ForEach Loops

Sydrogen supports ForEach loops that iterate over a collection.

Basic syntax:

ForEach (type item in collection)
{
    // body
}

Example:

Array[Int] nums = {1, 2, 3, 4, 5};

ForEach (Int num in nums)
{
    Print(num);
}

A ForEach loop has two parts:

1. type item - declares the loop variable and its type.
2. collection - the collection being iterated.

The loop variable is in scope only inside the loop body. It is not in scope while the collection expression is being evaluated.

The collection must be an Array or List. A type mismatch produces a semantic error.

Skip continues with the next iteration of the loop. Stop exits the current loop. Skip can only be used inside a loop.

A ForEach loop without braces produces an error.

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