54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
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import execjs
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from abc import ABCMeta, abstractmethod
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import six
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@six.add_metaclass(ABCMeta)
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class AbstractRuntimeContext(object):
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'''
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Abstract base class for runtime context class.
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'''
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def exec_(self, source):
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'''Execute source by JavaScript runtime and return all output to stdout as a string.
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source -- JavaScript code to execute.
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'''
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if not self.is_available():
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raise execjs.RuntimeUnavailableError
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return self._exec_(source)
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def eval(self, source):
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'''Evaluate source in JavaScript runtime.
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source -- JavaScript code to evaluate.
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'''
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if not self.is_available():
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raise execjs.RuntimeUnavailableError
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return self._eval(source)
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def call(self, name, *args):
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'''Call a JavaScript function in context.
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name -- Name of funtion object to call
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args -- Arguments for the funtion object
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'''
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if not self.is_available():
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raise execjs.RuntimeUnavailableError
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return self._call(name, *args)
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@abstractmethod
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def is_available(self):
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raise NotImplementedError
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@abstractmethod
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def _exec_(self, source):
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raise NotImplementedError
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@abstractmethod
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def _eval(self, source):
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raise NotImplementedError
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@abstractmethod
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def _call(self, name, *args):
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raise NotImplementedError
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