Update to Zig version 0.15.0-dev.1145+3ae0ba096

Some large changes in this one. Even more on the way with Writergate and
the Io revolution.

Author: sin-ack

.github/workflows/all-debug-compile-only.yml

@@ -19,7 +19,7 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v1
         with:
-          version: 0.15.0-dev.864+75d0ec9c0
+          version: 0.15.0-dev.1145+3ae0ba096
 
       - name: Enable all debug flags
         run: scripts/enable-all-debug-flags.sh

.github/workflows/run-tests.yml

@@ -18,7 +18,7 @@ jobs:
       - name: Setup Zig
         uses: mlugg/setup-zig@v1
         with:
-          version: 0.15.0-dev.864+75d0ec9c0
+          version: 0.15.0-dev.1145+3ae0ba096
 
       - name: Run tests
         run: zig build test --summary all

README.md

@@ -39,7 +39,7 @@ You need the Zig compiler, preferably one built with the known-good version
 commit. You can find the source code, instructions for building, and more on the
 [Zig repository](https://github.com/ziglang/zig).
 
-Latest Zig version known to work is [0.15.0-dev.864+75d0ec9c0](https://github.com/ziglang/zig/commit/75d0ec9c0).
+Latest Zig version known to work is [0.15.0-dev.1145+3ae0ba096](https://github.com/ziglang/zig/commit/3ae0ba096).
 Earlier and later versions may work but there are no guarantees.
 
 ## Building zigSelf

build.zig

@@ -37,17 +37,18 @@ pub fn build(b: *std.Build) void {
     // Steps
     const exe = b.addExecutable(.{
         .name = "self",
-        .root_source_file = b.path("src/main.zig"),
-        .target = target,
-        .optimize = optimize,
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("src/main.zig"),
+            .optimize = optimize,
+            .target = target,
+        }),
+        // XXX: Native backend currently crashing due to Zig bug.
+        // https://github.com/ziglang/zig/issues/24364
+        .use_llvm = true,
     });
     exe.root_module.addImport("zigself", zigself);
     exe.root_module.addImport("zig-args", zig_args);
     exe.root_module.addImport("tracy", tracy);
-    // NOTE: Currently forced to use LLVM backend because the native backend
-    //       segfaults (and we can't upgrade yet due to our usingnamespace
-    //       use).
-    exe.use_llvm = true;
 
     b.installArtifact(exe);
 
@@ -62,9 +63,11 @@ pub fn build(b: *std.Build) void {
 
     var test_harness_exe = b.addExecutable(.{
         .name = "self-test",
-        .root_source_file = b.path("tests/harness.zig"),
-        .target = target,
-        .optimize = optimize,
+        .root_module = b.createModule(.{
+            .root_source_file = b.path("tests/harness.zig"),
+            .target = target,
+            .optimize = optimize,
+        }),
     });
     test_harness_exe.root_module.addImport("zigself", zigself);
 

build.zig.zon

@@ -11,8 +11,8 @@
     },
     .dependencies = .{
         .@"zig-args" = .{
-            .url = "https://github.com/ikskuh/zig-args/archive/9425b94c103a031777fdd272c555ce93a7dea581.tar.gz",
-            .hash = "args-0.0.0-CiLiqv_NAAC97fGpk9hS2K681jkiqPsWP6w3ucb_ctGH",
+            .url = "https://github.com/ikskuh/zig-args/archive/4c305bcb45fd3c4b74b7bf7f907cf3fc12f415a2.tar.gz",
+            .hash = "args-0.0.0-CiLiquDRAADuU_ueSmGquhHAuhDxxlfBokGj01ZdVYHt",
         },
         .tracy = .{
             .url = "https://github.com/wolfpld/tracy/archive/refs/tags/v0.11.1.tar.gz",

src/language/ASTPrinter.zig

@@ -54,7 +54,9 @@ fn dedent(self: *ASTPrinter) void {
 }
 
 fn print(self: *ASTPrinter, comptime fmt: []const u8, args: anytype) void {
-    const writer = std.io.getStdErr().writer();
+    var writer_buffer: [4096]u8 = undefined;
+    var file_writer = std.fs.File.stderr().writer(&writer_buffer);
+    const writer = &file_writer.interface;
     writer.writeAll(DARKGRAY) catch return;
 
     var last_indent: usize = 0;
@@ -73,7 +75,7 @@ fn print(self: *ASTPrinter, comptime fmt: []const u8, args: anytype) void {
             writer.writeAll("╴") catch return;
         } else {
             writer.writeAll(if (!branch.concluded) "│" else " ") catch return;
-            writer.writeByteNTimes(' ', self.indent_width - 1) catch return;
+            writer.splatByteAll(' ', self.indent_width - 1) catch return;
         }
 
         last_indent = branch.indent;

src/language/Location.zig

@@ -14,15 +14,8 @@ line_start: usize,
 /// Points to the newline.
 line_end: usize,
 
