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/*
FALCON - The Falcon Programming Language.
FILE: symtab.cpp
Symbol table definition
-------------------------------------------------------------------
Author: Giancarlo Niccolai
Begin: mar ago 3 2004
-------------------------------------------------------------------
(C) Copyright 2004: the FALCON developers (see list in AUTHORS file)
See LICENSE file for licensing details.
*/
#include <falcon/symtab.h>
#include <falcon/symbol.h>
#include <falcon/stream.h>
#include <falcon/traits.h>
#include <falcon/module.h>
#include <falcon/traits.h>
namespace Falcon {
SymbolTable::SymbolTable():
m_map( &traits::t_stringptr(), &traits::t_voidp(), 19 )
{
}
void SymbolTable::exportUndefined()
{
MapIterator iter = m_map.begin();
while( iter.hasCurrent() )
{
Symbol *sym = *(Symbol **) iter.currentValue();
if( ! sym->isUndefined() )
sym->exported( true );
iter.next();
}
}
bool SymbolTable::add( Symbol *sym )
{
if( findByName( sym->name() ) != 0 )
return false;
m_map.insert( &sym->name(), sym );
return true;
}
bool SymbolTable::remove( const String &name )
{
return m_map.erase( &name );
}
bool SymbolTable::save( Stream *out ) const
{
uint32 value;
// save the symbol table size.
value = endianInt32( size() );
out->write( &value, sizeof(value) );
MapIterator iter = m_map.begin();
while( iter.hasCurrent() )
{
const Symbol *second = *(const Symbol **) iter.currentValue();
value = endianInt32( second->id() );
out->write( &value, sizeof(value) );
iter.next();
}
return true;
}
bool SymbolTable::load( const Module *mod, Stream *in )
{
// get the symtab type.
int32 value;
in->read( &value, sizeof(value) );
int32 final_size = endianInt32(value);
// preallocate all the symbols;
for ( int i = 0 ; i < final_size; i ++ )
{
Symbol *sym;
in->read( &value, sizeof(value) );
sym = mod->getSymbol( endianInt32(value) );
if ( sym == 0 ) {
return false;
}
if ( sym->name().getRawStorage() == 0 ) {
return false;
}
m_map.insert( &sym->name(), sym );
}
return true;
}
SymbolVector::SymbolVector():
GenericVector( &traits::t_voidp() )
{
}
SymbolVector::~SymbolVector()
{
// free the symbols.
for ( uint32 i = 0; i < size(); i ++ )
{
delete symbolAt( i );
}
}
bool SymbolVector::save( Stream *out ) const
{
uint32 value = endianInt32(size());
out->write( &value, sizeof(value) );
for( uint32 iter = 0; iter < size(); iter++ )
{
symbolAt( iter )->name().serialize( out );
}
for( uint32 iter = 0; iter < size(); iter++ )
{
if ( ! symbolAt( iter )->save( out ) )
return false;
}
return true;
}
bool SymbolVector::load( Module *owner, Stream *in )
{
uint32 value;
in->read( &value, sizeof(value) );
value = endianInt32( value );
resize( value );
for ( uint32 i = 0; i < value; i ++ )
{
Symbol *sym = new Symbol(owner);
sym->id( i );
set( sym, i );
if ( ! sym->name().deserialize( in ) )
return false;
}
for( uint32 iter = 0; iter < size(); iter++ )
{
if ( ! symbolAt( iter )->load( in ) )
return false;
}
return true;
}
}
/* end of symtab.cpp */
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