NAME

pmc/luaany.pmc - Lua abstract base class

DESCRIPTION

LuaAny provides an abstract base class for some Lua types.

PMC Inheritance Summary

 Class                  Parents
 -----------------------------------------------
 LuaBoolean             LuaAny, Default
 LuaClosure             Closure, LuaAny, Default
 LuaFunction            Sub, LuaAny, Default
 LuaNil                 LuaAny, Default
 LuaNumber              LuaAny, Default
 LuaString              LuaAny, Default
 LuaTable               LuaAny, Default
 LuaThread              LuaAny, Default
 LuaUserdata            LuaAny, Default

PMC "Attribute" Summary

 Class                  Metatable       Environment     Userdata
     accessor           get_metatable   getfenv         get_attr_str (getattribute)
     mutator            set_metatable   setfenv         set_attr_str (setattribute)
     default value      nil             nil             NULL
 ------------------------------------------------------------------
 LuaBoolean             nil             -               -
 LuaClosure             nil             yes             -
 LuaFunction            nil             yes             -
 LuaNil                 nil             -               -
 LuaNumber              nil             -               -
 LuaString              yes (common)    -               -
 LuaTable               yes             -               -
 LuaThread              nil             yes             -
 LuaUserdata            yes             yes             yes

The metatable supports the OO mecanism.

Methods

void morph(INTVAL type)

Changes the PMC to a PMC of a new type

INTVAL get_bool()

Returns true.

void *get_pointer()

Returns the address of the PMC.

void assign_pmc(PMC *value)

PMC *get_pmc_keyed(PMC *key)

Throws an exception.

void set_pmc_keyed(PMC *key, PMC *value)

Throws an exception.

PMC *neg(PMC *dest)

void i_neg()

Throws an exception.

PMC *logical_not(PMC *dest)

Common implementation

INTVAL defined()

Always returns true.

void *invoke(void *next)

Throws an exception.

non-Vtable Methods

void add(PMC *value, PMC *dest)

void i_add(PMC *value)

void subtract(PMC *value, PMC *dest)

void i_substract (PMC *value)

void multiply(PMC *value, PMC *dest)

void i_multiply(PMC *value)

void divide(PMC *value, PMC *dest)

void i_divide(PMC *value)

PMC *modulus(PMC *value, PMC *dest)

void i_modulus(PMC *value)

PMC *pow(PMC *value, PMC *dest)

void i_pow(PMC *value)

PMC *concatenate(PMC *value, PMC *dest)

void i_concatenate(PMC *value)

Throws an exception.

INTVAL is_equal(PMC *value)

INTVAL cmp(PMC *value)

Specific Methods

PMC *get_metatable()

PMC *len()

PMC *tonumber()

Returns nil.

PMC *tostring()

Return a Lua string.

Common implementation (use __tostring or get_string).

AUTHORS

Francois Perrad.