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author | Derek Hower <drh5@cs.wisc.edu> | 2010-01-19 15:48:12 -0600 |
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committer | Derek Hower <drh5@cs.wisc.edu> | 2010-01-19 15:48:12 -0600 |
commit | 279f179babc9e5663156777c533c06edc91bce9a (patch) | |
tree | e6718ee514cc81678491b50562ce8c463c0b20fd /src/mem/slicc/ast/ExprStatementAST.py | |
parent | 5aa104e072eb20f6aca49b169521b0c2da33c844 (diff) | |
parent | 295516a590b6e47c9a881f193027447e500c749c (diff) | |
download | gem5-279f179babc9e5663156777c533c06edc91bce9a.tar.xz |
merge
Diffstat (limited to 'src/mem/slicc/ast/ExprStatementAST.py')
-rw-r--r-- | src/mem/slicc/ast/ExprStatementAST.py | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/ExprStatementAST.py b/src/mem/slicc/ast/ExprStatementAST.py new file mode 100644 index 000000000..b16d1d072 --- /dev/null +++ b/src/mem/slicc/ast/ExprStatementAST.py @@ -0,0 +1,52 @@ +# 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 ExprStatementAST(StatementAST): + def __init__(self, slicc, expr): + super(ExprStatementAST, self).__init__(slicc) + self.expr = expr + + def __repr__(self): + return "[ExprStatementAST: %s]" % (self.expr) + + def generate(self, code, return_type): + actual_type,rcode = self.expr.inline(True) + code("$rcode;") + + # The return type must be void + if actual_type != self.symtab.find("void", Type): + self.expr.error("Non-void return must not be ignored, " + \ + "return type is '%s'", actual_type.ident) + + def findResources(self, resources): + self.expr.findResources(resources) + |