Initial commit

engines/grim/lua/lauxlib.cpp

@@ -0,0 +1,107 @@
+/*
+** Auxiliary functions for building Lua libraries
+** See Copyright Notice in lua.h
+*/
+
+
+/* Please Notice: This file uses only the official API of Lua
+** Any function declared here could be written as an application
+** function. With care, these functions can be used by other libraries.
+*/
+#define FORBIDDEN_SYMBOL_EXCEPTION_vsprintf
+
+#include "engines/grim/lua/lauxlib.h"
+#include "engines/grim/lua/lua.h"
+#include "engines/grim/lua/luadebug.h"
+#include "engines/grim/lua/lmem.h"
+
+namespace Grim {
+
+void luaL_argerror(int32 numarg, const char *extramsg) {
+	const char *funcname;
+	lua_getobjname(lua_stackedfunction(0), &funcname);
+	if (!funcname)
+		funcname = "???";
+	if (!extramsg)
+		luaL_verror("bad argument #%d to function `%.50s'", numarg, funcname);
+	else
+		luaL_verror("bad argument #%d to function `%.50s' (%.100s)", numarg, funcname, extramsg);
+}
+
+const char *luaL_check_string(int32 numArg) {
+	lua_Object o = lua_getparam(numArg);
+	luaL_arg_check(lua_isstring(o), numArg, "string expected");
+	return lua_getstring(o);
+}
+
+const char *luaL_opt_string(int32 numArg, const char *def) {
+	return (lua_getparam(numArg) == LUA_NOOBJECT) ? def : luaL_check_string(numArg);
+}
+
+float luaL_check_number(int32 numArg) {
+	lua_Object o = lua_getparam(numArg);
+	luaL_arg_check(lua_isnumber(o), numArg, "number expected");
+	return lua_getnumber(o);
+}
+
+float luaL_opt_number(int32 numArg, float def) {
+	return (lua_getparam(numArg) == LUA_NOOBJECT) ? def : luaL_check_number(numArg);
+}
+
+lua_Object luaL_tablearg(int32 arg) {
+	lua_Object o = lua_getparam(arg);
+	luaL_arg_check(lua_istable(o), arg, "table expected");
+	return o;
+}
+
+lua_Object luaL_functionarg(int32 arg) {
+	lua_Object o = lua_getparam(arg);
+	luaL_arg_check(lua_isfunction(o), arg, "function expected");
+	return o;
+}
+
+lua_Object luaL_nonnullarg(int32 numArg) {
+	lua_Object o = lua_getparam(numArg);
+	luaL_arg_check(o != LUA_NOOBJECT, numArg, "value expected");
+	return o;
+}
+
+luaL_libList *list_of_libs = nullptr;
+
+void luaL_addlibtolist(luaL_reg *l, int32 n) {
+	luaL_libList *list = (luaL_libList *)luaM_malloc(sizeof(luaL_libList));
+	list->list = l;
+	list->number = n;
+	list->next = list_of_libs;
+	list_of_libs = list;
+}
+
+void lua_removelibslists() {
+	luaL_libList *list = list_of_libs;
+	while (list) {
+		luaL_libList *nextList = list->next;
+		luaM_free(list);
+		list = nextList;
+	}
+	list_of_libs = nullptr;
+}
+
+void luaL_openlib(luaL_reg *l, int32 n) {
+	int32 i;
+	lua_open();  // make sure lua is already open
+	for (i = 0; i < n; i++)
+		lua_register(l[i].name, l[i].func);
+	luaL_addlibtolist(l, n);
+}
+
+void luaL_verror(const char *fmt, ...) {
+	char buff[500];
+	va_list argp;
+
+	va_start(argp, fmt);
+	vsnprintf(buff, 100, fmt, argp);
+	va_end(argp);
+	lua_error(buff);
+}
+
+} // end of namespace Grim