Class: BELParser::Language::Semantics::SignatureMapping

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

Overview

SignatureMapping implements a SemanticsFunction that maps a Parsers::AST::Node to SemanticsResult by checking each signature for the Function.

See Also:

Class Method Summary collapse

Class Method Details

.map(term_node, spec, _namespaces) ⇒ Object

Map term to BEL signatures defined by a BELParser::Language::Specification. The mapping includes both successful and failed signature matches.



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# File 'lib/bel_parser/language/semantics/signature_mapping.rb', line 20

def self.map(term_node, spec, _namespaces)
  return nil unless term_node.is_a?(BELParser::Parsers::AST::Term)

  function_name = term_node.function.identifier.string_literal
  function      = spec.function(function_name.to_sym)
  return nil unless function

  mapsig = method(:map_signature).to_proc.curry[term_node][spec]
  function.signatures.map(&mapsig)
end

.map_signature(term_node, spec, signature) ⇒ Object 



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# File 'lib/bel_parser/language/semantics/signature_mapping.rb', line 31

def self.map_signature(term_node, spec, signature)
  results = BELParser::Language::Semantics.match(
    term_node,
    signature.semantic_ast,
    spec)
  if results.all?(&:success?)
    SignatureMappingSuccess.new(term_node, spec, signature, results)
  else
    SignatureMappingWarning.new(term_node, spec, signature, results)
  end
end