pub struct Demo {
    pub x: i32,
    pub y: i32,
}

//@ set x = "$.index[?(@.name=='x')].id"
//@ set y = "$.index[?(@.name=='y')].id"
//@ is "$.index[?(@.name=='Demo')].inner.struct.kind.plain.fields[0]" $x
//@ is "$.index[?(@.name=='Demo')].inner.struct.kind.plain.fields[1]" $y
//@ count "$.index[?(@.name=='Demo')].inner.struct.kind.plain.fields[*]" 2
//@ is "$.index[?(@.name=='Demo')].inner.struct.kind.plain.has_stripped_fields" false