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gh-132983: Convert zstd ``__new__`` methods to Argument Clinic (#133860) · python/cpython@d29ddbd · GitHub

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  2. cpython

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AA-Turner
authored
gh-132983: Convert zstd __new__ methods to Argument Clinic (#133860)
1 parent 0eb448c commit d29ddbd

16 files changed

Lines changed: 275 additions & 371 deletions

‎Include/internal/pycore_global_objects_fini_generated.h‎

Lines changed: 0 additions & 1 deletion
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‎Include/internal/pycore_global_strings.h‎

Lines changed: 0 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -393,7 +393,6 @@ struct _Py_global_strings {
393393
STRUCT_FOR_ID(deterministic)
394394
STRUCT_FOR_ID(device)
395395
STRUCT_FOR_ID(dict)
396-
STRUCT_FOR_ID(dict_content)
397396
STRUCT_FOR_ID(dictcomp)
398397
STRUCT_FOR_ID(difference_update)
399398
STRUCT_FOR_ID(digest)

‎Include/internal/pycore_runtime_init_generated.h‎

Lines changed: 0 additions & 1 deletion
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‎Include/internal/pycore_unicodeobject_generated.h‎

Lines changed: 0 additions & 4 deletions
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‎Lib/test/test_zstd.py‎

Lines changed: 14 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -288,8 +288,8 @@ def test_unknown_compression_parameter(self):
288288
KEY = 100001234
289289
option = {CompressionParameter.compression_level: 10,
290290
KEY: 200000000}
291-
pattern = r'Zstd compression parameter.*?"unknown parameter \(key %d\)"' \
292-
% KEY
291+
pattern = (r'Invalid zstd compression parameter.*?'
292+
fr'"unknown parameter \(key {KEY}\)"')
293293
with self.assertRaisesRegex(ZstdError, pattern):
294294
ZstdCompressor(options=option)
295295

@@ -420,8 +420,8 @@ def test_unknown_decompression_parameter(self):
420420
KEY = 100001234
421421
options = {DecompressionParameter.window_log_max: DecompressionParameter.window_log_max.bounds()[1],
422422
KEY: 200000000}
423-
pattern = r'Zstd decompression parameter.*?"unknown parameter \(key %d\)"' \
424-
% KEY
423+
pattern = (r'Invalid zstd decompression parameter.*?'
424+
fr'"unknown parameter \(key {KEY}\)"')
425425
with self.assertRaisesRegex(ZstdError, pattern):
426426
ZstdDecompressor(options=options)
427427

@@ -507,7 +507,7 @@ def test_decompress_epilogue_flags(self):
507507
self.assertFalse(d.needs_input)
508508

509509
def test_decompressor_arg(self):
510-
zd = ZstdDict(b'12345678', True)
510+
zd = ZstdDict(b'12345678', is_raw=True)
511511

512512
with self.assertRaises(TypeError):
513513
d = ZstdDecompressor(zstd_dict={})
@@ -1021,6 +1021,10 @@ def test_decompressor_skippable(self):
10211021
class ZstdDictTestCase(unittest.TestCase):
10221022

10231023
def test_is_raw(self):
1024+
# must be passed as a keyword argument
1025+
with self.assertRaises(TypeError):
1026+
ZstdDict(bytes(8), True)
1027+
10241028
# content < 8
10251029
b = b'1234567'
10261030
with self.assertRaises(ValueError):
@@ -1068,9 +1072,9 @@ def test_invalid_dict(self):
10681072

10691073
# corrupted
10701074
zd = ZstdDict(dict_content, is_raw=False)
1071-
with self.assertRaisesRegex(ZstdError, r'ZSTD_CDict.*?corrupted'):
1075+
with self.assertRaisesRegex(ZstdError, r'ZSTD_CDict.*?content\.$'):
10721076
ZstdCompressor(zstd_dict=zd.as_digested_dict)
1073-
with self.assertRaisesRegex(ZstdError, r'ZSTD_DDict.*?corrupted'):
1077+
with self.assertRaisesRegex(ZstdError, r'ZSTD_DDict.*?content\.$'):
10741078
ZstdDecompressor(zd)
10751079

