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Diffstat (limited to 'tolua++-1.0.93/src/lib/tolua_is.c')
-rw-r--r--tolua++-1.0.93/src/lib/tolua_is.c621
1 files changed, 0 insertions, 621 deletions
diff --git a/tolua++-1.0.93/src/lib/tolua_is.c b/tolua++-1.0.93/src/lib/tolua_is.c
deleted file mode 100644
index add337d19..000000000
--- a/tolua++-1.0.93/src/lib/tolua_is.c
+++ /dev/null
@@ -1,621 +0,0 @@
-/* tolua: functions to check types.
-** Support code for Lua bindings.
-** Written by Waldemar Celes
-** TeCGraf/PUC-Rio
-** Apr 2003
-** $Id: $
-*/
-
-/* This code is free software; you can redistribute it and/or modify it.
-** The software provided hereunder is on an "as is" basis, and
-** the author has no obligation to provide maintenance, support, updates,
-** enhancements, or modifications.
-*/
-
-#include "tolua++.h"
-#include "lauxlib.h"
-
-#include <stdlib.h>
-#include <string.h>
-
-/* a fast check if a is b, without parameter validation
- i.e. if b is equal to a or a superclass of a. */
-TOLUA_API int tolua_fast_isa(lua_State *L, int mt_indexa, int mt_indexb, int super_index)
-{
- int result;
- if (lua_rawequal(L,mt_indexa,mt_indexb))
- result = 1;
- else
- {
- if (super_index) {
- lua_pushvalue(L, super_index);
- } else {
- lua_pushliteral(L,"tolua_super");
- lua_rawget(L,LUA_REGISTRYINDEX); /* stack: super */
- };
- lua_pushvalue(L,mt_indexa); /* stack: super mta */
- lua_rawget(L,-2); /* stack: super super[mta] */
- lua_pushvalue(L,mt_indexb); /* stack: super super[mta] mtb */
- lua_rawget(L,LUA_REGISTRYINDEX); /* stack: super super[mta] typenameB */
- lua_rawget(L,-2); /* stack: super super[mta] bool */
- result = lua_toboolean(L,-1);
- lua_pop(L,3);
- }
- return result;
-}
-
-/* Push and returns the corresponding object typename */
-TOLUA_API const char* tolua_typename (lua_State* L, int lo)
-{
- int tag = lua_type(L,lo);
- if (tag == LUA_TNONE)
- lua_pushstring(L,"[no object]");
- else if (tag != LUA_TUSERDATA && tag != LUA_TTABLE)
- lua_pushstring(L,lua_typename(L,tag));
- else if (tag == LUA_TUSERDATA)
- {
- if (!lua_getmetatable(L,lo))
- lua_pushstring(L,lua_typename(L,tag));
- else
- {
- lua_rawget(L,LUA_REGISTRYINDEX);
- if (!lua_isstring(L,-1))
- {
- lua_pop(L,1);
- lua_pushstring(L,"[undefined]");
- }
- }
- }
- else /* is table */
- {
- lua_pushvalue(L,lo);
- lua_rawget(L,LUA_REGISTRYINDEX);
- if (!lua_isstring(L,-1))
- {
- lua_pop(L,1);
- lua_pushstring(L,"table");
- }
- else
- {
- lua_pushstring(L,"class ");
- lua_insert(L,-2);
- lua_concat(L,2);
- }
- }
- return lua_tostring(L,-1);
-}
-
-TOLUA_API void tolua_error (lua_State* L, const char* msg, tolua_Error* err)
-{
- if (msg[0] == '#')
- {
- const char* expected = err->type;
- const char* provided = tolua_typename(L,err->index);
- if (msg[1]=='f')
- {
- int narg = err->index;
- if (err->array)
- luaL_error(L,"%s\n argument #%d is array of '%s'; array of '%s' expected.\n",
- msg+2,narg,provided,expected);
- else
- luaL_error(L,"%s\n argument #%d is '%s'; '%s' expected.\n",
- msg+2,narg,provided,expected);
- }
- else if (msg[1]=='v')
- {
- if (err->array)
- luaL_error(L,"%s\n value is array of '%s'; array of '%s' expected.\n",
- msg+2,provided,expected);
- else
- luaL_error(L,"%s\n value is '%s'; '%s' expected.\n",
- msg+2,provided,expected);
- }
- }
- else
- luaL_error(L,msg);
-}
-
-/* the equivalent of lua_is* for usertable */
-static int lua_isusertable (lua_State* L, int lo, const const char* type)
-{
- int r = 0;
- if (lo < 0) lo = lua_gettop(L)+lo+1;
- lua_pushvalue(L,lo);
- lua_rawget(L,LUA_REGISTRYINDEX); /* get registry[t] */
- if (lua_isstring(L,-1))
- {
- r = strcmp(lua_tostring(L,-1),type)==0;
- if (!r)
- {
- /* try const */
- lua_pushstring(L,"const ");
- lua_insert(L,-2);
- lua_concat(L,2);
- r = lua_isstring(L,-1) && strcmp(lua_tostring(L,-1),type)==0;
- }
- }
- lua_pop(L, 1);
- return r;
-}
-
-int push_table_instance(lua_State* L, int lo) {
-
- if (lua_istable(L, lo)) {
-
- lua_pushstring(L, ".c_instance");
- lua_gettable(L, lo);
- if (lua_isuserdata(L, -1)) {
-
- lua_replace(L, lo);
