Struct WindowFeature 

pub struct WindowFeature {
    pub hash: FeatureHash,
    pub length: usize,
    pub range: ByteRange,
    pub block: u32,
    pub offset: u32,
}

One statement window: a fixed-length run of adjacent statements inside one block, hashed from per-statement summaries.

The statements of a block are its direct children selected exactly as IrNode::statement_summaries selects them: statement shapes plus Shape::Native children. Each statement contributes its shape tag, its native kind name (empty for common shapes) and the kind tags of its first SUMMARY_HEAD_TOKENS tokens — kinds, never texts, so consistent renames leave the hash unchanged.

Fields

hash: FeatureHash

Hash over the window’s per-statement summaries.

length: usize

Window length, in statements.

range: ByteRange

Bytes from the first through the last statement; reporting only.

block: u32

Ordinal of the enclosing block within the unit, in walk order.

Position, never identity: this locates the window so adjacent windows can be folded back into one statement run, and it never enters a hash (AGENTS.md invariant 3).

offset: u32

Index of the window’s first statement within its block’s statement sequence. Position, never identity, as for Self::block.

Trait Implementations

impl Clone for WindowFeature

fn clone(&self) -> WindowFeature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WindowFeature

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

Formats the value using the given formatter.

impl Eq for WindowFeature

impl PartialEq for WindowFeature

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WindowFeature