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union #shared_nil

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This adds a feature to `union` which requires all the variants to have a `nil` value and on assign to the union, checks whether that value is `nil` or not. If the value is `nil`, the union will be `nil` (thus sharing the `nil` value)
This commit is contained in:
gingerBill
2022-03-24 11:55:03 +00:00
parent 3e66eec735
commit 3f935bea25
10 changed files with 104 additions and 32 deletions
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8
src/docs_writer.cpp
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@@ -619,9 +619,11 @@ OdinDocTypeIndex odin_doc_type(OdinDocWriter *w, Type *type) {
case Type_Union:
doc_type.kind = OdinDocType_Union;
if (type->Union.is_polymorphic) { doc_type.flags |= OdinDocTypeFlag_Union_polymorphic; }
if (type->Union.no_nil) { doc_type.flags |= OdinDocTypeFlag_Union_no_nil; }
if (type->Union.maybe) { doc_type.flags |= OdinDocTypeFlag_Union_maybe; }
switch (type->Union.kind) {
case UnionType_maybe: doc_type.flags |= OdinDocTypeFlag_Union_maybe; break;
case UnionType_no_nil: doc_type.flags |= OdinDocTypeFlag_Union_no_nil; break;
case UnionType_shared_nil: doc_type.flags |= OdinDocTypeFlag_Union_shared_nil; break;
}
{
auto variants = array_make<OdinDocTypeIndex>(heap_allocator(), type->Union.variants.count);
defer (array_free(&variants));