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Let's say you write a function in Solidity:

contractB.doFunction()

It would then match it using the function signature to run the function in contractB. If there's not match, it would run the fallback function.

But if neither exists? What happens? Does it throw an error, or would you just expend the cost of the CALL?

Let's say you call a function at another contract in Solidity:

contractB.doFunction()

It would then match it using the function signature to run the function in contractB. If there's not match, it would run the fallback function.

But if neither exists? What happens? Does it throw an error, or would you just expend the cost of the CALL?

Let's say you write in Solidity:

contractB.doFunction()

It would then match it using the function signature to run the function in contractB. If there's not match, it would run the fallback function.

But if neither exists? What happens? Does it throw an error, or would you just expend the cost of the CALL?

Let's say you write a function in Solidity:

contractB.doFunction()

It would then match it using the function signature to run the function in contractB. If there's not match, it would run the fallback function.

But if neither exists? What happens? Does it throw an error, or would you just expend the cost of the CALL?