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Diffstat (limited to 'src/mem/slicc/ast/IfStatementAST.cc')
| -rw-r--r-- | src/mem/slicc/ast/IfStatementAST.cc | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/IfStatementAST.cc b/src/mem/slicc/ast/IfStatementAST.cc new file mode 100644 index 000000000..372b213d8 --- /dev/null +++ b/src/mem/slicc/ast/IfStatementAST.cc @@ -0,0 +1,98 @@ + +/* + * 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. + */ + +/* + * IfStatementAST.C + * + * Description: See IfStatementAST.h + * + * $Id$ + * + */ + +#include "IfStatementAST.hh" + +IfStatementAST::IfStatementAST(ExprAST* cond_ptr, + StatementListAST* then_ptr, + StatementListAST* else_ptr) + : StatementAST() +{ + assert(cond_ptr != NULL); + assert(then_ptr != NULL); + m_cond_ptr = cond_ptr; + m_then_ptr = then_ptr; + m_else_ptr = else_ptr; +} + +IfStatementAST::~IfStatementAST() +{ + delete m_cond_ptr; + delete m_then_ptr; + delete m_else_ptr; +} + + +void IfStatementAST::generate(string& code, Type* return_type_ptr) const +{ + Type* type_ptr; + + // Conditional + code += indent_str() + "if ("; + type_ptr = m_cond_ptr->generate(code); + if (type_ptr != g_sym_table.getType("bool")) { + m_cond_ptr->error("Condition of if statement must be boolean, type was '" + type_ptr->toString() + "'"); + } + code += ") {\n"; + // Then part + inc_indent(); + m_then_ptr->generate(code, return_type_ptr); + dec_indent(); + // Else part + if (m_else_ptr != NULL) { + code += indent_str() + "} else {\n"; + inc_indent(); + m_else_ptr->generate(code, return_type_ptr); + dec_indent(); + } + code += indent_str() + "}\n"; // End scope +} + +void IfStatementAST::findResources(Map<Var*, string>& resource_list) const +{ + // Take a worse case look at both paths + m_then_ptr->findResources(resource_list); + if (m_else_ptr != NULL) { + m_else_ptr->findResources(resource_list); + } +} + +void IfStatementAST::print(ostream& out) const +{ + out << "[IfStatement: " << *m_cond_ptr << *m_then_ptr << *m_else_ptr << "]"; +} |