63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
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/*
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* Copyright (c) 2011 Stephen Williams (steve@icarus.com)
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*
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* This source code is free software; you can redistribute it
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* and/or modify it in source code form under the terms of the GNU
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* General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* 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, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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* Picture Elements, Inc., 777 Panoramic Way, Berkeley, CA 94704.
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*/
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# include "expression.h"
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# include "architec.h"
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# include "entity.h"
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# include <iostream>
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using namespace std;
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int Expression::elaborate_lval(Entity*, Architecture*)
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{
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cerr << get_fileline() << ": error: Expression is not a valie l-value." << endl;
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return 1;
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}
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int ExpName::elaborate_lval(Entity*ent, Architecture*arc)
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{
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int errors = 0;
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if (const InterfacePort*cur = ent->find_port(name_)) {
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if (cur->mode != PORT_OUT) {
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cerr << get_fileline() << ": error: Assignment to "
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"input port " << name_ << "." << endl;
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return errors += 1;
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}
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ent->set_declaration_l_value(name_, true);
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return errors;
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}
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Signal*sig = arc->find_signal(name_);
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if (sig == 0) {
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cerr << get_fileline() << ": error: Signal/variable " << name_
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<< " not found in this context." << endl;
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return errors + 1;
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}
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return errors;
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}
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int ExpNameALL::elaborate_lval(Entity*ent, Architecture*arc)
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{
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return Expression::elaborate_lval(ent, arc);
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}
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