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# Copyright 2013-2020 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)
import json
import os.path
try:
from collections.abc import MutableMapping # novm
except ImportError:
from collections import MutableMapping
compilers_schema = {
'type': 'object',
'properties': {
'versions': {'type': 'string'},
'name': {'type': 'string'},
'flags': {'type': 'string'}
},
'required': ['versions', 'flags']
}
properties = {
'microarchitectures': {
'type': 'object',
'patternProperties': {
r'([\w]*)': {
'type': 'object',
'properties': {
'from': {
'anyOf': [
# More than one parent
{'type': 'array', 'items': {'type': 'string'}},
# Exactly one parent
{'type': 'string'},
# No parent
{'type': 'null'}
]
},
'vendor': {
'type': 'string'
},
'features': {
'type': 'array',
'items': {'type': 'string'}
},
'compilers': {
'type': 'object',
'patternProperties': {
r'([\w]*)': {
'anyOf': [
compilers_schema,
{
'type': 'array',
'items': compilers_schema
}
]
}
}
}
},
'required': ['from', 'vendor', 'features']
}
}
},
'feature_aliases': {
'type': 'object',
'patternProperties': {
r'([\w]*)': {
'type': 'object',
'properties': {},
'additionalProperties': False
}
},
},
'conversions': {
'type': 'object',
'properties': {
'description': {
'type': 'string'
},
'arm_vendors': {
'type': 'object',
},
'darwin_flags': {
'type': 'object'
}
},
'additionalProperties': False
}
}
schema = {
'$schema': 'http://json-schema.org/schema#',
'title': 'Schema for microarchitecture definitions and feature aliases',
'type': 'object',
'additionalProperties': False,
'properties': properties,
}
class LazyDictionary(MutableMapping):
"""Lazy dictionary that gets constructed on first access to any object key
Args:
factory (callable): factory function to construct the dictionary
"""
def __init__(self, factory, *args, **kwargs):
self.factory = factory
self.args = args
self.kwargs = kwargs
self._data = None
@property
def data(self):
if self._data is None:
self._data = self.factory(*self.args, **self.kwargs)
return self._data
def __getitem__(self, key):
return self.data[key]
def __setitem__(self, key, value):
self.data[key] = value
def __delitem__(self, key):
del self.data[key]
def __iter__(self):
return iter(self.data)
def __len__(self):
return len(self.data)
def _load_targets_json():
"""Loads ``microarchitectures.json`` in memory."""
directory_name = os.path.dirname(os.path.abspath(__file__))
filename = os.path.join(directory_name, 'microarchitectures.json')
with open(filename, 'r') as f:
return json.load(f)
#: In memory representation of the data in microarchitectures.json,
#: loaded on first access
targets_json = LazyDictionary(_load_targets_json)
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