pub struct GameGenreMap {
pub game_id: i32,
pub genre_id: i32,
pub created_at: Option<Timestamp>,
pub updated_at: Option<Timestamp>,
}
Fields§
§game_id: i32
§genre_id: i32
§created_at: Option<Timestamp>
§updated_at: Option<Timestamp>
Trait Implementations§
Source§impl<'update> AsChangeset for &'update GameGenreMap
impl<'update> AsChangeset for &'update GameGenreMap
Source§type Changeset = <(Option<Grouped<Eq<created_at, <&'update Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <&'update Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as AsChangeset>::Changeset
type Changeset = <(Option<Grouped<Eq<created_at, <&'update Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <&'update Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as AsChangeset>::Changeset
The update statement this type represents
Source§fn as_changeset(self) -> <Self as AsChangeset>::Changeset
fn as_changeset(self) -> <Self as AsChangeset>::Changeset
Convert
self
into the actual update statement being executedSource§impl AsChangeset for GameGenreMap
impl AsChangeset for GameGenreMap
Source§type Changeset = <(Option<Grouped<Eq<created_at, <Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as AsChangeset>::Changeset
type Changeset = <(Option<Grouped<Eq<created_at, <Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as AsChangeset>::Changeset
The update statement this type represents
Source§fn as_changeset(self) -> <Self as AsChangeset>::Changeset
fn as_changeset(self) -> <Self as AsChangeset>::Changeset
Convert
self
into the actual update statement being executedSource§impl<__FK> BelongsTo<&Game> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a Game: Identifiable<Id = &'__a __FK>,
impl<__FK> BelongsTo<&Game> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a Game: Identifiable<Id = &'__a __FK>,
Source§type ForeignKey = __FK
type ForeignKey = __FK
The foreign key of this struct
Source§type ForeignKeyColumn = game_id
type ForeignKeyColumn = game_id
The database column representing the foreign key
of the table this struct represents
Source§fn foreign_key(&self) -> Option<&Self::ForeignKey>
fn foreign_key(&self) -> Option<&Self::ForeignKey>
Returns the foreign key for
self
Source§fn foreign_key_column() -> Self::ForeignKeyColumn
fn foreign_key_column() -> Self::ForeignKeyColumn
Returns the foreign key column of this struct’s table
Source§impl<__FK> BelongsTo<&GameGenre> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a GameGenre: Identifiable<Id = &'__a __FK>,
impl<__FK> BelongsTo<&GameGenre> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a GameGenre: Identifiable<Id = &'__a __FK>,
Source§type ForeignKey = __FK
type ForeignKey = __FK
The foreign key of this struct
Source§type ForeignKeyColumn = genre_id
type ForeignKeyColumn = genre_id
The database column representing the foreign key
of the table this struct represents
Source§fn foreign_key(&self) -> Option<&Self::ForeignKey>
fn foreign_key(&self) -> Option<&Self::ForeignKey>
Returns the foreign key for
self
Source§fn foreign_key_column() -> Self::ForeignKeyColumn
fn foreign_key_column() -> Self::ForeignKeyColumn
Returns the foreign key column of this struct’s table
Source§impl<__FK> BelongsTo<Game> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a Game: Identifiable<Id = &'__a __FK>,
impl<__FK> BelongsTo<Game> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a Game: Identifiable<Id = &'__a __FK>,
Source§type ForeignKey = __FK
type ForeignKey = __FK
The foreign key of this struct
Source§type ForeignKeyColumn = game_id
type ForeignKeyColumn = game_id
The database column representing the foreign key
of the table this struct represents
Source§fn foreign_key(&self) -> Option<&Self::ForeignKey>
fn foreign_key(&self) -> Option<&Self::ForeignKey>
Returns the foreign key for
self
Source§fn foreign_key_column() -> Self::ForeignKeyColumn
fn foreign_key_column() -> Self::ForeignKeyColumn
Returns the foreign key column of this struct’s table
Source§impl<__FK> BelongsTo<GameGenre> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a GameGenre: Identifiable<Id = &'__a __FK>,
impl<__FK> BelongsTo<GameGenre> for GameGenreMapwhere
__FK: Hash + Eq,
for<'__a> &'__a i32: Into<Option<&'__a __FK>>,
for<'__a> &'__a GameGenre: Identifiable<Id = &'__a __FK>,
Source§type ForeignKey = __FK
type ForeignKey = __FK
The foreign key of this struct
Source§type ForeignKeyColumn = genre_id
type ForeignKeyColumn = genre_id
The database column representing the foreign key
of the table this struct represents
Source§fn foreign_key(&self) -> Option<&Self::ForeignKey>
fn foreign_key(&self) -> Option<&Self::ForeignKey>
Returns the foreign key for
