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oop + generics in crystal
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abstract class QamAbstract | |
def initialize() | |
@forward–deps = [] of QamAbstract | |
end | |
end | |
class Qam(T) < QamAbstract | |
def initialize() | |
super() | |
@values = [] of T | |
end | |
end | |
class FooTestQam(T) < Qam(T) | |
end | |
class Mul(A, B) < Qam(A) | |
def initialize(a: Qam(A), b: Qam(B)) | |
super() | |
@s1 = a | |
@s2 = b | |
end | |
end | |
def *(a: Qam(A), b: Qam(B)) | |
Mul.new(a, b) | |
end | |
class Qam(T) < QamAbstract | |
def *(a) | |
Mul.new(self, a) | |
end | |
end | |
c–thing32 = FooTestQam(Float32).new | |
c–thing64 = FooTestQam(Float64).new | |
d–thing = Mul.new c–thing64, c–thing32 | |
d–thing2 = c–thing32 * c–thing64 | |
d–thing3 = d–thing * c–thing64 |
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