From 354d659f577fc27969784400c8c1e6090756da7b Mon Sep 17 00:00:00 2001
From: Benoit Giannangeli <giann008@gmail.com>
Date: Fri, 28 Apr 2017 14:42:41 +0200
Subject: os.exit

---
 src/lapi.js   |  5 +++++
 src/loslib.js | 17 +++++++++++++++++
 src/lstate.js | 12 ++++++++++++
 src/lua.js    |  6 ++++--
 4 files changed, 38 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/lapi.js b/src/lapi.js
index a758a66..e813313 100644
--- a/src/lapi.js
+++ b/src/lapi.js
@@ -757,6 +757,10 @@ const lua_isnil = function(L, n) {
     return lua_type(L, n) === CT.LUA_TNIL;
 };
 
+const lua_isboolean = function(L, n) {
+    return lua_type(L, n) === CT.LUA_TBOOLEAN;
+};
+
 const lua_isnone = function(L, n) {
     return lua_type(L, n) === CT.LUA_TNONE;
 };
@@ -1037,6 +1041,7 @@ module.exports.lua_gettop            = lua_gettop;
 module.exports.lua_getupvalue        = lua_getupvalue;
 module.exports.lua_getuservalue      = lua_getuservalue;
 module.exports.lua_insert            = lua_insert;
+module.exports.lua_isboolean         = lua_isboolean;
 module.exports.lua_iscfunction       = lua_iscfunction;
 module.exports.lua_isfunction        = lua_isfunction;
 module.exports.lua_isinteger         = lua_isinteger;
diff --git a/src/loslib.js b/src/loslib.js
index 3892d35..a715aec 100644
--- a/src/loslib.js
+++ b/src/loslib.js
@@ -66,6 +66,23 @@ const syslib = {
     "time": os_time
 };
 
+// Only with Node
+if (process && process.exit) {
+    const os_exit = function(L) {
+        let status;
+        if (lua.lua_isboolean(L, 1))
+            status = (lua.lua_toboolean(L, 1) ? 0 : 1);
+        else
+            status = lauxlib.luaL_optinteger(L, 1, 0);
+        if (lua.lua_toboolean(L, 2))
+            lua.lua_close(L);
+        if (L) process.exit(status);  /* 'if' to avoid warnings for unreachable 'return' */
+        return 0;
+    };
+
+    syslib.exit = os_exit;
+}
+
 const luaopen_os = function(L) {
     lauxlib.luaL_newlib(L, syslib);
     return 1;
diff --git a/src/lstate.js b/src/lstate.js
index 4ecb92f..4b4aaa5 100644
--- a/src/lstate.js
+++ b/src/lstate.js
@@ -8,6 +8,7 @@ const lobject              = require('./lobject.js');
 const ldo                  = require('./ldo.js');
 const lapi                 = require('./lapi.js');
 const ltable               = require('./ltable.js');
+const lfunc                = require('./lfunc.js');
 const luaT_init            = require('./ltm.js').luaT_init;
 const CT                   = defs.constant_types;
 const TS                   = defs.thread_status;
@@ -167,6 +168,16 @@ const lua_newstate = function() {
     return L;
 };
 
+const close_state = function(L) {
+    let g = L.l_G;
+    lfunc.luaF_close(L, L.stack);  /* close all upvalues for this thread */
+};
+
+const lua_close = function(L) {
+    L = L.l_G.mainthread;  /* only the main thread can be closed */
+    close_state(L);
+};
+
 module.exports.lua_State      = lua_State;
 module.exports.CallInfo       = CallInfo;
 module.exports.CIST_OAH       = (1<<0);  /* original value of 'allowhook' */
@@ -178,5 +189,6 @@ module.exports.CIST_TAIL      = (1<<5);  /* call was tail called */
 module.exports.CIST_HOOKYIELD = (1<<6);  /* last hook called yielded */
 module.exports.CIST_LEQ       = (1<<7);  /* using __lt for __le */
 module.exports.CIST_FIN       = (1<<8);   /* call is running a finalizer */
+module.exports.lua_close      = lua_close;
 module.exports.lua_newstate   = lua_newstate;
 module.exports.lua_newthread  = lua_newthread;
diff --git a/src/lua.js b/src/lua.js
index e6e3f02..09fb0e6 100644
--- a/src/lua.js
+++ b/src/lua.js
@@ -87,6 +87,7 @@ module.exports.lua_atpanic             = lapi.lua_atpanic;
 module.exports.lua_call                = lapi.lua_call;
 module.exports.lua_callk               = lapi.lua_callk;
 module.exports.lua_checkstack          = lapi.lua_checkstack;
+module.exports.lua_close               = lstate.lua_close;
 module.exports.lua_compare             = lapi.lua_compare;
 module.exports.lua_concat              = lapi.lua_concat;
 module.exports.lua_copy                = lapi.lua_copy;
@@ -111,6 +112,7 @@ module.exports.lua_gettop              = lapi.lua_gettop;
 module.exports.lua_getupvalue          = lapi.lua_getupvalue;
 module.exports.lua_getuservalue        = lapi.lua_getuservalue;
 module.exports.lua_insert              = lapi.lua_insert;
+module.exports.lua_isboolean           = lapi.lua_isboolean;
 module.exports.lua_iscfunction         = lapi.lua_iscfunction;
 module.exports.lua_isfunction          = lapi.lua_isfunction;
 module.exports.lua_isinteger           = lapi.lua_isinteger;
@@ -125,8 +127,8 @@ module.exports.lua_isuserdata          = lapi.lua_isuserdata;
 module.exports.lua_isyieldable         = ldo.lua_isyieldable;
 module.exports.lua_len                 = lapi.lua_len;
 module.exports.lua_load                = lapi.lua_load;
-module.exports.lua_newtable            = lapi.lua_newtable;
 module.exports.lua_newstate            = lstate.lua_newstate;
+module.exports.lua_newtable            = lapi.lua_newtable;
 module.exports.lua_newthread           = lstate.lua_newthread;
 module.exports.lua_newuserdata         = lapi.lua_newuserdata;
 module.exports.lua_next                = lapi.lua_next;
@@ -157,8 +159,8 @@ module.exports.lua_rawlen              = lapi.lua_rawlen;
 module.exports.lua_rawset              = lapi.lua_rawset;
 module.exports.lua_rawsetp             = lapi.lua_rawsetp;
 module.exports.lua_remove              = lapi.lua_remove;
-module.exports.lua_resume              = ldo.lua_resume;
 module.exports.lua_replace             = lapi.lua_replace;
+module.exports.lua_resume              = ldo.lua_resume;
 module.exports.lua_rotate              = lapi.lua_rotate;
 module.exports.lua_setfield            = lapi.lua_setfield;
 module.exports.lua_setglobal           = lapi.lua_setglobal;
-- 
cgit v1.2.3-54-g00ecf