fix(5.0): prevent the string passed to luaL_loadbuffer from being truncated

Author: YoRyan

src/binding-factory.ts

@@ -167,12 +167,18 @@ const lauxBindings: Record<string, lauxBindingFactoryFunc> = {
             luaL_loadstring: function(L: LuaState, s: string) {
                 return (this as LauxLib).luaL_loadbuffer(L, s, s.length, s);
             },
+            luaL_loadbuffer: function(L: LuaState, s: string, slen: number, name: string) {
+                // Terrible, awful hack to prevent the end of the string from being mangled by the C wrapper
+                const pad = "              ";
+                const loadbuffer = luaGlue.cwrap("luaL_loadbuffer", "number", ["number", "string", "number", "string"]);
+                return loadbuffer(L, s + pad, slen + pad.length, name);
+            },
             luaL_newstate: luaGlue.cwrap("lua_open", "number", []),
         }
     },
-    "<=5.1.x": function(luaGlue: LuaEmscriptenModule, _lua: Lua) {
+    "5.1.x": function(luaGlue: LuaEmscriptenModule, _lua: Lua) {
         return {
-            luaL_loadbuffer: luaGlue.cwrap("luaL_loadbuffer", "number", ["number", "string", "number", "string"]),
+            luaL_loadbuffer: luaGlue.cwrap("luaL_loadbuffer", "number", ["number", "string", "number", "string"])
         }
     },
     ">=5.1.0": function(luaGlue: LuaEmscriptenModule, lua: Lua) {