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/*
FALCON - The Falcon Programming Language.
FILE: attrib_ext.cpp
Facilities handling attributes.
-------------------------------------------------------------------
Author: Giancarlo Niccolai
Begin: Sat, 11 Jul 2009 23:26:40 +0200
-------------------------------------------------------------------
(C) Copyright 2009: the FALCON developers (see list in AUTHORS file)
See LICENSE file for licensing details.
*/
#include <falcon/setup.h>
#include <falcon/module.h>
#include <falcon/attribmap.h>
#include <falcon/corefunc.h>
#include "core_module.h"
/*#
@beginmodule core
*/
namespace Falcon {
namespace core {
static void inner_make_item( VarDef* vd, Item& itm )
{
switch( vd->type() )
{
case VarDef::t_bool: itm.setBoolean( vd->asBool() ); break;
case VarDef::t_int: itm.setInteger( vd->asInteger() ); break;
case VarDef::t_num: itm.setNumeric( vd->asNumeric() ); break;
case VarDef::t_string:
{
itm.setString( new CoreString( *vd->asString() ) );
}
break;
default:
itm.setNil();
}
}
static CoreDict* interal_make_attrib_dict( Map* attr )
{
CoreDict* cd = new CoreDict( new LinearDict( attr->size() ) );
MapIterator iter = attr->begin();
while( iter.hasCurrent() )
{
VarDef* vd = *(VarDef**) iter.currentValue();
Item temp;
inner_make_item( vd, temp );
cd->put( new CoreString(
*(String*) iter.currentKey() ),
temp
);
iter.next();
}
return cd;
}
/*#
@function attributes
@brief Returns a dictionary containing annotation attributes of the current module.
@return Nil if the current module has no attributes, or a string-indexed dictionary.
@see Function.attributes
@see Class.attributes
@see Object.attributes
*/
FALCON_FUNC attributes ( ::Falcon::VMachine *vm )
{
// we want to know the attributes of the module calling us.
StackFrame* cf = vm->currentFrame();
const Module* mod = cf->m_module->module();
Map* attr = mod->attributes();
if( attr != 0 )
{
vm->retval( interal_make_attrib_dict( attr ) );
}
}
/*#
@method attributes Class
@brief Returns a dictionary containing annotation attributes of the given class.
@return Nil if the class has no attributes, or a string-indexed dictionary.
@see attributes
*/
FALCON_FUNC Class_attributes ( ::Falcon::VMachine *vm )
{
Map* attr = vm->self().asClass()->symbol()->getClassDef()->attributes();
if( attr != 0 )
{
vm->retval( interal_make_attrib_dict( attr ) );
}
}
/*#
@method attributes Object
@brief Returns a dictionary containing annotation attributes of the given object.
@return Nil if the object has no attributes, or a string-indexed dictionary.
If the object is a class instance, this method will return the attributes of
the generator class.
@see attributes
*/
FALCON_FUNC Object_attributes ( ::Falcon::VMachine *vm )
{
Map* attr = vm->self().asObject()->generator()->symbol()->getClassDef()->attributes();
if( attr != 0 )
{
vm->retval( interal_make_attrib_dict( attr ) );
}
}
/*#
@method attributes Function
@brief Returns a dictionary containing annotation attributes of the given function.
@return Nil if the function has no attributes, or a string-indexed dictionary.
@see attributes
*/
FALCON_FUNC Function_attributes ( ::Falcon::VMachine *vm )
{
const Symbol* sym = vm->self().asFunction()->symbol();
// currently, extfunc are not supported; let the VM return nil
if ( sym->isExtFunc() )
return;
Map* attr = sym->getFuncDef()->attributes();
if( attr != 0 )
{
vm->retval( interal_make_attrib_dict( attr ) );
}
}
/*#
@method attributes Method
@brief Returns the attributes associated with the method function.
@return Nil if the function has no attributes, or a string-indexed dictionary.
@see attributes
*/
/*#
@method attributes ClassMethod
@brief Returns the attributes associated with the method function.
@return Nil if the function has no attributes, or a string-indexed dictionary.
@see attributes
*/
FALCON_FUNC Method_attributes ( ::Falcon::VMachine *vm )
{
if ( ! vm->self().asMethodFunc()->isFunc() )
return;
const Symbol* sym = static_cast<CoreFunc*>(vm->self().asMethodFunc())->symbol();
// currently, extfunc are not supported; let the VM return nil
if ( sym->isExtFunc() )
return;
Map* attr = sym->getFuncDef()->attributes();
if( attr != 0 )
{
vm->retval( interal_make_attrib_dict( attr ) );
}
}
}
}
/* end of attrib_ext.cpp */
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