zig

commit 4fcb479de95775d056f378fdf8a0b9570bc315b7 (tree)
parent 6038192fadbd785894368d483e98b9713b746135
Author: Andrew Kelley <andrew@ziglang.org>
Date:   Tue, 22 Jul 2025 18:42:54 -0700

don't forget to advance in the deprecated adapter

Diffstat:
M
lib/std/Io.zig
 | 
4
+++-
M
lib/std/Io/DeprecatedReader.zig
 | 
4
+++-

2 files changed, 6 insertions(+), 2 deletions(-)
diff --git a/lib/std/Io.zig b/lib/std/Io.zig
@@ -334,10 +334,12 @@ pub fn GenericReader(
             fn stream(r: *Reader, w: *Writer, limit: Limit) Reader.StreamError!usize {
                 const a: *@This() = @alignCast(@fieldParentPtr("new_interface", r));
                 const buf = limit.slice(try w.writableSliceGreedy(1));
-                return a.derp_reader.read(buf) catch |err| {
+                const n = a.derp_reader.read(buf) catch |err| {
                     a.err = err;
                     return error.ReadFailed;
                 };
+                w.advance(n);
+                return n;
             }
         };
     };
diff --git a/lib/std/Io/DeprecatedReader.zig b/lib/std/Io/DeprecatedReader.zig
@@ -393,10 +393,12 @@ pub const Adapter = struct {
     fn stream(r: *std.io.Reader, w: *std.io.Writer, limit: std.io.Limit) std.io.Reader.StreamError!usize {
         const a: *@This() = @alignCast(@fieldParentPtr("new_interface", r));
         const buf = limit.slice(try w.writableSliceGreedy(1));
-        return a.derp_reader.read(buf) catch |err| {
+        const n = a.derp_reader.read(buf) catch |err| {
             a.err = err;
             return error.ReadFailed;
         };
+        w.advance(n);
+        return n;
     }
 };