Class: SCSSLint::Linter::ZeroUnit

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

Overview

Checks for unnecessary units on zero values.

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_script_funcall(node) ⇒ Object



25
26
27
28
29
# File 'lib/scss_lint/linter/zero_unit.rb', line 25

def visit_script_funcall(node)
  # Don't report errors for values within `calc` expressions, since they
  # require units in order to work
  yield unless node.name == 'calc'
end

#visit_script_number(node) ⇒ Object



18
19
20
21
22
23
# File 'lib/scss_lint/linter/zero_unit.rb', line 18

def visit_script_number(node)
  length = source_from_range(node.source_range)[ZERO_UNIT_REGEX, 1]
  return unless zero_with_length_units?(length)

  add_lint(node, MESSAGE_FORMAT % length)
end

#visit_script_string(node) ⇒ Object



8
9
10
11
12
13
14
15
16
# File 'lib/scss_lint/linter/zero_unit.rb', line 8

def visit_script_string(node)
  return unless node.type == :identifier
  return if node.value.start_with?('calc(')

  node.value.scan(ZERO_UNIT_REGEX) do |match|
    next unless zero_with_length_units?(match.first)
    add_lint(node, MESSAGE_FORMAT % match.first)
  end
end