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kicad/eeschema/erc.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
* Copyright (C) 2011-2016 Wayne Stambaugh <stambaughw@verizon.net>
* Copyright (C) 1992-2016 KiCad Developers, see AUTHORS.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
*/
/**
* @file erc.cpp
* @brief Electrical Rules Check implementation.
*/
#include <fctsys.h>
#include <sch_draw_panel.h>
#include <kicad_string.h>
#include <sch_edit_frame.h>
#include <netlist.h>
#include <netlist_object.h>
#include <lib_pin.h>
#include <erc.h>
#include <sch_marker.h>
#include <sch_sheet.h>
#include <sch_reference_list.h>
#include <wx/ffile.h>
/* ERC tests :
* 1 - conflicts between connected pins ( example: 2 connected outputs )
* 2 - minimal connections requirements ( 1 input *must* be connected to an
* output, or a passive pin )
*/
/*
* Electrical type of pins:
* PIN_INPUT = usual pin input: must be connected
* PIN_OUTPUT = usual output
* PIN_BIDI = input or output (like port for a microprocessor)
* PIN_TRISTATE = tris state bus pin
* PIN_PASSIVE = pin for passive components: must be connected, and can be
* connected to any pin
* PIN_UNSPECIFIED = unknown electrical properties: creates always a warning
* when connected
* PIN_POWER_IN = power input (GND, VCC for ICs). Must be connected to a power
* output.
* PIN_POWER_OUT = output of a regulator: intended to be connected to power
* input pins
* PIN_OPENCOLLECTOR = pin type open collector
* PIN_OPENEMITTER = pin type open emitter
* PIN_NC = not connected (must be left open)
*
* Minimal requirements:
* All pins *must* be connected (except PIN_NC).
* When a pin is not connected in schematic, the user must place a "non
* connected" symbol to this pin.
* This ensures a forgotten connection will be detected.
*/
/* Messages for conflicts :
* PIN_INPUT, PIN_OUTPUT, PIN_BIDI, PIN_TRISTATE, PIN_PASSIVE,
* PIN_UNSPECIFIED, PIN_POWER_IN, PIN_POWER_OUT, PIN_OPENCOLLECTOR,
* PIN_OPENEMITTER, PIN_NC
* These messages are used to show the ERC matrix in ERC dialog
*/
// Messages for matrix rows:
const wxString CommentERC_H[] =
{
_( "Input Pin" ),
_( "Output Pin" ),
_( "Bidirectional Pin" ),
_( "Tri-State Pin" ),
_( "Passive Pin" ),
_( "Unspecified Pin" ),
_( "Power Input Pin" ),
_( "Power Output Pin" ),
_( "Open Collector" ),
_( "Open Emitter" ),
_( "No Connection" )
};
// Messages for matrix columns
const wxString CommentERC_V[] =
{
_( "Input Pin" ),
_( "Output Pin" ),
_( "Bidirectional Pin" ),
_( "Tri-State Pin" ),
_( "Passive Pin" ),
_( "Unspecified Pin" ),
_( "Power Input Pin" ),
_( "Power Output Pin" ),
_( "Open Collector" ),
_( "Open Emitter" ),
_( "No Connection" )
};
/* Look up table which gives the diag for a pair of connected pins
* Can be modified by ERC options.
* at start up: must be loaded by DefaultDiagErc
* Can be modified in dialog ERC
*/
int DiagErc[PINTYPE_COUNT][PINTYPE_COUNT];
/**
* Default Look up table which gives the ERC error level for a pair of connected pins
* Same as DiagErc, but cannot be modified.
