Fields and Ids of enum variants and structs
For enum variants: NodeId
represents both an Id of the variant itself (relevant for all
variant kinds) and an Id of the variant's constructor (not relevant for Struct
-variants).
One shared Id can be successfully used for these two purposes.
Id of the whole enum lives in Item
.
For structs: NodeId
represents an Id of the structure's constructor, so it is not actually
used for Struct
-structs (but still presents). Structures don't have an analogue of "Id of
the variant itself" from enum variants.
Id of the whole struct lives in Item
.
Struct variant.
E.g., Bar { .. }
as in enum Foo { Bar { .. } }
.
Tuple variant.
E.g., Bar(..)
as in enum Foo { Bar(..) }
.
Unit variant.
E.g., Bar = ..
as in enum Foo { Bar = .. }
.
Performs copy-assignment from source
. Read more
Formats the value using the given formatter. Read more
type Owned = T
Creates owned data from borrowed data, usually by cloning. Read more
🔬 This is a nightly-only experimental API. (toowned_clone_into
)
recently added
Uses borrowed data to replace owned data, usually by cloning. Read more
type Error = !
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Immutably borrows from an owned value. Read more
type Error = <U as TryFrom<T>>::Error
🔬 This is a nightly-only experimental API. (try_from
)
The type returned in the event of a conversion error.
🔬 This is a nightly-only experimental API. (try_from
)
Mutably borrows from an owned value. Read more
🔬 This is a nightly-only experimental API. (get_type_id
)
this method will likely be replaced by an associated static
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more
🔬 This is a nightly-only experimental API. (rustc_private
)
this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml
instead?
Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S
is the encoder/decoder state type, T
is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more