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class Foo | |
attr_reader :v | |
def initialize(v) | |
@v = v | |
end | |
def hash | |
v.hash | |
end | |
def eql?(o) | |
puts "Foo#eql? called" | |
if o.is_a?(self.class) | |
o.v.eql?(v) | |
else | |
o.eql?(v) | |
end | |
end | |
end | |
h = {} | |
f = Foo.new('hello') | |
h[f] = 'world' | |
h['hello'] = 'jupiter' | |
p h[f] | |
p h['hello'] | |
p h |
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