1 files changed, 79 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/ReturnStatementAST.cc b/src/mem/slicc/ast/ReturnStatementAST.cc
new file mode 100644
index 000000000..68e81b834
--- /dev/null
+++ b/src/mem/slicc/ast/ReturnStatementAST.cc
@@ -0,0 +1,79 @@
+
+/*
+ * 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.
+ */
+
+/*
+ * ReturnStatementAST.C
+ *
+ * Description: See ReturnStatementAST.h
+ *
+ * $Id$
+ *
+ */
+
+#include "ReturnStatementAST.hh"
+
+ReturnStatementAST::ReturnStatementAST(ExprAST* expr_ptr)
+  : StatementAST()
+{
+  m_expr_ptr = expr_ptr;
+}
+
+ReturnStatementAST::~ReturnStatementAST()
+{
+  delete m_expr_ptr;
+}
+
+void ReturnStatementAST::generate(string& code, Type* return_type_ptr) const
+{
+  code += indent_str();
+  code += "return ";
+  Type* actual_type_ptr = m_expr_ptr->generate(code);
+  code += ";\n";
+
+  // Is return valid here?
+  if (return_type_ptr == NULL) {
+    error("Invalid 'return' statement");
+  }
+
+  // The return type must match the return_type_ptr
+  if (return_type_ptr != actual_type_ptr) {
+    m_expr_ptr->error("Return type miss-match, expected return type is '" + return_type_ptr->toString() +
+                      "', actual is '" + actual_type_ptr->toString() + "'");
+  }
+}
+
+void ReturnStatementAST::findResources(Map<Var*, string>& resource_list) const
+{
+  m_expr_ptr->findResources(resource_list);
+}
+
+void ReturnStatementAST::print(ostream& out) const
+{
+  out << "[ReturnStatementAST: " << *m_expr_ptr << "]";
+}