9be2f76741
This was already the case, but the documentation failed to point out that the returned value is of type `*const [N:0]u8`, i.e. that of a string literal. Also adds a behavioral test to assert that this is the case.
32 lines
1.2 KiB
Zig
32 lines
1.2 KiB
Zig
const std = @import("std");
|
|
|
|
const TestEnum = enum { TestEnumValue };
|
|
const tag_name = @tagName(TestEnum.TestEnumValue);
|
|
const ptr_tag_name: [*:0]const u8 = tag_name;
|
|
|
|
test "@tagName() returns a string literal" {
|
|
try std.testing.expectEqual([:0]const u8, @TypeOf(tag_name));
|
|
try std.testing.expectEqualStrings("TestEnumValue", tag_name);
|
|
try std.testing.expectEqualStrings("TestEnumValue", ptr_tag_name[0..tag_name.len]);
|
|
}
|
|
|
|
const TestError = error{TestErrorCode};
|
|
const error_name = @errorName(TestError.TestErrorCode);
|
|
const ptr_error_name: [*:0]const u8 = error_name;
|
|
|
|
test "@errorName() returns a string literal" {
|
|
try std.testing.expectEqual([:0]const u8, @TypeOf(error_name));
|
|
try std.testing.expectEqualStrings("TestErrorCode", error_name);
|
|
try std.testing.expectEqualStrings("TestErrorCode", ptr_error_name[0..error_name.len]);
|
|
}
|
|
|
|
const TestType = struct {};
|
|
const type_name = @typeName(TestType);
|
|
const ptr_type_name: [*:0]const u8 = type_name;
|
|
|
|
test "@typeName() returns a string literal" {
|
|
try std.testing.expectEqual(*const [type_name.len:0]u8, @TypeOf(type_name));
|
|
try std.testing.expectEqualStrings("TestType", type_name);
|
|
try std.testing.expectEqualStrings("TestType", ptr_type_name[0..type_name.len]);
|
|
}
|