Struct Fusion 

pub struct Fusion {
    pub rule: &'static str,
    pub at: OpId,
    pub became: &'static str,
    pub why: &'static str,
}

One rewrite that fired.

Fields

rule: &'static str

The rule’s name, which is the shape it matched: "flatten over map_list".

at: OpId

The operator that remains, in the fused plan’s numbering.

became: &'static str

What the operator became.

why: &'static str

The property that makes it sound.

Trait Implementations

impl Clone for Fusion

fn clone(&self) -> Fusion

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Fusion

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

Formats the value using the given formatter.