class Sass::Util::NormalizedMap
A hash that normalizes its string keys while still allowing you to get back to the original keys that were stored. If several different values normalize to the same value, whichever is stored last wins.
Public Class Methods
new(map = nil)
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Create a normalized map
# File lib/sass/util/normalized_map.rb, line 10 def initialize(map = nil) @key_strings = {} @map = {} map.each {|key, value| self[key] = value} if map end
Public Instance Methods
[](k)
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@private
# File lib/sass/util/normalized_map.rb, line 42 def [](k) @map[normalize(k)] end
[]=(k, v)
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@private
# File lib/sass/util/normalized_map.rb, line 34 def []=(k, v) normalized = normalize(k) @map[normalized] = v @key_strings[normalized] = k v end
as_stored()
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@return [Hash] Hash with the keys as they were stored (before normalization).
# File lib/sass/util/normalized_map.rb, line 59 def as_stored Sass::Util.map_keys(@map) {|k| @key_strings[k]} end
delete(k)
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@private
# File lib/sass/util/normalized_map.rb, line 52 def delete(k) normalized = normalize(k) @key_strings.delete(normalized) @map.delete(normalized) end
denormalize(key)
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Returns the version of ‘key` as it was stored before normalization. If `key` isn’t in the map, returns it as it was passed in.
@return [String]
# File lib/sass/util/normalized_map.rb, line 29 def denormalize(key) @key_strings[normalize(key)] || key end
dup()
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Calls superclass method
# File lib/sass/util/normalized_map.rb, line 95 def dup d = super d.send(:instance_variable_set, "@map", @map.dup) d end
each() { |k, v| ... }
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# File lib/sass/util/normalized_map.rb, line 75 def each @map.each {|k, v| yield(k, v)} end
empty?()
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# File lib/sass/util/normalized_map.rb, line 63 def empty? @map.empty? end
has_key?(k)
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@private
# File lib/sass/util/normalized_map.rb, line 47 def has_key?(k) @map.has_key?(normalize(k)) end
keys()
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# File lib/sass/util/normalized_map.rb, line 71 def keys @map.keys end
map() { |k, v| ... }
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# File lib/sass/util/normalized_map.rb, line 91 def map @map.map {|k, v| yield(k, v)} end
method_missing(method, *args, &block)
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# File lib/sass/util/normalized_map.rb, line 110 def method_missing(method, *args, &block) if Sass.tests_running raise ArgumentError.new("The method #{method} must be implemented explicitly") end @map.send(method, *args, &block) end
normalize(key)
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Specifies how to transform the key.
This can be overridden to create other normalization behaviors.
# File lib/sass/util/normalized_map.rb, line 20 def normalize(key) key.tr("-", "_") end
respond_to_missing?(method, include_private = false)
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# File lib/sass/util/normalized_map.rb, line 117 def respond_to_missing?(method, include_private = false) @map.respond_to?(method, include_private) end
size()
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# File lib/sass/util/normalized_map.rb, line 79 def size @map.size end
sort_by() { |k, v| ... }
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# File lib/sass/util/normalized_map.rb, line 101 def sort_by @map.sort_by {|k, v| yield k, v} end
to_a()
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# File lib/sass/util/normalized_map.rb, line 87 def to_a @map.to_a end
to_hash()
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# File lib/sass/util/normalized_map.rb, line 83 def to_hash @map.dup end
update(map)
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# File lib/sass/util/normalized_map.rb, line 105 def update(map) map = map.as_stored if map.is_a?(NormalizedMap) map.each {|k, v| self[k] = v} end
values()
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# File lib/sass/util/normalized_map.rb, line 67 def values @map.values end