-pub fn format(
-    location: Location,
-    comptime fmt: []const u8,
-    options: std.fmt.FormatOptions,
-    writer: anytype,
-) !void {
-    _ = fmt;
-
-    try std.fmt.formatInt(location.line, 10, .lower, options, writer);
+pub fn format(self: Location, writer: *std.io.Writer) !void {
+    try writer.printInt(self.line, 10, .lower, .{});
     try writer.writeByte(':');
-    try std.fmt.formatInt(location.column, 10, .lower, options, writer);
+    try writer.printInt(self.column, 10, .lower, .{});
 }

src/language/LocationRange.zig

@@ -1,4 +1,4 @@
-// Copyright (c) 2021-2023, sin-ack <sin-ack@protonmail.com>
+// Copyright (c) 2021-2025, sin-ack <sin-ack@protonmail.com>
 //
 // SPDX-License-Identifier: GPL-3.0-only
 
@@ -13,18 +13,13 @@ const LocationRange = @This();
 start: Location,
 end: Location,
 
-pub fn format(
-    range: LocationRange,
-    comptime fmt: []const u8,
-    options: std.fmt.FormatOptions,
-    writer: anytype,
-) !void {
-    try range.start.format(fmt, options, writer);
+pub fn format(range: LocationRange, writer: *std.io.Writer) !void {
+    try range.start.format(writer);
     try writer.writeByte('-');
 
     if (range.start.line != range.end.line) {
-        try range.end.format(fmt, options, writer);
+        try range.end.format(writer);
     } else {
-        try std.fmt.formatInt(range.end.column, 10, .lower, options, writer);
+        try writer.printInt(range.end.column, 10, .lower, .{});
     }
 }

src/language/Script.zig

@@ -97,13 +97,13 @@ pub fn diagnostics(self: Script) Diagnostics {
     return self.parser.diagnostics;
 }
 
-pub fn reportDiagnostics(self: Script, writer: anytype) !void {
+pub fn reportDiagnostics(self: Script, writer: *std.io.Writer) !void {
     for (self.diagnostics().diagnostics.items) |diagnostic| {
         const line = self.parser.buffer[diagnostic.location.line_start..diagnostic.location.line_end];
 
-        try writer.print("{s}:{}: {s}: {s}\n", .{ self.file_path, diagnostic.location, @tagName(diagnostic.level), diagnostic.message });
+        try writer.print("{s}:{f}: {s}: {s}\n", .{ self.file_path, diagnostic.location, @tagName(diagnostic.level), diagnostic.message });
         try writer.print("{s}\n", .{line});
-        try writer.writeByteNTimes(' ', diagnostic.location.column - 1);
+        try writer.splatByteAll(' ', diagnostic.location.column - 1);
         try writer.writeAll("^\n");
     }
 }

src/main.zig

@@ -35,7 +35,7 @@ const usage_text =
 ;
 
 fn printUsage() !void {
-    const stderr = std.io.getStdErr();
+    const stderr = std.fs.File.stderr();
     _ = try stderr.write(usage_text);
 }
 
@@ -60,7 +60,7 @@ pub fn main() !u8 {
     }
 
     if (arguments.positionals.len != 1) {
-        const stderr = std.io.getStdErr();
+        const stderr = std.fs.File.stderr();
         _ = try stderr.write("Error: Must provide exactly one argument\n");
         try printUsage();
         return 1;
@@ -73,7 +73,10 @@ pub fn main() !u8 {
     defer entrypoint_script.unref();
 
     const did_parse_without_errors = try entrypoint_script.value.parseScript();
-    try entrypoint_script.value.reportDiagnostics(std.io.getStdErr().writer());
+
+    var writer_buffer: [4096]u8 = undefined;
+    var writer = std.fs.File.stderr().writer(&writer_buffer);
+    try entrypoint_script.value.reportDiagnostics(&writer.interface);
 
     if (arguments.options.@"dump-ast") {
         var printer = ASTPrinter.init(2, allocator);