -1;
65
66#[cfg_attr(all(windows, raw_dylib), link(name = "lua54", kind = "raw-dylib"))]
67extern "C-unwind" {
68    pub fn luaL_ref(L: *mut lua_State, t: c_int) -> c_int;
69    pub fn luaL_unref(L: *mut lua_State, t: c_int, r#ref: c_int);
70
71    pub fn luaL_loadfilex(L: *mut lua_State, filename: *const c_char, mode: *const c_char) -> c_int;
72}
73
74#[inline(always)]
75pub unsafe fn luaL_loadfile(L: *mut lua_State, f: *const c_char) -> c_int {
76    luaL_loadfilex(L, f, ptr::null())
77}
78
79#[cfg_attr(all(windows, raw_dylib), link(name = "lua54", kind = "raw-dylib"))]
80extern "C-unwind" {
81    pub fn luaL_loadbufferx(
82        L: *mut lua_State,
83        buff: *const c_char,
84        sz: usize,
85        name: *const c_char,
86        mode: *const c_char,
87    ) -> c_int;
88    pub fn luaL_loadstring(L: *mut lua_State, s: *const c_char) -> c_int;
89
90    pub fn luaL_newstate() -> *mut lua_State;
91
92    pub fn luaL_len(L: *mut lua_State, idx: c_int) -> lua_Integer;
93
94    // TODO: luaL_addgsub
95
96    pub fn luaL_gsub(
97        L: *mut lua_State,
98        s: *const c_char,
99        p: *const c_char,
100        r: *const c_char,
101    ) -> *const c_char;
102
103    pub fn luaL_setfuncs(L: *mut lua_State, l: *const luaL_Reg, nup: c_int);
104
105    pub fn luaL_getsubtable(L: *mut lua_State, idx: c_int, fname: *const c_char) -> c_int;
106
107    pub fn luaL_traceback(L: *mut lua_State, L1: *mut lua_State, msg: *const c_char, level: c_int);
108
109    pub fn luaL_requiref(L: *mut lua_State, modname: *const c_char, openf: lua_CFunction, glb: c_int);
110}
111
112//
113// Some useful macros (implemented as Rust functions)
114//
115
116// TODO: luaL_newlibtable, luaL_newlib
117
118#[inline(always)]
119pub unsafe fn luaL_argcheck(L: *mut lua_State, cond: c_int, arg: c_int, extramsg: *const c_char) {
120    if cond == 0 {
121        luaL_argerror(L, arg, extramsg);
122    }
123}
124
125#[inline(always)]
126pub unsafe fn luaL_checkstring(L: *mut lua_State, n: c_int) -> *const c_char {
127    luaL_checklstring(L, n, ptr::null_mut())
128}
129
130#[inline(always)]
131pub unsafe fn luaL_optstring(L: *mut lua_State, n: c_int, d: *const c_char) -> *const c_char {
132    luaL_optlstring(L, n, d, ptr::null_mut())
133}
134
135#[inline(always)]
136pub unsafe fn luaL_typename(L: *mut lua_State, i: c_int) -> *const c_char {
137    lua::lua_typename(L, lua::lua_type(L, i))
138}
139
140#[inline(always)]
141pub unsafe fn luaL_dofile(L: *mut lua_State, filename: *const c_char) -> c_int {
142    let status = luaL_loadfile(L, filename);
143    if status == 0 {
144        lua::lua_pcall(L, 0, lua::LUA_MULTRET, 0)
145    } else {
146        status
147    }
148}
149
150#[inline(always)]
151pub unsafe fn luaL_dostring(L: *mut lua_State, s: *const c_char) -> c_int {
152    let status = luaL_loadstring(L, s);
153    if status == 0 {
154        lua::lua_pcall(L, 0, lua::LUA_MULTRET, 0)
155    } else {
156        status
157    }
158}
159
160#[inline(always)]
161pub unsafe fn luaL_getmetatable(L: *mut lua_State, n: *const c_char) {
162    lua::lua_getfield(L, lua::LUA_REGISTRYINDEX, n);
163}
164
165// luaL_opt would be implemented here but it is undocumented, so it's omitted
166
167#[inline(always)]
168pub unsafe fn luaL_loadbuffer(L: *mut lua_State, s: *const c_char, sz: usize, n: *const c_char) -> c_int {
169    luaL_loadbufferx(L, s, sz, n, ptr::null())
170}
171
172pub unsafe fn luaL_loadbufferenv(
173    L: *mut lua_State,
174    data: *const c_char,
175    size: usize,
176    name: *const c_char,
177    mode: *const c_char,
178    mut env: c_int,
179) -> c_int {
180    if env != 0 {
181        env = lua::lua_absindex(L, env);
182    }
183    let status = luaL_loadbufferx(L, data, size, name, mode);
184    if status == lua::LUA_OK && env != 0 {
185        lua::lua_pushvalue(L, env);
186        lua::lua_setupvalue(L, -2, 1);
187    }
188    status
189}
190
191//
192// TODO: Generic Buffer Manipulation
193//
mlua_sys/lua54/lauxlib.rs

mlua_sys/lua54/
lauxlib.rs