* Used to init or reset DiagErc
* note also, to avoid inconsistancy:
* DefaultDiagErc[i][j] = DefaultDiagErc[j][i]
*/
int DefaultDiagErc[PINTYPE_COUNT][PINTYPE_COUNT] =
{
/* I, O, Bi, 3S, Pas, UnS, PwrI, PwrO, OC, OE, NC */
/* I */ { OK, OK, OK, OK, OK, WAR, OK, OK, OK, OK, ERR },
/* O */ { OK, ERR, OK, WAR, OK, WAR, OK, ERR, ERR, ERR, ERR },
/* Bi*/ { OK, OK, OK, OK, OK, WAR, OK, WAR, OK, WAR, ERR },
/* 3S*/ { OK, WAR, OK, OK, OK, WAR, WAR, ERR, WAR, WAR, ERR },
/*Pas*/ { OK, OK, OK, OK, OK, WAR, OK, OK, OK, OK, ERR },
/*UnS */ { WAR, WAR, WAR, WAR, WAR, WAR, WAR, WAR, WAR, WAR, ERR },
/*PwrI*/ { OK, OK, OK, WAR, OK, WAR, OK, OK, OK, OK, ERR },
/*PwrO*/ { OK, ERR, WAR, ERR, OK, WAR, OK, ERR, ERR, ERR, ERR },
/* OC */ { OK, ERR, OK, WAR, OK, WAR, OK, ERR, OK, OK, ERR },
/* OE */ { OK, ERR, WAR, WAR, OK, WAR, OK, ERR, OK, OK, ERR },
/* NC */ { ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR, ERR }
};
/**
* Look up table which gives the minimal drive for a pair of connected pins on
* a net.
* <p>
* The initial state of a net is NOC (Net with No Connection). It can be updated to
* NPI (Pin Isolated), NET_NC (Net with a no connect symbol), NOD (Not Driven) or DRV
* (DRIven). It can be updated to NET_NC with no error only if there is only one pin
* in net. Nets are OK when their final state is NET_NC or DRV. Nets with the state
* NOD have no valid source signal.
*/
static int MinimalReq[PINTYPE_COUNT][PINTYPE_COUNT] =
{
/* In Out, Bi, 3S, Pas, UnS, PwrI,PwrO,OC, OE, NC */
/* In*/ { NOD, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*Out*/ { DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, NPI },
/* Bi*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/* 3S*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*Pas*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*UnS*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/*PwrI*/ { NOD, DRV, NOD, NOD, NOD, NOD, NOD, DRV, NOD, NOD, NPI },
/*PwrO*/ { DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, DRV, NPI },
/* OC*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/* OE*/ { DRV, DRV, DRV, DRV, DRV, DRV, NOD, DRV, DRV, DRV, NPI },
/* NC*/ { NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI, NPI }
};
int TestDuplicateSheetNames( bool aCreateMarker )
{
SCH_SCREEN* screen;
SCH_ITEM* item;
SCH_ITEM* test_item;
int err_count = 0;
SCH_SCREENS screenList; // Created the list of screen
for( screen = screenList.GetFirst(); screen != NULL; screen = screenList.GetNext() )
{
for( item = screen->GetDrawItems(); item != NULL; item = item->Next() )
{
// search for a sheet;
if( item->Type() != SCH_SHEET_T )
continue;
for( test_item = item->Next(); test_item != NULL; test_item = test_item->Next() )
{
if( test_item->Type() != SCH_SHEET_T )
continue;
// We have found a second sheet: compare names
// we are using case insensitive comparison to avoid mistakes between
// similar names like Mysheet and mysheet
if( ( (SCH_SHEET*) item )->GetName().CmpNoCase(
( ( SCH_SHEET* ) test_item )->GetName() ) == 0 )
{
if( aCreateMarker )
{
/* Create a new marker type ERC error*/
