kicad/pcbnew/pcb_expr_evaluator.cpp

247 lines
6.9 KiB
C++

#include <cstdio>
#include "class_board.h"
#include "pcb_expr_evaluator.h"
class PCB_EXPR_BUILTIN_FUNCTIONS
{
public:
using FPTR = LIBEVAL::UCODE::FUNC_PTR;
PCB_EXPR_BUILTIN_FUNCTIONS();
static PCB_EXPR_BUILTIN_FUNCTIONS& Instance()
{
static PCB_EXPR_BUILTIN_FUNCTIONS self;
return self;
}
std::string tolower( const std::string str ) const
{
std::string rv;
std::transform(str.begin(),
str.end(),
rv.begin(),
::tolower);
return rv;
}
FPTR Get( const std::string &name ) const
{
auto it = m_funcs.find( name );
if( it == m_funcs.end() )
return nullptr;
//printf("Cfc2\n");
//it->second(nullptr, nullptr, nullptr);
return it->second;
}
private:
std::map<std::string, FPTR> m_funcs;
static void onLayer( LIBEVAL::UCODE* aUcode, LIBEVAL::UCODE::CONTEXT* aCtx, void *self )
{
auto arg = aCtx->Pop();
auto vref = static_cast<PCB_EXPR_VAR_REF*>( self );
auto conv = ENUM_MAP<PCB_LAYER_ID>::Instance();
bool value = vref->GetObject(aUcode)->IsOnLayer( conv.ToEnum( arg->AsString() ) );
auto rv = aCtx->AllocValue();
rv->Set( value ? 1.0 : 0.0 );
aCtx->Push( rv );
}
static void isPlated( LIBEVAL::UCODE* aUcode, LIBEVAL::UCODE::CONTEXT* aCtx, void *self )
{
auto vref = static_cast<PCB_EXPR_VAR_REF*>( self );
auto item = vref->GetObject(aUcode);
bool result = false;
if( item->Type() == PCB_PAD_T )
{
auto pad = static_cast<D_PAD*>( item );
result = pad->GetAttribute() == PAD_ATTRIB_STANDARD;
}
auto rv = aCtx->AllocValue();
rv->Set( result ? 1.0 : 0.0 );
aCtx->Push( rv );
}
};
PCB_EXPR_BUILTIN_FUNCTIONS::PCB_EXPR_BUILTIN_FUNCTIONS()
{
m_funcs[ "onlayer" ] = onLayer;
m_funcs[ "isplated" ] = isPlated;
}
BOARD_ITEM* PCB_EXPR_VAR_REF::GetObject( LIBEVAL::UCODE* aUcode ) const
{
auto ucode = static_cast<const PCB_EXPR_UCODE*>( aUcode );
auto item = ucode->GetItem( m_itemIndex );
return item;
}
LIBEVAL::VALUE PCB_EXPR_VAR_REF::GetValue( LIBEVAL::UCODE* aUcode )
{
auto item = GetObject( aUcode );
auto it = m_matchingTypes.find( TYPE_HASH( *item ) );
if( it == m_matchingTypes.end() )
{
wxString msg;
msg.Printf("property not found for item of type: 0x%x!\n", TYPE_HASH( *item ) );
aUcode->RuntimeError( (const char *) msg.c_str() );
return LIBEVAL::VALUE( 0.0 );
}
else
{
if( m_type == LIBEVAL::VT_NUMERIC )
return LIBEVAL::VALUE( (double) item->Get<int>( it->second ) );
else
{
wxString str;
if( !m_isEnum )
{
//printf("item %p Get string '%s'\n", item, (const char*) it->second->Name().c_str() );
str = item->Get<wxString>( it->second );
} else {
const auto& any = item->Get( it->second );
any.GetAs<wxString>( &str );
//printf("item %p get enum: '%s'\n", item , (const char*) str.c_str() );
}
return LIBEVAL::VALUE( (const char*) str.c_str() );
}
}
}
