Class: Sass::Selector::AbstractSequence

Inherits:
Object
  • Object
show all
Defined in:
lib/sass/selector/abstract_sequence.rb

Overview

The abstract parent class of the various selector sequence classes.

All subclasses should implement a members method that returns an array of object that respond to #line= and #filename=, as well as a to_a method that returns an array of strings and script nodes.

Direct Known Subclasses

CommaSequence, Sequence, SimpleSequence

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#filename ⇒ String?

The name of the file in which this selector was declared.

Returns:

  • (String, nil) 


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# File 'lib/sass/selector/abstract_sequence.rb', line 17

def filename
  @filename
end

#line ⇒ Fixnum

The line of the Sass template on which this selector was declared.

Returns:

  • (Fixnum) 


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# File 'lib/sass/selector/abstract_sequence.rb', line 12

def line
  @line
end

Instance Method Details

#_specificity(arr) (protected) 



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# File 'lib/sass/selector/abstract_sequence.rb', line 87

def _specificity(arr)
  spec = 0
  arr.map {|m| spec += m.is_a?(String) ? 0 : m.specificity}
  spec
end

#eql?(other) ⇒ Boolean Also known as: ==

Checks equality between this and another object.

Subclasses should define #_eql? rather than overriding this method, which handles checking class equality and hash equality.

Parameters:

  • other (Object) —

    The object to test equality against

Returns:

  • (Boolean) —

    Whether or not this is equal to other



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# File 'lib/sass/selector/abstract_sequence.rb', line 57

def eql?(other)
  other.class == self.class && other.hash == self.hash && _eql?(other)
end

#has_placeholder? ⇒ Boolean

Whether or not this selector sequence contains a placeholder selector. Checks recursively.

Returns:

  • (Boolean) 


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# File 'lib/sass/selector/abstract_sequence.rb', line 64

def has_placeholder?
  @has_placeholder ||=
    members.any? {|m| m.is_a?(AbstractSequence) ? m.has_placeholder? : m.is_a?(Placeholder)}
end

#hash ⇒ Fixnum

Returns a hash code for this sequence.

Subclasses should define #_hash rather than overriding this method, which automatically handles memoizing the result.

Returns:

  • (Fixnum) 


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# File 'lib/sass/selector/abstract_sequence.rb', line 46

def hash
  @_hash ||= _hash
end

#specificity ⇒ Fixnum

Returns the specificity of the selector as an integer. The base is given by SPECIFICITY_BASE.

Returns:

  • (Fixnum) 


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# File 'lib/sass/selector/abstract_sequence.rb', line 81

def specificity
  _specificity(members)
end

#to_s ⇒ String

Converts the selector into a string. This is the standard selector string, along with any SassScript interpolation that may exist.

Returns:

  • (String) 


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# File 'lib/sass/selector/abstract_sequence.rb', line 73

def to_s
  to_a.map {|e| e.is_a?(Sass::Script::Node) ? "\#{#{e.to_sass}}" : e}.join
end