SCH_MARKER* marker = new SCH_MARKER();
marker->SetTimeStamp( GetNewTimeStamp() );
marker->SetData( ERCE_DUPLICATE_SHEET_NAME,
( (SCH_SHEET*) test_item )->GetPosition(),
_( "Duplicate sheet name" ),
( (SCH_SHEET*) test_item )->GetPosition() );
marker->SetMarkerType( MARKER_BASE::MARKER_ERC );
marker->SetErrorLevel( MARKER_BASE::MARKER_SEVERITY_ERROR );
screen->Append( marker );
}
err_count++;
}
}
}
}
return err_count;
}
int TestConflictingBusAliases( bool aCreateMarker )
{
using std::pair;
using std::shared_ptr;
using std::vector;
int err_count = 0;
SCH_SCREENS screens;
vector< shared_ptr<BUS_ALIAS> > aliases;
vector< pair< shared_ptr<BUS_ALIAS>, shared_ptr<BUS_ALIAS> > > conflicts;
for( auto screen = screens.GetFirst(); screen != NULL; screen = screens.GetNext() )
{
auto screen_aliases = screen->GetBusAliases();
for( auto alias : screen_aliases )
{
for( auto test : aliases )
{
if( alias->GetName() == test->GetName() &&
alias->Members() != test->Members() )
{
conflicts.push_back( std::make_pair( alias, test ) );
}
}
}
aliases.insert( aliases.end(),
screen_aliases.begin(), screen_aliases.end() );
}
if( !conflicts.empty() )
{
if( aCreateMarker )
{
wxString msg;
for( auto conflict : conflicts )
{
auto marker = new SCH_MARKER();
auto a1 = conflict.first;
auto a2 = conflict.second;
msg.Printf( _( "Bus alias %s has conflicting definitions on multiple sheets: " ),
GetChars( a1->GetName() ) );
wxFileName f1 = a1->GetParent()->GetFileName();
wxFileName f2 = a2->GetParent()->GetFileName();
msg << f1.GetFullName() << " and " << f2.GetFullName();
marker->SetData( ERCE_BUS_ALIAS_CONFLICT, wxPoint( 0, 0 ),
msg, wxPoint( 0, 0 ) );
marker->SetMarkerType( MARKER_BASE::MARKER_ERC );
marker->SetErrorLevel( MARKER_BASE::MARKER_SEVERITY_ERROR );
a2->GetParent()->Append( marker );
++err_count;
}
}
}
return err_count;
}
int TestMultiunitFootprints( SCH_SHEET_LIST& aSheetList )
{
int errors = 0;
std::map<wxString, LIB_ID> footprints;
SCH_MULTI_UNIT_REFERENCE_MAP refMap;
aSheetList.GetMultiUnitComponents( refMap, true );
for( auto& component : refMap )
{
auto& refList = component.second;
if( refList.GetCount() == 0 )
{
wxFAIL; // it should not happen
continue;
}
// Reference footprint
wxString fp;
wxString unitName;
for( unsigned i = 0; i < component.second.GetCount(); ++i )
{
SCH_COMPONENT* cmp = refList.GetItem( i ).GetComp();
SCH_SHEET_PATH sheetPath = refList.GetItem( i ).GetSheetPath();
fp = cmp->GetField( FOOTPRINT )->GetText();
if( !fp.IsEmpty() )
{
unitName = cmp->GetRef( &sheetPath )
+ LIB_PART::SubReference( cmp->GetUnit(), false );
break;
}
}
for( unsigned i = 0; i < component.second.GetCount(); ++i )
{
SCH_REFERENCE& ref = refList.GetItem( i );
SCH_COMPONENT* unit = ref.GetComp();
SCH_SHEET_PATH sheetPath = refList.GetItem( i ).GetSheetPath();
const wxString curFp = unit->GetField( FOOTPRINT )->GetText();
if( !curFp.IsEmpty() && fp != curFp )
{
wxString curUnitName = unit->GetRef( &sheetPath )
+ LIB_PART::SubReference( unit->GetUnit(), false );
wxString msg = wxString::Format( _( "Unit %s has '%s' assigned, "
