pub struct LineIndex { /* private fields */ }Expand description
A compact, serializable mapping from byte offsets to 1-indexed
(line, column) pairs.
Computed once from source text at compile time. Unlike crate::source::SourceFile,
this does not retain the source text itself - only the byte offset
where each line starts - so it’s cheap enough to embed in compiled
.rlc bytecode (which intentionally doesn’t ship the original
source). This lets runtime errors raised from .rlc bytecode still
report a precise file:line:col location instead of a bare message,
without paying the cost (or leaking the source) of a full ariadne
snippet.
Implementations§
Source§impl LineIndex
impl LineIndex
Sourcepub fn new(source_name: impl Into<Arc<str>>, text: &str) -> Self
pub fn new(source_name: impl Into<Arc<str>>, text: &str) -> Self
Builds a LineIndex by scanning text for line breaks.
Sourcepub fn from_raw(source_name: impl Into<Arc<str>>, line_starts: Vec<u32>) -> Self
pub fn from_raw(source_name: impl Into<Arc<str>>, line_starts: Vec<u32>) -> Self
Reconstructs a LineIndex from its raw parts (used when
deserializing from a .rlc file).
pub fn source_name(&self) -> &Arc<str> ⓘ
pub fn line_starts(&self) -> &[u32]
Trait Implementations§
impl Eq for LineIndex
impl StructuralPartialEq for LineIndex
Auto Trait Implementations§
impl Freeze for LineIndex
impl RefUnwindSafe for LineIndex
impl Send for LineIndex
impl Sync for LineIndex
impl Unpin for LineIndex
impl UnsafeUnpin for LineIndex
impl UnwindSafe for LineIndex
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