10761080
# wrong type
@@ -1096,7 +1100,7 @@ def test_train_dict(self):
10961100

10971101

10981102
TRAINED_DICT = train_dict(SAMPLES, DICT_SIZE1)
1099-
ZstdDict(TRAINED_DICT.dict_content, False)
1103+
ZstdDict(TRAINED_DICT.dict_content, is_raw=False)
11001104

11011105
self.assertNotEqual(TRAINED_DICT.dict_id, 0)
11021106
self.assertGreater(len(TRAINED_DICT.dict_content), 0)
@@ -1250,7 +1254,7 @@ def _nbytes(dat):
12501254
def test_as_prefix(self):
12511255
# V1
12521256
V1 = THIS_FILE_BYTES
1253-
zd = ZstdDict(V1, True)
1257+
zd = ZstdDict(V1, is_raw=True)
12541258

12551259
# V2
12561260
mid = len(V1) // 2
@@ -1266,7 +1270,7 @@ def test_as_prefix(self):
12661270
self.assertEqual(decompress(dat, zd.as_prefix), V2)
12671271

12681272
# use wrong prefix
1269-
zd2 = ZstdDict(SAMPLES[0], True)
1273+
zd2 = ZstdDict(SAMPLES[0], is_raw=True)
12701274
try:
12711275
decompressed = decompress(dat, zd2.as_prefix)
12721276
except ZstdError: # expected

‎Modules/_zstd/_zstdmodule.c‎

Lines changed: 30 additions & 35 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,4 @@
1-
/*
2-
Low level interface to Meta's zstd library for use in the compression.zstd
3-
Python module.
4-
*/
1+
/* Low level interface to the Zstandard algorthm & the zstd library. */
52

63
#ifndef Py_BUILD_CORE_BUILTIN
74
# define Py_BUILD_CORE_MODULE 1
@@ -34,17 +31,17 @@ set_zstd_error(const _zstd_state* const state,
3431
switch (type)
3532
{
3633
case ERR_DECOMPRESS:
37-
msg = "Unable to decompress zstd data: %s";
34+
msg = "Unable to decompress Zstandard data: %s";
3835
break;
3936
case ERR_COMPRESS:
40-
msg = "Unable to compress zstd data: %s";
37+
msg = "Unable to compress Zstandard data: %s";
4138
break;
4239

4340
case ERR_LOAD_D_DICT:
44-
msg = "Unable to load zstd dictionary or prefix for decompression: %s";
41+
msg = "Unable to load Zstandard dictionary or prefix for decompression: %s";
4542
break;
4643
case ERR_LOAD_C_DICT:
47-
msg = "Unable to load zstd dictionary or prefix for compression: %s";
44+
msg = "Unable to load Zstandard dictionary or prefix for compression: %s";
4845
break;
4946

5047
case ERR_GET_C_BOUNDS:
@@ -58,10 +55,10 @@ set_zstd_error(const _zstd_state* const state,
5855
break;
5956

6057
case ERR_TRAIN_DICT:
61-
msg = "Unable to train zstd dictionary: %s";
58+
msg = "Unable to train the Zstandard dictionary: %s";
6259
break;
6360
case ERR_FINALIZE_DICT:
64-
msg = "Unable to finalize zstd dictionary: %s";
61+
msg = "Unable to finalize the Zstandard dictionary: %s";
6562
break;
6663

6764
default:
@@ -152,7 +149,7 @@ set_parameter_error(const _zstd_state* const state, int is_compress,
152149
}
153150
if (ZSTD_isError(bounds.error)) {
154151
PyErr_Format(state->ZstdError,
155-
"Zstd %s parameter \"%s\" is invalid.",
152+
"Invalid zstd %s parameter \"%s\".",
156153
type, name);
157154
return;
158155
}
@@ -187,13 +184,13 @@ _zstd.train_dict
187184
The size of the dictionary.
188185
/
189186
190-
Internal function, train a zstd dictionary on sample data.
187+
Train a Zstandard dictionary on sample data.
191188
[clinic start generated code]*/
192189

