cpython

Commit Graph

Author	SHA1	Message	Date
Victor Stinner	2ec8063cc9	Modify _PyBytes_DecodeEscapeRecode() to use _PyBytesAPI * Don't overallocate by 400% when recode is needed: only overallocate on demand using _PyBytesWriter. * Use _PyLong_DigitValue to convert hexadecimal digit to int * Create _PyBytes_DecodeEscapeRecode() subfunction	10 years ago
Victor Stinner	f6358a7e4c	_PyBytesWriter_Alloc(): only use 10 bytes of the small buffer in debug mode to enhance code to detect buffer under- and overflow.	10 years ago
Victor Stinner	2bf8993db9	Optimize bytes.fromhex() and bytearray.fromhex() Issue #25401: Optimize bytes.fromhex() and bytearray.fromhex(): they are now between 2x and 3.5x faster. Changes: * Use a fast-path working on a char* string for ASCII string * Use a slow-path for non-ASCII string * Replace slow hex_digit_to_int() function with a O(1) lookup in _PyLong_DigitValue precomputed table * Use _PyBytesWriter API to handle the buffer * Add unit tests to check the error position in error messages	10 years ago
Victor Stinner	772b2b09f2	Optimize bytearray % args Issue #25399: Don't create temporary bytes objects: modify _PyBytes_Format() to create work directly on bytearray objects. * Rename _PyBytes_Format() to _PyBytes_FormatEx() just in case if something outside CPython uses it * _PyBytes_FormatEx() now uses (char, Py_ssize_t) for the input string, so bytearray_format() doesn't need tot create a temporary input bytes object Add use_bytearray parameter to _PyBytes_FormatEx() which is passed to _PyBytesWriter, to create a bytearray buffer instead of a bytes buffer Most formatting operations are now between 2.5 and 5 times faster.	10 years ago
Victor Stinner	661aaccf9d	Add use_bytearray attribute to _PyBytesWriter Issue #25399: Add a new use_bytearray attribute to _PyBytesWriter to use a bytearray buffer, instead of using a bytes object.	10 years ago
Victor Stinner	03dab786b2	Rewrite PyBytes_FromFormatV() using _PyBytesWriter API * Add much more unit tests on PyBytes_FromFormatV() * Remove the first loop to compute the length of the output string * Use _PyBytesWriter to handle the bytes buffer, use overallocation * Cleanup the code to make simpler and easier to review	10 years ago
Victor Stinner	e9aa5950bb	Fix compilation error in _PyBytesWriter_WriteBytes() on Windows	10 years ago
Victor Stinner	6c2cdae9e6	Writer APIs: use empty string singletons Modify _PyBytesWriter_Finish() and _PyUnicodeWriter_Finish() to return the empty bytes/Unicode string if the string is empty.	10 years ago
Victor Stinner	c29e29bed1	Relax _PyBytesWriter API Don't require _PyBytesWriter pointer to be a "char ". Same change for _PyBytesWriter_WriteBytes() parameter. For example, binascii uses "unsigned char".	10 years ago
Victor Stinner	0cdad1e2bc	Issue #25349 : Add fast path for b'%c' % int Optimize also %% formater.	10 years ago
Victor Stinner	be75b8cf23	Issue #25349 : Optimize bytes % int Optimize bytes.__mod__(args) for integere formats: %d (%i, %u), %o, %x and %X. _PyBytesWriter is now used to format directly the integer into the writer buffer, instead of using a temporary bytes object. Formatting is between 30% and 50% faster on a microbenchmark.	10 years ago
Victor Stinner	ce179bf6ba	Add _PyBytesWriter_WriteBytes() to factorize the code	10 years ago
Victor Stinner	ad7715891e	_PyBytesWriter: simplify code to avoid "prealloc" parameters Substract preallocate bytes from min_size before calling _PyBytesWriter_Prepare().	10 years ago
Victor Stinner	53926a1ce2	_PyBytesWriter: rename size attribute to min_size	10 years ago
Victor Stinner	fa7762ec06	Issue #25349 : Optimize bytes % args using the new private _PyBytesWriter API * Thanks to the _PyBytesWriter API, output smaller than 512 bytes are allocated on the stack and so avoid calling _PyBytes_Resize(). Because of that, change the default buffer size to fmtcnt instead of fmtcnt+100. * Rely on _PyBytesWriter algorithm to overallocate the buffer instead of using a custom code. For example, _PyBytesWriter uses a different overallocation factor (25% or 50%) depending on the platform to get best performances. * Disable overallocation for the last write. * Replace C loops to fill characters with memset() * Add also many comments to _PyBytes_Format() * Remove unused FORMATBUFLEN constant * Avoid the creation of a temporary bytes object when formatting a floating point number (when no custom formatting option is used) * Fix also reference leaks on error handling * Use Py_MEMCPY() to copy bytes between two formatters (%)	10 years ago
Victor Stinner	b3653a3458	Issue #25318 : cleanup code _PyBytesWriter Rename "stack buffer" to "small buffer". Add also an assertion in _PyBytesWriter_GetPos().	10 years ago
Victor Stinner	b13b97d3b8	Issue #25318 : Fix compilation error Replace "#if Py_DEBUG" with "#ifdef Py_DEBUG".	10 years ago
Victor Stinner	0016507c16	Issue #25318 : Move _PyBytesWriter to bytesobject.c Declare also the private API in bytesobject.h.	10 years ago
