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-rw-r--r--src/lapi.js29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/lapi.js b/src/lapi.js
index 72ff554..32a9873 100644
--- a/src/lapi.js
+++ b/src/lapi.js
@@ -182,6 +182,11 @@ const lua_insert = function(L, idx) {
lua_rotate(L, idx, 1);
};
+const lua_replace = function(L, idx) {
+ lua_copy(L, -1, idx);
+ lua_pop(L, 1);
+};
+
/*
** push functions (JS -> stack)
*/
@@ -424,6 +429,19 @@ const lua_createtable = function(L, narray, nrec) {
assert(L.top <= L.ci.top, "stack overflow");
};
+const lua_setupvalue = function(L, funcindex, n) {
+ let fi = index2addr(L, funcindex);
+ assert(1 < L.top - L.ci.funcOff, "not enough elements in the stack");
+ let aux = aux_upvalue(fi, n);
+ let name = aux.name;
+ let val = aux.val;
+ if (name) {
+ L.top--;
+ setobj(L, val, L.top);
+ }
+ return name;
+};
+
const lua_newtable = function(L) {
lua_createtable(L, 0, 0);
};
@@ -595,6 +613,14 @@ const lua_typename = function(L, t) {
return ltm.ttypename(t);
};
+const lua_isnil = function(L, n) {
+ return lua_type(L, n) === CT.LUA_TNIL;
+};
+
+const lua_isnone = function(L, n) {
+ return lua_type(L, n) === CT.LUA_TNONE;
+};
+
const lua_isnoneornil = function(L, n) {
return lua_type(L, n) <= 0;
};
@@ -798,6 +824,8 @@ module.exports.lua_gettable = lua_gettable;
module.exports.lua_gettop = lua_gettop;
module.exports.lua_insert = lua_insert;
module.exports.lua_isinteger = lua_isinteger;
+module.exports.lua_isnil = lua_isnil;
+module.exports.lua_isnone = lua_isnone;
module.exports.lua_isnoneornil = lua_isnoneornil;
module.exports.lua_isnumber = lua_isnumber;
module.exports.lua_isstring = lua_isstring;
@@ -830,6 +858,7 @@ module.exports.lua_rawgeti = lua_rawgeti;
module.exports.lua_rawlen = lua_rawlen;
module.exports.lua_rawset = lua_rawset;
module.exports.lua_remove = lua_remove;
+module.exports.lua_replace = lua_replace;
module.exports.lua_rotate = lua_rotate;
module.exports.lua_setfield = lua_setfield;
module.exports.lua_setglobal = lua_setglobal;