build: support Zig 0.13.0 in the binding generator

Closes #79

README.md

@@ -16,9 +16,9 @@ exe.root_module.addImport("gtk", gobject.module("gtk-4.0"));
 exe.root_module.addImport("adw", gobject.module("adw-1"));
 ```
 
-The generated bindings are tested on Zig 0.13.0 and master, though support for
-the latest master may temporarily regress when breaking changes are made
-upstream. The binding generator itself targets only the latest Zig master.
+The binding generator and generated bindings are tested on Zig 0.13.0 and
+master, though support for the latest master may temporarily regress when
+breaking changes are made upstream.
 
 ## Companion projects
 

build.zig

@@ -275,14 +275,14 @@ pub fn build(b: *std.Build) void {
         "freetype2-2.0",
         "GObject-2.0",
     };
-    const gir_fixes_profiles: std.EnumArray(GirProfile, []const []const u8) = .init(.{
+    const gir_fixes_profiles = std.EnumArray(GirProfile, []const []const u8).init(.{
         .gnome46 = &.{
             "AppStream-1.0",
         },
         .gnome47 = &.{},
     });
     const gir_fixes: []const []const u8 = b.option([]const []const u8, "gir-fixes", "GIR fixes to apply") orelse gir_fixes: {
-        var applicable_fixes: std.ArrayList([]const u8) = .init(b.allocator);
+        var applicable_fixes = std.ArrayList([]const u8).init(b.allocator);
         defer applicable_fixes.deinit();
         for (gir_fixes_common) |fix| {
             applicable_fixes.append(b.fmt("{0s}=gir-fixes/common/{0s}.xslt", .{fix})) catch @panic("OOM");

src/main.zig

@@ -1,5 +1,6 @@
 const std = @import("std");
 const builtin = @import("builtin");
+const compat = @import("compat.zig");
 const gir = @import("gir.zig");
 const translate = @import("translate.zig");
 const log = std.log;
@@ -31,7 +32,7 @@ pub const std_options: std.Options = .{
 
 pub fn logImpl(
     comptime level: log.Level,
-    comptime scope: @Type(.enum_literal),
+    comptime scope: compat.Reify(.enum_literal),
     comptime format: []const u8,
     args: anytype,
 ) void {

src/zig_writer.zig

@@ -1,4 +1,5 @@
 const std = @import("std");
+const compat = @import("compat.zig");
 
 pub fn zigWriter(out: anytype) ZigWriter(@TypeOf(out)) {
     return .{ .out = out };
@@ -29,7 +30,7 @@ pub fn ZigWriter(comptime Writer: type) type {
         /// made into its own project.
         pub fn print(w: Self, comptime fmt: []const u8, args: anytype) Error!void {
             @setEvalBranchQuota(100_000);
-            const arg_fields = @typeInfo(@TypeOf(args)).@"struct".fields;
+            const arg_fields = compat.typeInfo(@TypeOf(args)).@"struct".fields;
 
             comptime var current_arg = 0;
             comptime var i = 0;
@@ -100,11 +101,11 @@ pub fn ZigWriter(comptime Writer: type) type {
 }
 
 inline fn isString(comptime T: type) bool {
-    return switch (@typeInfo(T)) {
+    return switch (compat.typeInfo(T)) {
         .pointer => |pointer| if (pointer.size == .Slice)
             pointer.child == u8
         else if (pointer.size == .One)
-            switch (@typeInfo(pointer.child)) {
+            switch (compat.typeInfo(pointer.child)) {
                 .array => |array| array.child == u8,
                 else => false,
             }