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78 lines
2.2 KiB
78 lines
2.2 KiB
12 years ago
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#!/usr/bin/python3 -tt
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# Copyright 2012 Jussi Pakkanen
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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# http://www.apache.org/licenses/LICENSE-2.0
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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class Node():
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pass
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class Expression(Node):
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pass
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class Statement(Node):
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pass
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class AtomExpression(Expression):
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def __init__(self, value):
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Expression.__init__(self)
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self.value = value
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class StringExpression(Expression):
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def __init__(self, value):
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Expression.__init__(self)
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self.value = value
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class AtomStatement(Statement):
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def __init__(self, value):
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Statement.__init__(self)
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assert(type(value) == type(''))
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self.value = value
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class StringStatement(Statement):
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def __init__(self, value):
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assert(type(value) == type(''))
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Statement.__init__(self)
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self.value = value
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class FunctionCall(Statement):
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def __init__(self, func_name, arguments):
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Statement.__init__(self)
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self.func_name = func_name
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self.arguments = arguments
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class MethodCall(Statement):
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def __init__(self, object_name, method_name, arguments):
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Statement.__init__(self)
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self.object_name = object_name
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self.method_name = method_name
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self.arguments = arguments
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class Assignment(Statement):
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def __init__(self, var_name, value):
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Statement.__init__(self)
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self.var_name = var_name
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self.value = value
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class CodeBlock(Statement):
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def __init__(self):
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Statement.__init__(self)
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self.statements = []
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def statement_from_expression(expr):
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if type(expr) == type(AtomExpression(None)):
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return AtomStatement(expr.value)
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if type(expr) == type(StringExpression(None)):
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return StringStatement(expr.value)
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raise RuntimeError('Can not convert unknown expression to a statement.')
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