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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.
*/
/*
* PeekStatementAST.C
*
* Description: See PeekStatementAST.hh
*
* $Id$
*
*/
#include "mem/slicc/ast/PeekStatementAST.hh"
#include "mem/slicc/symbols/SymbolTable.hh"
#include "mem/slicc/ast/StatementListAST.hh"
#include "mem/slicc/ast/TypeAST.hh"
#include "mem/slicc/ast/VarExprAST.hh"
PeekStatementAST::PeekStatementAST(VarExprAST* queue_name_ptr,
TypeAST* type_ptr,
StatementListAST* statementlist_ptr,
string method)
: StatementAST()
{
m_queue_name_ptr = queue_name_ptr;
m_type_ptr = type_ptr;
m_statementlist_ptr = statementlist_ptr;
m_method = method;
}
PeekStatementAST::~PeekStatementAST()
{
delete m_queue_name_ptr;
delete m_type_ptr;
delete m_statementlist_ptr;
}
void PeekStatementAST::generate(string& code, Type* return_type_ptr) const
{
code += indent_str() + "{\n"; // Start scope
inc_indent();
g_sym_table.pushFrame();
Type* msg_type_ptr = m_type_ptr->lookupType();
// Add new local var to symbol table
g_sym_table.newSym(new Var("in_msg", getLocation(), msg_type_ptr, "(*in_msg_ptr)", getPairs()));
// Check the queue type
m_queue_name_ptr->assertType("InPort");
// Declare the new "in_msg_ptr" variable
code += indent_str() + "const " + msg_type_ptr->cIdent() + "* in_msg_ptr;\n"; // Declare message
// code += indent_str() + "in_msg_ptr = static_cast<const ";
code += indent_str() + "in_msg_ptr = dynamic_cast<const ";
code += msg_type_ptr->cIdent() + "*>(";
code += "(" + m_queue_name_ptr->getVar()->getCode() + ")";
code += ".";
code += m_method;
code += "());\n";
code += indent_str() + "assert(in_msg_ptr != NULL);\n"; // Check the cast result
if(CHECK_INVALID_RESOURCE_STALLS) {
// Declare the "in_buffer_rank" variable
code += indent_str() + "int in_buffer_rank = "; // Declare message
code += "(" + m_queue_name_ptr->getVar()->getCode() + ")";
code += ".getPriority();\n";
}
m_statementlist_ptr->generate(code, return_type_ptr); // The other statements
dec_indent();
g_sym_table.popFrame();
code += indent_str() + "}\n"; // End scope
}
void PeekStatementAST::findResources(Map<Var*, string>& resource_list) const
{
m_statementlist_ptr->findResources(resource_list);
}
void PeekStatementAST::print(ostream& out) const
{
out << "[PeekStatementAST: " << m_method
<< " queue_name: " << *m_queue_name_ptr
<< " type: " << m_type_ptr->toString()
<< " " << *m_statementlist_ptr
<< "]";
}
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