Trait NodeMetadata 

pub trait NodeMetadata:
    Sized
    + Copy
    + Default {
    // Required method
    fn merge(self, other: Self) -> Self;

    // Provided methods
    fn with_size(self, _size: u16) -> Self { ... }
    fn with_declaration(self) -> Self { ... }
    fn with_nested(self) -> Self { ... }
}

Aggregated metadata for nodes, that can propagate up a node tree.

Required Methods

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

Merges another NodeMetadata into this one, returning the result.

Provided Methods

fn with_size(self, _size: u16) -> Self

Sets the size of this metadata (e.g., number of declarations, selector list length). Default implementation is a no-op for metadata types that don’t track size.

fn with_declaration(self) -> Self

Marks this metadata as describing a declaration. Default implementation is a no-op for metadata types that don’t track node kinds.

fn with_nested(self) -> Self

Marks this metadata as describing a node nested inside another node. Default implementation is a no-op for metadata types that don’t track node kinds.

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementations on Foreign Types

impl NodeMetadata for ()

fn merge(self, _: Self) -> Self

Implementors