108 lines
3.1 KiB
C++
108 lines
3.1 KiB
C++
/*
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* This file is part of the Colobot: Gold Edition source code
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* Copyright (C) 2001-2016, Daniel Roux, EPSITEC SA & TerranovaTeam
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* http://epsitec.ch; http://colobot.info; http://github.com/colobot
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (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.
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* See the 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, see http://gnu.org/licenses
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*/
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#include "CBot/CBotInstr/CBotThrow.h"
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#include "CBot/CBotInstr/CBotExpression.h"
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#include "CBot/CBotStack.h"
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#include "CBot/CBotCStack.h"
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namespace CBot
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{
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////////////////////////////////////////////////////////////////////////////////
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CBotThrow::CBotThrow()
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{
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m_value = nullptr;
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}
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////////////////////////////////////////////////////////////////////////////////
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CBotThrow::~CBotThrow()
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{
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delete m_value;
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}
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////////////////////////////////////////////////////////////////////////////////
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CBotInstr* CBotThrow::Compile(CBotToken* &p, CBotCStack* pStack)
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{
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pStack->SetStartError(p->GetStart());
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CBotThrow* inst = new CBotThrow(); // creates the object
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inst->SetToken(p);
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CBotToken* pp = p; // preserves at the ^ token (starting position)
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if (!IsOfType(p, ID_THROW)) return nullptr; // should never happen
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inst->m_value = CBotExpression::Compile(p, pStack );
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if (pStack->GetType() < CBotTypLong && pStack->IsOk())
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{
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return inst; // return an object to the application
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}
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pStack->SetError(CBotErrBadType1, pp);
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delete inst; // error, frees up
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return nullptr; // no object, the error is on the stack
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}
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////////////////////////////////////////////////////////////////////////////////
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bool CBotThrow::Execute(CBotStack* &pj)
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{
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CBotStack* pile = pj->AddStack(this);
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// if ( pile == EOX ) return true;
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if ( pile->GetState() == 0 )
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{
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if ( !m_value->Execute(pile) ) return false;
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pile->IncState();
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}
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if ( pile->IfStep() ) return false;
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int val = pile->GetVal();
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if ( val < 0 ) val = CBotErrBadThrow;
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pile->SetError( static_cast<CBotError>(val), &m_token );
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return pj->Return( pile );
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}
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////////////////////////////////////////////////////////////////////////////////
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void CBotThrow::RestoreState(CBotStack* &pj, bool bMain)
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{
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if ( !bMain ) return;
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CBotStack* pile = pj->RestoreStack(this);
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if ( pile == nullptr ) return;
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if ( pile->GetState() == 0 )
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{
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m_value->RestoreState(pile, bMain);
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return;
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}
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}
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std::map<std::string, CBotInstr*> CBotThrow::GetDebugLinks()
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{
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auto links = CBotInstr::GetDebugLinks();
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links["m_value"] = m_value;
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return links;
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}
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} // namespace CBot
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