"whereas unit %s has '%s' assigned" ),
unitName,
fp,
curUnitName,
curFp );
wxPoint pos = unit->GetPosition();
SCH_MARKER* marker = new SCH_MARKER();
marker->SetTimeStamp( GetNewTimeStamp() );
marker->SetData( ERCE_DIFFERENT_UNIT_FP, pos, msg, pos );
marker->SetMarkerType( MARKER_BASE::MARKER_ERC );
marker->SetErrorLevel( MARKER_BASE::MARKER_SEVERITY_WARNING );
ref.GetSheetPath().LastScreen()->Append( marker );
++errors;
}
}
}
return errors;
}
void Diagnose( NETLIST_OBJECT* aNetItemRef, NETLIST_OBJECT* aNetItemTst,
int aMinConn, int aDiag )
{
SCH_MARKER* marker = NULL;
SCH_SCREEN* screen;
ELECTRICAL_PINTYPE ii, jj;
if( aDiag == OK )
return;
/* Create new marker for ERC error. */
marker = new SCH_MARKER();
marker->SetTimeStamp( GetNewTimeStamp() );
marker->SetMarkerType( MARKER_BASE::MARKER_ERC );
marker->SetErrorLevel( MARKER_BASE::MARKER_SEVERITY_WARNING );
screen = aNetItemRef->m_SheetPath.LastScreen();
screen->Append( marker );
wxString msg;
if( aMinConn < 0 )
{
#if 0
if( aNetItemRef->m_Type == NET_HIERLABEL || aNetItemRef->m_Type == NET_HIERBUSLABELMEMBER )
{
msg.Printf( _( "Hierarchical label %s is not connected to a sheet label." ),
GetChars( aNetItemRef->m_Label ) );
marker->SetData( ERCE_HIERACHICAL_LABEL,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
}
else if( aNetItemRef->m_Type == NET_GLOBLABEL )
{
msg.Printf( _( "Global label %s is not connected to any other global label." ),
GetChars( aNetItemRef->m_Label ) );
marker->SetData( ERCE_GLOBLABEL,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
}
else
{
msg.Printf( _( "Sheet label %s is not connected to a hierarchical label." ),
GetChars( aNetItemRef->m_Label ) );
marker->SetData( ERCE_HIERACHICAL_LABEL,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
}
#endif
return;
}
ii = aNetItemRef->m_ElectricalPinType;
wxString cmp_ref( "?" );
if( aNetItemRef->m_Type == NET_PIN && aNetItemRef->m_Link )
cmp_ref = aNetItemRef->GetComponentParent()->GetRef( &aNetItemRef->m_SheetPath );
if( aNetItemTst == NULL )
{
if( aMinConn == NOC ) /* Only 1 element in the net. */
{
msg.Printf( _( "Pin %s (%s) of component %s is unconnected." ),
aNetItemRef->m_PinNum,
GetChars( GetText( ii ) ),
GetChars( cmp_ref ) );
marker->SetData( ERCE_PIN_NOT_CONNECTED,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
return;
}
if( aMinConn == NOD ) /* Nothing driving the net. */
{
if( aNetItemRef->m_Type == NET_PIN && aNetItemRef->m_Link )
cmp_ref = aNetItemRef->GetComponentParent()->GetRef(
&aNetItemRef->m_SheetPath );
msg.Printf( _( "Pin %s (%s) of component %s is not driven (Net %d)." ),
aNetItemRef->m_PinNum,
GetChars( GetText( ii ) ),
GetChars( cmp_ref ),
aNetItemRef->GetNet() );
marker->SetData( ERCE_PIN_NOT_DRIVEN,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
return;
}
if( aDiag == UNC )
{
msg.Printf( _( "More than 1 pin connected to an UnConnect symbol." ) );
marker->SetData( ERCE_NOCONNECT_CONNECTED,
aNetItemRef->m_Start,
msg,
aNetItemRef->m_Start );
return;
}
}
if( aNetItemTst ) /* Error between 2 pins */
{
jj = aNetItemTst->m_ElectricalPinType;
