class BELParser::Language::Syntax::UndefinedNamespace

Undefined namespace finds parameter prefixes that reference an undefined namespace.

Public Class Methods

map(prefix_node, spec, namespaces) click to toggle source
# File lib/bel_parser/language/syntax/undefined_namespace.rb, line 13
def self.map(prefix_node, spec, namespaces)
  return nil unless prefix_node.is_a?(BELParser::Parsers::AST::Prefix)

  prefix_identifier = prefix_node.identifier
  return nil if prefix_identifier.nil?

  prefix = prefix_identifier.string_literal
  unless namespaces[prefix]
    UndefinedNamespaceError.new(prefix_node, spec, prefix, namespaces)
  end
end