kicad/pcbnew/drc/drc_rule.cpp

134 lines
3.5 KiB
C++

/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2020 KiCad Developers, see change_log.txt for contributors.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <fctsys.h>
#include <class_board.h>
#include <class_board_item.h>
#include <drc/drc_rule.h>
#include <pcb_expr_evaluator.h>
const DRC_CONSTRAINT* GetConstraint( const BOARD_ITEM* aItem, const BOARD_ITEM* bItem,
int aConstraint, PCB_LAYER_ID aLayer, wxString* aRuleName )
{
BOARD* board = aItem->GetBoard();
if( !board )
return nullptr;
for( DRC_RULE* rule : board->GetDesignSettings().m_DRCRules )
{
if( !rule->m_LayerCondition.test( aLayer ) )
continue;
for( const DRC_CONSTRAINT& constraint : rule->m_Constraints )
{
if( constraint.m_Type != aConstraint )
continue;
if( !rule->m_LayerCondition.test( aLayer ) )
continue;
if( rule->m_Condition.EvaluateFor( aItem, bItem, aLayer ) )
{
if( aRuleName )
*aRuleName = rule->m_Name;
return &constraint;
}
if( bItem && rule->m_Condition.EvaluateFor( bItem, aItem, aLayer ) )
{
if( aRuleName )
*aRuleName = rule->m_Name;
return &constraint;
}
}
}
return nullptr;
}
DRC_RULE::DRC_RULE() :
m_LayerCondition( LSET::AllLayersMask() )
{
}
DRC_RULE::~DRC_RULE()
{
}
DRC_RULE_CONDITION::DRC_RULE_CONDITION()
{
m_ucode = nullptr;
}
DRC_RULE_CONDITION::~DRC_RULE_CONDITION()
{
delete m_ucode;
}
bool DRC_RULE_CONDITION::EvaluateFor( const BOARD_ITEM* aItemA, const BOARD_ITEM* aItemB,
PCB_LAYER_ID aLayer )
{
// An unconditional rule is always true
if( m_Expression.IsEmpty() )
return true;
// A rule which failed to compile is always false
if( !m_ucode )
return false;
BOARD_ITEM* a = const_cast<BOARD_ITEM*>( aItemA );
BOARD_ITEM* b = aItemB ? const_cast<BOARD_ITEM*>( aItemB ) : DELETED_BOARD_ITEM::GetInstance();
PCB_EXPR_CONTEXT ctx( aLayer );
ctx.SetItems( a, b );
return m_ucode->Run( &ctx )->AsDouble() != 0.0;
}
bool DRC_RULE_CONDITION::Compile( REPORTER* aReporter, int aSourceLine, int aSourceOffset )
{
PCB_EXPR_COMPILER compiler( aReporter, aSourceLine, aSourceOffset );
if (!m_ucode)
m_ucode = new PCB_EXPR_UCODE;
PCB_EXPR_CONTEXT preflightContext( F_Cu );
bool ok = compiler.Compile( m_Expression.ToUTF8().data(), m_ucode, &preflightContext );
return ok;
}