Type Alias ExprRef

pub type ExprRef = Arc<dyn VortexExpr>;

Aliased Type

pub struct ExprRef { /* private fields */ }

Trait Implementations

impl Node for ExprRef

fn apply_children<'a, F: FnMut(&'a Self) -> VortexResult<TraversalOrder>>( &'a self, f: F, ) -> VortexResult<TraversalOrder>

Walk the node’s children by applying f to them.

fn map_children<F: FnMut(Self) -> VortexResult<Transformed<Self>>>( self, f: F, ) -> VortexResult<Transformed<Self>>

Rewrite the node’s children by applying f to them.

fn rewrite<R: NodeRewriter<NodeTy = Self>>( self, rewriter: &mut R, ) -> VortexResult<Transformed<Self>>

Walk the tree in pre-order (top-down) way, rewriting it as it goes.

fn accept<'a, V: NodeVisitor<'a, NodeTy = Self>>( &'a self, visitor: &mut V, ) -> VortexResult<TraversalOrder>

A pre-order (top-down) traversal.

fn transform_down<F: FnMut(Self) -> VortexResult<Transformed<Self>>>( self, f: F, ) -> VortexResult<Transformed<Self>>

A pre-order transformation

fn transform_up<F: FnMut(Self) -> VortexResult<Transformed<Self>>>( self, f: F, ) -> VortexResult<Transformed<Self>>

A post-order transform

impl<'a> NodeContainer<'a, Arc<dyn VortexExpr>> for ExprRef

fn apply_elements<F: FnMut(&'a Self) -> VortexResult<TraversalOrder>>( &'a self, f: F, ) -> VortexResult<TraversalOrder>

Applies f to all elements of the container, accepting them by reference

fn map_elements<F: FnMut(Self) -> VortexResult<Transformed<Self>>>( self, f: F, ) -> VortexResult<Transformed<Self>>

Consumes all the children of the node, replacing them with the result of f.

impl VortexExprExt for ExprRef

fn field_references(&self) -> HashSet<FieldName>

Accumulate all field references from this expression and its children in a set