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Merge remote-tracking branch 'origin/master' into stage2-whole-file-astgen

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Conflicts:
	lib/std/crypto/25519/field.zig
	lib/std/crypto/poly1305.zig

I had resolved those by removing `comptime` but master branch decided to
make the parameters `comptime`.

This also pulls in the updated default `zig build` install directory.
This commit is contained in:
Andrew Kelley 2021-04-30 23:13:17 -07:00
commit dc28f5c3ec
10 changed files with 66 additions and 13 deletions
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1
.gitignore vendored
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@ -10,6 +10,7 @@
# -andrewrk
zig-cache/
zig-out/
/release/
/debug/
/build/

2
BRANCH_TODO
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@ -1,5 +1,5 @@
* decouple AstGen from Module, Compilation
* modify dbg_stmt ZIR instructions to have line/column rather than node indexes
* decouple AstGen from Module, Compilation
* AstGen threadlocal
* extern "foo" for vars and for functions
* namespace decls table can't reference ZIR memory because it can get modified on updates

33
doc/langref.html.in
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@ -2861,6 +2861,37 @@ fn dump(args: anytype) void {
expect(args.b);
expect(args.s[0] == 'h');
expect(args.s[1] == 'i');
}
{#code_end#}
<p>
Anonymous structs can be created without specifying field names, and are referred to as "tuples".
</p>
<p>
The fields are implicitly named using numbers starting from 0. Because their names are integers,
the {#syntax#}@"0"{#endsyntax#} syntax must be used to access them. Names inside {#syntax#}@""{#endsyntax#} are always recognised as identifiers.
</p>
<p>
Like arrays, tuples have a .len field, can be indexed and work with the ++ and ** operators. They can also be iterated over with {#link|inline for#}.
</p>
{#code_begin|test|tuple#}
const std = @import("std");
const expect = std.testing.expect;
test "tuple" {
const values = .{
@as(u32, 1234),
@as(f64, 12.34),
true,
"hi",
} ++ .{false} ** 2;
expect(values[0] == 1234);
expect(values[4] == false);
inline for (values) |v, i| {
if (i != 2) continue;
expect(v);
}
expect(values.len == 6);
expect(values.@"3"[0] == 'h');
}
{#code_end#}
{#header_close#}
@ -9997,7 +10028,7 @@ pub fn build(b: *Builder) void {
{#code_end#}
<p class="file">terminal</p>
<pre><code class="shell">$ zig build
$ ./zig-cache/bin/test
$ ./zig-out/bin/test
all your base are belong to us</code></pre>
{#see_also|Targets|Zig Build System#}
{#header_close#}

3
lib/std/build.zig
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@ -195,7 +195,8 @@ pub const Builder = struct {
self.install_prefix = install_prefix orelse "/usr";
self.install_path = fs.path.join(self.allocator, &[_][]const u8{ dest_dir, self.install_prefix }) catch unreachable;
} else {
self.install_prefix = install_prefix orelse self.cache_root;
self.install_prefix = install_prefix orelse
(fs.path.join(self.allocator, &[_][]const u8{ self.build_root, "zig-out" }) catch unreachable);
self.install_path = self.install_prefix;
}
self.lib_dir = fs.path.join(self.allocator, &[_][]const u8{ self.install_path, "lib" }) catch unreachable;

18
lib/std/compress/deflate.zig
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@ -384,6 +384,8 @@ pub fn InflateStream(comptime ReaderType: type) type {
const last_length = lengths[i - 1];
const repeat = 3 + (try self.readBits(2));
const last_index = i + repeat;
if (last_index > lengths.len)
return error.InvalidLength;
while (i < last_index) : (i += 1) {
lengths[i] = last_length;
}
@ -655,3 +657,19 @@ pub fn InflateStream(comptime ReaderType: type) type {
pub fn inflateStream(reader: anytype, window_slice: []u8) InflateStream(@TypeOf(reader)) {
return InflateStream(@TypeOf(reader)).init(reader, window_slice);
}
test "lengths overflow" {
// malformed final dynamic block, tries to write 321 code lengths (MAXCODES is 316)
// f dy hlit hdist hclen 16 17 18 0 (18) x138 (18) x138 (18) x39 (16) x6
// 1 10 11101 11101 0000 010 010 010 010 (11) 1111111 (11) 1111111 (11) 0011100 (01) 11
const stream = [_]u8{
0b11101101, 0b00011101, 0b00100100, 0b11101001, 0b11111111, 0b11111111, 0b00111001, 0b00001110
};
const reader = std.io.fixedBufferStream(&stream).reader();
var window: [0x8000]u8 = undefined;
var inflate = inflateStream(reader, &window);
var buf: [1]u8 = undefined;
std.testing.expectError(error.InvalidLength, inflate.read(&buf));
}

