Enum ParentRef 

#[non_exhaustive]
pub enum ParentRef {
    Struct(SyntaxNode),
    Map(SyntaxNode),
    List(SyntaxNode),
    Tuple(SyntaxNode),
    EnumVariant(SyntaxNode),
}

Which collection a structural op targets, addressed by an ast-navigable reference (parent kind + index into the document).

A ParentRef names one collection node in the document being transformed. The caller resolves a selection to a parent + index; this module re-resolves the parent (by walking the document’s value tree to the node whose byte range matches) and then addresses elements by index within it.

#[non_exhaustive] so future container kinds can be added without a breaking change.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Struct(SyntaxNode)

A struct / anonymous struct node (its field: value entries).

Map(SyntaxNode)

A map node (its key: value entries).

List(SyntaxNode)

A list node (its elements).

Tuple(SyntaxNode)

A tuple node (its positional elements).

EnumVariant(SyntaxNode)

An enum variant’s struct-like payload (its field: value entries).

Implementations

impl ParentRef

pub fn node(&self) -> &SyntaxNode

The underlying parent SyntaxNode.

Trait Implementations

impl Clone for ParentRef

fn clone(&self) -> ParentRef

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ParentRef

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

Formats the value using the given formatter.

impl Eq for ParentRef

impl PartialEq for ParentRef

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for ParentRef