Language Design: Naming Conventions

List(1, 2, 3)

Array(12.3, 45.6)

Set("a", "b", "c")

• primary way of construction
• resulting instance contains provided arguments verbatim

• secondary way of construction
• resulting instance contains provided arguments verbatim
• result type might use Option or Result types to encode failures

Person.from(personEntity)

Person.from(family)

• tertiary way of construction
• arguments are extracted, adapted, and/or converted
• the value of the instance is derived from the provided arguments
• result type is likely to use Option or Result types to encode failures

Person.parse(string)

Int64.parse(string)

• quaternary way of construction
• argument is parsed from a less structured representation, such as strings
• result type is highly likely to use Option or Result types to encode failures

person.withAge(23)

person.with(age = 23)

• returns a copy of a value with parts replaced by the provided argument