193190
static PyObject *
194191
_zstd_train_dict_impl(PyObject *module, PyBytesObject *samples_bytes,
195192
PyObject *samples_sizes, Py_ssize_t dict_size)
196-
/*[clinic end generated code: output=8e87fe43935e8f77 input=70fcd8937f2528b6]*/
193+
/*[clinic end generated code: output=8e87fe43935e8f77 input=d20dedb21c72cb62]*/
197194
{
198195
// TODO(emmatyping): The preamble and suffix to this function and _finalize_dict
199196
// are pretty similar. We should see if we can refactor them to share that code.
@@ -258,7 +255,7 @@ _zstd_train_dict_impl(PyObject *module, PyBytesObject *samples_bytes,
258255
chunk_sizes, (uint32_t)chunks_number);
259256
Py_END_ALLOW_THREADS
260257

261-
/* Check zstd dict error */
258+
/* Check Zstandard dict error */
262259
if (ZDICT_isError(zstd_ret)) {
263260
_zstd_state* const mod_state = get_zstd_state(module);
264261
set_zstd_error(mod_state, ERR_TRAIN_DICT, zstd_ret);
@@ -292,18 +289,18 @@ _zstd.finalize_dict
292289
dict_size: Py_ssize_t
293290
The size of the dictionary.
294291
compression_level: int
295-
Optimize for a specific zstd compression level, 0 means default.
292+
Optimize for a specific Zstandard compression level, 0 means default.
296293
/
297294
298-
Internal function, finalize a zstd dictionary.
295+
Finalize a Zstandard dictionary.
299296
[clinic start generated code]*/
300297

301298
static PyObject *
302299
_zstd_finalize_dict_impl(PyObject *module, PyBytesObject *custom_dict_bytes,
303300
PyBytesObject *samples_bytes,
304301
PyObject *samples_sizes, Py_ssize_t dict_size,
305302
int compression_level)
306-
/*[clinic end generated code: output=f91821ba5ae85bda input=130d1508adb55ba1]*/
303+
/*[clinic end generated code: output=f91821ba5ae85bda input=3c7e2480aa08fb56]*/
307304
{
308305
Py_ssize_t chunks_number;
309306
size_t *chunk_sizes = NULL;
@@ -360,7 +357,7 @@ _zstd_finalize_dict_impl(PyObject *module, PyBytesObject *custom_dict_bytes,
360357

361358
/* Parameters */
362359

363-
/* Optimize for a specific zstd compression level, 0 means default. */
360+
/* Optimize for a specific Zstandard compression level, 0 means default. */
364361
params.compressionLevel = compression_level;
365362
/* Write log to stderr, 0 = none. */
366363
params.notificationLevel = 0;
@@ -376,7 +373,7 @@ _zstd_finalize_dict_impl(PyObject *module, PyBytesObject *custom_dict_bytes,
376373
(uint32_t)chunks_number, params);
377374
Py_END_ALLOW_THREADS
378375

379-
/* Check zstd dict error */
376+
/* Check Zstandard dict error */
380377
if (ZDICT_isError(zstd_ret)) {
381378
_zstd_state* const mod_state = get_zstd_state(module);
382379
set_zstd_error(mod_state, ERR_FINALIZE_DICT, zstd_ret);
@@ -407,12 +404,12 @@ _zstd.get_param_bounds
407404
is_compress: bool
408405
True for CompressionParameter, False for DecompressionParameter.
409406
410-
Internal function, get CompressionParameter/DecompressionParameter bounds.
407+
Get CompressionParameter/DecompressionParameter bounds.
411408
[clinic start generated code]*/
412409

413410
static PyObject *
414411
_zstd_get_param_bounds_impl(PyObject *module, int parameter, int is_compress)
415-
/*[clinic end generated code: output=4acf5a876f0620ca input=84e669591e487008]*/
412+
/*[clinic end generated code: output=4acf5a876f0620ca input=45742ef0a3531b65]*/
416413
{
417414
ZSTD_bounds bound;
418415
if (is_compress) {
@@ -442,24 +439,22 @@ _zstd.get_frame_size
442439
A bytes-like object, it should start from the beginning of a frame,
443440
and contains at least one complete frame.
444441
445-
Get the size of a zstd frame, including frame header and 4-byte checksum if it has one.
446-
447-
It will iterate all blocks' headers within a frame, to accumulate the frame size.
442+
Get the size of a Zstandard frame, including the header and optional checksum.
448443
[clinic start generated code]*/
449444

