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110 lines
3.2 KiB
110 lines
3.2 KiB
#!/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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def __init__(self, lineno): |
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self.line_number = lineno |
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def lineno(self): |
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return self.line_number |
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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, lineno): |
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Expression.__init__(self, lineno) |
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self.value = value |
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def get_value(self): |
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return self.value |
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class StringExpression(Expression): |
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def __init__(self, value, lineno): |
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Expression.__init__(self, lineno) |
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self.value = value |
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class AtomStatement(Statement): |
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def __init__(self, value, lineno): |
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Statement.__init__(self, lineno) |
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assert(type(value) == type('')) |
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self.value = value |
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def get_value(self): |
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return self.value |
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class StringStatement(Statement): |
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def __init__(self, value, lineno): |
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assert(type(value) == type('')) |
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Statement.__init__(self, lineno) |
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self.value = value |
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def get_string(self): |
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return self.value |
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class FunctionCall(Statement): |
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def __init__(self, func_name, arguments, lineno): |
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Statement.__init__(self, lineno) |
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self.func_name = func_name |
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self.arguments = arguments |
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def get_function_name(self): |
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return self.func_name.value |
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class MethodCall(Statement): |
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def __init__(self, object_name, method_name, arguments, lineno): |
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Statement.__init__(self, lineno) |
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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, lineno): |
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Statement.__init__(self, lineno) |
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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, lineno): |
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Statement.__init__(self, lineno) |
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self.statements = [] |
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def prepend(self, statement): |
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self.statements = [statement] + self.statements |
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def get_statements(self): |
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return self.statements |
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class Arguments(Statement): |
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def __init__(self, lineno): |
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Statement.__init__(self, lineno) |
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self.arguments = [] |
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def prepend(self, statement): |
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self.arguments = [statement] + self.arguments |
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def __len__(self): |
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return len(self.arguments) |
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def statement_from_expression(expr): |
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if isinstance(expr, AtomExpression): |
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return AtomStatement(expr.value, expr.lineno()) |
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if isinstance(expr, StringExpression): |
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return StringStatement(expr.value, expr.lineno()) |
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raise RuntimeError('Can not convert unknown expression to a statement.')
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