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-rw-r--r--README.md14
-rw-r--r--src/lauxlib.js90
2 files changed, 92 insertions, 12 deletions
diff --git a/README.md b/README.md
index 4c46672..95d0a60 100644
--- a/README.md
+++ b/README.md
@@ -47,17 +47,7 @@
- [ ] `file:setvbuf()`
- [ ] `file:__gc()`
- [x] C API
-- [ ] Auxiliary library
- - [x] ...
- - [ ] `luaL_addsize`
- - [ ] `luaL_checkoption`
- - [ ] `luaL_checkversion`
- - [ ] `luaL_newlibtable`
- - [ ] `luaL_optnumber`
- - [ ] `luaL_prepbuffer`
- - [ ] `luaL_pushresultsize`
- - [ ] `luaL_ref`
- - [ ] `luaL_unref`
+- [x] Auxiliary library
- [ ] Run [Lua test suite](https://github.com/lua/tests)
- [x] `calls.lua`
- [x] `constructs.lua` (`_soft`)
@@ -83,7 +73,7 @@
- [ ] `tpack.lua`
- [ ] `utf8.lua`
- [ ] `verybig.lua`
-- [ ] DOM API binding
+- [ ] DOM API binding: [https://github.com/daurnimator/fengari-interop](https://github.com/daurnimator/fengari-interop)
## References
diff --git a/src/lauxlib.js b/src/lauxlib.js
index 38402c2..0754aab 100644
--- a/src/lauxlib.js
+++ b/src/lauxlib.js
@@ -11,6 +11,7 @@ const LUA_PRELOAD_TABLE = "_PRELOAD";
const LUA_FILEHANDLE = lua.to_luastring("FILE*", true);
+const LUAL_NUMSIZES = 4*16 + 8;
class luaL_Buffer {
constructor() {
@@ -269,6 +270,13 @@ const luaL_checkudata = function(L, ud, tname) {
return p;
};
+const luaL_checkoption = function(L, arg, def, lst) {
+ let name = def ? luaL_optstring(L, arg, def) : luaL_checkstring(L, arg);
+ for (let i = 0; lst[i]; i++)
+ if (lst[i].join('|') === name.join('|'))
+ return i;
+ return luaL_argerror(L, arg, lua.lua_pushfstring(L, lua.to_luastring("invalid option '%s'"), name));
+};
const tag_error = function(L, arg, tag) {
typeerror(L, arg, lua.lua_typename(L, tag));
@@ -331,6 +339,10 @@ const luaL_checknumber = function(L, arg) {
return d;
};
+const luaL_optnumber = function(L, arg, def) {
+ return luaL_opt(L, luaL_checknumber, arg, def);
+};
+
const luaL_checkinteger = function(L, arg) {
let d = lua.lua_tointeger(L, arg);
if (d === false)
@@ -356,6 +368,12 @@ const luaL_buffinitsize = function(L, B, sz) {
return B;
};
+const LUAL_BUFFERSIZE = 8192;
+
+const luaL_prepbuffer = function(B) {
+ return luaL_prepbuffsize(B, LUAL_BUFFERSIZE);
+};
+
const luaL_addlstring = function(B, s, l) {
B.b = B.b.concat(s.slice(0, l));
};
@@ -371,6 +389,15 @@ const luaL_addchar = function(B, c) {
B.b.push(c);
};
+const luaL_addsize = function(B, s) {
+ B.n += s;
+};
+
+const luaL_pushresultsize = function(B, sz) {
+ luaL_addsize(B, sz);
+ luaL_pushresult(B);
+};
+
const luaL_addvalue = function(B) {
let L = B.L;
let s = lua.lua_tostring(L, -1);
@@ -610,11 +637,50 @@ const luaL_checkstack = function(L, space, msg) {
}
};
+const luaL_newlibtable = function(L) {
+ lua.lua_createtable(L);
+};
+
const luaL_newlib = function(L, l) {
lua.lua_createtable(L);
luaL_setfuncs(L, l, 0);
};
+/* predefined references */
+const LUA_NOREF = -2;
+const LUA_REFNIL = -1;
+
+const luaL_ref = function(L, t) {
+ let ref;
+ if (lua.lua_isnil(L, -1)) {
+ lua.lua_pop(L, 1); /* remove from stack */
+ return LUA_REFNIL; /* 'nil' has a unique fixed reference */
+ }
+ t = lua.lua_absindex(L, t);
+ lua.lua_rawgeti(L, t, 0); /* get first free element */
+ ref = lua.lua_tointeger(L, -1); /* ref = t[freelist] */
+ lua.lua_pop(L, 1); /* remove it from stack */
+ if (ref !== 0) { /* any free element? */
+ lua.lua_rawgeti(L, t, ref); /* remove it from list */
+ lua.lua_rawseti(L, t, 0); /* (t[freelist] = t[ref]) */
+ }
+ else /* no free elements */
+ ref = lua.lua_rawlen(L, t) + 1; /* get a new reference */
+ lua.lua_rawseti(L, t, ref);
