GitLab

Created by: huntergoldstein

Problem

Everything is, by default, an Array when expanding strings. For example, the expression

$(foo bar baz)

is supposed to expand to a string, but currently this expands to a one element array. There are plenty of other similar cases, for example "" expanding to the empty array versus the empty string.

Solution

Introduce a true value type, something like:

enum Value {
  String(SmallString)
  Array(SmallVec<Value>)
}

Considerations

• Expressions such as foo @bar, where bar = [0 1 2 ...] currently expand to foo 0 1 2 ... with each element of bar becoming an argument to foo and foo "@bar" for passing bar itself as an argument.
  • Perhaps we have explicit array passing here with foo [@bar]
• Typed function arguments: do we want to add bool and int types? Also see #480 (closed).