Class: Graphlyte::Syntax::Value

Inherits:
Data
  • Object
show all
Defined in:
lib/graphlyte/syntax.rb

Overview

A CONST input value See: spec.graphql.org/October2021/#sec-Input-Values

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Data

#==, attr_accessor, attr_reader, attributes, #dup, #hash

Constructor Details

#initialize(value = nil, type = nil, **kwargs) ⇒ Value

Returns a new instance of Value.



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# File 'lib/graphlyte/syntax.rb', line 248

def initialize(value = nil, type = nil, **kwargs)
  super(**kwargs)
  @value = value if value
  @type = type if type
  @type ||= value&.type
end

Instance Attribute Details

#type ⇒ Object

Returns the value of attribute type.



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# File 'lib/graphlyte/syntax.rb', line 246

def type
  @type
end

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/graphlyte/syntax.rb', line 246

def value
  @value
end

Class Method Details

.from_name(name) ⇒ Object 



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# File 'lib/graphlyte/syntax.rb', line 255

def self.from_name(name)
  case name
  when 'true'
    true.to_input_value
  when 'false'
    false.to_input_value
  when 'null'
    nil.to_input_value
  else
    name.to_sym.to_input_value
  end
end

.from_ruby(object) ⇒ Object 



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# File 'lib/graphlyte/syntax.rb', line 303

def self.from_ruby(object)
  object.to_input_value
rescue NoMethodError
  raise IllegalValue, object
end

Instance Method Details

#eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphlyte/syntax.rb', line 273

def eql?(other)
  return true if super
  return true if numeric_eql?(other)

  false
end

#floating? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphlyte/syntax.rb', line 291

def floating?
  return false unless number?
  return true if value.is_a?(Float)
  return true if value.is_a?(NumericLiteral) && value.floating?

  false
end

#inspect ⇒ Object Also known as: to_s 



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# File 'lib/graphlyte/syntax.rb', line 268

def inspect
  "#<#{self.class.name} @type=#{type} @value=#{value.inspect}>"
end

#number? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphlyte/syntax.rb', line 299

def number?
  type == :NUMBER
end

#numeric_eql?(other) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/graphlyte/syntax.rb', line 280

def numeric_eql?(other)
  return false unless number?
  return false unless other&.number?

  if floating? || other.floating?
    (value.to_f - other.value.to_f) < Float::EPSILON
  else
    value.to_i == other.value.to_i
  end
end