2
lib/std/crypto/25519/field.zig
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@ -292,7 +292,7 @@ pub const Fe = struct {
return _carry128(&r);
}
fn _sq(a: Fe, double: bool) callconv(.Inline) Fe {
fn _sq(a: Fe, comptime double: bool) callconv(.Inline) Fe {
var ax: [5]u128 = undefined;
var r: [5]u128 = undefined;
comptime var i = 0;

2
lib/std/crypto/poly1305.zig
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@ -39,7 +39,7 @@ pub const Poly1305 = struct {
};
}
fn blocks(st: *Poly1305, m: []const u8, last: bool) void {
fn blocks(st: *Poly1305, m: []const u8, comptime last: bool) void {
const hibit: u64 = if (last) 0 else 1 << 40;
const r0 = st.r[0];
const r1 = st.r[1];

10
lib/std/os.zig
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@ -1049,7 +1049,7 @@ pub const OpenError = error{
} || UnexpectedError;
/// Open and possibly create a file. Keeps trying if it gets interrupted.
/// See also `openC`.
/// See also `openZ`.
pub fn open(file_path: []const u8, flags: u32, perm: mode_t) OpenError!fd_t {
if (std.Target.current.os.tag == .windows) {
const file_path_w = try windows.sliceToPrefixedFileW(file_path);
@ -1147,7 +1147,7 @@ pub fn openW(file_path_w: []const u16, flags: u32, perm: mode_t) OpenError!fd_t
/// Open and possibly create a file. Keeps trying if it gets interrupted.
/// `file_path` is relative to the open directory handle `dir_fd`.
/// See also `openatC`.
/// See also `openatZ`.
pub fn openat(dir_fd: fd_t, file_path: []const u8, flags: u32, mode: mode_t) OpenError!fd_t {
if (builtin.os.tag == .wasi) {
@compileError("use openatWasi instead");
@ -1754,7 +1754,7 @@ pub const UnlinkError = error{
} || UnexpectedError;
/// Delete a name and possibly the file it refers to.
/// See also `unlinkC`.
/// See also `unlinkZ`.
pub fn unlink(file_path: []const u8) UnlinkError!void {
if (builtin.os.tag == .wasi) {
@compileError("unlink is not supported in WASI; use unlinkat instead");
@ -3419,7 +3419,7 @@ pub fn fstat(fd: fd_t) FStatError!Stat {
}
}
pub const FStatAtError = FStatError || error{ NameTooLong, FileNotFound };
pub const FStatAtError = FStatError || error{ NameTooLong, FileNotFound, SymLinkLoop };
/// Similar to `fstat`, but returns stat of a resource pointed to by `pathname`
/// which is relative to `dirfd` handle.
@ -3466,8 +3466,10 @@ pub fn fstatatZ(dirfd: fd_t, pathname: [*:0]const u8, flags: u32) FStatAtError!S
EBADF => unreachable, // Always a race condition.
ENOMEM => return error.SystemResources,
EACCES => return error.AccessDenied,
EPERM => return error.AccessDenied,
EFAULT => unreachable,
ENAMETOOLONG => return error.NameTooLong,
ELOOP => return error.SymLinkLoop,
ENOENT => return error.FileNotFound,
ENOTDIR => return error.FileNotFound,
else => |err| return unexpectedErrno(err),

6
lib/std/special/build_runner.zig
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@ -82,9 +82,9 @@ pub fn main() !void {
builder.verbose = true;
} else if (mem.eql(u8, arg, "-h") or mem.eql(u8, arg, "--help")) {
return usage(builder, false, stdout_stream);
} else if (mem.eql(u8, arg, "--prefix")) {
} else if (mem.eql(u8, arg, "-p") or mem.eql(u8, arg, "--prefix")) {
install_prefix = nextArg(args, &arg_idx) orelse {
warn("Expected argument after --prefix\n\n", .{});
warn("Expected argument after {s}\n\n", .{arg});
return usageAndErr(builder, false, stderr_stream);
};
} else if (mem.eql(u8, arg, "--search-prefix")) {
@ -188,7 +188,7 @@ fn usage(builder: *Builder, already_ran_build: bool, out_stream: anytype) !void
\\General Options:
\\ -h, --help Print this help and exit
\\ --verbose Print commands before executing them
\\ --prefix [path] Override default install prefix
\\ -p, --prefix [path] Override default install prefix
\\ --search-prefix [path] Add a path to look for binaries, libraries, headers
\\ --color [auto|off|on] Enable or disable colored error messages
\\

2
src/main.zig
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@ -687,7 +687,7 @@ fn buildOutputType(
extra_cflags.shrinkRetainingCapacity(0);
while (true) {
i += 1;
if (i + 1 >= args.len) fatal("expected -- after -cflags", .{});
if (i >= args.len) fatal("expected -- after -cflags", .{});
if (mem.eql(u8, args[i], "--")) break;
try extra_cflags.append(args[i]);
}