134 lines
3.3 KiB
C++
134 lines
3.3 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2019-2020 KiCad Developers, see AUTHORS.txt for contributors.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
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* or you may search the http://www.gnu.org website for the version 2 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __PCB_EXPR_EVALUATOR_H
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#define __PCB_EXPR_EVALUATOR_H
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#include <unordered_map>
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#include <property.h>
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#include <property_mgr.h>
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#include <libeval_compiler/libeval_compiler.h>
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class BOARD_ITEM;
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class PCB_EXPR_VAR_REF;
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class PCB_EXPR_UCODE : public LIBEVAL::UCODE
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{
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public:
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virtual LIBEVAL::VAR_REF* createVarRef( LIBEVAL::COMPILER *aCompiler,
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const std::string& var, const std::string& field ) override;
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virtual FUNC_PTR createFuncCall( LIBEVAL::COMPILER* aCompiler, const std::string& name ) override;
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void SetItems( BOARD_ITEM* a, BOARD_ITEM* b = nullptr )
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{
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m_items[0] = a;
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m_items[1] = b;
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}
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BOARD_ITEM* GetItem( int index ) const
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{
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return m_items[index];
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}
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private:
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BOARD_ITEM* m_items[2];
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};
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class PCB_EXPR_VAR_REF : public LIBEVAL::VAR_REF
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{
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public:
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PCB_EXPR_VAR_REF( int aItemIndex ) :
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m_itemIndex( aItemIndex ),
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m_type( LIBEVAL::VT_UNDEFINED ),
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m_isEnum( false )
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{
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//printf("*** createVarRef %p %d\n", this, aItemIndex );
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}
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void SetIsEnum( bool s ) { m_isEnum = s; }
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bool IsEnum() const { return m_isEnum; }
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void SetType( LIBEVAL::VAR_TYPE_T type )
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{
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m_type = type;
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}
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void AddAllowedClass( TYPE_ID type_hash, PROPERTY_BASE* prop )
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{
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m_matchingTypes[type_hash] = prop;
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}
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virtual LIBEVAL::VAR_TYPE_T GetType() override
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{
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return m_type;
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}
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virtual LIBEVAL::VALUE GetValue( LIBEVAL::UCODE* aUcode ) override;
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BOARD_ITEM* GetObject( LIBEVAL::UCODE* aUcode ) const;
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private:
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std::unordered_map<TYPE_ID, PROPERTY_BASE*> m_matchingTypes;
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int m_itemIndex;
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LIBEVAL::VAR_TYPE_T m_type;
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bool m_isEnum;
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};
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class PCB_EXPR_COMPILER : public LIBEVAL::COMPILER
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{
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public:
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PCB_EXPR_COMPILER();
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};
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class PCB_EXPR_EVALUATOR
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{
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public:
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PCB_EXPR_EVALUATOR();
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~PCB_EXPR_EVALUATOR();
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bool Evaluate( const wxString& aExpr );
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int Result() const { return m_result; }
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LIBEVAL::ERROR_STATUS GetErrorStatus() { return m_errorStatus; }
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private:
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int m_result;
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PCB_EXPR_COMPILER m_compiler;
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PCB_EXPR_UCODE m_ucode;
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LIBEVAL::ERROR_STATUS m_errorStatus;
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};
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#endif
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