Class: BELParser::Script::Syntax::ExpressionValidation

Inherits:
Object
  • Object
show all
Extended by:
Language::Syntax::SyntaxFunction
Defined in:
lib/bel_parser/script/syntax/expression_validation.rb

Constant Summary collapse

TARGET_NODES = 
[
  BELParser::Parsers::AST::ObservedTerm,
  BELParser::Parsers::AST::SimpleStatement,
  BELParser::Parsers::AST::NestedStatement
]
EXP_VALIDATOR = 
BELParser::Language::ExpressionValidator

Class Method Summary collapse

Class Method Details

.expression_validator(script_context) ⇒ Object 



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# File 'lib/bel_parser/script/syntax/expression_validation.rb', line 29

def self.expression_validator(script_context)
  unless defined? @expression_validator
    spec, namespaces, uri_reader, url_reader =
      script_context.values_at(
        :specification,
        :namespace_definitions,
        :uri_reader,
        :url_reader)
    @expression_validator = EXP_VALIDATOR.new(
      spec, namespaces, uri_reader, url_reader)
  end
  @expression_validator
end

.map(ast_node, script_context) ⇒ Object 



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# File 'lib/bel_parser/script/syntax/expression_validation.rb', line 21

def self.map(ast_node, script_context)
  return nil unless TARGET_NODES.include?(ast_node.class)
  return nil unless script_context.key?(:specification)

  validator = expression_validator(script_context)
  validator.validate(ast_node)
end