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66 lines
1.8 KiB
Python
66 lines
1.8 KiB
Python
#!/usr/bin/env python
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"""A wrapper for dictionaries."""
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from . import apifunction
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from . import computedobject
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# Using lowercase function naming to match the JavaScript names.
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# pylint: disable=g-bad-name
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class Dictionary(computedobject.ComputedObject):
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"""An object to represent dictionaries."""
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_initialized = False
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def __init__(self, arg=None):
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"""Construct a dictionary.
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Args:
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arg: This constructor accepts the following args:
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1) Another dictionary.
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2) A list of key/value pairs.
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3) A null or no argument (producing an empty dictionary)
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"""
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self.initialize()
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if isinstance(arg, dict):
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super(Dictionary, self).__init__(None, None)
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self._dictionary = arg
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else:
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self._dictionary = None
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if (isinstance(arg, computedobject.ComputedObject)
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and arg.func
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and arg.func.getSignature()['returns'] == 'Dictionary'):
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# If it's a call that's already returning a Dictionary, just cast.
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super(Dictionary, self).__init__(arg.func, arg.args, arg.varName)
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else:
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# Delegate everything else to the server-side constructor.
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super(Dictionary, self).__init__(
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apifunction.ApiFunction('Dictionary'), {'input': arg})
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@classmethod
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def initialize(cls):
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"""Imports API functions to this class."""
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if not cls._initialized:
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apifunction.ApiFunction.importApi(cls, 'Dictionary', 'Dictionary')
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cls._initialized = True
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@classmethod
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def reset(cls):
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"""Removes imported API functions from this class."""
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apifunction.ApiFunction.clearApi(cls)
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cls._initialized = False
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@staticmethod
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def name():
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return 'Dictionary'
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def encode(self, opt_encoder=None):
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if self._dictionary is not None:
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return opt_encoder(self._dictionary)
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else:
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return super(Dictionary, self).encode(opt_encoder)
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