int errortype = ERCE_PIN_TO_PIN_WARNING;
if( aDiag == ERR )
{
marker->SetErrorLevel( MARKER_BASE::MARKER_SEVERITY_ERROR );
errortype = ERCE_PIN_TO_PIN_ERROR;
}
wxString alt_cmp( "?" );
if( aNetItemTst->m_Type == NET_PIN && aNetItemTst->m_Link )
alt_cmp = aNetItemTst->GetComponentParent()->GetRef( &aNetItemTst->m_SheetPath );
msg.Printf( _( "Pin %s (%s) of component %s is connected to " ),
aNetItemRef->m_PinNum,
GetChars( GetText( ii ) ),
GetChars( cmp_ref ) );
marker->SetData( errortype, aNetItemRef->m_Start, msg, aNetItemRef->m_Start );
msg.Printf( _( "pin %s (%s) of component %s (net %d)." ),
aNetItemTst->m_PinNum,
GetChars( GetText( jj ) ),
GetChars( alt_cmp ),
aNetItemRef->GetNet() );
marker->SetAuxiliaryData( msg, aNetItemTst->m_Start );
}
}
void TestOthersItems( NETLIST_OBJECT_LIST* aList,
unsigned aNetItemRef, unsigned aNetStart,
int* aMinConnexion )
{
unsigned netItemTst = aNetStart;
ELECTRICAL_PINTYPE jj;
int erc = OK;
/* Analysis of the table of connections. */
ELECTRICAL_PINTYPE ref_elect_type = aList->GetItem( aNetItemRef )->m_ElectricalPinType;
int local_minconn = NOC;
if( ref_elect_type == PIN_NC )
local_minconn = NPI;
/* Test pins connected to NetItemRef */
for( ; ; netItemTst++ )
{
if( aNetItemRef == netItemTst )
continue;
// We examine only a given net. We stop the search if the net changes
if( ( netItemTst >= aList->size() ) // End of list
|| ( aList->GetItemNet( aNetItemRef ) !=
aList->GetItemNet( netItemTst ) ) ) // End of net
{
/* End net code found: minimum connection test. */
if( ( *aMinConnexion < NET_NC ) && ( local_minconn < NET_NC ) )
{
/* Not connected or not driven pin. */
bool seterr = true;
if( local_minconn == NOC &&
aList->GetItemType( aNetItemRef ) == NET_PIN )
{
/* This pin is not connected: for multiple part per
* package, and duplicated pin,
* search for another instance of this pin
* this will be flagged only if all instances of this pin
* are not connected
* TODO test also if instances connected are connected to
* the same net
*/
for( unsigned duplicate = 0; duplicate < aList->size(); duplicate++ )
{
if( aList->GetItemType( duplicate ) != NET_PIN )
continue;
if( duplicate == aNetItemRef )
continue;
if( aList->GetItem( aNetItemRef )->m_PinNum !=
aList->GetItem( duplicate )->m_PinNum )
continue;
if( ( (SCH_COMPONENT*) aList->GetItem( aNetItemRef )->
m_Link )->GetRef( &aList->GetItem( aNetItemRef )-> m_SheetPath ) !=
( (SCH_COMPONENT*) aList->GetItem( duplicate )->m_Link )
->GetRef( &aList->GetItem( duplicate )->m_SheetPath ) )
continue;
// Same component and same pin. Do dot create error for this pin
// if the other pin is connected (i.e. if duplicate net has another
// item)
if( (duplicate > 0)
&& ( aList->GetItemNet( duplicate ) ==
aList->GetItemNet( duplicate - 1 ) ) )
seterr = false;
if( (duplicate < aList->size() - 1)
&& ( aList->GetItemNet( duplicate ) ==
aList->GetItemNet( duplicate + 1 ) ) )
seterr = false;
}
}
if( seterr )
Diagnose( aList->GetItem( aNetItemRef ), NULL, local_minconn, WAR );
*aMinConnexion = DRV; // inhibiting other messages of this
// type for the net.