self
Source§fn foreign_key_column() -> Self::ForeignKeyColumn
fn foreign_key_column() -> Self::ForeignKeyColumn
Returns the foreign key column of this struct’s table
Source§impl Clone for GameGenreMap
impl Clone for GameGenreMap
Source§fn clone(&self) -> GameGenreMap
fn clone(&self) -> GameGenreMap
Returns a duplicate of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moreSource§impl Debug for GameGenreMap
impl Debug for GameGenreMap
Source§impl Default for GameGenreMap
impl Default for GameGenreMap
Source§impl<'de> Deserialize<'de> for GameGenreMap
impl<'de> Deserialize<'de> for GameGenreMap
Source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
Deserialize this value from the given Serde deserializer. Read more
Source§impl HasTable for GameGenreMap
impl HasTable for GameGenreMap
Source§impl Hash for GameGenreMap
impl Hash for GameGenreMap
Source§impl<'ident> Identifiable for &'ident GameGenreMap
impl<'ident> Identifiable for &'ident GameGenreMap
Source§impl<'insert> Insertable<table> for &'insert GameGenreMap
impl<'insert> Insertable<table> for &'insert GameGenreMap
Source§type Values = <(Option<Grouped<Eq<game_id, <&'insert i32 as AsExpression<<game_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<genre_id, <&'insert i32 as AsExpression<<genre_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<created_at, <&'insert Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <&'insert Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as Insertable<table>>::Values
type Values = <(Option<Grouped<Eq<game_id, <&'insert i32 as AsExpression<<game_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<genre_id, <&'insert i32 as AsExpression<<genre_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<created_at, <&'insert Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <&'insert Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as Insertable<table>>::Values
The
VALUES
clause to insert these records Read moreSource§fn values(
self,
) -> <(Option<Eq<game_id, &'insert i32>>, Option<Eq<genre_id, &'insert i32>>, Option<Eq<created_at, &'insert Timestamp>>, Option<Eq<updated_at, &'insert Timestamp>>) as Insertable<table>>::Values
fn values( self, ) -> <(Option<Eq<game_id, &'insert i32>>, Option<Eq<genre_id, &'insert i32>>, Option<Eq<created_at, &'insert Timestamp>>, Option<Eq<updated_at, &'insert Timestamp>>) as Insertable<table>>::Values
Construct
Self::Values
Read moreSource§fn insert_into(self, table: T) -> InsertStatement<T, Self::Values>
fn insert_into(self, table: T) -> InsertStatement<T, Self::Values>
Insert
self
into a given table. Read moreSource§impl Insertable<table> for GameGenreMap
impl Insertable<table> for GameGenreMap
Source§type Values = <(Option<Grouped<Eq<game_id, <i32 as AsExpression<<game_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<genre_id, <i32 as AsExpression<<genre_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<created_at, <Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as Insertable<table>>::Values
type Values = <(Option<Grouped<Eq<game_id, <i32 as AsExpression<<game_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<genre_id, <i32 as AsExpression<<genre_id as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<created_at, <Timestamp as AsExpression<<created_at as Expression>::SqlType>>::Expression>>>, Option<Grouped<Eq<updated_at, <Timestamp as AsExpression<<updated_at as Expression>::SqlType>>::Expression>>>) as Insertable<table>>::Values
The
VALUES
clause to insert these records Read moreSource§fn values(
self,
) -> <(Option<Eq<game_id, i32>>, Option<Eq<genre_id, i32>>, Option<Eq<created_at, Timestamp>>, Option<Eq<updated_at, Timestamp>>) as Insertable<table>>::Values
fn values( self, ) -> <(Option<Eq<game_id, i32>>, Option<Eq<genre_id, i32>>, Option<Eq<created_at, Timestamp>>, Option<Eq<updated_at, Timestamp>>) as Insertable<table>>::Values
Construct
Self::Values
Read moreSource§fn insert_into(self, table: T) -> InsertStatement<T, Self::Values>
fn insert_into(self, table: T) -> InsertStatement<T, Self::Values>
Insert
self
into a given table. Read moreSource§impl Message for GameGenreMap
impl Message for GameGenreMap
Source§fn encoded_len(&self) -> usize
fn encoded_len(&self) -> usize
Returns the encoded length of the message without a length delimiter.
Source§fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>
fn encode<B>(&self, buf: &mut B) -> Result<(), EncodeError>
Encodes the message to a buffer. Read more
Source§fn encode_to_vec(&self) -> Vec<u8> ⓘwhere
Self: Sized,
fn encode_to_vec(&self) -> Vec<u8> ⓘwhere
Self: Sized,
Encodes the message to a newly allocated buffer.
