/usr/lib/ruby/vendor_ruby/sass/script/value/list.rb is in ruby-sass 3.4.6-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 | module Sass::Script::Value
# A SassScript object representing a CSS list.
# This includes both comma-separated lists and space-separated lists.
class List < Base
# The Ruby array containing the contents of the list.
#
# @return [Array<Value>]
attr_reader :value
alias_method :to_a, :value
# The operator separating the values of the list.
# Either `:comma` or `:space`.
#
# @return [Symbol]
attr_reader :separator
# Creates a new list.
#
# @param value [Array<Value>] See \{#value}
# @param separator [Symbol] See \{#separator}
def initialize(value, separator)
super(value)
@separator = separator
end
# @see Value#options=
def options=(options)
super
value.each {|v| v.options = options}
end
# @see Value#eq
def eq(other)
Sass::Script::Value::Bool.new(
other.is_a?(List) && value == other.value &&
separator == other.separator)
end
def hash
@hash ||= [value, separator].hash
end
# @see Value#to_s
def to_s(opts = {})
raise Sass::SyntaxError.new("() isn't a valid CSS value.") if value.empty?
value.
reject {|e| e.is_a?(Null) || e.is_a?(List) && e.value.empty?}.
map {|e| e.to_s(opts)}.join(sep_str)
end
# @see Value#to_sass
def to_sass(opts = {})
return "()" if value.empty?
members = value.map do |v|
if element_needs_parens?(v)
"(#{v.to_sass(opts)})"
else
v.to_sass(opts)
end
end
return "(#{members.first},)" if members.length == 1 && separator == :comma
members.join(sep_str(nil))
end
# @see Value#to_h
def to_h
return Sass::Util.ordered_hash if value.empty?
super
end
# @see Value#inspect
def inspect
"(#{value.map {|e| e.inspect}.join(sep_str(nil))})"
end
# Asserts an index is within the list.
#
# @private
#
# @param list [Sass::Script::Value::List] The list for which the index should be checked.
# @param n [Sass::Script::Value::Number] The index being checked.
def self.assert_valid_index(list, n)
if !n.int? || n.to_i == 0
raise ArgumentError.new("List index #{n} must be a non-zero integer")
elsif list.to_a.size == 0
raise ArgumentError.new("List index is #{n} but list has no items")
elsif n.to_i.abs > (size = list.to_a.size)
raise ArgumentError.new(
"List index is #{n} but list is only #{size} item#{'s' if size != 1} long")
end
end
private
def element_needs_parens?(element)
if element.is_a?(List)
return false if element.value.empty?
precedence = Sass::Script::Parser.precedence_of(separator)
return Sass::Script::Parser.precedence_of(element.separator) <= precedence
end
return false unless separator == :space
return false unless element.is_a?(Sass::Script::Tree::UnaryOperation)
element.operator == :minus || element.operator == :plus
end
def sep_str(opts = options)
return ' ' if separator == :space
return ',' if opts && opts[:style] == :compressed
', '
end
end
end
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