}
return;
}
switch( aList->GetItemType( netItemTst ) )
{
case NET_ITEM_UNSPECIFIED:
case NET_SEGMENT:
case NET_BUS:
case NET_JUNCTION:
case NET_LABEL:
case NET_HIERLABEL:
case NET_BUSLABELMEMBER:
case NET_HIERBUSLABELMEMBER:
case NET_SHEETBUSLABELMEMBER:
case NET_SHEETLABEL:
case NET_GLOBLABEL:
case NET_GLOBBUSLABELMEMBER:
case NET_PINLABEL:
break;
case NET_NOCONNECT:
local_minconn = std::max( NET_NC, local_minconn );
break;
case NET_PIN:
jj = aList->GetItem( netItemTst )->m_ElectricalPinType;
local_minconn = std::max( MinimalReq[ref_elect_type][jj], local_minconn );
if( netItemTst <= aNetItemRef )
break;
if( erc == OK )
{
erc = DiagErc[ref_elect_type][jj];
if( erc != OK )
{
if( aList->GetConnectionType( netItemTst ) == UNCONNECTED )
{
Diagnose( aList->GetItem( aNetItemRef ),
aList->GetItem( netItemTst ),
0, erc );
aList->SetConnectionType( netItemTst, NOCONNECT_SYMBOL_PRESENT );
}
}
}
break;
}
}
}
int NETLIST_OBJECT_LIST::CountPinsInNet( unsigned aNetStart )
{
int count = 0;
int curr_net = GetItemNet( aNetStart );
/* Test pins connected to NetItemRef */
for( unsigned item = aNetStart; item < size(); item++ )
{
// We examine only a given net. We stop the search if the net changes
if( curr_net != GetItemNet( item ) ) // End of net
break;
if( GetItemType( item ) == NET_PIN )
count++;
}
return count;
}
bool WriteDiagnosticERC( EDA_UNITS_T aUnits, const wxString& aFullFileName )
{
wxString msg;
wxFFile file( aFullFileName, wxT( "wt" ) );
if( !file.IsOpened() )
return false;
msg = _( "ERC report" );
msg << wxT(" (") << DateAndTime() << wxT( ", " )
<< _( "Encoding UTF8" ) << wxT( " )\n" );
int err_count = 0;
int warn_count = 0;
int total_count = 0;
SCH_SHEET_LIST sheetList( g_RootSheet );
for( unsigned i = 0; i < sheetList.size(); i++ )
{
msg << wxString::Format( _( "\n***** Sheet %s\n" ),
GetChars( sheetList[i].PathHumanReadable() ) );
for( SCH_ITEM* item = sheetList[i].LastDrawList(); item != NULL; item = item->Next() )
{
if( item->Type() != SCH_MARKER_T )
continue;
SCH_MARKER* marker = (SCH_MARKER*) item;
if( marker->GetMarkerType() != MARKER_BASE::MARKER_ERC )
continue;
total_count++;
if( marker->GetErrorLevel() == MARKER_BASE::MARKER_SEVERITY_ERROR )
err_count++;
if( marker->GetErrorLevel() == MARKER_BASE::MARKER_SEVERITY_WARNING )
warn_count++;
msg << marker->GetReporter().ShowReport( aUnits );
}
}
msg << wxString::Format( _( "\n ** ERC messages: %d Errors %d Warnings %d\n" ),
total_count, err_count, warn_count );
// Currently: write report using UTF8 (as usual in Kicad).
// TODO: see if we can use the current encoding page (mainly for Windows users),
// Or other format (HTML?)
file.Write( msg );
// wxFFile dtor will close the file.
return true;
}
void NETLIST_OBJECT_LIST::TestforNonOrphanLabel( unsigned aNetItemRef, unsigned aStartNet )
{
unsigned netItemTst = aStartNet;
int erc = 1;
// Review the list of labels connected to NetItemRef:
for( ; ; netItemTst++ )
{
if( netItemTst == aNetItemRef )
continue;
/* Is always in the same net? */
if( ( netItemTst == size() )
|| ( GetItemNet( aNetItemRef ) != GetItemNet( netItemTst ) ) )
{
/* End Netcode found. */
if( erc )
{
/* Glabel or SheetLabel orphaned. */
Diagnose( GetItem( aNetItemRef ), NULL, -1, WAR );
}
return;
}
if( GetItem( aNetItemRef )->IsLabelConnected( GetItem( netItemTst ) ) )
erc = 0;
//same thing, different order.
if( GetItem( netItemTst )->IsLabelConnected( GetItem( aNetItemRef ) ) )
erc = 0;
}
}
// this code try to detect similar labels, i.e. labels which are identical
// when they are compared using case insensitive coparisons.
