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Diffstat (limited to 'src/mem/slicc/ast/TypeAST.py')
-rw-r--r-- | src/mem/slicc/ast/TypeAST.py | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/mem/slicc/ast/TypeAST.py b/src/mem/slicc/ast/TypeAST.py new file mode 100644 index 000000000..209859b8d --- /dev/null +++ b/src/mem/slicc/ast/TypeAST.py @@ -0,0 +1,53 @@ +# 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 slicc.ast.AST import AST + +from slicc.symbols import Type + +class TypeAST(AST): + def __init__(self, slicc, ident): + super(TypeAST, self).__init__(slicc) + + self.ident = ident + + def __repr__(self): + return self.ident + + def __str__(self): + return self.ident + + @property + def type(self, assert_type=None): + type = self.symtab.find(self.ident, Type) + if not type: + self.error("Type '%s' not declared.", self) + + if assert_type is not None and type != assert_type: + self.error("Type '%s' is should be type '%s'", self, assert_type) + + return type |