+ return ref;
+};
+
+
+const luaL_unref = function(L, t, ref) {
+ if (ref >= 0) {
+ t = lua.lua_absindex(L, t);
+ lua.lua_rawgeti(L, t, 0);
+ lua.lua_rawseti(L, t, ref); /* t[ref] = t[freelist] */
+ lua.lua_pushinteger(L, ref);
+ lua.lua_rawseti(L, t, 0); /* t[freelist] = ref */
+ }
+};
+
// Only with Node
if (!WEB) {
const fs = require('fs');
@@ -761,12 +827,28 @@ const lua_writestringerror = function(s) {
else console.error(s);
};
+
+const luaL_checkversion = function(L) {
+ let ver = lua.LUA_VERSION_NUM;
+ let sz = LUAL_NUMSIZES;
+ let v = lua.lua_version(L);
+ if (sz != LUAL_NUMSIZES) /* check numeric types */
+ luaL_error(L, lua.to_luastring("core and library have incompatible numeric types"));
+ if (v != lua.lua_version(null))
+ luaL_error(L, lua.to_luastring("multiple Lua VMs detected"));
+ else if (v !== ver)
+ luaL_error(L, lua.to_luastring("version mismatch: app. needs %f, Lua core provides %f"), ver, v);
+};
+
module.exports.LUA_FILEHANDLE = LUA_FILEHANDLE;
module.exports.LUA_LOADED_TABLE = LUA_LOADED_TABLE;
+module.exports.LUA_NOREF = LUA_NOREF;
module.exports.LUA_PRELOAD_TABLE = LUA_PRELOAD_TABLE;
+module.exports.LUA_REFNIL = LUA_REFNIL;
module.exports.luaL_Buffer = luaL_Buffer;
module.exports.luaL_addchar = luaL_addchar;
module.exports.luaL_addlstring = luaL_addlstring;
+module.exports.luaL_addsize = luaL_addsize;
module.exports.luaL_addstring = luaL_addstring;
module.exports.luaL_addvalue = luaL_addvalue;
module.exports.luaL_argcheck = luaL_argcheck;
@@ -778,10 +860,12 @@ module.exports.luaL_checkany = luaL_checkany;
module.exports.luaL_checkinteger = luaL_checkinteger;
module.exports.luaL_checklstring = luaL_checklstring;
module.exports.luaL_checknumber = luaL_checknumber;
+module.exports.luaL_checkoption = luaL_checkoption;
module.exports.luaL_checkstack = luaL_checkstack;
module.exports.luaL_checkstring = luaL_checkstring;
module.exports.luaL_checktype = luaL_checktype;
module.exports.luaL_checkudata = luaL_checkudata;
+module.exports.luaL_checkversion = luaL_checkversion;
module.exports.luaL_dostring = luaL_dostring;
module.exports.luaL_error = luaL_error;
module.exports.luaL_execresult = luaL_execresult;
@@ -795,14 +879,19 @@ module.exports.luaL_loadbuffer = luaL_loadbuffer;
module.exports.luaL_loadbufferx = luaL_loadbufferx;
module.exports.luaL_loadstring = luaL_loadstring;
module.exports.luaL_newlib = luaL_newlib;
+module.exports.luaL_newlibtable = luaL_newlibtable;
module.exports.luaL_newmetatable = luaL_newmetatable;
module.exports.luaL_newstate = luaL_newstate;
module.exports.luaL_opt = luaL_opt;
module.exports.luaL_optinteger = luaL_optinteger;
module.exports.luaL_optlstring = luaL_optlstring;
+module.exports.luaL_optnumber = luaL_optnumber;
module.exports.luaL_optstring = luaL_optstring;
+module.exports.luaL_prepbuffer = luaL_prepbuffer;
module.exports.luaL_prepbuffsize = luaL_prepbuffsize;
module.exports.luaL_pushresult = luaL_pushresult;
+module.exports.luaL_pushresultsize = luaL_pushresultsize;
+module.exports.luaL_ref = luaL_ref;
module.exports.luaL_requiref = luaL_requiref;
module.exports.luaL_setfuncs = luaL_setfuncs;
module.exports.luaL_setmetatable = luaL_setmetatable;
@@ -810,5 +899,6 @@ module.exports.luaL_testudata = luaL_testudata;
module.exports.luaL_tolstring = luaL_tolstring;
module.exports.luaL_traceback = luaL_traceback;
module.exports.luaL_typename = luaL_typename;
+module.exports.luaL_unref = luaL_unref;
module.exports.luaL_where = luaL_where;
module.exports.lua_writestringerror = lua_writestringerror;
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-11 00:19:22 +0000