Module: Expressir::Express::Builders::Helpers

Included in:
BuiltInBuilder, ExpressionBuilder, LiteralBuilder, ReferenceBuilder, SimpleIdBuilder, StatementBuilder, TypeBuilder
Defined in:
lib/expressir/express/builders/helpers.rb

Overview

Shared helper methods for all builders. Included as a module to avoid duplication.

Instance Method Summary collapse

Instance Method Details

#apply_qualifier(ref, qualifier) ⇒ Object

Apply qualifier to reference



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# File 'lib/expressir/express/builders/helpers.rb', line 127

def apply_qualifier(ref, qualifier)
  case qualifier
  when Expressir::Model::References::AttributeReference
    Expressir::Model::References::AttributeReference.new(ref: ref,
                                                         attribute: qualifier.attribute)
  when Expressir::Model::References::GroupReference
    Expressir::Model::References::GroupReference.new(ref: ref,
                                                     entity: qualifier.entity)
  when Expressir::Model::References::IndexReference
    Expressir::Model::References::IndexReference.new(ref: ref,
                                                     index1: qualifier.index1, index2: qualifier.index2)
  when Expressir::Model::References::SimpleReference
    Expressir::Model::References::AttributeReference.new(ref: ref,
                                                         attribute: qualifier)
  else
    ref
  end
end

#extract_id_ref(data) ⇒ Object

Extract ID from reference types like functionId, constantId, etc.



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# File 'lib/expressir/express/builders/helpers.rb', line 55

def extract_id_ref(data)
  id_data = data[:function_id] || data[:constant_id] || data[:parameter_id] ||
    data[:variable_id] || data[:attribute_id] || data[:entity_id] ||
    data[:type_id] || data[:procedure_id] || data[:schema_id] ||
    data[:type_label_id] || data[:enumeration_id] || data[:rename_id] ||
    data[:simple_id]

  extract_nested_text(id_data || first_value(data))
end

#extract_interval_op(data) ⇒ Object

Extract interval operator



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# File 'lib/expressir/express/builders/helpers.rb', line 66

def extract_interval_op(data)
  return nil unless data

  if data.is_a?(Array)
    data.each do |item|
      next unless item.is_a?(Hash)
      return "LESS_THAN" if item[:op_less_than]
      return "LESS_THAN_OR_EQUAL" if item[:op_less_equal]
    end
    nil
  elsif data.is_a?(Hash)
    return "LESS_THAN" if data[:op_less_than]
    return "LESS_THAN_OR_EQUAL" if data[:op_less_equal]

    nil
  end
end

#extract_nested_text(data) ⇒ Object

Recursively extract text from nested structures



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# File 'lib/expressir/express/builders/helpers.rb', line 31

def extract_nested_text(data)
  return nil unless data
  return data.to_s if data.is_a?(String)
  return data.to_s if data.is_a?(Symbol)
  return data.to_s if data.is_a?(Parsanol::Slice)

  if data.is_a?(Hash)
    str = data[:str]
    return str.to_s if str

    data.each_value do |value|
      result = extract_nested_text(value)
      return result if result
    end
  elsif data.is_a?(Array)
    data.each do |item|
      result = extract_nested_text(item)
      return result if result
    end
  end
  nil
end

#extract_operator(data) ⇒ Object

Extract binary operator



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# File 'lib/expressir/express/builders/helpers.rb', line 85

def extract_operator(data)
  return nil unless data
  return :ADDITION if data[:op_plus]
  return :SUBTRACTION if data[:op_minus]
  return :OR if data[:t_or]
  return :XOR if data[:t_xor]
  return :MULTIPLICATION if data[:op_asterisk]
  return :REAL_DIVISION if data[:op_slash]
  return :INTEGER_DIVISION if data[:t_div]
  return :MODULO if data[:t_mod]
  return :AND if data[:t_and]
  return :COMBINE if data[:op_double_pipe]

  extract_text(first_value(data))&.upcase&.to_sym
end

#extract_rel_op(data) ⇒ Object

Extract relational operator



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# File 'lib/expressir/express/builders/helpers.rb', line 112

def extract_rel_op(data)
  return nil unless data
  return :EQUAL if data[:t_equal] || data[:op_equals]
  return :NOT_EQUAL if data[:t_not_equal] || data[:op_less_greater]
  return :LESS_THAN if data[:t_less_than] || data[:op_less_than]
  return :GREATER_THAN if data[:t_greater_than] || data[:op_greater_than]
  return :LESS_THAN_OR_EQUAL if data[:t_less_than_or_equal] || data[:op_less_equal]
  return :GREATER_THAN_OR_EQUAL if data[:t_greater_than_or_equal] || data[:op_greater_equal]
  return :INSTANCE_EQUAL if data[:t_instance_equal] || data[:op_colon_equals_colon]
  return :INSTANCE_NOT_EQUAL if data[:t_instance_not_equal] || data[:op_colon_less_greater_colon]

  extract_text(first_value(data))&.upcase&.to_sym
end

#extract_text(val) ⇒ Object

Extract text from Parsanol::Slice or return as-is



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# File 'lib/expressir/express/builders/helpers.rb', line 10

def extract_text(val)
  return nil unless val
  return val.to_s if val.is_a?(String)
  return val.to_s if val.is_a?(Symbol)
  return val.to_s if val.is_a?(Parsanol::Slice)

  if val.is_a?(Hash)
    str = val[:str]
    return str.to_s if str
  end
  val
end

#extract_unary_op(data) ⇒ Object

Extract unary operator



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# File 'lib/expressir/express/builders/helpers.rb', line 102

def extract_unary_op(data)
  return nil unless data
  return :PLUS if data[:op_plus]
  return :MINUS if data[:op_minus]
  return :NOT if data[:t_not]

  extract_text(first_value(data))&.upcase&.to_sym
end

#first_value(hash) ⇒ Object

Get first value from a hash (for union types)



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# File 'lib/expressir/express/builders/helpers.rb', line 24

def first_value(hash)
  return nil unless hash.is_a?(Hash)

  hash.values.first
end