- return 1;
- } else {
-
- lua_pop(L, 1);
- return 0;
- };
- } else {
- return 0;
- };
-
- return 0;
-};
-
-/* the equivalent of lua_is* for usertype */
-static int lua_isusertype (lua_State* L, int lo, const char* type)
-{
- if (!lua_isuserdata(L,lo)) {
- if (!push_table_instance(L, lo)) {
- return 0;
- };
- };
- {
- /* check if it is of the same type */
- int r;
- const char *tn;
- if (lua_getmetatable(L,lo)) /* if metatable? */
- {
- lua_rawget(L,LUA_REGISTRYINDEX); /* get registry[mt] */
- tn = lua_tostring(L,-1);
- r = tn && (strcmp(tn,type) == 0);
- lua_pop(L, 1);
- if (r)
- return 1;
- else
- {
- /* check if it is a specialized class */
- lua_pushstring(L,"tolua_super");
- lua_rawget(L,LUA_REGISTRYINDEX); /* get super */
- lua_getmetatable(L,lo);
- lua_rawget(L,-2); /* get super[mt] */
- if (lua_istable(L,-1))
- {
- int b;
- lua_pushstring(L,type);
- lua_rawget(L,-2); /* get super[mt][type] */
- b = lua_toboolean(L,-1);
- lua_pop(L,3);
- if (b)
- return 1;
- }
- }
- }
- }
- return 0;
-}
-
-TOLUA_API int tolua_isnoobj (lua_State* L, int lo, tolua_Error* err)
-{
- if (lua_gettop(L)<abs(lo))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = "[no object]";
- return 0;
-}
-
-TOLUA_API int tolua_isboolean (lua_State* L, int lo, int def, tolua_Error* err)
-{
- if (def && lua_gettop(L)<abs(lo))
- return 1;
- if (lua_isnil(L,lo) || lua_isboolean(L,lo))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = "boolean";
- return 0;
-}
-
-TOLUA_API int tolua_isnumber (lua_State* L, int lo, int def, tolua_Error* err)
-{
- if (def && lua_gettop(L)<abs(lo))
- return 1;
- if (lua_isnumber(L,lo))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = "number";
- return 0;
-}
-
-TOLUA_API int tolua_isstring (lua_State* L, int lo, int def, tolua_Error* err)
-{
- if (def && lua_gettop(L)<abs(lo))
- return 1;
- if (lua_isnil(L,lo) || lua_isstring(L,lo))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = "string";
- return 0;
-}
-
-TOLUA_API int tolua_istable (lua_State* L, int lo, int def, tolua_Error* err)
-{
- if (def && lua_gettop(L)<abs(lo))
- return 1;
- if (lua_istable(L,lo))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = "table";
- return 0;
-}
-
-TOLUA_API int tolua_isusertable (lua_State* L, int lo, const char* type, int def, tolua_Error* err)
-{
- if (def && lua_gettop(L)<abs(lo))
- return 1;
- if (lua_isusertable(L,lo,type))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = type;
- return 0;
-}
-
-
-TOLUA_API int tolua_isuserdata (lua_State* L, int lo, int def, tolua_Error* err)
-{
- if (def && lua_gettop(L)<abs(lo))
- return 1;
- if (lua_isnil(L,lo) || lua_isuserdata(L,lo))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = "userdata";
- return 0;
-}
-
-TOLUA_API int tolua_isvaluenil (lua_State* L, int lo, tolua_Error* err) {
-
- if (lua_gettop(L)<abs(lo))
- return 0; /* somebody else should chack this */
- if (!lua_isnil(L, lo))
- return 0;
-
- err->index = lo;
- err->array = 0;
- err->type = "value";
- return 1;
-};
-
-TOLUA_API int tolua_isvalue (lua_State* L, int lo, int def, tolua_Error* err)
-{
- if (def || abs(lo)<=lua_gettop(L)) /* any valid index */
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = "value";
- return 0;
-}
-
-TOLUA_API int tolua_isusertype (lua_State* L, int lo, const char* type, int def, tolua_Error* err)
-{
- if (def && lua_gettop(L)<abs(lo))
- return 1;
- if (lua_isnil(L,lo) || lua_isusertype(L,lo,type))
- return 1;
- err->index = lo;
- err->array = 0;
- err->type = type;
- return 0;
-}
-
-TOLUA_API int tolua_isvaluearray
- (lua_State* L, int lo, int dim, int def, tolua_Error* err)
-{
- if (!tolua_istable(L,lo,def,err))
- return 0;
- else
- return 1;
-}
-
-TOLUA_API int tolua_isbooleanarray
- (lua_State* L, int lo, int dim, int def, tolua_Error* err)
-{
- if (!tolua_istable(L,lo,def,err))
- return 0;
- else
- {
- int i;
- for (i=1; i<=dim; ++i)
- {
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isboolean(L,-1)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "boolean";
- return 0;
- }
- lua_pop(L,1);
- }
- }
- return 1;
-}
-
