Struct StreamBounds 

pub struct StreamBounds { /* private fields */ }

Where each /Contents element’s operators begin, within one flat operator list.

A page’s content is the concatenation of its /Contents streams, and the interpreter reads it as one run — a q in one element is closed by the Q in the next, which is legal and common. The editor still needs to know which element each object came from, so the boundaries travel alongside the operators rather than being recovered from them.

starts[i] is the index of the first operator belonging to element i. An empty record means a single unsplit stream: everything is element 0.

Implementations

impl StreamBounds

pub fn from_counts(counts: impl IntoIterator<Item = usize>) -> Self

The boundaries for content split into elements of the given operator counts.

pub fn from_joined( bytes: &[u8], total_ops: usize, ends: &[usize], limits: &Limits, ) -> Self

The boundaries for content joined from elements ending at the given byte offsets.

ends[i] is one past the last byte of element i, counting the separator a join inserts. A single element — or none — yields the default, where everything is element 0.

pub fn stream_of(&self, op_index: usize) -> usize

Which element the operator at op_index belongs to.

The last element whose start is at or before the operator — so an operator past every recorded start belongs to the final element, and a record with no starts at all answers 0.

pub fn len(&self) -> usize

How many elements the content was split into.

pub fn is_empty(&self) -> bool

Whether the content was never split.

Trait Implementations

impl Clone for StreamBounds

fn clone(&self) -> StreamBounds

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for StreamBounds

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for StreamBounds

fn default() -> StreamBounds

Returns the “default value” for a type.

impl Eq for StreamBounds

impl PartialEq for StreamBounds

fn eq(&self, other: &StreamBounds) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for StreamBounds