How to check if a specific function exists within a Move module at a given address?

Question

Im trying to figure out how to check if a specific function exists within a Move module at a given address in Move smart contract language, and if it does, call that function dynamically. Heres my scenario: I have a vector or array of addresses, and I need to determine whether a particular address has a specific function. If it does, I want to call that function dynamically. Is there a way to achieve this in Move? Ive been struggling to find a solution, and any guidance would be greatly appreciated.

290697tz · Accepted Answer

Resolving dependencies at runtime, specifically checking for the existence of a function within a module dynamically, is not possible in Move. However, you can determine the existence of a specific resource at a particular address using exists(addr) (more details can be found in the documentation. It's important to note that the resource type T must be known at compile-time. Unfortunately, dynamically calling functions based on their existence within Move module at runtime is not supported in programming language.

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How to check if a specific function exists within a Move module at a given address?

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