Enum syntax_ext::deriving::generic::SubstructureFields [] [src]

pub enum SubstructureFields<'a> {
    Struct(&'a VariantDataVec<FieldInfo<'a>>),
    EnumMatching(usize, &'a VariantVec<FieldInfo<'a>>),
    EnumNonMatchingCollapsed(Vec<Ident>, &'a [Variant]&'a [Ident]),
    StaticStruct(&'a VariantDataStaticFields),
    StaticEnum(&'a EnumDefVec<(Ident, Span, StaticFields)>),
}
🔬 This is a nightly-only experimental API. (rustc_private)

A summary of the possible sets of fields.

Variants

🔬 This is a nightly-only experimental API. (rustc_private)
🔬 This is a nightly-only experimental API. (rustc_private)

Matching variants of the enum: variant index, ast::Variant, fields: the field name is only non-None in the case of a struct variant.

🔬 This is a nightly-only experimental API. (rustc_private)

Non-matching variants of the enum, but with all state hidden from the consequent code. The first component holds Idents for all of the Self arguments; the second component is a slice of all of the variants for the enum itself, and the third component is a list of Idents bound to the variant index values for each of the actual input Self arguments.

🔬 This is a nightly-only experimental API. (rustc_private)

A static method where Self is a struct.

🔬 This is a nightly-only experimental API. (rustc_private)

A static method where Self is an enum.