class SyntaxTree::Parser

def on_top_const_field(constant)

on_top_const_field: (Const constant) -> TopConstRef
:call-seq: 
def on_top_const_field(constant)
  operator = find_colon2_before(constant)
  TopConstField.new(
    constant: constant,
    location: operator.location.to(constant.location)
  )
end