Limits

Current boundary:

• the type[][.range(...)] limit surfaces are not implemented in the current compiler
• everything below describes intended design, not current behavior; limits are later design work, not part of the current compiler surface

Limiting is a syntactic way to set boundaries for variables. The way FOL does is by using [] right after the type declaration type[], so: type[options][limits]

Initger limiting

Example, making a intiger variable have only numbers from 0 to 255 that represents an RGB value for a single color:

var rgb: int[][.range(255)];

Character limiting

It works with strings too, say we want a string that can should be of a particular form, for example an email:

var email: str[][.regex('[._a-z0-9]+@[a-z.]+')]