use Red::AST::Unary; use Red::AST::Value; unit class Red::AST::Generic::Prefix does Red::AST::Unary; has Str $.op is required; has $.returns; has $.value; method should-set(--> Hash()) { self.find-column-name => self.find-value } method should-validate {} method find-column-name { gather for self.args { .take for .?find-column-name } } method find-value { for self.args { .return with .?find-value } } method new($value, Str :$op, :$returns, Bool :$bind) { self.bless: :value(ast-value $value), :$op, :$returns, :$bind }