Enum ChangeAction 

pub enum ChangeAction {
    Remove(AstNode),
    Insert(AstNode),
    Keep(AstNode, AstNode),
    Move(AstNode, AstNode),
    Update(AstNode, AstNode),
}

A change action describing a single difference between two ASTs.

Variants

Remove(AstNode)

A node present in source that was removed.

Insert(AstNode)

A node inserted into target that was not in source.

Keep(AstNode, AstNode)

A node that is structurally identical in both trees.

Move(AstNode, AstNode)

A node that was moved to a different position in the tree.

Update(AstNode, AstNode)

A node in source that was replaced by a different node in target.

Trait Implementations

impl Clone for ChangeAction

fn clone(&self) -> ChangeAction

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ChangeAction

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

Formats the value using the given formatter.

impl PartialEq for ChangeAction

fn eq(&self, other: &ChangeAction) -> 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 ChangeAction