LIBEVAL::UCODE::FUNC_PTR PCB_EXPR_UCODE::createFuncCall( LIBEVAL::COMPILER* aCompiler, const std::string& name )
{
auto registry = PCB_EXPR_BUILTIN_FUNCTIONS::Instance();
//printf("CreateFCall '%s' found %d\n", name.c_str(), registry.Get(name) != nullptr ? 1 : 0 );
auto f = registry.Get( name );
//printf("Cfc3\n");
//f(nullptr,nullptr,nullptr);
return f;
}
LIBEVAL::VAR_REF* PCB_EXPR_UCODE::createVarRef( LIBEVAL::COMPILER *aCompiler,
const std::string& var, const std::string& field )
{
PROPERTY_MANAGER& propMgr = PROPERTY_MANAGER::Instance();
auto classes = propMgr.GetAllClasses();
auto vref = new PCB_EXPR_VAR_REF( var == "A" ? 0 : 1 );
if( field.empty() ) // return reference to base object
return vref;
for( auto cls : classes )
{
if( propMgr.IsOfType( cls.type, TYPE_HASH( BOARD_ITEM ) ) )
{
PROPERTY_BASE* prop = propMgr.GetProperty( cls.type, field );
if( prop )
{
//printf("Field '%s' class %s ptr %p haschoices %d typeid %s\n", field.c_str(), (const char *) cls.name.c_str(), prop, !!prop->HasChoices(), typeid(*prop).name() );
vref->AddAllowedClass( cls.type, prop );
if( prop->TypeHash() == TYPE_HASH( int ) )
vref->SetType( LIBEVAL::VT_NUMERIC );
else if( prop->TypeHash() == TYPE_HASH( wxString ) )
vref->SetType( LIBEVAL::VT_STRING );
else if ( prop->HasChoices() )
{ // it's an enum, we treat it as string
vref->SetType( LIBEVAL::VT_STRING );
vref->SetIsEnum ( true );
}
else
{
(void) 0; // should we do anything here?
//printf("unmatched type for prop '%s'\n", field.c_str() );
//wxString msg;
//msg.Printf("Unrecognized type for property '%s'", field.c_str() );
//aCompiler->ReportError( (const char*) msg.c_str() );
}
}
}
}
return vref;
}
class PCB_UNIT_RESOLVER : public LIBEVAL::UNIT_RESOLVER
{
public:
virtual ~PCB_UNIT_RESOLVER()
{
}
virtual const std::vector<std::string>& GetSupportedUnits() const override
{
static const std::vector<std::string> pcbUnits = { "mil", "mm", "in" };
return pcbUnits;
}
virtual double Convert( const std::string aString, int unitId ) const override
{
double v = atof( aString.c_str() );
switch( unitId )
{
case 0:
return Mils2iu( v );
case 1:
return Millimeter2iu( v );
case 2:
return Mils2iu( v * 1000.0 );
default:
return v;
}
};
};
PCB_EXPR_COMPILER::PCB_EXPR_COMPILER()
{
m_unitResolver.reset( new PCB_UNIT_RESOLVER );
}
PCB_EXPR_EVALUATOR::PCB_EXPR_EVALUATOR()
{
m_error = false;
}
PCB_EXPR_EVALUATOR::~PCB_EXPR_EVALUATOR()
{
}
bool PCB_EXPR_EVALUATOR::Evaluate( const wxString& aExpr )
{
PCB_EXPR_UCODE ucode;
if( !m_compiler.Compile( (const char*) aExpr.c_str(), &ucode ) )
return false;
auto result = ucode.Run();
if( result->GetType() == LIBEVAL::VT_NUMERIC )
m_result = KiROUND( result->AsDouble() );
return true;
}
wxString PCB_EXPR_EVALUATOR::GetErrorString()
{
wxString errMsg;
return errMsg;
}