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/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met: redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer;
* redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution;
* neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/*
* ReturnStatementAST.C
*
* Description: See ReturnStatementAST.hh
*
* $Id$
*
*/
#include "mem/slicc/ast/ReturnStatementAST.hh"
ReturnStatementAST::ReturnStatementAST(ExprAST* expr_ptr)
: StatementAST()
{
m_expr_ptr = expr_ptr;
}
ReturnStatementAST::~ReturnStatementAST()
{
delete m_expr_ptr;
}
void ReturnStatementAST::generate(string& code, Type* return_type_ptr) const
{
code += indent_str();
code += "return ";
Type* actual_type_ptr = m_expr_ptr->generate(code);
code += ";\n";
// Is return valid here?
if (return_type_ptr == NULL) {
error("Invalid 'return' statement");
}
// The return type must match the return_type_ptr
if (return_type_ptr != actual_type_ptr) {
m_expr_ptr->error("Return type miss-match, expected return type is '" + return_type_ptr->toString() +
"', actual is '" + actual_type_ptr->toString() + "'");
}
}
void ReturnStatementAST::findResources(Map<Var*, string>& resource_list) const
{
m_expr_ptr->findResources(resource_list);
}
void ReturnStatementAST::print(ostream& out) const
{
out << "[ReturnStatementAST: " << *m_expr_ptr << "]";
}
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