Class: SCSSLint::Linter::PlaceholderInExtend

Inherits:
SCSSLint::Linter
  • Object
show all
Includes:
SCSSLint::LinterRegistry
Defined in:
lib/scss_lint/linter/placeholder_in_extend.rb

Overview

Checks that ‘@extend` is always used with a placeholder selector.

Constant Summary

Constants included from Utils

Utils::COLOR_REGEX

Instance Attribute Summary

Attributes inherited from SCSSLint::Linter

#config, #engine, #lints

Instance Method Summary collapse

Methods included from SCSSLint::LinterRegistry

extract_linters_from, included

Methods inherited from SCSSLint::Linter

inherited, #initialize, #name, #run

Methods included from Utils

#color?, #color_hex?, #color_keyword?, #color_keyword_to_code, #else_node?, #extract_string_selectors, #node_ancestor, #node_siblings, #pluralize, #previous_node, #remove_quoted_strings, #same_position?

Methods included from SelectorVisitor

#visit_selector

Constructor Details

This class inherits a constructor from SCSSLint::Linter

Instance Method Details

#visit_extend(node) ⇒ Object 



6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
 
# File 'lib/scss_lint/linter/placeholder_in_extend.rb', line 6

def visit_extend(node)
  # Ignore if it cannot be statically determined that this selector is a
  # placeholder since its prefix is dynamically generated
  return if node.selector.first.is_a?(Sass::Script::Tree::Node)

  # The array returned by the parser is a bit awkward in that it splits on
  # every word boundary (so %placeholder becomes ['%', 'placeholder']).
  selector = node.selector.join

  # Ignore if this is a placeholder
  return if selector.start_with?('%')

  add_lint(node, 'Prefer using placeholder selectors (e.g. ' \
                 '%some-placeholder) with @extend')
end