mirror of
https://github.com/RYDE-WORK/ballistica.git
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47 lines
1.3 KiB
Python
47 lines
1.3 KiB
Python
# Released under the MIT License. See LICENSE for details.
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#
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"""Json related tools functionality."""
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from __future__ import annotations
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import json
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from typing import TYPE_CHECKING
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if TYPE_CHECKING:
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from typing import Dict, Any
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class NoIndent:
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"""Used to prevent indenting in our custom json encoder.
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Wrap values in this before passing to encoder and all child
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values will be a single line in the json output."""
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def __init__(self, value: Any) -> None:
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self.value = value
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class NoIndentEncoder(json.JSONEncoder):
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"""Our custom encoder implementing selective indentation."""
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def __init__(self, *args: Any, **kwargs: Any):
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super().__init__(*args, **kwargs)
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self.kwargs = dict(kwargs)
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del self.kwargs['indent']
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self._replacement_map: Dict = {}
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def default(self, o: Any) -> Any:
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import uuid
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if isinstance(o, NoIndent):
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key = uuid.uuid4().hex
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self._replacement_map[key] = json.dumps(o.value, **self.kwargs)
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return '@@%s@@' % (key, )
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return super().default(o)
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def encode(self, o: Any) -> Any:
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result = super().encode(o)
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for k, v in self._replacement_map.items():
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result = result.replace('"@@%s@@"' % (k, ), v)
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return result
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