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/*
* Copyright (c) 1999-2021 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 "config.h"
# include "PTask.h"
# include "Statement.h"
# include <cassert>
# include "ivl_assert.h"
using namespace std;
PFunction::PFunction(perm_string name, LexicalScope*parent, bool is_auto__)
: PTaskFunc(name, parent), statement_(0)
{
is_auto_ = is_auto__;
return_type_ = 0;
}
PFunction::~PFunction()
{
}
void PFunction::set_statement(Statement*s)
{
assert(s != 0);
assert(statement_ == 0);
statement_ = s;
}
void PFunction::push_statement_front(Statement*stmt)
{
// This should not be possible.
ivl_assert(*this, statement_);
// Get the PBlock of the statement. If it is not a PBlock,
// then create one to wrap the existing statement and the new
// statement that we're pushing.
PBlock*blk = dynamic_cast<PBlock*> (statement_);
if (blk == 0) {
PBlock*tmp = new PBlock(PBlock::BL_SEQ);
tmp->set_line(*this);
vector<Statement*>tmp_list(1);
tmp_list[0] = statement_;
tmp->set_statement(tmp_list);
statement_ = tmp;
blk = tmp;
}
// Now do the push.
blk->push_statement_front(stmt);
}
void PFunction::set_return(data_type_t*t)
{
return_type_ = t;
}
PChainConstructor* PFunction::extract_chain_constructor()
{
PChainConstructor*res = 0;
if ((res = dynamic_cast<PChainConstructor*> (statement_))) {
statement_ = new PBlock(PBlock::BL_SEQ);
statement_->set_line(*this);
} else if (PBlock*blk = dynamic_cast<PBlock*>(statement_)) {
res = blk->extract_chain_constructor();
}
return res;
}
PNamedItem::SymbolType PFunction::symbol_type() const
{
return FUNCTION;
}
PLet::PLet(perm_string name, LexicalScope*parent, list<let_port_t*>*ports,
PExpr*expr)
: PTaskFunc(name, parent), ports_(ports), expr_(expr)
{
}
PLet::~PLet()
{
}
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