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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.
*/
/*
* VarExprAST.C
*
* Description: See VarExprAST.h
*
* $Id$
*
*/
#include "mem/slicc/ast/VarExprAST.hh"
#include "mem/slicc/ast/StatementAST.hh"
#include "mem/slicc/symbols/SymbolTable.hh"
VarExprAST::~VarExprAST()
{
delete m_var_ptr;
}
Var* VarExprAST::getVar() const
{
string var = *m_var_ptr;
Var* var_ptr = g_sym_table.getVar(var);
if (var_ptr == NULL) {
error("Unrecognized variable: " + var);
}
return var_ptr;
}
void VarExprAST::assertType(string type_ident) const
{
Type* expected_type_ptr = g_sym_table.getType(type_ident);
if (expected_type_ptr == NULL) {
error("There must be a type '" + type_ident + "' declared in this scope");
}
if (getVar()->getType() != expected_type_ptr) {
error("Incorrect type: '" + getVar()->getIdent() + "' is expected to be type '" + expected_type_ptr->toString() + "'");
}
}
Type* VarExprAST::generate(string& code) const
{
Var* var_ptr = getVar();
code += var_ptr->getCode();
return var_ptr->getType();
}
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