458d88eaad
- Added archspec to the list of vendored dependencies - Removed every reference to llnl.util.cpu - Removed tests from Spack code base
71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
# Copyright 2019-2020 Lawrence Livermore National Security, LLC and other
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# Archspec Project Developers. See the top-level COPYRIGHT file for details.
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#
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# SPDX-License-Identifier: (Apache-2.0 OR MIT)
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"""Global objects with the content of the microarchitecture
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JSON file and its schema
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"""
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import json
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import os.path
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try:
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from collections.abc import MutableMapping # novm
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except ImportError:
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from collections import MutableMapping
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class LazyDictionary(MutableMapping):
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"""Lazy dictionary that gets constructed on first access to any object key
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Args:
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factory (callable): factory function to construct the dictionary
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"""
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def __init__(self, factory, *args, **kwargs):
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self.factory = factory
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self.args = args
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self.kwargs = kwargs
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self._data = None
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@property
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def data(self):
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"""Returns the lazily constructed dictionary"""
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if self._data is None:
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self._data = self.factory(*self.args, **self.kwargs)
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return self._data
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def __getitem__(self, key):
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return self.data[key]
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def __setitem__(self, key, value):
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self.data[key] = value
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def __delitem__(self, key):
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del self.data[key]
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def __iter__(self):
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return iter(self.data)
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def __len__(self):
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return len(self.data)
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def _load_json_file(json_file):
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json_dir = os.path.join(os.path.dirname(__file__), "..", "json", "cpu")
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json_dir = os.path.abspath(json_dir)
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def _factory():
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filename = os.path.join(json_dir, json_file)
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with open(filename, "r") as file:
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return json.load(file)
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return _factory
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#: In memory representation of the data in microarchitectures.json,
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#: loaded on first access
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TARGETS_JSON = LazyDictionary(_load_json_file("microarchitectures.json"))
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#: JSON schema for microarchitectures.json, loaded on first access
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SCHEMA = LazyDictionary(_load_json_file("microarchitectures_schema.json"))
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