Bring up to zig 0.11

build.zig

@@ -1,17 +1,26 @@
 const std = @import("std");
 
-pub fn build(b: *std.build.Builder) void {
+pub fn build(b: *std.Build) void {
     // Standard release options allow the person running `zig build` to select
     // between Debug, ReleaseSafe, ReleaseFast, and ReleaseSmall.
-    const mode = b.standardReleaseOptions();
+    const target = b.standardTargetOptions(.{});
+    const optimize = b.standardOptimizeOption(.{});
 
-    const lib = b.addStaticLibrary("chrono", "src/main.zig");
-    lib.setBuildMode(mode);
-    lib.install();
+    const lib = b.addStaticLibrary(.{
+        .name = "chrono",
+        .root_source_file = .{ .path = "src/main.zig" },
+        .target = target,
+        .optimize = optimize,
+    });
+    b.installArtifact(lib);
 
-    const main_tests = b.addTest("src/tests.zig");
-    main_tests.setBuildMode(mode);
+    const main_tests = b.addTest(.{
+        .root_source_file = .{ .path = "src/tests.zig" },
+        .target = target,
+        .optimize = optimize,
+    });
+    const run_main_tests = b.addRunArtifact(main_tests);
 
     const test_step = b.step("test", "Run library tests");
-    test_step.dependOn(&main_tests.step);
+    test_step.dependOn(&run_main_tests.step);
 }

src/main.zig

@@ -114,7 +114,7 @@ pub const DateTime = struct {
                 seconds -= 60;
                 minutes -= 1;
             }
-            const second = @intCast(u6, seconds + 60);
+            const second: u6 = @intCast(seconds + 60);
             return Self{
                 .year = year,
                 .month = month.?,
@@ -145,10 +145,10 @@ pub const DateTime = struct {
             return Self{
                 .year = year,
                 .month = month,
-                .day = @intCast(u8, day),
-                .hour = @intCast(u5, hour),
-                .minute = @intCast(u6, minute),
-                .second = @intCast(u6, seconds),
+                .day = @intCast(day),
+                .hour = @intCast(hour),
+                .minute = @intCast(minute),
+                .second = @intCast(seconds),
                 .tz = .utc,
             };
         } else {
@@ -171,7 +171,7 @@ pub const DateTime = struct {
     pub fn weekday(self: Self) WeekDay {
         const ts = self.toTimestamp();
         const days = @divTrunc(ts, SECONDS_PER_DAY);
-        return @intToEnum(WeekDay, @rem(days, 7));
+        return @enumFromInt(@rem(days, 7));
     }
 
     pub fn compare(self: Self, other: Self) Comparison {
@@ -190,7 +190,7 @@ pub const DateTime = struct {
         _ = options;
 
         try writer.print("{s}-{d:0>2}-{d:0>2}", .{
-            self.year, @enumToInt(self.month), self.day,
+            self.year, @intFromEnum(self.month), self.day,
         });
         if (self.hour) |h| {
             try writer.print("T{d:0>2}", .{h});
@@ -209,7 +209,7 @@ pub const DateTime = struct {
         writer: anytype,
     ) !void {
         try writer.print("{s}{d:0>2}{d:0>2}", .{
-            self.year, @enumToInt(self.month), self.day,
+            self.year, @intFromEnum(self.month), self.day,
         });
         if (self.hour) |h| {
             try writer.print("T{d:0>2}", .{h});

src/month.zig

@@ -21,7 +21,7 @@ pub const Month = enum(u4) {
     const Self = @This();
 
     pub fn days(self: Self, year: Year) u5 {
-        return switch (@enumToInt(self)) {
+        return switch (@intFromEnum(self)) {
             1, 3, 5, 7, 8, 10, 12 => 31,
             2 => switch (year) {
                 .normal => 28,
@@ -36,12 +36,12 @@ pub const Month = enum(u4) {
     }
 
     pub fn next(self: Self) ?Self {
-        const num = @enumToInt(self);
-        return if (num < 12) @intToEnum(Self, num + 1) else null;
+        const num = @intFromEnum(self);
+        return if (num < 12) @enumFromInt(num + 1) else null;
     }
 
     pub fn previous(self: Self) ?Self {
-        const num = @enumToInt(self);
-        return if (num > 1) @intToEnum(Self, num - 1) else null;
+        const num = @intFromEnum(self);
+        return if (num > 1) @enumFromInt(num - 1) else null;
     }
 };

src/tests.zig

@@ -80,7 +80,7 @@ test "new timezone utc" {
     debug.print("Passed\n", .{});
 }
 
-test "get year" {
+test "get year from DateTime" {
     const dt = DateTime{
         .year = Year.new(2023),
         .month = .june,

src/timezone.zig

@@ -32,10 +32,10 @@ pub const Offset = union(Sign) {
             if (hours == 0 and m == 0) return null;
         } else if (hours == 0) return null;
         if (hours < 0) {
-            const h = @intCast(u4, @as(i8, hours) * -1);
+            const h: u4 = @intCast(@as(i8, hours) * -1);
             return Self{ .negative = .{ .hours = h, .minutes = minutes } };
         } else {
-            return Self{ .positive = .{ .hours = @intCast(u4, hours), .minutes = minutes } };
+            return Self{ .positive = .{ .hours = @intCast(hours), .minutes = minutes } };
         }
     }
 

src/year.zig

@@ -62,7 +62,7 @@ pub const Year = union(YearTag) {
 
         const year = self.get();
         if (year > 0) {
-            try writer.print("{d:0>4}", .{@intCast(u32, year)});
+            try writer.print("{d:0>4}", .{@as(u32, @intCast(year))});
         } else {
             try writer.print("{d:0>4}", .{year});
         }