This implements stage1 parser support for anonymous struct literal
syntax (see #685), as well as semantic analysis support for anonymous
struct literals and anonymous list literals (see #208). The semantic
analysis works when there is a type coercion in the result location;
inferring the struct type based on the values in the literal is not
implemented yet. Also remaining to do is zig fmt support for this new
syntax and documentation updates.
This commit also hooks up type coercion (previously called implicit
casting) into the result location mechanism, and additionally hooks up
variable declarations, maintaining the property that:
var a: T = b;
is semantically equivalent to:
var a = @as(T, b);
See #1757
* delete the std/event/net directory
* `std.event.Loop.waitUntilFdReadable` and related functions
no longer have possibility of failure. On Linux, they fall
back to poll() and then fall back to sleep().
* add some missing `noasync` decorations in `std.event.Loop`
* redo the `std.net.Server` API. it's quite nice now, but
shutdown does not work cleanly. There is a race condition with
close() that I am actively working on.
* move `std.io.OutStream` to its own file to match `std.io.InStream`.
I started working on making `write` integrated with evented I/O,
but it got tricky so I backed off and filed #3557. However
I did integrate `std.os.writev` and `std.os.pwritev` with evented I/O.
* add `std.Target.stack_align`
* move networking tests to `lib/std/net/test.zig`
* add `std.net.tcpConnectToHost` and `std.net.tcpConnectToAddress`.
* rename `error.UnknownName` to `error.UnknownHostName` within the
context of DNS resolution.
* add `std.os.readv`, which is integrated with evented I/O.
* `std.os.preadv`, is now integrated with evented I/O.
* `std.os.accept4` now asserts that ENOTSOCK and EOPNOTSUPP never
occur (misuse of API), instead of returning errors.
* `std.os.connect` is now integrated with evented I/O.
`std.os.connect_async` is gone. Just use `std.os.connect`.
* fix false positive dependency loop regarding async function frames
* add more compile notes to help when dependency loops occur
in determining whether a function is async.
* ir: change an assert to ir_assert to make it easier to find
workarounds for when such an assert is triggered. In this case
it was trying to parse an IPv4 address at comptime.
* All the data types from `@import("builtin")` are moved to
`@import("std").builtin`. The target-related types are moved
to `std.Target`. This allows the data types to have methods, such as
`std.Target.current.isDarwin()`.
* `std.os.windows.subsystem` is moved to
`std.Target.current.subsystem`.
* Remove the concept of the panic package from the compiler
implementation. Instead, `std.builtin.panic` is always the panic
function. It checks for `@hasDecl(@import("root"), "panic")`,
or else provides a default implementation.
This is an important step for multibuilds (#3028). Without this change,
the types inside the builtin namespace look like different types, when
trying to merge builds with different target settings. With this change,
Zig can figure out that, e.g., `std.builtin.Os` (the enum type) from one
compilation and `std.builtin.Os` from another compilation are the same
type, even if the target OS value differs.
This brings the std lib tests down from 3.51 GiB memory usage
to 3.41 GiB, by making two fields that were 64 bits 32 bits.
This is a small thing; the bigger wins will come from the strategy
outlined in the previous commit.
`ir_resolve_str()` bug returns array expression even when when sliced
to a lesser length. Fix is to return array if slice.len == array.len,
otherwise return slice.
Bug report use-case is based on one builtin function. However, at least
the following builtins were exposed to the bug:
`@byteOffsetOf`
`@cDefine`
`@cImport`
`@cInclude`
`@cUndef`
`@compileError`
`@embedFile`
`@export`
`@fieldParentPtr`
`@hasDecl`
`@hasField`
`@import`
`@unionInit`
closes#3384
- during diagnostics the string representation for root was empty
and now is `(root)`
- retrofitted all other namespace-qualified type naming to elide
prefixing with root
closes#2032
- decls brought in via `usingnamespace` were not always found
because lookup was performed directly against decl_table and
use_decls was never consulted
- fix to use find_container_decl() path instead
- closes#3367