Serhiy Storchaka	d92d4efe3d	Issue #23573 : Restored optimization of bytes.rfind() and bytearray.rfind() for single-byte argument on Linux.	11 years ago
Serhiy Storchaka	fa494fd883	Issue #24115 : Update uses of PyObject_IsTrue(), PyObject_Not(), PyObject_IsInstance(), PyObject_RichCompareBool() and _PyDict_Contains() to check for and handle errors correctly.	11 years ago
Serhiy Storchaka	8b2e8b6cce	Specify default values of semantic booleans in Argument Clinic generated signatures as booleans.	11 years ago
Gregory P. Smith	8cb6569fe1	Implements issue #9951 : Adds a hex() method to bytes, bytearray, & memoryview. Also updates a few internal implementations of the same thing to use the new built-in code. Contributed by Arnon Yaari.	11 years ago
Christian Heimes	4e25913f9f	Remove local dead code. In both blocks dir is always greater 0.	11 years ago
Larry Hastings	89964c48d1	Issue #23944 : Argument Clinic now wraps long impl prototypes at column 78.	11 years ago
Serhiy Storchaka	1009bf18b3	Issue #23501 : Argumen Clinic now generates code into separate files by default.	11 years ago
Serhiy Storchaka	41525e31a5	Issue #23466 : Raised OverflowError if %c argument is out of range.	11 years ago
Serhiy Storchaka	2c7b5a9d0d	Issue #23466 : %c, %o, %x, and %X in bytes formatting now raise TypeError on non-integer input.	11 years ago
Victor Stinner	dabbfe7b30	Issue #23573 : Fix bytes.rfind() and bytearray.rfind() on Windows Windows has no memrchr() function. This change is only a workaround, the optimization must be reenabled on other platforms.	11 years ago
Serhiy Storchaka	d9d769fcdd	Issue #23573 : Increased performance of string search operations (str.find, str.index, str.count, the in operator, str.split, str.partition) with arguments of different kinds (UCS1, UCS2, UCS4).	11 years ago
Serhiy Storchaka	1dd49824df	Issue #23681 : The -b option now affects comparisons of bytes with int.	11 years ago
Ethan Furman	62e977f1b6	Close issue23467: add %r compatibility to bytes and bytearray	11 years ago
Antoine Pitrou	a654510150	Issue #23629 : Fix the default __sizeof__ implementation for variable-sized objects.	11 years ago
Serhiy Storchaka	26861b0b29	Issue #23450 : Fixed possible integer overflows.	11 years ago
Serhiy Storchaka	ea5ce5a15e	Issue #23383 : Cleaned up bytes formatting.	11 years ago
Serhiy Storchaka	83848704f5	Issue #22896 : Fixed using _getbuffer() in recently added _PyBytes_Format().	11 years ago
Serhiy Storchaka	4fdb68491e	Issue #22896 : Avoid to use PyObject_AsCharBuffer(), PyObject_AsReadBuffer() and PyObject_AsWriteBuffer().	11 years ago
Victor Stinner	5474d0ba19	Issue #20284 : Fix a compilation warning on Windows Explicitly cast the long to char.	11 years ago
Benjamin Peterson	a8efc9601d	ensure ilen is initialized when it is assigned to len	11 years ago
Ethan Furman	b95b56150f	Issue20284: Implement PEP461	11 years ago
Serhiy Storchaka	83cf99d733	Issue #20335 : bytes constructor now raises TypeError when encoding or errors is specified with non-string argument. Based on patch by Renaud Blanch.	11 years ago
Larry Hastings	dfbeb160de	Issue #22615 : Argument Clinic now supports the "type" argument for the int converter. This permits using the int converter with enums and typedefs.	11 years ago
R David Murray	861470c836	#16518 : Bring error messages in harmony with docs ("bytes-like object") Some time ago we changed the docs to consistently use the term 'bytes-like object' in all the contexts where bytes, bytearray, memoryview, etc are used. This patch (by Ezio Melotti) completes that work by changing the error messages that previously reported that certain types did "not support the buffer interface" to instead say that a bytes-like object is required. (The glossary entry for bytes-like object references the discussion of the buffer protocol in the docs.)	11 years ago
Benjamin Peterson	d48bc9468f	these variables ought to be Py_ssize_t	11 years ago
Benjamin Peterson	42ff105539	fix overflow checking in PyBytes_Repr (closes #22519 )	11 years ago
Serhiy Storchaka	20b39b27d9	Removed redundant casts to `char `. Corresponding functions now accept `const char ` (issue #1772673).	11 years ago
Serhiy Storchaka	d8a1447c99	Issue #22215 : Now ValueError is raised instead of TypeError when str or bytes argument contains not permitted null character or byte.	11 years ago
Victor Stinner	049e509a9f	Issue #22207 : Fix "comparison between signed and unsigned integers" warning in test checking for integer overflow on Py_ssize_t type: cast explicitly to size_t.	12 years ago
Victor Stinner	88d146b7b9	Optimize PyBytes_FromObject(): only overallocate when size=0 to not get the empty string singleton	12 years ago
Terry Jan Reedy	ffff1440d1	Issue #22077 : Improve index error messages for bytearrays, bytes, lists, and tuples by adding 'or slices'. Added ', not <typename' for bytearrays. Original patch by Claudiu Popa.	12 years ago
Martin v. Löwis	0efea322a9	Rerun AC, silence pointer conversion warnings.	12 years ago

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251 Commits (2ec8063cc960d32e244dc6a27567f66a447bbda3)