Class: DDQL::TokenType::Literal

Inherits:

DDQL::TokenType

Object
DDQL::TokenType
DDQL::TokenType::Literal

show all

Defined in:: lib/ddql/token_type.rb

Overview

Literals

Direct Known Subclasses

Currency, Integer, Numeric, ScientificNumeric, SpecialMarker, String

Constant Summary

Constants inherited from DDQL::TokenType

ALL, CURRENCY_LITERAL, FACTOR, FACTOR_PATTERN, INFIXOPERATOR, INTEGER_LITERAL, LBRACE, LPAREN, NESTED_CLOSER, NESTED_CLOSE_PATTERN, NESTED_OPENER, NESTED_OPEN_PATTERN, NUMERIC_LITERAL, POSTFIXOPERATOR, PREFIXOPERATOR, RBRACE, RPAREN, SCI_NUM_LITERAL, SCREEN, SPECIAL_MARKER, STRING_LITERAL, SUB_Q_ALIAS, SUB_Q_EXPR, SUB_Q_FIELDS, SUB_Q_GROUP, SUB_Q_TYPE, WHITESPACE

Instance Attribute Summary

Attributes inherited from DDQL::TokenType

#label, #name, #pattern

Instance Method Summary collapse

#as_hash(data) ⇒ Object
#data_type ⇒ Object
#initialize(name:, pattern:) ⇒ Literal constructor

A new instance of Literal.
#literal? ⇒ Boolean

Methods inherited from DDQL::TokenType

#==, all_types_pattern, #comparison?, #data_from, #expression?, #factor?, #group?, #infix?, #interpret, #interpreted_data_from, #match?, #parse, #postfix?, #prefix?, #screen?, #skipping!, #supports_post_processing?, #trimming!

Constructor Details

#initialize(name:, pattern:) ⇒ `Literal`

Returns a new instance of Literal.

# File 'lib/ddql/token_type.rb', line 109

def initialize(name:, pattern:)
  super(name: name, pattern: pattern)
  trimming!
end

Instance Method Details

#as_hash(data) ⇒ `Object`



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# File 'lib/ddql/token_type.rb', line 114

def as_hash(data)
  {data_type => data}
end

#data_type ⇒ `Object`



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# File 'lib/ddql/token_type.rb', line 118

def data_type
  raise "subclass responsibility for [#{self.class}]"
end

#literal? ⇒ `Boolean`

Returns:

(Boolean)



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# File 'lib/ddql/token_type.rb', line 122

def literal?
  true
end