Class: Literal

Inherits:
Expr
  • Object
show all
Defined in:
lib/lilit_sql.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Expr

#*, #+, #<, #<=, #>, #>=, #and, #asc, #desc, #eq, #in, #minus, #ne, #not, #plus

Constructor Details

#initialize(value) ⇒ Literal 



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# File 'lib/lilit_sql.rb', line 342

def initialize(value)
  @value = value
end

Instance Attribute Details

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/lilit_sql.rb', line 340

def value
  @value
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/lilit_sql.rb', line 362

def ==(other)
  other.class == self.class && other.state == state
end

#decl_sql ⇒ Object 



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# File 'lib/lilit_sql.rb', line 350

def decl_sql
  if @value.nil?
    'null'
  elsif @value.is_a?(Integer) || @value.is_a?(Float)
    @value.to_s
  elsif @value.is_a?(String)
    "'#{@value}'"
  else
    raise NotImplementedError, "Literal doesn't support render #{@value.class} (#{@value})"
  end
end

#ref_sql ⇒ Object 



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# File 'lib/lilit_sql.rb', line 346

def ref_sql
  decl_sql
end

#state ⇒ Object 



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# File 'lib/lilit_sql.rb', line 366

def state
  instance_variables.map { |variable| instance_variable_get variable }
end