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std.fmt: breaking API changes

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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
This commit is contained in:
Andrew Kelley
2025-06-27 20:05:22 -07:00
parent 0b3f0124dc
commit 0e37ff0d59
161 changed files with 4385 additions and 5847 deletions
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14
lib/std/process.zig
View File

@@ -1553,7 +1553,7 @@ pub fn posixGetUserInfo(name: []const u8) !UserInfo {
const file = try std.fs.openFileAbsolute("/etc/passwd", .{});
defer file.close();
const reader = file.reader();
const reader = file.deprecatedReader();
const State = enum {
Start,
@@ -1895,7 +1895,7 @@ pub fn createEnvironFromMap(
var i: usize = 0;
if (zig_progress_action == .add) {
envp_buf[i] = try std.fmt.allocPrintZ(arena, "ZIG_PROGRESS={d}", .{options.zig_progress_fd.?});
envp_buf[i] = try std.fmt.allocPrintSentinel(arena, "ZIG_PROGRESS={d}", .{options.zig_progress_fd.?}, 0);
i += 1;
}
@@ -1906,16 +1906,16 @@ pub fn createEnvironFromMap(
.add => unreachable,
.delete => continue,
.edit => {
envp_buf[i] = try std.fmt.allocPrintZ(arena, "{s}={d}", .{
envp_buf[i] = try std.fmt.allocPrintSentinel(arena, "{s}={d}", .{
pair.key_ptr.*, options.zig_progress_fd.?,
});
}, 0);
i += 1;
continue;
},
.nothing => {},
};
envp_buf[i] = try std.fmt.allocPrintZ(arena, "{s}={s}", .{ pair.key_ptr.*, pair.value_ptr.* });
envp_buf[i] = try std.fmt.allocPrintSentinel(arena, "{s}={s}", .{ pair.key_ptr.*, pair.value_ptr.* }, 0);
i += 1;
}
}
@@ -1965,7 +1965,7 @@ pub fn createEnvironFromExisting(
var existing_index: usize = 0;
if (zig_progress_action == .add) {
envp_buf[i] = try std.fmt.allocPrintZ(arena, "ZIG_PROGRESS={d}", .{options.zig_progress_fd.?});
envp_buf[i] = try std.fmt.allocPrintSentinel(arena, "ZIG_PROGRESS={d}", .{options.zig_progress_fd.?}, 0);
i += 1;
}
@@ -1974,7 +1974,7 @@ pub fn createEnvironFromExisting(
.add => unreachable,
.delete => continue,
.edit => {
envp_buf[i] = try std.fmt.allocPrintZ(arena, "ZIG_PROGRESS={d}", .{options.zig_progress_fd.?});
envp_buf[i] = try std.fmt.allocPrintSentinel(arena, "ZIG_PROGRESS={d}", .{options.zig_progress_fd.?}, 0);
i += 1;
continue;
},