450445
static PyObject *
451446
_zstd_get_frame_size_impl(PyObject *module, Py_buffer *frame_buffer)
452-
/*[clinic end generated code: output=a7384c2f8780f442 input=7d3ad24311893bf3]*/
447+
/*[clinic end generated code: output=a7384c2f8780f442 input=3b9f73f8c8129d38]*/
453448
{
454449
size_t frame_size;
455450

456451
frame_size = ZSTD_findFrameCompressedSize(frame_buffer->buf, frame_buffer->len);
457452
if (ZSTD_isError(frame_size)) {
458453
_zstd_state* const mod_state = get_zstd_state(module);
459454
PyErr_Format(mod_state->ZstdError,
460-
"Error when finding the compressed size of a zstd frame. "
461-
"Make sure the frame_buffer argument starts from the "
462-
"beginning of a frame, and its length not less than this "
455+
"Error when finding the compressed size of a Zstandard frame. "
456+
"Ensure the frame_buffer argument starts from the "
457+
"beginning of a frame, and its length is not less than this "
463458
"complete frame. Zstd error message: %s.",
464459
ZSTD_getErrorName(frame_size));
465460
return NULL;
@@ -472,14 +467,14 @@ _zstd_get_frame_size_impl(PyObject *module, Py_buffer *frame_buffer)
472467
_zstd.get_frame_info
473468
474469
frame_buffer: Py_buffer
475-
A bytes-like object, containing the header of a zstd frame.
470+
A bytes-like object, containing the header of a Zstandard frame.
476471
477-
Internal function, get zstd frame infomation from a frame header.
472+
Get Zstandard frame infomation from a frame header.
478473
[clinic start generated code]*/
479474

480475
static PyObject *
481476
_zstd_get_frame_info_impl(PyObject *module, Py_buffer *frame_buffer)
482-
/*[clinic end generated code: output=56e033cf48001929 input=1816f14656b6aa22]*/
477+
/*[clinic end generated code: output=56e033cf48001929 input=94b240583ae22ca5]*/
483478
{
484479
uint64_t decompressed_size;
485480
uint32_t dict_id;
@@ -494,9 +489,9 @@ _zstd_get_frame_info_impl(PyObject *module, Py_buffer *frame_buffer)
494489
_zstd_state* const mod_state = get_zstd_state(module);
495490
PyErr_SetString(mod_state->ZstdError,
496491
"Error when getting information from the header of "
497-
"a zstd frame. Make sure the frame_buffer argument "
492+
"a Zstandard frame. Ensure the frame_buffer argument "
498493
"starts from the beginning of a frame, and its length "
499-
"not less than the frame header (6~18 bytes).");
494+
"is not less than the frame header (6~18 bytes).");
500495
return NULL;
501496
}
502497

@@ -518,13 +513,13 @@ _zstd.set_parameter_types
518513
d_parameter_type: object(subclass_of='&PyType_Type')
519514
DecompressionParameter IntEnum type object
520515
521-
Internal function, set CompressionParameter/DecompressionParameter types for validity check.
516+
Set CompressionParameter and DecompressionParameter types for validity check.
522517
[clinic start generated code]*/
523518

524519
static PyObject *
525520
_zstd_set_parameter_types_impl(PyObject *module, PyObject *c_parameter_type,
526521
PyObject *d_parameter_type)
527-
/*[clinic end generated code: output=f3313b1294f19502 input=30402523871b8280]*/
522+
/*[clinic end generated code: output=f3313b1294f19502 input=75d7a953580fae5f]*/
528523
{
529524
_zstd_state* const mod_state = get_zstd_state(module);
530525

‎Modules/_zstd/_zstdmodule.h‎

Lines changed: 1 addition & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,4 @@
1-
/*
2-
Low level interface to Meta's zstd library for use in the compression.zstd
3-
Python module.
4-
*/
1+
/* Low level interface to the Zstandard algorthm & the zstd library. */
52

63
/* Declarations shared between different parts of the _zstd module*/
74

‎Modules/_zstd/buffer.h‎

Lines changed: 1 addition & 4 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,4 @@
1-
/*
2-
Low level interface to Meta's zstd library for use in the compression.zstd
3-
Python module.
4-
*/
1+
/* Low level interface to the Zstandard algorthm & the zstd library. */
52

63
#ifndef ZSTD_BUFFER_H
74
#define ZSTD_BUFFER_H

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