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1#!/usr/bin/env python3
2# Copyright (c) Facebook, Inc. and its affiliates. (http://www.facebook.com)
3"""_imp provides basic importlib support."""
4
5import sys
6
7from _builtins import (
8 _builtin,
9 _code_check,
10 _code_guard,
11 _code_set_filename,
12 _str_guard,
13 _str_rpartition,
14 _unimplemented,
15)
16
17
18check_hash_based_pycs = "default"
19
20
21def create_builtin(spec):
22 _builtin()
23
24
25def _create_dynamic(name, path):
26 _builtin()
27
28
29def create_dynamic(spec):
30 _str_guard(spec.name)
31 _str_guard(spec.origin)
32 spec_name = spec.name
33 # Remove the import path from the extension module name
34 # TODO(T69088495): Encode in ASCII/punycode and replace '-' with '_'
35 if "." in spec_name:
36 short_name = _str_rpartition(spec_name, ".")[-1]
37 else:
38 short_name = spec_name
39 result = _create_dynamic(short_name, spec.origin)
40 sys.modules[spec_name] = result
41 return result
42
43
44def exec_builtin(module):
45 _builtin()
46
47
48def acquire_lock():
49 _builtin()
50
51
52def exec_dynamic(mod):
53 # TODO(T39542987): Enable multi-phase module initialization
54 pass
55
56
57def extension_suffixes():
58 return [".pyro.so", ".abi3.so", ".so"]
59
60
61def _code_update_filenames_recursive(code, old_name, new_name):
62 _code_set_filename(code, new_name)
63 for const in code.co_consts:
64 if _code_check(const):
65 _code_update_filenames_recursive(const, old_name, new_name)
66
67
68def _import_fastpath(name, fromlist, level):
69 _builtin()
70
71
72def _fix_co_filename(code, path):
73 _code_guard(code)
74 _str_guard(path)
75 old_name = code.co_filename
76 if old_name == path:
77 return
78 _code_update_filenames_recursive(code, old_name, path)
79
80
81def get_frozen_object(name):
82 _builtin()
83
84
85def init_frozen(name):
86 _unimplemented()
87
88
89def is_builtin(name):
90 _builtin()
91
92
93def is_frozen(name):
94 _builtin()
95
96
97def is_frozen_package(name):
98 _builtin()
99
100
101def lock_held():
102 _builtin()
103
104
105def release_lock():
106 _builtin()
107
108
109def source_hash(key, source):
110 _builtin()