pub struct LineRows<R, Program, Offset = <R as Reader>::Offset> where
Program: LineProgram<R, Offset>,
R: Reader<Offset = Offset>,
Offset: ReaderOffset, { /* private fields */ }Expand description
Executes a LineProgram to iterate over the rows in the matrix of line number information.
“The hypothetical machine used by a consumer of the line number information to expand the byte-coded instruction stream into a matrix of line number information.” – Section 6.2.1
Implementations
sourceimpl<R, Program, Offset> LineRows<R, Program, Offset> where
Program: LineProgram<R, Offset>,
R: Reader<Offset = Offset>,
Offset: ReaderOffset,
impl<R, Program, Offset> LineRows<R, Program, Offset> where
Program: LineProgram<R, Offset>,
R: Reader<Offset = Offset>,
Offset: ReaderOffset,
sourcepub fn header(&self) -> &LineProgramHeader<R, Offset>
pub fn header(&self) -> &LineProgramHeader<R, Offset>
Get a reference to the header for this state machine’s line number program.
sourcepub fn next_row(
&mut self
) -> Result<Option<(&LineProgramHeader<R, Offset>, &LineRow)>>
pub fn next_row(
&mut self
) -> Result<Option<(&LineProgramHeader<R, Offset>, &LineRow)>>
Parse and execute the next instructions in the line number program until another row in the line number matrix is computed.
The freshly computed row is returned as Ok(Some((header, row))).
If the matrix is complete, and there are no more new rows in the line
number matrix, then Ok(None) is returned. If there was an error parsing
an instruction, then Err(e) is returned.
Unfortunately, the references mean that this cannot be a
FallibleIterator.
Trait Implementations
sourceimpl<R: Clone, Program: Clone, Offset: Clone> Clone for LineRows<R, Program, Offset> where
Program: LineProgram<R, Offset>,
R: Reader<Offset = Offset>,
Offset: ReaderOffset,
impl<R: Clone, Program: Clone, Offset: Clone> Clone for LineRows<R, Program, Offset> where
Program: LineProgram<R, Offset>,
R: Reader<Offset = Offset>,
Offset: ReaderOffset,
Auto Trait Implementations
impl<R, Program, Offset> RefUnwindSafe for LineRows<R, Program, Offset> where
Program: RefUnwindSafe,
R: RefUnwindSafe,
impl<R, Program, Offset> Send for LineRows<R, Program, Offset> where
Program: Send,
R: Send,
impl<R, Program, Offset> Sync for LineRows<R, Program, Offset> where
Program: Sync,
R: Sync,
impl<R, Program, Offset> Unpin for LineRows<R, Program, Offset> where
Program: Unpin,
R: Unpin,
impl<R, Program, Offset> UnwindSafe for LineRows<R, Program, Offset> where
Program: UnwindSafe,
R: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> ToOwned for T where
T: Clone,
impl<T> ToOwned for T where
T: Clone,
type Owned = T
type Owned = T
The resulting type after obtaining ownership.
sourcefn clone_into(&self, target: &mut T)
fn clone_into(&self, target: &mut T)
toowned_clone_into)Uses borrowed data to replace owned data, usually by cloning. Read more