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std.fmt.Formatter -> std.fmt.Alt
std.fmt.format -> std.Io.Writer.print
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and delete deprecated alias std.io
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Introduces `std.fmt.alt` which is a helper for calling alternate format
methods besides one named "format".
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added adapter to AnyWriter and GenericWriter to help bridge the gap
between old and new API
make std.testing.expectFmt work at compile-time
std.fmt no longer has a dependency on std.unicode. Formatted printing
was never properly unicode-aware. Now it no longer pretends to be.
Breakage/deprecations:
* std.fs.File.reader -> std.fs.File.deprecatedReader
* std.fs.File.writer -> std.fs.File.deprecatedWriter
* std.io.GenericReader -> std.io.Reader
* std.io.GenericWriter -> std.io.Writer
* std.io.AnyReader -> std.io.Reader
* std.io.AnyWriter -> std.io.Writer
* std.fmt.format -> std.fmt.deprecatedFormat
* std.fmt.fmtSliceEscapeLower -> std.ascii.hexEscape
* std.fmt.fmtSliceEscapeUpper -> std.ascii.hexEscape
* std.fmt.fmtSliceHexLower -> {x}
* std.fmt.fmtSliceHexUpper -> {X}
* std.fmt.fmtIntSizeDec -> {B}
* std.fmt.fmtIntSizeBin -> {Bi}
* std.fmt.fmtDuration -> {D}
* std.fmt.fmtDurationSigned -> {D}
* {} -> {f} when there is a format method
* format method signature
- anytype -> *std.io.Writer
- inferred error set -> error{WriteFailed}
- options -> (deleted)
* std.fmt.Formatted
- now takes context type explicitly
- no fmt string
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preparing to rearrange std.io namespace into an interface
how to upgrade:
std.io.getStdIn() -> std.fs.File.stdin()
std.io.getStdOut() -> std.fs.File.stdout()
std.io.getStdErr() -> std.fs.File.stderr()
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This function is sometimes used to assume a canonical representation of
a path. However, when the `Path` referred to `root_dir` itself, this
function previously resolved `sub_path` to ".", which is incorrect; per
doc comments, it should set `sub_path` to "".
This fix ultimately didn't solve what I was trying to solve, though I'm
still PRing it, because it's still *correct*. The background to this
commit is quite interesting and worth briefly discussing.
I originally worked on this to try and fix a bug in the build system,
where if the root package (i.e. the one you `zig build`) depends on
package X which itself depends back on the root package (through a
`.path` dependency), invalid dependency modules are generated. I hit
this case working on ziglang/translate-c, which wants to depend on
"examples" (similar to the Zig compiler's "standalone" test cases) which
themselves depend back on the translate-c package. However, after this
patch just turned that error into another, I realised that this case
simply cannot work, because `std.Build` needs to eagerly execute build
scripts at `dependency` calls to learn which artifacts, modules, etc,
exist.
...at least, that's how the build system is currently designed. One can
imagine a world where `dependency` sort of "queues" the call, `artifact`
and `module` etc just pretend that the thing exists, and all configure
functions are called non-recursively by the runner. The downside is that
it becomes impossible to query state set by a dependency's configure
script. For instance, if a dependency exposes an artifact, it would
become impossible to get that artifact's resolved target in the
configure phase. However, as well as allowing recursive package imports
(which are certainly kinda nifty), it would also make lazy dependencies
far more useful! Right now, lazy dependencies only really work if you
use options (`std.Build.option`) to block their usage, since any call to
`lazyDependency` causes the dependency to be fetched. However, if we
made this change, lazy dependencies could be made far more versatile by
only fetching them *if the final step plan requires them*. I'm not 100%
sure if this is a good idea or not, but I might open an issue for it
soon.
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Embrace the Path abstraction, doing more operations based on directory
handles rather than absolute file paths. Most of the diff noise here
comes from this one.
Fix sorting of crtbegin/crtend atoms. Previously it would look at all
path components for those strings.
Make the C runtime path detection partially a pure function, and move
some logic to glibc.zig where it belongs.
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The compiler actually doesn't need any functional changes for this: Sema
does reification based on the tag indices of `std.builtin.Type` already!
So, no zig1.wasm update is necessary.
This change is necessary to disallow name clashes between fields and
decls on a type, which is a prerequisite of #9938.
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with debug info resolved.
begin efforts of providing `std.debug.Info`, a cross-platform
abstraction for loading debug information into an in-memory format that
supports queries such as "what is the source location of this virtual
memory address?"
Unlike `std.debug.SelfInfo`, this API does not assume the debug
information in question happens to match the host CPU architecture, OS,
or other target properties.
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This function previously wrote a trailing directory separator, but
that's not correct if the path refers to a file.
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Otherwise it reports EBADF.
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Helpful methods when using one of these structs as a hash table key.
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* std.fs.Dir: Rename OpenDirOptions to OpenOptions
https://ziglang.org/documentation/master/#Avoid-Redundant-Names-in-Fully-Qualified-Namespaces
* std.fs.Dir: Add deprecated alias `OpenDirOptions`
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Deprecated aliases that are now compile errors:
- `std.fs.MAX_PATH_BYTES` (renamed to `std.fs.max_path_bytes`)
- `std.mem.tokenize` (split into `tokenizeAny`, `tokenizeSequence`, `tokenizeScalar`)
- `std.mem.split` (split into `splitSequence`, `splitAny`, `splitScalar`)
- `std.mem.splitBackwards` (split into `splitBackwardsSequence`, `splitBackwardsAny`, `splitBackwardsScalar`)
- `std.unicode`
+ `utf16leToUtf8Alloc`, `utf16leToUtf8AllocZ`, `utf16leToUtf8`, `fmtUtf16le` (all renamed to have capitalized `Le`)
+ `utf8ToUtf16LeWithNull` (renamed to `utf8ToUtf16LeAllocZ`)
- `std.zig.CrossTarget` (moved to `std.Target.Query`)
Deprecated `lib/std/std.zig` decls were deleted instead of made a `@compileError` because the `refAllDecls` in the test block would trigger the `@compileError`. The deleted top-level `std` namespaces are:
- `std.rand` (renamed to `std.Random`)
- `std.TailQueue` (renamed to `std.DoublyLinkedList`)
- `std.ChildProcess` (renamed/moved to `std.process.Child`)
This is not exhaustive. Deprecated aliases that I didn't touch:
+ `std.io.*`
+ `std.Build.*`
+ `std.builtin.Mode`
+ `std.zig.c_translation.CIntLiteralRadix`
+ anything in `src/`
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spaces (#20100)
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The majority of these are in comments, some in doc comments which might
affect the generated documentation, and a few in parameter names -
nothing that should be breaking, however.
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