Class: BELParser::Language::Semantics::NonObjectList

Inherits:
Object
  • Object
show all
Includes:
SemanticsFunction
Defined in:
lib/bel_parser/language/semantics/non_object_list.rb

Overview

NonObjectList implements a SemanticsFunction that maps a Parsers::AST::Object to a SemanticsWarning if the object of a multiple relationship *is not* a list term.

Class Method Summary collapse

Class Method Details

.map(stmt_node, spec, _namespaces) ⇒ Object 



14
15
16
17
18
19
20
21
22
23
24
25
26
 
# File 'lib/bel_parser/language/semantics/non_object_list.rb', line 14

def self.map(stmt_node, spec, _namespaces)
  return nil unless stmt_node.is_a?(BELParser::Parsers::AST::Statement)
  return nil if stmt_node.relationship.string_literal.nil?

  list_func = spec.function(:list)
  return nil unless list_func

  rel = spec.relationship(stmt_node.relationship.string_literal.to_sym)
  return nil unless rel
  return nil unless rel.listable?

  map_object(stmt_node.object, rel, list_func, spec)
end

.map_object(obj_node, rel, list_func, spec) ⇒ Object 



28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/bel_parser/language/semantics/non_object_list.rb', line 28

def self.map_object(obj_node, rel, list_func, spec)
  return NonObjectListWarning.new(
    obj_node,
    spec,
    rel) unless obj_node.term?

  obj_func = obj_node.child.function.identifier.string_literal
  NonObjectListWarning.new(
    obj_node,
    spec,
    rel) unless spec.function(obj_func.to_sym) == list_func
end