| ... | @@ -54,3 +54,43 @@ pub fn fromStd(writer_ptr: *std.Io.Writer) AnyWritable { | ... | @@ -54,3 +54,43 @@ pub fn fromStd(writer_ptr: *std.Io.Writer) AnyWritable { |
| 54 | .state = @ptrCast(@constCast(writer_ptr)), | 54 | .state = @ptrCast(@constCast(writer_ptr)), |
| 55 | }; | 55 | }; |
| 56 | } | 56 | } |
| | 57 | |
| | 58 | pub fn toStd(r: AnyWritable, buf: []u8) StdWriter { |
| | 59 | const S = struct { |
| | 60 | fn drain(sw: *std.Io.Writer, data: []const []const u8, splat: usize) error{WriteFailed}!usize { |
| | 61 | const w: *StdWriter = @alignCast(@fieldParentPtr("sw", sw)); |
| | 62 | while (true) { |
| | 63 | const rem = w.sw.buffered(); |
| | 64 | const n = w.aw.write(rem) catch return error.WriteFailed; |
| | 65 | const l = w.sw.consume(n); |
| | 66 | if (l == 0) break; |
| | 67 | } |
| | 68 | var n: usize = 0; |
| | 69 | const slice = data[0 .. data.len - 1]; |
| | 70 | w.aw.writevAll(slice) catch return error.WriteFailed; |
| | 71 | for (slice) |x| n += x.len; |
| | 72 | const pattern = data[slice.len]; |
| | 73 | w.aw.writeNTimes(pattern, splat) catch return error.WriteFailed; |
| | 74 | n += pattern.len * splat; |
| | 75 | return n; |
| | 76 | } |
| | 77 | fn flush(sw: *std.Io.Writer) error{WriteFailed}!void { |
| | 78 | const w: *StdWriter = @alignCast(@fieldParentPtr("sw", sw)); |
| | 79 | return w.aw.writeAll(w.sw.buffered()) catch return error.WriteFailed; |
| | 80 | } |
| | 81 | }; |
| | 82 | return .{ |
| | 83 | .aw = r, |
| | 84 | .sw = .{ |
| | 85 | .vtable = &.{ |
| | 86 | .drain = S.drain, |
| | 87 | .flush = S.flush, |
| | 88 | }, |
| | 89 | .buffer = buf, |
| | 90 | }, |
| | 91 | }; |
| | 92 | } |
| | 93 | const StdWriter = struct { |
| | 94 | aw: AnyWritable, |
| | 95 | sw: std.Io.Writer, |
| | 96 | }; |
Meghan Denny <hello@nektro.net> 2026-06-25 15:56:53 -07:00
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