Enum Flow 

pub enum Flow {
    Continue,
    SkipChildren,
    Stop,
}

What a Visitor tells walk to do after entering a node.

Returned from Visitor::enter to steer the traversal:

• Continue — descend into this node’s children, then leave it.
• SkipChildren — do not descend, but still leave this node.
• Stop — abandon the whole walk now; no further node is entered or left.

Examples

use ast_lang::Flow;

// The default for a visitor that wants the full tree.
assert_eq!(Flow::default(), Flow::Continue);

Variants

Continue

Descend into the node’s children, then call Visitor::leave for it.

SkipChildren

Skip the node’s children but still call Visitor::leave for it.

Stop

Stop the entire walk immediately; no further enter or leave runs.

Trait Implementations

impl Clone for Flow

fn clone(&self) -> Flow

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Flow

impl Debug for Flow

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

Formats the value using the given formatter.

impl Default for Flow

fn default() -> Flow

Returns the “default value” for a type.

impl Eq for Flow

impl Hash for Flow

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Flow

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for Flow