1 files changed, 74 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/IfStatementAST.py b/src/mem/slicc/ast/IfStatementAST.py
new file mode 100644
index 000000000..788876fd1
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+++ b/src/mem/slicc/ast/IfStatementAST.py
@@ -0,0 +1,74 @@
+# Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
+# Copyright (c) 2009 The Hewlett-Packard Development Company
+# 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.
+
+from m5.util import code_formatter
+
+from slicc.ast.StatementAST import StatementAST
+from slicc.symbols import Type
+
+class IfStatementAST(StatementAST):
+    def __init__(self, slicc, cond, then, else_):
+        super(IfStatementAST, self).__init__(slicc)
+
+        assert cond is not None
+        assert then is not None
+
+        self.cond = cond
+        self.then = then
+        self.else_ = else_
+
+    def __repr__(self):
+        return "[IfStatement: %r%r%r]" % (self.cond, self.then, self.else_)
+
+    def generate(self, code, return_type):
+        cond_code = code_formatter()
+        cond_type = self.cond.generate(cond_code)
+
+        if cond_type != self.symtab.find("bool", Type):
+            self.cond.error("Condition of if stmt must be bool, type was '%s'",
+                            ctype)
+
+        # Conditional
+        code.indent()
+        code('if ($cond_code) {')
+        # Then part
+        code.indent()
+        self.then.generate(code, return_type)
+        code.dedent()
+        # Else part
+        if self.else_:
+            code('} else {')
+            code.indent()
+            self.else_.generate(code, return_type)
+            code.dedent()
+        code('}') # End scope
+
+    def findResources(self, resources):
+        # Take a worse case look at both paths
+        self.then.findResources(resources)
+        if self.else_ is not None:
+            self.else_.findResources(resources)