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value: handle lazy_align and lazy_size in writeToPackedMemory

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Bogdan Romanyuk 2023-11-27 15:35:29 +03:00 committed by GitHub
parent 89572c6342
commit 7fbbeae617
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2 changed files with 18 additions and 1 deletions
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9
src/value.zig
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@ -803,7 +803,14 @@ pub const Value = struct {
switch (ip.indexToKey((try val.intFromEnum(ty, mod)).toIntern()).int.storage) {
inline .u64, .i64 => |int| std.mem.writeVarPackedInt(buffer, bit_offset, bits, int, endian),
.big_int => |bigint| bigint.writePackedTwosComplement(buffer, bit_offset, bits, endian),
else => unreachable,
.lazy_align => |lazy_align| {
const num = Type.fromInterned(lazy_align).abiAlignment(mod).toByteUnits(0);
std.mem.writeVarPackedInt(buffer, bit_offset, bits, num, endian);
},
.lazy_size => |lazy_size| {
const num = Type.fromInterned(lazy_size).abiSize(mod);
std.mem.writeVarPackedInt(buffer, bit_offset, bits, num, endian);
},
}
},
.Float => switch (ty.floatBits(target)) {

10
test/behavior/enum.zig
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@ -1225,3 +1225,13 @@ test "auto-numbered enum with signed tag type" {
try std.testing.expectEqualStrings("a", @tagName(E.a));
try std.testing.expectEqualStrings("b", @tagName(E.b));
}
test "lazy initialized field" {
try std.testing.expectEqual(@as(u8, @alignOf(struct {})), getLazyInitialized(.a));
}
fn getLazyInitialized(param: enum(u8) {
a = @bitCast(packed struct(u8) { a: u8 }{ .a = @alignOf(struct {}) }),
}) u8 {
return @intFromEnum(param);
}