Source§fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>
fn encode_length_delimited<B>(&self, buf: &mut B) -> Result<(), EncodeError>
Encodes the message with a length-delimiter to a buffer. Read more
Source§fn encode_length_delimited_to_vec(&self) -> Vec<u8> ⓘwhere
Self: Sized,
fn encode_length_delimited_to_vec(&self) -> Vec<u8> ⓘwhere
Self: Sized,
Encodes the message with a length-delimiter to a newly allocated buffer.
Source§fn decode<B>(buf: B) -> Result<Self, DecodeError>
fn decode<B>(buf: B) -> Result<Self, DecodeError>
Decodes an instance of the message from a buffer. Read more
Source§fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>
fn decode_length_delimited<B>(buf: B) -> Result<Self, DecodeError>
Decodes a length-delimited instance of the message from the buffer.
Source§fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>
fn merge<B>(&mut self, buf: B) -> Result<(), DecodeError>
Decodes an instance of the message from a buffer, and merges it into
self
. Read moreSource§fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>
fn merge_length_delimited<B>(&mut self, buf: B) -> Result<(), DecodeError>
Decodes a length-delimited instance of the message from buffer, and
merges it into
self
.Source§impl PartialEq for GameGenreMap
impl PartialEq for GameGenreMap
Source§impl<__DB: Backend, __ST0, __ST1, __ST2, __ST3> Queryable<(__ST0, __ST1, __ST2, __ST3), __DB> for GameGenreMapwhere
(i32, i32, Option<Timestamp>, Option<Timestamp>): FromStaticSqlRow<(__ST0, __ST1, __ST2, __ST3), __DB>,
impl<__DB: Backend, __ST0, __ST1, __ST2, __ST3> Queryable<(__ST0, __ST1, __ST2, __ST3), __DB> for GameGenreMapwhere
(i32, i32, Option<Timestamp>, Option<Timestamp>): FromStaticSqlRow<(__ST0, __ST1, __ST2, __ST3), __DB>,
Source§impl<__DB: Backend> Selectable<__DB> for GameGenreMap
impl<__DB: Backend> Selectable<__DB> for GameGenreMap
Source§type SelectExpression = (game_id, genre_id, created_at, updated_at)
type SelectExpression = (game_id, genre_id, created_at, updated_at)
The expression you’d like to select. Read more
Source§fn construct_selection() -> Self::SelectExpression
fn construct_selection() -> Self::SelectExpression
Construct an instance of the expression
Source§impl Serialize for GameGenreMap
impl Serialize for GameGenreMap
impl Eq for GameGenreMap
impl StructuralPartialEq for GameGenreMap
impl UndecoratedInsertRecord<table> for GameGenreMap
Auto Trait Implementations§
impl Freeze for GameGenreMap
impl RefUnwindSafe for GameGenreMap
impl Send for GameGenreMap
impl Sync for GameGenreMap
impl Unpin for GameGenreMap
impl UnwindSafe for GameGenreMap
Blanket Implementations§
Source§impl<'a, Parent, Child> BelongingToDsl<&'a Vec<Parent>> for Childwhere
Child: BelongingToDsl<&'a [Parent]>,
impl<'a, Parent, Child> BelongingToDsl<&'a Vec<Parent>> for Childwhere
Child: BelongingToDsl<&'a [Parent]>,
Source§type Output = <Child as BelongingToDsl<&'a [Parent]>>::Output
type Output = <Child as BelongingToDsl<&'a [Parent]>>::Output
The query returned by
belonging_to
Source§fn belonging_to(
parents: &'a Vec<Parent>,
) -> <Child as BelongingToDsl<&'a Vec<Parent>>>::Output
fn belonging_to( parents: &'a Vec<Parent>, ) -> <Child as BelongingToDsl<&'a Vec<Parent>>>::Output
Get the record(s) belonging to record(s)
other
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
Source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoRequest<T> for T
impl<T> IntoRequest<T> for T
Source§fn into_request(self) -> Request<T>
fn into_request(self) -> Request<T>
Wrap the input message
T
in a tonic::Request
Source§impl<T> IntoSql for T
impl<T> IntoSql for T
Source§fn into_sql<T>(self) -> Self::Expression
fn into_sql<T>(self) -> Self::Expression
Convert
self
to an expression for Diesel’s query builder. Read moreSource§fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression
fn as_sql<'a, T>(&'a self) -> <&'a Self as AsExpression<T>>::Expression
Convert
