Struct ScopedLabelIndices 

pub struct ScopedLabelIndices {
    labels: BTreeMap<String, Vec<ScopedLabel>>,
}

Scoped label indices that track labels with their scope information

Fields

labels: BTreeMap<String, Vec<ScopedLabel>>

Map of label name to all its definitions with scope info

Implementations

impl ScopedLabelIndices

pub fn new() -> Self

Create a new empty scoped label indices

pub fn insert( &mut self, name: String, offset: usize, scope_id: &ScopeId, ) -> Result<(), LabelError>

Insert a label with scope information Returns an error if the label already exists in the same scope

pub fn get( &self, name: &str, current_scope: &ScopeId, ) -> Result<Option<usize>, LabelError>

Get the label offset for a given name, considering scope Returns the label from the deepest matching scope Returns an error if duplicate labels are found in sibling scopes when cross-referencing

pub fn get_any(&self, name: &str) -> Option<usize>

Get any label offset for a given name, regardless of scope Used for jump tables which may reference labels in any scope Returns the first matching label if there are multiple

pub fn extend(&mut self, other: ScopedLabelIndices)

Extend this indices with another set of indices

pub fn is_empty(&self) -> bool

Check if the indices are empty

pub fn iter(&self) -> impl Iterator<Item = (&String, &Vec<ScopedLabel>)>

Iterate over all labels

pub fn update_offsets(&mut self, offset_mapping: &BTreeMap<usize, usize>)

Update label offsets using a mapping from old offsets to new offsets This is used after jump relaxation to update label positions

Trait Implementations

impl Clone for ScopedLabelIndices

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ScopedLabelIndices

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

Formats the value using the given formatter.

impl Default for ScopedLabelIndices

fn default() -> Self

Returns the “default value” for a type.

impl Eq for ScopedLabelIndices

impl Ord for ScopedLabelIndices

fn cmp(&self, other: &Self) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

fn clamp_to<R>(self, range: R) -> Self

where Self: Sized, R: ClampBounds<Self>,

🔬This is a nightly-only experimental API. (clamp_to)

Restrict a value to a certain range.

impl PartialEq for ScopedLabelIndices

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

Equality operator ==.

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

Inequality operator !=.

impl PartialOrd for ScopedLabelIndices

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StructuralPartialEq for ScopedLabelIndices

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 24 bytes