This reverts commit 0c99ba1eab63865592bb084feb271cd4e4b0357e, reversing
changes made to 5f92b070bf284f1493b1b5d433dd3adde2f46727.
This caused a CI failure when it landed in master branch due to a
128-bit `@byteSwap` in std.mem.
Most of this migration was performed automatically with `zig fmt`. There
were a few exceptions which I had to manually fix:
* `@alignCast` and `@addrSpaceCast` cannot be automatically rewritten
* `@truncate`'s fixup is incorrect for vectors
* Test cases are not formatted, and their error locations change
Adress review comments from https://github.com/ziglang/zig/pull/13977
by using the same naming convention as zstd.
And by using `finish()` instead of `close()` for the finalisation of the compressed stream.
rationale:
- it is not the same as how close() is usually used, since it must be called to flush and write the final bytes. And as such it may fail.
- it is not the same `flush` in the deflate code, which allows to keep writting more bytes later, and doesn't write the final checksum.
- it is the same name as used in the original zlib library (Z_FINISH)
Also, use a packed struct for the header, which seems a better fit.
- Previously, some of the compress tests used `@src()` in combination with `dirname` and `openDirAbsolute` to read test files at runtime, which both excludes platforms that `openDirAbsolute` is not implemented for (WASI) and platforms that `SourceLocation.file` is not absolute (this was true for me locally on Windows). Instead of converting the tests to use `fs.cwd().openDir`, they have been converted to use `@embedFile` to avoid any potential problems with the runtime cwd.
- In order to use `@embedFile`, some of the `[]u8` parameters needed to be changed to `[]const u8`; none of them needed to be non-const anyway
- The tests now use `expectEqual` and `expectEqualSlices` where appropriate for better diagnostics
Replaces the inflate API from `inflateStream(reader: anytype, window_slice: []u8)` to
`decompressor(allocator: mem.Allocator, reader: anytype, dictionary: ?[]const u8)` and
`compressor(allocator: mem.Allocator, writer: anytype, options: CompressorOptions)`
Read bytes to check expected values instead of reading and hashing them.
Hashing is a waste of time when we can just read and compare.
This also removes a dependency on std.crypto.hash.sha2.Sha256 for tests.
We already have a LICENSE file that covers the Zig Standard Library. We
no longer need to remind everyone that the license is MIT in every single
file.
Previously this was introduced to clarify the situation for a fork of
Zig that made Zig's LICENSE file harder to find, and replaced it with
their own license that required annual payments to their company.
However that fork now appears to be dead. So there is no need to
reinforce the copyright notice in every single file.
