From 5ed385991441fbf60d59f67fc374e00adfc4a433 Mon Sep 17 00:00:00 2001
From: Meghan Denny <hello@nektro.net>
Date: Wed, 18 Feb 2026 16:35:01 -0800
Subject: [PATCH] use writeNTimes

---
 json.zig | 12 ++++++------
 test.zig |  5 +++++
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/json.zig b/json.zig
index d5f5c1f2527d36dbaeaf849e47dc1863895bdbef..05319cbac3b54b3c24ef73746bff450b3fafc409 100644
--- a/json.zig
+++ b/json.zig
@@ -432,9 +432,9 @@ pub const Document = struct {
         return std.fmt.format(writer, "{}", .{this.root});
     }
 
-    pub fn stringify(this: *const Document, writer: anytype, space: Space, indent: u8) @TypeOf(writer).Error!void {
+    pub fn stringify(this: *const Document, writer: anytype, space: Space, indent: u8) Instance(@TypeOf(writer)).WriteError!void {
         const fill = space.fill();
-        for (0..indent) |_| try writer.writeAll(fill);
+        try writer.writeNTimes(fill, indent);
         return @errorCast(this.root.stringify(writer, space, indent));
     }
 };
@@ -582,11 +582,11 @@ pub const ArrayIndex = enum(u32) {
         for (items, 0..) |item, i| {
             if (i > 0) try writer.writeAll(",");
             if (fill.len > 0) try writer.writeAll("\n");
-            for (0..indent + 1) |_| try writer.writeAll(fill);
+            try writer.writeNTimes(fill, indent + 1);
             try item.stringify(writer, space, indent + 1);
         }
         if (fill.len > 0) try writer.writeAll("\n");
-        for (0..indent) |_| try writer.writeAll(fill);
+        try writer.writeNTimes(fill, indent);
         try writer.writeAll("]");
     }
 
@@ -623,13 +623,13 @@ pub const ObjectIndex = enum(u32) {
         for (keys, values, 0..) |k, v, i| {
             if (i > 0) try writer.writeAll(",");
             if (fill.len > 0) try writer.writeAll("\n");
-            for (0..indent + 1) |_| try writer.writeAll(fill);
+            try writer.writeNTimes(fill, indent + 1);
             try k.stringify(writer);
             try writer.writeAll(":");
             try v.stringify(writer, space, indent + 1);
         }
         if (fill.len > 0) try writer.writeAll("\n");
-        for (0..indent) |_| try writer.writeAll(fill);
+        try writer.writeNTimes(fill, indent);
         try writer.writeAll("}");
     }
 
diff --git a/test.zig b/test.zig
index 72ae61ab7da11fcf1957b3339ac86c65acd4a758..8cc0b3bd20ef31db3f5d884d9efbacf1d56af819 100644
--- a/test.zig
+++ b/test.zig
@@ -580,6 +580,11 @@ fn expectCanonical(buffer: []const u8) !void {
     doc.acquire();
     defer doc.release();
     try std.testing.expectFmt(buffer, "{}", .{doc});
+
+    var buf: [4096]u8 = undefined;
+    var out: nio.FixedBufferStream([]u8) = .init(&buf);
+    try doc.stringify(&out, .{ .count = 0 }, 0);
+    try std.testing.expectEqualStrings(buffer, out.buffer[0..out.pos]);
 }
 
 // zig fmt: off
-- 
2.54.0