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std: add a Deque data structure
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and delete deprecated alias std.io
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This is my penance for baiting andrew into deleting the existing generic
queue data structures with my talk of "too many ring buffers".
The new Reader and Writer interfaces are excellent ring buffers for many
use cases, but a generic queue container type is now missing.
This new double-ended queue, known more succinctly as a deque, is
implemented from scratch based on the API design lessons learned from
ArrayList over the years.
The API is not yet as featureful as ArrayList, but the core
functionality is in place and I will be using this in my personal
projects shortly. I think it makes sense to add further functions as
needed based on real-world use-cases.
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I never liked how this data structure took its API as a parameter.
This use case is now served by std.Io buffering.
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Progress towards #19231
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This use case is handled by ArrayListUnmanaged via the "...Bounded"
method variants, and it's more optimal to share machine code, versus
generating multiple versions of each function for differing array
lengths.
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This commit is non-breaking.
std.io is deprecated in favor of std.Io, in preparation for that
namespace becoming an interface.
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This code applies to ~any POSIX OS where we don't link libc. For example, it'll
be useful for FreeBSD and NetBSD.
As part of this, move std.os.linux.pie to std.pie since there's really nothing
Linux-specific about what that file is doing.
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by making it always intrusive, we make it more broadly useful API, and
avoid binary bloat.
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by making it always intrusive, we make it a more broadly useful API, and
avoid binary bloat.
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* fix merge conflicts
* rename the declarations
* reword documentation
* extract FixedBufferAllocator to separate file
* take advantage of locals
* remove the assertion about max alignment in Allocator API, leaving it
Allocator implementation defined
* fix non-inline function call in start logic
The GeneralPurposeAllocator implementation is totally broken because it
uses global state but I didn't address that in this commit.
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heap.zig: define new default page sizes
heap.zig: add min/max_page_size and their options
lib/std/c: add miscellaneous declarations
heap.zig: add pageSize() and its options
switch to new page sizes, especially in GPA/stdlib
mem.zig: remove page_size
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This commit allows using ZON (Zig Object Notation) in a few ways.
* `@import` can be used to load ZON at comptime and convert it to a
normal Zig value. In this case, `@import` must have a result type.
* `std.zon.parse` can be used to parse ZON at runtime, akin to the
parsing logic in `std.json`.
* `std.zon.stringify` can be used to convert arbitrary data structures
to ZON at runtime, again akin to `std.json`.
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By default, programs built in debug mode that open a https connection
will append secrets to the file specified in the SSLKEYLOGFILE
environment variable to allow protocol debugging by external programs.
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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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fixes #17408
Helpful reviewers/testers include Joshe Wolfe, Auguste Rame, Andrew
Kelley and Jacob Young.
Co-authored-by: Joel Gustafson <joelg@mit.edu>
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this patch renames ComptimeStringMap to StaticStringMap, makes it
accept only a single type parameter, and return a known struct type
instead of an anonymous struct. initial motivation for these changes
was to reduce the 'very long type names' issue described here
https://github.com/ziglang/zig/pull/19682.
this breaks the previous API. users will now need to write:
`const map = std.StaticStringMap(T).initComptime(kvs_list);`
* move `kvs_list` param from type param to an `initComptime()` param
* new public methods
* `keys()`, `values()` helpers
* `init(allocator)`, `deinit(allocator)` for runtime data
* `getLongestPrefix(str)`, `getLongestPrefixIndex(str)` - i'm not sure
these belong but have left in for now incase they are deemed useful
* performance notes:
* i posted some benchmarking results here:
https://github.com/travisstaloch/comptime-string-map-revised/issues/1
* i noticed a speedup reducing the size of the struct from 48 to 32
bytes and thus use u32s instead of usize for all length fields
* i noticed speedup storing KVs as a struct of arrays
* latest benchmark shows these wall_time improvements for
debug/safe/small/fast builds: -6.6% / -10.2% / -19.1% / -8.9%. full
output in link above.
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closes #5019
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A lot of these "shorthand" doc comments were redundant, low quality
filler content. Better to let the actual modules speak for themselves
with top level doc comments rather than trying to document their
aliases.
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This frees up std.zig.fmt to be used for the implementation of `zig
fmt`.
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* std.c: consolidate some definitions, making them share code. For
example, freebsd, dragonfly, and openbsd can all share the same
`pthread_mutex_t` definition.
