==(other)
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def ==(other)
other.is_a?(Intersection) && other.types == types
end
each_type(&block)
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def each_type(&block)
if block
types.each(&block)
else
enum_for :each_type
end
end
eql?(other)
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free_variables(set = Set.new)
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def free_variables(set = Set.new)
set.tap do
types.each do |type|
type.free_variables set
end
end
end
hash()
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def hash
self.class.hash ^ types.hash
end
map_type(&block)
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def map_type(&block)
if block
Intersection.new(types: types.map(&block), location: location)
else
enum_for :map_type
end
end
map_type_name(&block)
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def map_type_name(&block)
Intersection.new(
types: types.map {|type| type.map_type_name(&block) },
location: location
)
end
sub(s)
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def sub(s)
self.class.new(types: types.map {|ty| ty.sub(s) },
location: location)
end
to_json(*a)
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def to_json(*a)
{ class: :intersection, types: types, location: location }.to_json(*a)
end
to_s(level = 0)
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def to_s(level = 0)
strs = types.map {|ty| ty.to_s(2) }
if level > 0
"(#{strs.join(" & ")})"
else
strs.join(" & ")
end
end