Meg's Mirrors

zig

1	const std = @import("std");
2	const builtin = @import("builtin");
3	const expect = std.testing.expect;
4
5	const Foo = @import("hasdecl/foo.zig");
6
7	pub const Bar = struct {
8	nope: i32,
9
10	const hi = 1;
11	pub var blah = "xxx";
12	};
13
14	test "@hasDecl" {
15	if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
16
17	try expect(@hasDecl(Foo, "public_thing"));
18	try expect(!@hasDecl(Foo, "private_thing"));
19	try expect(!@hasDecl(Foo, "no_thing"));
20
21	try expect(!@hasDecl(Bar, "hi"));
22	try expect(@hasDecl(Bar, "blah"));
23	try expect(!@hasDecl(Bar, "nope"));
24	}
25
26	test "@hasDecl using a sliced string literal" {
27	if (builtin.zig_backend == .stage2_riscv64) return error.SkipZigTest;
28
29	try expect(@hasDecl(@This(), "Bar") == true);
30	try expect(@hasDecl(@This(), "Bar"[0..0]) == false);
31	try expect(@hasDecl(@This(), "Bar"[0..1]) == false);
32	try expect(@hasDecl(@This(), "Bar"[0..2]) == false);
33	try expect(@hasDecl(@This(), "Bar"[0..3]) == true);
34	try expect(@hasDecl(@This(), "Bar"[0..]) == true);
35	}