Typo in the Code Snippet

[ali-p-q]

Section 3.8.1 of the book, titled Closures, has this code snippet:

fun addPair(a, b) {
  return a + b;
}

fun identity(a) {
  return a;
}

print identity(addPair)(1, 2); // Prints "3".

I believe the last line should have been typed:

print identity(addPair(1, 2)); // Prints "3".

Source code file/line: https://github.com/munificent/craftinginterpreters/blame/master/book/the-lox-language.md#L631

[Runrioter]

addPair is a first-class function.

[kandersen]

Duplicate of #852 . Thought I had explained this once already :)

[munificent]

Yes, as #852 states, this code is correct (though a little unusual).