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#!/usr/bin/python
# Copyright 2016 The ANGLE Project Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
#
# angle_format.py:
# Utils for ANGLE formats.
import json
import os
def reject_duplicate_keys(pairs):
found_keys = {}
for key, value in pairs:
if key in found_keys:
raise ValueError("duplicate key: %r" % (key,))
else:
found_keys[key] = value
return found_keys
def load_json(path):
with open(path) as map_file:
file_data = map_file.read()
map_file.close()
return json.loads(file_data, object_pairs_hook=reject_duplicate_keys)
def load_forward_table(path):
pairs = load_json(path)
reject_duplicate_keys(pairs)
return { gl: angle for gl, angle in pairs }
def load_inverse_table(path):
pairs = load_json(path)
reject_duplicate_keys(pairs)
return { angle: gl for gl, angle in pairs }
def load_with_override(override_path):
map_path = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'angle_format_map.json')
results = load_forward_table(map_path)
overrides = load_json(override_path)
for k, v in overrides.iteritems():
results[k] = v
return results
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