Class: SpotFeel::Node

Inherits:

Treetop::Runtime::SyntaxNode

• Object
• Treetop::Runtime::SyntaxNode
• SpotFeel::Node

Defined in:

lib/spot_feel/nodes.rb

Direct Known Subclasses

Addition, BooleanLiteral, ClosedIntervalEnd, ClosedIntervalStart, Comparison, ComparisonOperator, Conjunction, Context, ContextEntry, ContextEntryList, DateTimeLiteral, Disjunction, Division, Exponentiation, FilterExpression, FormalParameter, FunctionDefinition, FunctionInvocation, IfExpression, InstanceOf, Interval, List, ListEntries, Multiplication, Name, NullLiteral, NumericLiteral, OpenIntervalEnd, OpenIntervalStart, PositionalParameters, QualifiedName, QuantifiedExpression, SimpleExpressions, SimplePositiveUnaryTest, SimplePositiveUnaryTests, SimpleUnaryTests, StringLiteral, Subtraction

Instance Method Summary

• #qualified_names_in_context(hash = {}, prefix = '', qualified_names = Set.new) ⇒ Object

  Takes a context hash and returns an array of qualified names { “person”: { “name”: { “first”: “Eric”, “last”: “Carlson” }, “age”: 60 } } => [“person”, “person.name.first”, “person.name.last”, “person.age”].

• #raise_evaluation_error(missing_name, ctx = {}) ⇒ Object

Instance Method Details

#qualified_names_in_context(hash = {}, prefix = '', qualified_names = Set.new) ⇒ Object

Takes a context hash and returns an array of qualified names { “person”: { “name”: { “first”: “Eric”, “last”: “Carlson” }, “age”: 60 } } => [“person”, “person.name.first”, “person.name.last”, “person.age”]

# File 'lib/spot_feel/nodes.rb', line 9

def qualified_names_in_context(hash = {}, prefix = '', qualified_names = Set.new)
  hash.each do |key, value|
    new_prefix = prefix.empty? ? "#{key}" : "#{prefix}.#{key}"
    if value.is_a?(Hash)
      qualified_names_in_context(value, new_prefix, qualified_names)
    else
      qualified_names.add(new_prefix)
    end
  end if hash

  qualified_names.to_a
end

#raise_evaluation_error(missing_name, ctx = {}) ⇒ Object

Raises:

• (EvaluationError)

# File 'lib/spot_feel/nodes.rb', line 22

def raise_evaluation_error(missing_name, ctx = {})
  names = qualified_names_in_context(ctx)
  checker = DidYouMean::SpellChecker.new(dictionary: names)
  guess = checker.correct(missing_name)
  suffix = " Did you mean #{guess.first}?" unless guess.empty?
  raise EvaluationError.new("Identifier #{missing_name} not found.#{suffix}")
end