How to check if a method exists for a specific type?

Question

UPDATE: Thanks to @ rickhg12s for indicating that it appears, I may have come across an error. method_exists(<, (MyType, MyType))returns trueand method_exists(isless, (MyType, MyType))returns false. I'm on v0.3.x, but @ rickhg12s is on the nightly build v0.4, so I will write about the problem.

How to check if a method exists for a specific type?

I thought I could do this, for example:

method_exists(<, (Int, Int))

which will return truebecause less than comparison is defined for two integers. However, when I define my own type:

type MyType; end

and then try:

method_exists(<, (MyType, MyType))

he returns true. But I thought he would return false, since:

a = MyType()
a < a

throws an error because it is <not defined for MyType. So, how can I detect at runtime, is there a method for this type?

Answer 1

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