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make no-variant types a dedicated Variants variant

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This commit is contained in:
Ralf Jung 2024-12-01 17:33:01 +01:00
parent d7d08ae95c
commit c858ce132f
3 changed files with 10 additions and 9 deletions
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3
crates/hir-ty/src/utils.rs
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@ -334,8 +334,9 @@ pub(crate) fn detect_variant_from_bytes<'a>(
e: EnumId,
) -> Option<(EnumVariantId, &'a Layout)> {
let (var_id, var_layout) = match &layout.variants {
hir_def::layout::Variants::Empty => unreachable!(),
hir_def::layout::Variants::Single { index } => {
(db.enum_data(e).variants[index.unwrap().0].0, layout)
(db.enum_data(e).variants[index.0].0, layout)
}
hir_def::layout::Variants::Multiple { tag, tag_encoding, variants, .. } => {
let size = tag.size(target_data_layout).bytes_usize();