Class Sass::Selector::Simple
In: lib/sass/selector/simple.rb
Parent: Object

The abstract superclass for simple selectors (that is, those that don‘t compose multiple selectors).

Methods

==   eql?   equality_key   hash   inspect   to_s   unify   unify_namespaces  

Attributes

filename  [RW]  The name of the file in which this selector was declared, or `nil` if it was not declared in a file (e.g. on stdin).

@return [String, nil]

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

@return [Integer]

Public Instance methods

==(other)

Alias for eql?

Checks equality between this and another object.

By default, this is based on the value of \{to_a}, so if that contains information irrelevant to the identity of the selector, this should be overridden.

@param other [Object] The object to test equality against @return [Boolean] Whether or not this is equal to `other`

Returns a hash code for this selector object.

By default, this is based on the value of \{to_a}, so if that contains information irrelevant to the identity of the selector, this should be overridden.

@return [Integer]

@see to_s

@return [String]

Returns the selector string.

@param opts [Hash] rendering options. @option opts [Symbol] :style The css rendering style. @return [String]

Unifies this selector with a {SimpleSequence}’s {SimpleSequence#members members array}, returning another `SimpleSequence` members array that matches both this selector and the input selector.

By default, this just appends this selector to the end of the array (or returns the original array if this selector already exists in it).

@param sels [Array<Simple>] A {SimpleSequence}’s {SimpleSequence#members members array} @return [Array<Simple>, nil] A {SimpleSequence} {SimpleSequence#members members array}

  matching both `sels` and this selector,
  or `nil` if this is impossible (e.g. unifying `#foo` and `#bar`)

@raise [Sass::SyntaxError] If this selector cannot be unified.

  This will only ever occur when a dynamic selector,
  such as {Parent} or {Interpolation}, is used in unification.
  Since these selectors should be resolved
  by the time extension and unification happen,
  this exception will only ever be raised as a result of programmer error

Protected Instance methods

Returns the key used for testing whether selectors are equal.

This is a cached version of \{to_s}.

@return [String]

Unifies two namespaces, returning a namespace that works for both of them if possible.

@param ns1 [String, nil] The first namespace.

  `nil` means none specified, e.g. `foo`.
  The empty string means no namespace specified, e.g. `|foo`.
  `"*"` means any namespace is allowed, e.g. `*|foo`.

@param ns2 [String, nil] The second namespace. See `ns1`. @return [Array(String or nil, Boolean)]

  The first value is the unified namespace, or `nil` for no namespace.
  The second value is whether or not a namespace that works for both inputs
  could be found at all.
  If the second value is `false`, the first should be ignored.

[Validate]