iverilog/vhdlpp/subprogram_emit.cc

80 lines
2.1 KiB
C++

/*
* Copyright (c) 2013 Stephen Williams (steve@icarus.com)
* Copyright CERN 2013 / Stephen Williams (steve@icarus.com)
*
* This source code is free software; you can redistribute it
* and/or modify it in source code form 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
# include "subprogram.h"
# include "sequential.h"
# include "vtype.h"
# include <iostream>
using namespace std;
int Subprogram::emit_package(ostream&fd) const
{
int errors = 0;
if (return_type_) {
fd << "function ";
return_type_->emit_def(fd);
fd << " " << name_;
fd << "(";
} else {
fd << "task " << name_ << ";" << endl;
}
for (list<InterfacePort*>::const_iterator cur = ports_->begin()
; cur != ports_->end() ; ++cur) {
if (cur != ports_->begin())
fd << ", ";
InterfacePort*curp = *cur;
switch (curp->mode) {
case PORT_IN:
fd << "input ";
break;
case PORT_OUT:
fd << "output ";
break;
case PORT_NONE:
fd << "inout /* PORT_NONE? */ ";
break;
}
errors += curp->type->emit_def(fd);
fd << " \\" << curp->name << " ";
}
fd << ");" << endl;
if (statements_) {
for (list<SequentialStmt*>::const_iterator cur = statements_->begin()
; cur != statements_->end() ; ++cur) {
errors += (*cur)->emit(fd, 0, 0);
}
} else {
fd << " begin /* empty body */ end" << endl;
}
if (return_type_)
fd << "endfunction" << endl;
else
fd << "endtask" << endl;
return errors;
}