Struct SourcePosition 

pub struct SourcePosition {
    pub line: usize,
    pub column: usize,
    pub offset: usize,
    pub length: usize,
}

Position in source text (line, column, byte offset)

Fields

line: usize

column: usize

offset: usize

length: usize

Implementations

impl SourcePosition

pub fn new( line: usize, column: usize, offset: usize, length: usize, ) -> SourcePosition

Create a new source position

pub fn start() -> SourcePosition

Create position at start

pub fn from_offset( content: &str, offset: usize, length: usize, ) -> SourcePosition

Create position from byte offset by computing line and column.

This is O(n) where n is the offset - suitable for single-use cases. For bulk operations, use from_offset_indexed with a pre-computed LineIndex.

Line numbers start at 1, column numbers start at 1.

pub fn from_offset_indexed( index: &LineIndex, offset: usize, length: usize, ) -> SourcePosition

Create position from byte offset using a pre-computed line index.

This is O(log n) - use for bulk parsing operations.

Trait Implementations

impl Clone for SourcePosition

fn clone(&self) -> SourcePosition

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for SourcePosition

impl Debug for SourcePosition

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

Formats the value using the given formatter.

impl Default for SourcePosition

fn default() -> SourcePosition

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for SourcePosition

fn deserialize<__D>( __deserializer: __D, ) -> Result<SourcePosition, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for SourcePosition

impl Hash for SourcePosition

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for SourcePosition

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for SourcePosition

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for SourcePosition