doc/changelog.md - third_party/wuffs - Git at Google

 # Changelog


 ## Work In Progress

 - Renamed Puffs to Wuffs.
 - Ship as a "single file C library"
 - Added a `skipgendeps` flag.
 - Added a `nullptr` literal and `nptr T` type.
 - Added `io_bind` and `io_limit` keywords.
 - Added a `use` keyword.
 - Added a `yield` keyword.
 - Made the `return` value mandatory; added `ok` literal.
 - Restricted `var` statements to the top of functions.
 - Dropped the `= RHS` out of `var x T = RHS`.
 - Changed func out-type from struct to bare type.
 - Renamed the implicit `in` variable to `args`.
 - Added an implicit `coroutine_resumed` variable.
 - Added `std/adler32`, `std/crc32` and `std/gzip`.
 - Spun `std/lzw` out of `std/gif`.
 - Spun `std/zlib` out of `std/flate`.
 - Let the `std/zlib` decoder ignore checksums.
 - Renamed `std/flate` to `std/deflate`.
 - Renamed `!=` to `<>`; `!` is now only for impure functions.
 - Renamed `~+` to `~mod+`; added `~mod-`, `~sat+` and `~sat-`.
 - Removed `&^`.
 - Renamed `$(etc)` to `[etc]`.
 - Renamed `[N] T` and `[] T` types to `array[N] T` and `slice T`.
 - Renamed `buf1`, `reader1`, etc to `io_buffer`, `io_reader`, etc.
 - Renamed `u32`, `io_reader`, etc to `base.u32`, `base.io_reader`, etc.
 - Renamed `unread_u8?` to `undo_byte!`; added `can_undo_byte`.
 - Renamed some `decode?` methods to `decode_io_writer?`.
 - Replaced `= try foo` with `=? foo`.
 - Prohibited effect-ful subexpressions.
 - Redesigned iterate blocks.
 - Added `{frame,image,pixel}_config` and `pixel_buffer` types.
 - Added a `reset` method.
 - Added `peek_uxx`, `skip_fast` and `write_fast_uxx` methods.
 - Renamed some `read_uxx` methods as `read_uxx_as_uyy`.
 - Report image metadata such as ICCP and XMP.
 - Added I/O positions.
 - Added extra fields (uninitialized internal buffers) to structs.
 - Tweaked how marks and limits work.
 - Supported animated (not just single frame) and interlaced GIFs.
 - Marked some internal status codes as private.
 - Removed closed-for-read/write built-in status codes.
 - Changed the string messages for built-in status codes.
 - Changed `error "foo"` to `"#foo"` or `base."#bar"`.
 - Added warnings as another status code category.
 - Made the status type a `const char *`, not an `int32_t`.
 - Disallowed `__double_underscore` prefixed names.
 - Moved the base38 package from `lang/base38` to `lib/base38`.
 - Added a stand-alone `lib/interval` package.
 - Added fuzz tests.
 - Added `WUFFS_CONFIG__MODULES`.
 - Added `WUFFS_CONFIG__STATIC_FUNCTIONS`.
 - Added some C++ convenience methods.
 - Added some Go and Rust benchmarks.
 - Made struct implementations private (opaque pointers).
 - Sped up the `mimic_deflate_xxx` benchmarks.


 ## 2017-11-16

 - [Initial open source
   release](https://groups.google.com/d/topic/puffslang/2z61mNTAMns/discussion),
   under the "Puffs" name.


 ---

 Updated on April 2019.
	# Changelog


	## Work In Progress

	- Renamed Puffs to Wuffs.
	- Ship as a "single file C library"
	- Added a `skipgendeps` flag.
	- Added a `nullptr` literal and `nptr T` type.
	- Added `io_bind` and `io_limit` keywords.
	- Added a `use` keyword.
	- Added a `yield` keyword.
	- Made the `return` value mandatory; added `ok` literal.
	- Restricted `var` statements to the top of functions.
	- Dropped the `= RHS` out of `var x T = RHS`.
	- Changed func out-type from struct to bare type.
	- Renamed the implicit `in` variable to `args`.
	- Added an implicit `coroutine_resumed` variable.
	- Added `std/adler32`, `std/crc32` and `std/gzip`.
	- Spun `std/lzw` out of `std/gif`.
	- Spun `std/zlib` out of `std/flate`.
	- Let the `std/zlib` decoder ignore checksums.
	- Renamed `std/flate` to `std/deflate`.
	- Renamed `!=` to `<>`; `!` is now only for impure functions.
	- Renamed `~+` to `~mod+`; added `~mod-`, `~sat+` and `~sat-`.
	- Removed `&^`.
	- Renamed `$(etc)` to `[etc]`.
	- Renamed `[N] T` and `[] T` types to `array[N] T` and `slice T`.
	- Renamed `buf1`, `reader1`, etc to `io_buffer`, `io_reader`, etc.
	- Renamed `u32`, `io_reader`, etc to `base.u32`, `base.io_reader`, etc.
	- Renamed `unread_u8?` to `undo_byte!`; added `can_undo_byte`.
	- Renamed some `decode?` methods to `decode_io_writer?`.
	- Replaced `= try foo` with `=? foo`.
	- Prohibited effect-ful subexpressions.
	- Redesigned iterate blocks.
	- Added `{frame,image,pixel}_config` and `pixel_buffer` types.
	- Added a `reset` method.
	- Added `peek_uxx`, `skip_fast` and `write_fast_uxx` methods.
	- Renamed some `read_uxx` methods as `read_uxx_as_uyy`.
	- Report image metadata such as ICCP and XMP.
	- Added I/O positions.
	- Added extra fields (uninitialized internal buffers) to structs.
	- Tweaked how marks and limits work.
	- Supported animated (not just single frame) and interlaced GIFs.
	- Marked some internal status codes as private.
	- Removed closed-for-read/write built-in status codes.
	- Changed the string messages for built-in status codes.
	- Changed `error "foo"` to `"#foo"` or `base."#bar"`.
	- Added warnings as another status code category.
	- Made the status type a `const char *`, not an `int32_t`.
	- Disallowed `__double_underscore` prefixed names.
	- Moved the base38 package from `lang/base38` to `lib/base38`.
	- Added a stand-alone `lib/interval` package.
	- Added fuzz tests.
	- Added `WUFFS_CONFIG__MODULES`.
	- Added `WUFFS_CONFIG__STATIC_FUNCTIONS`.
	- Added some C++ convenience methods.
	- Added some Go and Rust benchmarks.
	- Made struct implementations private (opaque pointers).
	- Sped up the `mimic_deflate_xxx` benchmarks.


	## 2017-11-16

	- [Initial open source
	release](https://groups.google.com/d/topic/puffslang/2z61mNTAMns/discussion),
	under the "Puffs" name.


	---

	Updated on April 2019.