44 lines
1.4 KiB
Python
44 lines
1.4 KiB
Python
from abc import ABCMeta, abstractmethod
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import six
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import execjs._exceptions as exceptions
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@six.add_metaclass(ABCMeta)
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class AbstractRuntime(object):
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'''
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Abstract base class for runtime class.
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'''
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def exec_(self, source, cwd=None):
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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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cwd -- Directory where call JavaScript runtime. It may be ignored in some derived class.
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'''
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return self.compile('', cwd=cwd).exec_(source)
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def eval(self, source, cwd=None):
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'''Evaluate source in JavaScript runtime.
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source -- JavaScript code to evaluate.
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cwd -- Directory where call JavaScript runtime. It may be ignored in some derived class.
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'''
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return self.compile('', cwd=cwd).eval(source)
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def compile(self, source, cwd=None):
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'''Bulk source as a context object. The source can be used to execute another code.
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source -- JavaScript code to bulk.
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cwd -- Directory where call JavaScript runtime. It may be ignored in some derived class.
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'''
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if not self.is_available():
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raise exceptions.RuntimeUnavailableError
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return self._compile(source, cwd=cwd)
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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 _compile(self, source, cwd=None):
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raise NotImplementedError
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