Fixes after Zig v0.14.0 release

Author: marselester

build.zig.zon

@@ -1,6 +1,7 @@
 .{
-    .name = "maxminddb",
+    .name = .maxminddb,
     .version = "0.0.0",
+    .fingerprint = 0x9ea10897ba27121c,
     .paths = .{
         "build.zig",
         "build.zig.zon",

src/decoder.zig

@@ -164,11 +164,11 @@ pub const Decoder = struct {
                 // We support Structs or Optional Structs only to safely decode arrays and hashmaps.
                 comptime var DecodedType: type = T;
                 switch (@typeInfo(DecodedType)) {
-                    .Struct => {},
-                    .Optional => |opt| {
+                    .@"struct" => {},
+                    .optional => |opt| {
                         DecodedType = opt.child;
                         switch (@typeInfo(DecodedType)) {
-                            .Struct => {},
+                            .@"struct" => {},
                             else => {
                                 std.debug.print("expected field {any} got optional {any}\n", .{ field, DecodedType });
                                 return DecodeError.UnsupportedFieldType;

src/mmap.zig

@@ -5,7 +5,8 @@ pub fn map(f: std.fs.File) ![]u8 {
     // see https://github.com/ziglang/zig/pull/21083.
 
     const file_size = (try f.stat()).size;
-    const aligned_file_size = std.mem.alignForward(usize, file_size, std.mem.page_size);
+    const page_size = std.heap.pageSize();
+    const aligned_file_size = std.mem.alignForward(usize, file_size, page_size);
     const src = try std.posix.mmap(
         null,
         aligned_file_size,
@@ -19,6 +20,7 @@ pub fn map(f: std.fs.File) ![]u8 {
 }
 
 pub fn unmap(src: []u8) void {
-    const aligned_src_len = std.mem.alignForward(usize, src.len, std.mem.page_size);
+    const page_size = std.heap.pageSize();
+    const aligned_src_len = std.mem.alignForward(usize, src.len, page_size);
     std.posix.munmap(@alignCast(src.ptr[0..aligned_src_len]));
 }

src/reader.zig

@@ -324,7 +324,7 @@ fn Iterator(comptime T: type) type {
         };
 
         pub fn next(self: *Self) !?Item {
-            while (self.stack.popOrNull()) |current| {
+            while (self.stack.pop()) |current| {
                 const reader = self.reader;
                 const bit_count = current.ip_bytes.bitCount();