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std.Io: delete CountingWriter

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This commit is contained in:
Andrew Kelley
2025-08-07 22:06:20 -07:00
parent 3fb86841cc
commit 94dd28b7f7
9 changed files with 39 additions and 91 deletions
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16
lib/std/crypto/phc_encoding.zig
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@@ -5,6 +5,7 @@ const fmt = std.fmt;
const io = std.io;
const mem = std.mem;
const meta = std.meta;
const Writer = std.Io.Writer;
const fields_delimiter = "$";
const fields_delimiter_scalar = '$';
@@ -188,19 +189,20 @@ pub fn deserialize(comptime HashResult: type, str: []const u8) Error!HashResult
///
/// `params` can also include any additional parameters.
pub fn serialize(params: anytype, str: []u8) Error![]const u8 {
var buf = io.fixedBufferStream(str);
try serializeTo(params, buf.writer());
return buf.getWritten();
var w: Writer = .fixed(str);
serializeTo(params, &w) catch return error.NoSpaceLeft;
return w.buffered();
}
/// Compute the number of bytes required to serialize `params`
pub fn calcSize(params: anytype) usize {
var buf = io.countingWriter(io.null_writer);
serializeTo(params, buf.writer()) catch unreachable;
return @as(usize, @intCast(buf.bytes_written));
var trash: [128]u8 = undefined;
var d: Writer.Discarding = .init(&trash);
serializeTo(params, &d.writer) catch unreachable;
return @intCast(d.fullCount());
}
fn serializeTo(params: anytype, out: anytype) !void {
fn serializeTo(params: anytype, out: *std.Io.Writer) !void {
const HashResult = @TypeOf(params);
if (@hasField(HashResult, version_param_name)) {