lua_tonumberx

lua_tonumber should return 0 if argument is not convertible to a number.
But luaL_checknumber uses lua_tonumberx and tests isnum.

-> lua_tonumberx return false if argument is not convertible to a
number.

3 files changed, 7 insertions, 1 deletions

diff --git a/src/lapi.js b/src/lapi.js
index 1dfd112..90533f7 100644
--- a/src/lapi.js
+++ b/src/lapi.js
@@ -720,6 +720,10 @@ const lua_tonumber = function(L, idx) {
     return n === false ? 0 : n;
 };
 
+const lua_tonumberx = function(L, idx) {
+    return lvm.tonumber(index2addr(L, idx));
+};
+
 const lua_touserdata = function(L, idx) {
     let o = index2addr(L, idx);
     switch (o.ttnov()) {
@@ -1224,6 +1228,7 @@ module.exports.lua_tojsstring        = lua_tojsstring;
 module.exports.lua_toljsstring       = lua_toljsstring;
 module.exports.lua_tolstring         = lua_tolstring;
 module.exports.lua_tonumber          = lua_tonumber;
+module.exports.lua_tonumberx         = lua_tonumberx;
 module.exports.lua_topointer         = lua_topointer;
 module.exports.lua_toproxy           = lua_toproxy;
 module.exports.lua_tostring          = lua_tostring;
diff --git a/src/lauxlib.js b/src/lauxlib.js
index 0672c14..3851ee7 100644
--- a/src/lauxlib.js
+++ b/src/lauxlib.js
@@ -333,7 +333,7 @@ const interror = function(L, arg) {
 };
 
 const luaL_checknumber = function(L, arg) {
-    let d = lua.lua_tonumber(L, arg);
+    let d = lua.lua_tonumberx(L, arg);
     if (d === false)
         tag_error(L, arg, lua.LUA_TNUMBER);
     return d;
diff --git a/src/lua.js b/src/lua.js
index c921982..07edaf1 100644
--- a/src/lua.js
+++ b/src/lua.js
@@ -200,6 +200,7 @@ module.exports.lua_tojsstring          = lapi.lua_tojsstring;
 module.exports.lua_toljsstring         = lapi.lua_toljsstring;
 module.exports.lua_tolstring           = lapi.lua_tolstring;
 module.exports.lua_tonumber            = lapi.lua_tonumber;
+module.exports.lua_tonumberx           = lapi.lua_tonumberx;
 module.exports.lua_topointer           = lapi.lua_topointer;
 module.exports.lua_toproxy             = lapi.lua_toproxy;
 module.exports.lua_tostring            = lapi.lua_tostring;