pub struct EditSession<'a> { /* private fields */ }Expand description
A deferred, atomic batch of byte-range edits to a Document.
Ranges refer to the unchanged source exposed by Self::source. Edits
may be queued in any order, but their ranges must not overlap and two
edits cannot begin at the same byte. The target document is borrowed but
not modified until Self::commit validates the assembled source as one
YAML document.
The session intentionally exposes no typed reads. Resolve every required
span before starting the session, queue the replacements, and commit once.
This avoids the repeated complete-document validation required by
independent Document::replace_span calls.
Implementations§
Source§impl<'a> EditSession<'a>
impl<'a> EditSession<'a>
Sourcepub fn replace_span(
&mut self,
start: usize,
end: usize,
replacement: impl Into<String>,
) -> Result<()>
pub fn replace_span( &mut self, start: usize, end: usize, replacement: impl Into<String>, ) -> Result<()>
Queue a replacement measured against Self::source.
Insertions use an empty range (start == end). Adjacent ranges are
accepted, while overlapping ranges and multiple edits beginning at the
same byte are rejected because their application order would be
ambiguous.
§Errors
Returns Error::Parse when the range is out of bounds, is not on
UTF-8 character boundaries, or conflicts with an already queued edit.
YAML syntax is validated once, by Self::commit.
Sourcepub fn commit(self) -> Result<()>
pub fn commit(self) -> Result<()>
Validate and atomically commit every queued replacement.
The candidate is assembled without mutating the target document, then validated and rebuilt as coordinated source, green-tree, value, and span views. A parse or budget error leaves the target unchanged.
§Errors
Returns the parser error produced by the complete candidate document, including an error when the edits introduce a second YAML document.
Trait Implementations§
Auto Trait Implementations§
impl<'a> !RefUnwindSafe for EditSession<'a>
impl<'a> !Sync for EditSession<'a>
impl<'a> !UnwindSafe for EditSession<'a>
impl<'a> Freeze for EditSession<'a>
impl<'a> Send for EditSession<'a>
impl<'a> Unpin for EditSession<'a>
impl<'a> UnsafeUnpin for EditSession<'a>
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