-TOLUA_API int tolua_isnumberarray
- (lua_State* L, int lo, int dim, int def, tolua_Error* err)
-{
- if (!tolua_istable(L,lo,def,err))
- return 0;
- else
- {
- int i;
- for (i=1; i<=dim; ++i)
- {
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!lua_isnumber(L,-1) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "number";
- return 0;
- }
- lua_pop(L,1);
- }
- }
- return 1;
-}
-
-TOLUA_API int tolua_isstringarray
- (lua_State* L, int lo, int dim, int def, tolua_Error* err)
-{
- if (!tolua_istable(L,lo,def,err))
- return 0;
- else
- {
- int i;
- for (i=1; i<=dim; ++i)
- {
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isstring(L,-1)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "string";
- return 0;
- }
- lua_pop(L,1);
- }
- }
- return 1;
-}
-
-TOLUA_API int tolua_istablearray
- (lua_State* L, int lo, int dim, int def, tolua_Error* err)
-{
- if (!tolua_istable(L,lo,def,err))
- return 0;
- else
- {
- int i;
- for (i=1; i<=dim; ++i)
- {
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (! lua_istable(L,-1) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "table";
- return 0;
- }
- lua_pop(L,1);
- }
- }
- return 1;
-}
-
-TOLUA_API int tolua_isuserdataarray
- (lua_State* L, int lo, int dim, int def, tolua_Error* err)
-{
- if (!tolua_istable(L,lo,def,err))
- return 0;
- else
- {
- int i;
- for (i=1; i<=dim; ++i)
- {
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isuserdata(L,-1)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "userdata";
- return 0;
- }
- lua_pop(L,1);
- }
- }
- return 1;
-}
-
-TOLUA_API int tolua_isusertypearray
- (lua_State* L, int lo, const char* type, int dim, int def, tolua_Error* err)
-{
- if (!tolua_istable(L,lo,def,err))
- return 0;
- else
- {
- int i;
- for (i=1; i<=dim; ++i)
- {
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isuserdata(L,-1)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->type = type;
- err->array = 1;
- return 0;
- }
- lua_pop(L,1);
- }
- }
- return 1;
-}
-
-#if 0
-int tolua_isbooleanfield
- (lua_State* L, int lo, int i, int def, tolua_Error* err)
-{
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isboolean(L,-1)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "boolean";
- return 0;
- }
- lua_pop(L,1);
- return 1;
-}
-
-int tolua_isnumberfield
- (lua_State* L, int lo, int i, int def, tolua_Error* err)
-{
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!lua_isnumber(L,-1) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "number";
- return 0;
- }
- lua_pop(L,1);
- return 1;
-}
-
-int tolua_isstringfield
- (lua_State* L, int lo, int i, int def, tolua_Error* err)
-{
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isstring(L,-1)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "string";
- return 0;
- }
- lua_pop(L,1);
- return 1;
-}
-
-int tolua_istablefield
- (lua_State* L, int lo, int i, int def, tolua_Error* err)
-{
- lua_pushnumber(L,i+1);
- lua_gettable(L,lo);
- if (! lua_istable(L,-1) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "table";
- return 0;
- }
- lua_pop(L,1);
-}
-
-int tolua_isusertablefield
- (lua_State* L, int lo, const char* type, int i, int def, tolua_Error* err)
-{
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (! lua_isusertable(L,-1,type) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = type;
- return 0;
- }
- lua_pop(L,1);
- return 1;
-}
-
-int tolua_isuserdatafield
- (lua_State* L, int lo, int i, int def, tolua_Error* err)
-{
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isuserdata(L,-1)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->array = 1;
- err->type = "userdata";
- return 0;
- }
- lua_pop(L,1);
- return 1;
-}
-
-int tolua_isusertypefield
- (lua_State* L, int lo, const char* type, int i, int def, tolua_Error* err)
-{
- lua_pushnumber(L,i);
- lua_gettable(L,lo);
- if (!(lua_isnil(L,-1) || lua_isusertype(L,-1,type)) &&
- !(def && lua_isnil(L,-1))
- )
- {
- err->index = lo;
- err->type = type;
- err->array = 1;
- return 0;
- }
- lua_pop(L,1);
- return 1;
-}
-
-#endif
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