// A helper struct to compare NETLIST_OBJECT items by sheetpath and label texts
// for a std::set<NETLIST_OBJECT*> container
// the full text is "sheetpath+label" for local labels and "label" for global labels
struct compare_labels
{
bool operator() ( const NETLIST_OBJECT* lab1, const NETLIST_OBJECT* lab2 )
{
wxString str1 = lab1->m_SheetPath.Path() + lab1->m_Label;
wxString str2 = lab2->m_SheetPath.Path() + lab2->m_Label;
return str1.Cmp( str2 ) < 0;
}
};
struct compare_label_names
{
bool operator() ( const NETLIST_OBJECT* lab1, const NETLIST_OBJECT* lab2 )
{
return lab1->m_Label.Cmp( lab2->m_Label ) < 0;
}
};
struct compare_paths
{
bool operator() ( const NETLIST_OBJECT* lab1, const NETLIST_OBJECT* lab2 )
{
return lab1->m_SheetPath.Path().Cmp( lab2->m_SheetPath.Path() ) < 0;
}
};
// Helper functions to build the warning messages about Similar Labels:
static int countIndenticalLabels( std::vector<NETLIST_OBJECT*>& aList, NETLIST_OBJECT* aLabel );
static void SimilarLabelsDiagnose( NETLIST_OBJECT* aItemA, NETLIST_OBJECT* aItemB );
void NETLIST_OBJECT_LIST::TestforSimilarLabels()
{
// Similar labels which are different when using case sensitive comparisons
// but are equal when using case insensitive comparisons
// list of all labels (used the better item to build diag messages)
std::vector<NETLIST_OBJECT*> fullLabelList;
// list of all labels , each label appears only once (used to to detect similar labels)
std::set<NETLIST_OBJECT*, compare_labels> uniqueLabelList;
wxString msg;
// Build a list of differents labels. If inside a given sheet there are
// more than one given label, only one label is stored.
// not also the sheet labels are not taken in account for 2 reasons:
// * they are in the root sheet but they are seen only from the child sheet
// * any mismatch between child sheet hierarchical labels and the sheet label
// already detected by ERC
for( unsigned netItem = 0; netItem < size(); ++netItem )
{
switch( GetItemType( netItem ) )
{
case NET_LABEL:
case NET_BUSLABELMEMBER:
case NET_PINLABEL:
case NET_GLOBBUSLABELMEMBER:
case NET_HIERLABEL:
case NET_HIERBUSLABELMEMBER:
case NET_GLOBLABEL:
// add this label in lists
uniqueLabelList.insert( GetItem( netItem ) );
fullLabelList.push_back( GetItem( netItem ) );
break;
case NET_SHEETLABEL:
case NET_SHEETBUSLABELMEMBER:
default:
break;
}
}
// build global labels and compare
std::set<NETLIST_OBJECT*, compare_label_names> loc_labelList;
std::set<NETLIST_OBJECT*>::const_iterator it;
for( it = uniqueLabelList.begin(); it != uniqueLabelList.end(); ++it )
{
if( (*it)->IsLabelGlobal() )
loc_labelList.insert( *it );
}
// compare global labels (same label names appears only once in list)
for( it = loc_labelList.begin(); it != loc_labelList.end(); ++it )
{
std::set<NETLIST_OBJECT*>::const_iterator it_aux = it;
for( ++it_aux; it_aux != loc_labelList.end(); ++it_aux )
{
if( (*it)->m_Label.CmpNoCase( (*it_aux)->m_Label ) == 0 )
{
// Create new marker for ERC.
int cntA = countIndenticalLabels( fullLabelList, *it );
int cntB = countIndenticalLabels( fullLabelList, *it_aux );
if( cntA <= cntB )
SimilarLabelsDiagnose( (*it), (*it_aux) );
else
SimilarLabelsDiagnose( (*it_aux), (*it) );
}
}
}
// Build paths list
std::set<NETLIST_OBJECT*, compare_paths> pathsList;
for( it = uniqueLabelList.begin(); it != uniqueLabelList.end(); ++it )
pathsList.insert( *it );
// Examine each label inside a sheet path:
for( it = pathsList.begin(); it != pathsList.end(); ++it )
{
loc_labelList.clear();
std::set<NETLIST_OBJECT*>::const_iterator it_aux = uniqueLabelList.begin();
for( ; it_aux != uniqueLabelList.end(); ++it_aux )
{
if( (*it)->m_SheetPath.Path() == (*it_aux)->m_SheetPath.Path() )
loc_labelList.insert( *it_aux );
}
// at this point, loc_labelList contains labels of the current sheet path.
