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Add test for implicit extern-allowed enum tag type in extern struct

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Tadeo Kondrak 2020-09-26 08:21:27 -06:00
parent cae49b1b9d
commit 65016dff32
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test/compile_errors.zig
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@ -50,6 +50,47 @@ pub fn addCases(cases: *tests.CompileErrorContext) void {
"tmp.zig:2:20: error: TypeInfo.Enum.tag_type must be an integer type, not 'bool'",
});
cases.add("extern struct with extern-compatible but inferred integer tag type",
\\pub const E = enum {
\\@"0",@"1",@"2",@"3",@"4",@"5",@"6",@"7",@"8",@"9",@"10",@"11",@"12",
\\@"13",@"14",@"15",@"16",@"17",@"18",@"19",@"20",@"21",@"22",@"23",
\\@"24",@"25",@"26",@"27",@"28",@"29",@"30",@"31",@"32",@"33",@"34",
\\@"35",@"36",@"37",@"38",@"39",@"40",@"41",@"42",@"43",@"44",@"45",
\\@"46",@"47",@"48",@"49",@"50",@"51",@"52",@"53",@"54",@"55",@"56",
\\@"57",@"58",@"59",@"60",@"61",@"62",@"63",@"64",@"65",@"66",@"67",
\\@"68",@"69",@"70",@"71",@"72",@"73",@"74",@"75",@"76",@"77",@"78",
\\@"79",@"80",@"81",@"82",@"83",@"84",@"85",@"86",@"87",@"88",@"89",
\\@"90",@"91",@"92",@"93",@"94",@"95",@"96",@"97",@"98",@"99",@"100",
\\@"101",@"102",@"103",@"104",@"105",@"106",@"107",@"108",@"109",
\\@"110",@"111",@"112",@"113",@"114",@"115",@"116",@"117",@"118",
\\@"119",@"120",@"121",@"122",@"123",@"124",@"125",@"126",@"127",
\\@"128",@"129",@"130",@"131",@"132",@"133",@"134",@"135",@"136",
\\@"137",@"138",@"139",@"140",@"141",@"142",@"143",@"144",@"145",
\\@"146",@"147",@"148",@"149",@"150",@"151",@"152",@"153",@"154",
\\@"155",@"156",@"157",@"158",@"159",@"160",@"161",@"162",@"163",
\\@"164",@"165",@"166",@"167",@"168",@"169",@"170",@"171",@"172",
\\@"173",@"174",@"175",@"176",@"177",@"178",@"179",@"180",@"181",
\\@"182",@"183",@"184",@"185",@"186",@"187",@"188",@"189",@"190",
\\@"191",@"192",@"193",@"194",@"195",@"196",@"197",@"198",@"199",
\\@"200",@"201",@"202",@"203",@"204",@"205",@"206",@"207",@"208",
\\@"209",@"210",@"211",@"212",@"213",@"214",@"215",@"216",@"217",
\\@"218",@"219",@"220",@"221",@"222",@"223",@"224",@"225",@"226",
\\@"227",@"228",@"229",@"230",@"231",@"232",@"233",@"234",@"235",
\\@"236",@"237",@"238",@"239",@"240",@"241",@"242",@"243",@"244",
\\@"245",@"246",@"247",@"248",@"249",@"250",@"251",@"252",@"253",
\\@"254",@"255"
\\};
\\pub const S = extern struct {
\\ e: E,
\\};
\\export fn entry() void {
\\ if (@TagType(E) != u8) @compileError("did not infer u8 tag type");
\\ const s: S = undefined;
\\}
, &[_][]const u8{
"tmp.zig:31:5: error: extern structs cannot contain fields of type 'E'",
});
cases.add("@Type for tagged union with extra enum field",
\\const TypeInfo = @import("builtin").TypeInfo;
\\const Tag = @Type(.{