kicad/pcbnew/drc/drc_rule_condition.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2020-2022 KiCad Developers, see change_log.txt for contributors.
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*
* 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
*/
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#include <board_item.h>
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#include <reporter.h>
#include <drc/drc_rule_condition.h>
#include <pcb_expr_evaluator.h>
DRC_RULE_CONDITION::DRC_RULE_CONDITION( const wxString& aExpression ) :
m_expression( aExpression ),
m_ucode ( nullptr )
{
}
DRC_RULE_CONDITION::~DRC_RULE_CONDITION()
{
}
bool DRC_RULE_CONDITION::EvaluateFor( const BOARD_ITEM* aItemA, const BOARD_ITEM* aItemB,
int aConstraint, PCB_LAYER_ID aLayer, REPORTER* aReporter )
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{
if( GetExpression().IsEmpty() )
return true;
if( !m_ucode )
{
if( aReporter )
aReporter->Report( _( "ERROR in expression." ) );
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return false;
}
PCB_EXPR_CONTEXT ctx( aConstraint, aLayer );
if( aReporter )
{
ctx.SetErrorCallback(
[&]( const wxString& aMessage, int aOffset )
{
aReporter->Report( _( "ERROR:" ) + wxS( " " ) + aMessage );
} );
}
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BOARD_ITEM* a = const_cast<BOARD_ITEM*>( aItemA );
BOARD_ITEM* b = const_cast<BOARD_ITEM*>( aItemB );
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ctx.SetItems( a, b );
if( m_ucode->Run( &ctx )->AsDouble() != 0.0 )
{
return true;
}
else if( aItemB ) // Conditions are commutative
{
ctx.SetItems( b, a );
if( m_ucode->Run( &ctx )->AsDouble() != 0.0 )
return true;
}
return false;
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}
bool DRC_RULE_CONDITION::Compile( REPORTER* aReporter, int aSourceLine, int aSourceOffset )
{
PCB_EXPR_COMPILER compiler;
if( aReporter )
{
compiler.SetErrorCallback(
[&]( const wxString& aMessage, int aOffset )
{
wxString rest;
wxString first = aMessage.BeforeFirst( '|', &rest );
wxString msg = wxString::Format( _( "ERROR: <a href='%d:%d'>%s</a>%s" ),
aSourceLine,
aSourceOffset + aOffset,
first,
rest );
aReporter->Report( msg, RPT_SEVERITY_ERROR );
} );
}
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m_ucode = std::make_unique<PCB_EXPR_UCODE>();
PCB_EXPR_CONTEXT preflightContext( 0, F_Cu );
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bool ok = compiler.Compile( GetExpression().ToUTF8().data(), m_ucode.get(), &preflightContext );
return ok;
}