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refactor

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This commit is contained in:
Folkert 2021-06-21 23:24:55 +02:00
parent 84855dae5e
commit e80f8a5114
2 changed files with 15 additions and 42 deletions
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53
compiler/mono/src/layout.rs
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@ -107,32 +107,19 @@ impl<'a> UnionLayout<'a> {
}
pub fn layout_at(self, tag_id: u8, index: usize) -> Layout<'a> {
match self {
let result = match self {
UnionLayout::NonRecursive(tag_layouts) => {
let field_layouts = tag_layouts[tag_id as usize];
field_layouts[index]
// this cannot be recursive; return immediately
return field_layouts[index];
}
UnionLayout::Recursive(tag_layouts) => {
let field_layouts = tag_layouts[tag_id as usize];
let result = field_layouts[index];
if let Layout::RecursivePointer = result {
Layout::Union(self)
} else {
result
}
}
UnionLayout::NonNullableUnwrapped(field_layouts) => {
let result = field_layouts[index];
if let Layout::RecursivePointer = result {
Layout::Union(self)
} else {
result
}
field_layouts[index]
}
UnionLayout::NonNullableUnwrapped(field_layouts) => field_layouts[index],
UnionLayout::NullableWrapped {
nullable_id,
other_tags,
@ -146,13 +133,7 @@ impl<'a> UnionLayout<'a> {
};
let field_layouts = other_tags[tag_index as usize];
let result = field_layouts[index];
if let Layout::RecursivePointer = result {
Layout::Union(self)
} else {
result
}
field_layouts[index]
}
UnionLayout::NullableUnwrapped {
@ -161,24 +142,14 @@ impl<'a> UnionLayout<'a> {
} => {
debug_assert_ne!(nullable_id, tag_id != 0);
let result = other_fields[index as usize];
if let Layout::RecursivePointer = result {
Layout::Union(self)
} else {
result
}
other_fields[index as usize]
}
}
}
};
pub fn stores_tag(&self) -> bool {
match self {
UnionLayout::NonRecursive(_) => true,
UnionLayout::Recursive(_) => true,
UnionLayout::NonNullableUnwrapped(_) => false,
UnionLayout::NullableWrapped { .. } => true,
UnionLayout::NullableUnwrapped { .. } => true,
if let Layout::RecursivePointer = result {
Layout::Union(self)
} else {
result
}
}
}