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Diffstat (limited to 'src/mem/slicc/ast/PeekStatementAST.cc')
-rw-r--r-- | src/mem/slicc/ast/PeekStatementAST.cc | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/PeekStatementAST.cc b/src/mem/slicc/ast/PeekStatementAST.cc new file mode 100644 index 000000000..96e97f18b --- /dev/null +++ b/src/mem/slicc/ast/PeekStatementAST.cc @@ -0,0 +1,115 @@ + +/* + * 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.h + * + * $Id$ + * + */ + +#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 + << "]"; +} |