// Detect similar labels (same label names appears only once in list)
std::set<NETLIST_OBJECT*>::const_iterator ref_it;
for( ref_it = loc_labelList.begin(); ref_it != loc_labelList.end(); ++ref_it )
{
NETLIST_OBJECT* ref_item = *ref_it;
it_aux = ref_it;
for( ++it_aux; it_aux != loc_labelList.end(); ++it_aux )
{
// global label versus global label was already examined.
// here, at least one label must be local
if( ref_item->IsLabelGlobal() && (*it_aux)->IsLabelGlobal() )
continue;
if( ref_item->m_Label.CmpNoCase( (*it_aux)->m_Label ) == 0 )
{
// Create new marker for ERC.
int cntA = countIndenticalLabels( fullLabelList, ref_item );
int cntB = countIndenticalLabels( fullLabelList, *it_aux );
if( cntA <= cntB )
SimilarLabelsDiagnose( ref_item, (*it_aux) );
else
SimilarLabelsDiagnose( (*it_aux), ref_item );
}
}
}
}
}
// Helper function: count the number of labels identical to aLabel
// for global label: global labels in the full project
// for local label: all labels in the current sheet
static int countIndenticalLabels( std::vector<NETLIST_OBJECT*>& aList, NETLIST_OBJECT* aLabel )
{
int count = 0;
if( aLabel->IsLabelGlobal() )
{
for( unsigned netItem = 0; netItem < aList.size(); ++netItem )
{
NETLIST_OBJECT* item = aList[netItem];
if( item->IsLabelGlobal() && item->m_Label == aLabel->m_Label )
count++;
}
}
else
{
for( unsigned netItem = 0; netItem < aList.size(); ++netItem )
{
NETLIST_OBJECT* item = aList[netItem];
if( item->m_Label == aLabel->m_Label &&
item->m_SheetPath.Path() == aLabel->m_SheetPath.Path() )
count++;
}
}
return count;
}
// Helper function: creates a marker for similar labels ERC warning
static void SimilarLabelsDiagnose( NETLIST_OBJECT* aItemA, NETLIST_OBJECT* aItemB )
{
// Create new marker for ERC.
SCH_MARKER* marker = new SCH_MARKER();
marker->SetTimeStamp( GetNewTimeStamp() );
marker->SetMarkerType( MARKER_BASE::MARKER_ERC );
marker->SetErrorLevel( MARKER_BASE::MARKER_SEVERITY_WARNING );
SCH_SCREEN* screen = aItemA->m_SheetPath.LastScreen();
screen->Append( marker );
wxString fmt = aItemA->IsLabelGlobal() ?
_( "Global label \"%s\" (sheet \"%s\") looks like:" ) :
_( "Local label \"%s\" (sheet \"%s\") looks like:" );
wxString msg;
msg.Printf( fmt, GetChars( aItemA->m_Label ), GetChars( aItemA->m_SheetPath.PathHumanReadable() ) );
marker->SetData( aItemA->IsLabelGlobal() && aItemB->IsLabelGlobal() ?
ERCE_SIMILAR_GLBL_LABELS : ERCE_SIMILAR_LABELS,
aItemA->m_Start, msg, aItemA->m_Start );
fmt = aItemB->IsLabelGlobal() ? _( "Global label \"%s\" (sheet \"%s\")" ) :
_( "Local label \"%s\" (sheet \"%s\")" );
msg.Printf( fmt, GetChars( aItemB->m_Label ), GetChars( aItemB->m_SheetPath.PathHumanReadable() ) );
marker->SetAuxiliaryData( msg, aItemB->m_Start );
}
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