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
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+++ b/src/mem/slicc/ast/IfStatementAST.cc
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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.
+ */
+
+/*
+ * 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 << "]";
+}