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