Enum DiffKind 

pub enum DiffKind {
    Unchanged,
    Added,
    Removed,
    TypeChanged {
        old_type: String,
        new_type: String,
    },
    ParameterChanged {
        old_value: String,
        new_value: String,
    },
    ChildrenChanged,
}

Kind of change between two expression nodes.

Variants

Unchanged

No change

Added

Node was added (present in new, absent in old)

Removed

Node was removed (present in old, absent in new)

TypeChanged

Node type changed (e.g., And -> Or)

Fields

old_type: String

new_type: String

ParameterChanged

Node parameters changed (e.g., different predicate name)

Fields

old_value: String

new_value: String

ChildrenChanged

Children changed (recurse into sub-diffs)

Implementations

impl DiffKind

pub fn is_change(&self) -> bool

Returns true if this represents an actual change (not Unchanged).

Trait Implementations

impl Clone for DiffKind

fn clone(&self) -> DiffKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DiffKind

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for DiffKind

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for DiffKind

fn eq(&self, other: &DiffKind) -> 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 Serialize for DiffKind

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for DiffKind