std.Io: remove BufferedWriter

tools/docgen.zig

@@ -70,19 +70,19 @@ pub fn main() !void {
 
     var out_file = try fs.cwd().createFile(output_path, .{});
     defer out_file.close();
+    var out_file_buffer: [4096]u8 = undefined;
+    var out_file_writer = out_file.writer(&out_file_buffer);
 
     var code_dir = try fs.cwd().openDir(code_dir_path, .{});
     defer code_dir.close();
 
     const input_file_bytes = try in_file.deprecatedReader().readAllAlloc(arena, max_doc_file_size);
 
-    var buffered_writer = io.bufferedWriter(out_file.deprecatedWriter());
-
     var tokenizer = Tokenizer.init(input_path, input_file_bytes);
     var toc = try genToc(arena, &tokenizer);
 
-    try genHtml(arena, &tokenizer, &toc, code_dir, buffered_writer.writer());
-    try buffered_writer.flush();
+    try genHtml(arena, &tokenizer, &toc, code_dir, &out_file_writer.interface);
+    try out_file_writer.end();
 }
 
 const Token = struct {

tools/doctest.zig

@@ -84,9 +84,10 @@ pub fn main() !void {
 
     var out_file = try fs.cwd().createFile(output_path, .{});
     defer out_file.close();
+    var out_file_buffer: [4096]u8 = undefined;
+    var out_file_writer = out_file.writer(&out_file_buffer);
 
-    var bw = std.io.bufferedWriter(out_file.deprecatedWriter());
-    const out = bw.writer();
+    const out = &out_file_writer.interface;
 
     try printSourceBlock(arena, out, source, fs.path.basename(input_path));
     try printOutput(
@@ -102,7 +103,7 @@ pub fn main() !void {
             null,
     );
 
-    try bw.flush();
+    try out_file_writer.end();
 }
 
 fn printOutput(

tools/migrate_langref.zig

@@ -23,19 +23,19 @@ pub fn main() !void {
 
     var out_file = try fs.cwd().createFile(output_file, .{});
     defer out_file.close();
+    var out_file_buffer: [4096]u8 = undefined;
+    var out_file_writer = out_file.writer(&out_file_buffer);
 
     var out_dir = try fs.cwd().openDir(fs.path.dirname(output_file).?, .{});
     defer out_dir.close();
 
     const input_file_bytes = try in_file.deprecatedReader().readAllAlloc(arena, std.math.maxInt(u32));
 
-    var buffered_writer = io.bufferedWriter(out_file.deprecatedWriter());
-
     var tokenizer = Tokenizer.init(input_file, input_file_bytes);
 
-    try walk(arena, &tokenizer, out_dir, buffered_writer.writer());
+    try walk(arena, &tokenizer, out_dir, &out_file_writer.interface);
 
-    try buffered_writer.flush();
+    try out_file_writer.end();
 }
 
 const Token = struct {

tools/update_cpu_features.zig

@@ -1906,8 +1906,9 @@ fn processOneTarget(job: Job) void {
     var zig_code_file = try target_dir.createFile(zig_code_basename, .{});
     defer zig_code_file.close();
 
-    var bw = std.io.bufferedWriter(zig_code_file.deprecatedWriter());
-    const w = bw.writer();
+    var zig_code_file_buffer: [4096]u8 = undefined;
+    var zig_code_file_writer = zig_code_file.writer(&zig_code_file_buffer);
+    const w = &zig_code_file_writer.interface;
 
     try w.writeAll(
         \\//! This file is auto-generated by tools/update_cpu_features.zig.
@@ -2076,7 +2077,7 @@ fn processOneTarget(job: Job) void {
         \\};
         \\
     );
-    try bw.flush();
+    try w.flush();
 
     render_progress.end();
 }

tools/update_crc_catalog.zig

@@ -29,10 +29,9 @@ pub fn main() anyerror!void {
 
     var zig_code_file = try hash_target_dir.createFile("crc.zig", .{});
     defer zig_code_file.close();
-
-    var cbw = std.io.bufferedWriter(zig_code_file.deprecatedWriter());
-    defer cbw.flush() catch unreachable;
-    const code_writer = cbw.writer();
+    var zig_code_file_buffer: [4096]u8 = undefined;
+    var zig_code_file_writer = zig_code_file.writer(&zig_code_file_buffer);
+    const code_writer = &zig_code_file_writer.interface;
 
     try code_writer.writeAll(
         \\//! This file is auto-generated by tools/update_crc_catalog.zig.
@@ -54,10 +53,9 @@ pub fn main() anyerror!void {
 
     var zig_test_file = try crc_target_dir.createFile("test.zig", .{});
     defer zig_test_file.close();
-
-    var tbw = std.io.bufferedWriter(zig_test_file.deprecatedWriter());
-    defer tbw.flush() catch unreachable;
-    const test_writer = tbw.writer();
+    var zig_test_file_buffer: [4096]u8 = undefined;
+    var zig_test_file_writer = zig_test_file.writer(&zig_test_file_buffer);
+    const test_writer = &zig_test_file_writer.interface;
 
     try test_writer.writeAll(
         \\//! This file is auto-generated by tools/update_crc_catalog.zig.
@@ -187,6 +185,9 @@ pub fn main() anyerror!void {
             \\
         , .{ name, camelcase, width, check }));
     }
+
+    try code_writer.flush();
+    try test_writer.flush();
 }
 
 fn printUsageAndExit(arg0: []const u8) noreturn {