* add type safety to std.c.O
- this caught a bug where mode flags were incorrectly passed as the
open flags.
* 3 fewer uses of usingnamespace keyword
* as per convention, remove purposeless field prefixes from struct field
names even if they have those prefixes in the corresponding C code.
* fix incorrect wasi libc Stat definition
* remove C definitions from incorrectly being in std.os.wasi
* make std.os.wasi definitions type safe
* go through wasi native APIs even when linking libc because the libc
APIs are problematic and wasteful
* don't expose WASI definitions in std.posix
* remove std.os.wasi.rights_t.ALL: this is a footgun. should it be all
future rights too? or only all current rights known? both are
the wrong answer.
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std.rand: Move to std.Random
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std: make options a struct instance instead of a namespace
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`fd_t` is not declared on freestanding so returning a `Dir` causes an error.
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Introduce the concept of "target query" and "resolved target". A target
query is what the user specifies, with some things left to default. A
resolved target has the default things discovered and populated.
In the future, std.zig.CrossTarget will be rename to std.Target.Query.
Introduces `std.Build.resolveTargetQuery` to get from one to the other.
The concept of `main_mod_path` is gone, no longer supported. You have to
put the root source file at the module root now.
* remove deprecated API
* update build.zig for the breaking API changes in this branch
* move std.Build.Step.Compile.BuildId to std.zig.BuildId
* add more options to std.Build.ExecutableOptions, std.Build.ObjectOptions,
std.Build.SharedLibraryOptions, std.Build.StaticLibraryOptions, and
std.Build.TestOptions.
* remove `std.Build.constructCMacro`. There is no use for this API.
* deprecate `std.Build.Step.Compile.defineCMacro`. Instead,
`std.Build.Module.addCMacro` is provided.
- remove `std.Build.Step.Compile.defineCMacroRaw`.
* deprecate `std.Build.Step.Compile.linkFrameworkNeeded`
- use `std.Build.Module.linkFramework`
* deprecate `std.Build.Step.Compile.linkFrameworkWeak`
- use `std.Build.Module.linkFramework`
* move more logic into `std.Build.Module`
* allow `target` and `optimize` to be `null` when creating a Module.
Along with other fields, those unspecified options will be inherited
from parent `Module` when inserted into an import table.
* the `target` field of `addExecutable` is now required. pass `b.host`
to get the host target.
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std_options.http_connection_pool_size removed in favor of
```
client.connection_pool.resize(client.allocator, size);
```
std_options.http_disable_tls will remove all https capability from
std.http when true. Any https request will error with
`error.TlsInitializationFailed`.
Solves #17051.
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Followup to 0a868dacdd31b7d5c529a332da718683477a2505 .
Signed-off-by: Eric Joldasov <bratishkaerik@getgoogleoff.me>
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This will allow users to construct e.g. a ComptimeStringMap that uses case-insensitive ASCII comparison.
Note: the previous ComptimeStringMap API is unchanged (i.e. this does not break any existing code).
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This cleans up existing documentation, adds a bit more, and fixes some
typos too.
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This fixes a mistake in PR #16996.
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`TailQueue` was implemented as a doubly-linked list, but named after an
abstract data type. This was inconsistent with `SinglyLinkedList`, which
can be used to implement an abstract data type, but is still named after
the implementation. Renaming `TailQueue` to `DoublyLinkedList` improves
consistency between the two type names, and should help discoverability.
`TailQueue` is now a deprecated alias of `DoublyLinkedList`.
Related to issues #1629 and #8233.
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* autodoc: init guide TOC work
* autodoc: working guides toc navigation
* autodoc: more improvements
* autodoc: ui refinements
* autodoc: new layout and init descriptions for namespaces in std.zig
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This is useful for creating byte buffers of actually-different-things.
Copied the argument order from `Allocator.alignedAlloc`
I noted that `ArrayListAligned` is going out of it's way to not set the
alignment at comptime when it is not specified. However, I was not able
to do that the same way here, and good people on IRC, @ifreund in
particular (thanks!) assured me that
[N]T align(@alignOf(T))
is equivalent to
[N]T
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Options have been moved to a single namespace.
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Previously, this API had pid, to be used on POSIX systems, and handle,
to be used on Windows.
This commit unifies the API, defining an Id type that is either the pid
or the HANDLE depending on the target OS.
This commit also prepares for the future by allowing one to import via
`std.process.Child` which is the fully qualified namespace that I intend
to migrate to in the future.
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