From 79a630503c8f609094f6fca8a489fd965f424d17 Mon Sep 17 00:00:00 2001 From: Benoit Giannangeli Date: Thu, 23 Mar 2017 10:11:27 +0100 Subject: Test for require and fs instead of testing for window --- src/lbaselib.js | 85 +++++++++++++++++++++++++++++++-------------------------- 1 file changed, 46 insertions(+), 39 deletions(-) (limited to 'src/lbaselib.js') diff --git a/src/lbaselib.js b/src/lbaselib.js index 83b3c33..762838c 100644 --- a/src/lbaselib.js +++ b/src/lbaselib.js @@ -333,46 +333,53 @@ const base_funcs = { }; // Only with Node -if (typeof window === "undefined") { - - const load_aux = function(L, status, envidx) { - if (status === TS.LUA_OK) { - if (envidx !== 0) { /* 'env' parameter? */ - lapi.lua_pushvalue(L, envidx); /* environment for loaded function */ - if (!lapi.lua_setupvalue(L, -2, 1)) /* set it as 1st upvalue */ - lapi.lua_pop(L, 1); /* remove 'env' if not used by previous call */ +if (typeof require === "function") { + + let fs = false; + try { + fs = require('fs'); + } catch (e) {} + + if (fs) { + const load_aux = function(L, status, envidx) { + if (status === TS.LUA_OK) { + if (envidx !== 0) { /* 'env' parameter? */ + lapi.lua_pushvalue(L, envidx); /* environment for loaded function */ + if (!lapi.lua_setupvalue(L, -2, 1)) /* set it as 1st upvalue */ + lapi.lua_pop(L, 1); /* remove 'env' if not used by previous call */ + } + return 1; + } else { /* error (message is on top of the stack) */ + lapi.lua_pushnil(L); + lapi.lua_insert(L, -2); /* put before error message */ + return 2; /* return nil plus error message */ } - return 1; - } else { /* error (message is on top of the stack) */ - lapi.lua_pushnil(L); - lapi.lua_insert(L, -2); /* put before error message */ - return 2; /* return nil plus error message */ - } - }; - - const luaB_loadfile = function(L) { - let fname = lauxlib.luaL_optstring(L, 1, null); - let mode = lauxlib.luaL_optstring(L, 2, null); - let env = !lapi.lua_isnone(L, 3) ? 3 : 0; /* 'env' index or 0 if no 'env' */ - let status = lauxlib.luaL_loadfilex(L, fname, mode); - return load_aux(L, status, env); - }; - - const dofilecont = function(L, d1, d2) { - return lapi.lua_gettop(L) - 1; - }; - - const luaB_dofile = function(L) { - let fname = lauxlib.luaL_optstring(L, 1, null); - lapi.lua_settop(L, 1); - if (lauxlib.luaL_loadfile(L, fname) !== TS.LUA_OK) - return lapi.lua_error(L); - lapi.lua_callk(L, 0, lua.LUA_MULTRET, 0, dofilecont); - return dofilecont(L, 0, 0); - }; - - base_funcs.loadfile = luaB_loadfile; - base_funcs.dofile = luaB_dofile; + }; + + const luaB_loadfile = function(L) { + let fname = lauxlib.luaL_optstring(L, 1, null); + let mode = lauxlib.luaL_optstring(L, 2, null); + let env = !lapi.lua_isnone(L, 3) ? 3 : 0; /* 'env' index or 0 if no 'env' */ + let status = lauxlib.luaL_loadfilex(L, fname, mode); + return load_aux(L, status, env); + }; + + const dofilecont = function(L, d1, d2) { + return lapi.lua_gettop(L) - 1; + }; + + const luaB_dofile = function(L) { + let fname = lauxlib.luaL_optstring(L, 1, null); + lapi.lua_settop(L, 1); + if (lauxlib.luaL_loadfile(L, fname) !== TS.LUA_OK) + return lapi.lua_error(L); + lapi.lua_callk(L, 0, lua.LUA_MULTRET, 0, dofilecont); + return dofilecont(L, 0, 0); + }; + + base_funcs.loadfile = luaB_loadfile; + base_funcs.dofile = luaB_dofile; + } } -- cgit v1.2.3-54-g00ecf