&self
to an expression for Diesel’s query builder. Read moreSource§impl<T, Conn> RunQueryDsl<Conn> for T
impl<T, Conn> RunQueryDsl<Conn> for T
Source§fn execute<'conn, 'query>(
self,
conn: &'conn mut Conn,
) -> <Conn as AsyncConnection>::ExecuteFuture<'conn, 'query>
fn execute<'conn, 'query>( self, conn: &'conn mut Conn, ) -> <Conn as AsyncConnection>::ExecuteFuture<'conn, 'query>
Executes the given command, returning the number of rows affected. Read more
Source§fn load<'query, 'conn, U>(
self,
conn: &'conn mut Conn,
) -> AndThen<Self::LoadFuture<'conn>, TryCollect<Self::Stream<'conn>, Vec<U>>, fn(Self::Stream<'conn>) -> TryCollect<Self::Stream<'conn>, Vec<U>>>
fn load<'query, 'conn, U>( self, conn: &'conn mut Conn, ) -> AndThen<Self::LoadFuture<'conn>, TryCollect<Self::Stream<'conn>, Vec<U>>, fn(Self::Stream<'conn>) -> TryCollect<Self::Stream<'conn>, Vec<U>>>
Source§fn load_stream<'conn, 'query, U>(
self,
conn: &'conn mut Conn,
) -> Self::LoadFuture<'conn>where
Conn: AsyncConnection,
U: 'conn,
Self: LoadQuery<'query, Conn, U> + 'query,
fn load_stream<'conn, 'query, U>(
self,
conn: &'conn mut Conn,
) -> Self::LoadFuture<'conn>where
Conn: AsyncConnection,
U: 'conn,
Self: LoadQuery<'query, Conn, U> + 'query,
Source§fn get_result<'query, 'conn, U>(
self,
conn: &'conn mut Conn,
) -> AndThen<Self::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>, fn(Self::Stream<'conn>) -> Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>>
fn get_result<'query, 'conn, U>( self, conn: &'conn mut Conn, ) -> AndThen<Self::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>, fn(Self::Stream<'conn>) -> Map<StreamFuture<Pin<Box<Self::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<Self::Stream<'conn>>>)) -> Result<U, Error>>>
Runs the command, and returns the affected row. Read more
Source§fn get_results<'query, 'conn, U>(
self,
conn: &'conn mut Conn,
) -> AndThen<Self::LoadFuture<'conn>, TryCollect<Self::Stream<'conn>, Vec<U>>, fn(Self::Stream<'conn>) -> TryCollect<Self::Stream<'conn>, Vec<U>>>
fn get_results<'query, 'conn, U>( self, conn: &'conn mut Conn, ) -> AndThen<Self::LoadFuture<'conn>, TryCollect<Self::Stream<'conn>, Vec<U>>, fn(Self::Stream<'conn>) -> TryCollect<Self::Stream<'conn>, Vec<U>>>
Runs the command, returning an
Vec
with the affected rows. Read moreSource§fn first<'query, 'conn, U>(
self,
conn: &'conn mut Conn,
) -> AndThen<<Self::Output as LoadQuery<'query, Conn, U>>::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>)) -> Result<U, Error>>, fn(<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>) -> Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>)) -> Result<U, Error>>>
fn first<'query, 'conn, U>( self, conn: &'conn mut Conn, ) -> AndThen<<Self::Output as LoadQuery<'query, Conn, U>>::LoadFuture<'conn>, Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>)) -> Result<U, Error>>, fn(<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>) -> Map<StreamFuture<Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>>, fn((Option<Result<U, Error>>, Pin<Box<<Self::Output as LoadQuery<'query, Conn, U>>::Stream<'conn>>>)) -> Result<U, Error>>>
Attempts to load a single record. Read more
Source§impl<T, DB> SelectableHelper<DB> for Twhere
T: Selectable<DB>,
DB: Backend,
impl<T, DB> SelectableHelper<DB> for Twhere
T: Selectable<DB>,
DB: Backend,
Source§fn as_select() -> SelectBy<T, DB>
fn as_select() -> SelectBy<T, DB>
Construct a select clause based on a
Selectable
implementation. Read moreSource§fn as_returning() -> SelectBy<Self, DB>
fn as_returning() -> SelectBy<Self, DB>
An alias for
as_select
that can be used with returning clausesSource§impl<T, ST, DB> StaticallySizedRow<ST, DB> for T
impl<T, ST, DB> StaticallySizedRow<ST, DB> for T
Source§const FIELD_COUNT: usize = <ST as crate::util::TupleSize>::SIZE
const FIELD_COUNT: usize = <ST as crate::util::TupleSize>::SIZE
The number of fields that this type will consume.