add SkLuaCanvas

third_party/lua/src/lapi.h

+/*
+** $Id: lapi.h,v 2.7 2009/11/27 15:37:59 roberto Exp $
+** Auxiliary functions from Lua API
+** See Copyright Notice in lua.h
+*/
+
+#ifndef lapi_h
+#define lapi_h
+
+
+#include "llimits.h"
+#include "lstate.h"
+
+#define api_incr_top(L)   {L->top++; api_check(L, L->top <= L->ci->top, \
+                                "stack overflow");}
+
+#define adjustresults(L,nres) \
+    { if ((nres) == LUA_MULTRET && L->ci->top < L->top) L->ci->top = L->top; }
+
+#define api_checknelems(L,n)    api_check(L, (n) < (L->top - L->ci->func), \
+                                  "not enough elements in the stack")
+
+
+#endif