Enum tinychain::chain::Subject [−][src]
pub enum Subject { BTree(BTreeFile), Table(TableIndex), Value(File<Value>), }
Expand description
The state whose transactional integrity is protected by a Chain
.
Variants
Tuple Fields of BTree
0: BTreeFile
Tuple Fields of Table
0: TableIndex
Tuple Fields of Value
0: File<Value>
Implementations
Trait Implementations
The decoding context of this type, useful in situations where the stream to be decoded may be too large to hold in main memory. Read more
Commit this transaction.
Auto Trait Implementations
impl !RefUnwindSafe for Subject
impl !UnwindSafe for Subject
Blanket Implementations
Mutably borrows from an owned value. Read more
Instruments this type with the provided Span
, returning an
Instrumented
wrapper. Read more
Returns true
if self
can be cast into the target type T
.
type Output = T
type Output = T
Should always be Self
Test if value
can be cast into Self
.
Returns Some(Self)
if the source value can be cast into Self
, otherwise None
.
fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
OnErr: FnOnce(&T) -> Err,
fn try_cast_from<Err, OnErr>(value: T, on_err: OnErr) -> Result<Self, Err> where
OnErr: FnOnce(&T) -> Err,
Returns Ok(Self)
if the source value can be cast into Self
, otherwise calls on_err
.
Test if self
can be cast into T
.
Returns Some(T)
if self
can be cast into T
, otherwise None
.
fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where
OnErr: FnOnce(&Self) -> Err,
fn try_cast_into<Err, OnErr>(self, on_err: OnErr) -> Result<T, Err> where
OnErr: FnOnce(&Self) -> Err,
Returns Ok(T)
if self
can be cast into T
, otherwise calls on_err
.