keywords.md

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⬅ 3 📚 Specification

3.2 Keywords

The following is a list of all the keywords in the language.

Imports

Keyword	Use
from	Specify where to import from
import	Specify what to import
as	Specify alias of import

Classes

Keyword	Use
type	When constructing an interface (abstract base class) or type alias
class	Denote a class
isa	Check whether an object is instance of a class
when	Conditional types

Classes and Utils

Keyword	Use
self	Refer to definitions of this class
init	The constructor of the class
forward	Forwarding methods of contained class

Definitions and Functions

Keyword	Use
def	Denote definition
fin	Denote defined variable is immutable
pure	Denote function is pure

Boolean operators

Keyword	Use
not	Negation of a boolean value
and	And operator
or	Or operator
is	Check whether an instance is another instance

Mathematical Operators

Keyword	Use
mod	Modulus operator
sqrt	Square root operator

Control flow Expressions

Keyword	Use
if	Denote start of if expression or statement
then	Denote start of then branch of if
else	Denote start of else branch of if
match	Denote start of a match expression or statement

Control Flow Statements

Keyword	Use
while	Denote start of while statement
for	Denote start of for statement
in	Specify which collection to iterate over in for statement
do	Specify what needs to be done in control flow statement
continue	Continue onto next iteration within loop
break	Exit loop

Statements

Keyword	Use
return	Return from a function or method
pass	Empty placeholder statement