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class Bundler::Thor
module CoreExt #:nodoc:
# A hash with indifferent access and magic predicates.
#
# hash = Bundler::Thor::CoreExt::HashWithIndifferentAccess.new 'foo' => 'bar', 'baz' => 'bee', 'force' => true
#
# hash[:foo] #=> 'bar'
# hash['foo'] #=> 'bar'
# hash.foo? #=> true
#
class HashWithIndifferentAccess < ::Hash #:nodoc:
def initialize(hash = {})
super()
hash.each do |key, value|
self[convert_key(key)] = value
end
end
def [](key)
super(convert_key(key))
end
def []=(key, value)
super(convert_key(key), value)
end
def delete(key)
super(convert_key(key))
end
def fetch(key, *args)
super(convert_key(key), *args)
end
def key?(key)
super(convert_key(key))
end
def values_at(*indices)
indices.map { |key| self[convert_key(key)] }
end
def merge(other)
dup.merge!(other)
end
def merge!(other)
other.each do |key, value|
self[convert_key(key)] = value
end
self
end
def reverse_merge(other)
self.class.new(other).merge(self)
end
def reverse_merge!(other_hash)
replace(reverse_merge(other_hash))
end
def replace(other_hash)
super(other_hash)
end
# Convert to a Hash with String keys.
def to_hash
Hash.new(default).merge!(self)
end
protected
def convert_key(key)
key.is_a?(Symbol) ? key.to_s : key
end
# Magic predicates. For instance:
#
# options.force? # => !!options['force']
# options.shebang # => "/usr/lib/local/ruby"
# options.test_framework?(:rspec) # => options[:test_framework] == :rspec
#
def method_missing(method, *args)
method = method.to_s
if method =~ /^(\w+)\?$/
if args.empty?
!!self[$1]
else
self[$1] == args.first
end
else
self[method]
end
end
end
end
end
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