1const builtin = @import("builtin");
 2const std = @import("std");
 3const expect = std.testing.expect;
 4
 5test "decl literal" {
 6    const S = struct {
 7        x: u32,
 8        const foo: @This() = .{ .x = 123 };
 9    };
10
11    const val: S = .foo;
12    try expect(val.x == 123);
13}
14
15test "decl literal with optional" {
16    const S = struct {
17        x: u32,
18        const foo: ?@This() = .{ .x = 123 };
19    };
20
21    const val: ?S = .foo;
22    try expect(val.?.x == 123);
23}
24
25test "decl literal with pointer" {
26    const S = struct {
27        x: u32,
28        const foo: *const @This() = &.{ .x = 123 };
29    };
30
31    const val: *const S = .foo;
32    try expect(val.x == 123);
33}
34
35test "call decl literal with optional" {
36    if (builtin.zig_backend == .stage2_sparc64) return error.SkipZigTest;
37    if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest;
38    if (builtin.zig_backend == .stage2_spirv) return error.SkipZigTest;
39
40    const S = struct {
41        x: u32,
42        fn init() ?@This() {
43            return .{ .x = 123 };
44        }
45    };
46
47    const val: ?S = .init();
48    try expect(val.?.x == 123);
49}
50
51test "call decl literal with pointer" {
52    const S = struct {
53        x: u32,
54        fn init() *const @This() {
55            return &.{ .x = 123 };
56        }
57    };
58
59    const val: *const S = .init();
60    try expect(val.x == 123);
61}
62
63test "call decl literal" {
64    const S = struct {
65        x: u32,
66        fn init() @This() {
67            return .{ .x = 123 };
68        }
69    };
70
71    const val: S = .init();
72    try expect(val.x == 123);
73}
74
75test "call decl literal with error union" {
76    if (builtin.zig_backend == .stage2_spirv) return error.SkipZigTest; // TODO
77
78    const S = struct {
79        x: u32,
80        fn init(err: bool) !@This() {
81            if (err) return error.Bad;
82            return .{ .x = 123 };
83        }
84    };
85
86    const val: S = try .init(false);
87    try expect(val.x == 123);
88}