Exhaustive internally tagged tests + support of internally tagged enums in non self-describing formats#2569

Draft

Mingun wants to merge 15 commits intoserde-rs:masterfrom Mingun:internally-tagged-tests

+382-720

Commits on Oct 22, 2024

Explain code in ContentDeserializer::deserialize_newtype_struct and add comments about coverage
Mingun
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Cover all cases in ContentDeserializer::deserialize_option
Mingun
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Move test forgotten in 2cbfd37 due to resolving conflicts
Mingun
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Remove confusing call to deserialize_untagged_variant in deserialize_internally_tagged_variant
Mingun
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Add test for sequence in newtype_unit
Mingun
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Unify handling of unit and unit structs in ContentDeserializer
Mingun
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Consistently use visit_content_seq and visit_content_map when deserialize enums
Mingun
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Deserializer should not check correctness of data, this is the responsibility of the Visitor
Mingun
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Store deserializer in Enum[Ref]Deserializer and Variant[Ref]Deserializer directly
Mingun
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cargo fmt
Mingun
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Copy content::EnumDeserializer into FlatEnumDeserializer
Mingun
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Remove Option because Some variant is always used
Mingun
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Add support for internally tagged enums in non self-describing formats
Mingun
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Add support for struct variants in untagged and adjacently tagged enums in non self-describing formats
Mingun
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Use deserialize_unit instead of deserialize_any for unit variants of untagged and adjacently tagged enums
Mingun
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