Virgil Language Reference: keywords

This reference page contains a complete listing of the keywords in the Virgil language. As keywords are added to the language, they are tracked separately.

Virgil I-01

The initial version of the Virgil language, version I-01, defines the following set of keywords:

• and - operator. Denotes the logical and operation on booleans.
• atomic - statement. Reserved for future language additions.
• break - statement. Breaks out of the nearest enclosing loop.
• class - declarator. Begins the declaration of a named class.
• component - declarator. Begins the declaration of a named component.
• constructor - declarator. Begins the declaration of the constructor method for a class or component.
• continue - statement. Returns the beginning of the nearest enclosing loop.
• default - switch case. Denotes the default case of a switch statement.
• do - loop statement. Begins a do...while loop.
• else - control statement. Defines the optional else branch of an if statement.
• extends - declarator. Defines the parent class for the current class being declared.
• field - declarator. Begins the declaration of a field in a class or component.
• for - loop statement. Begins the declaration of a for loop.
• function - type constructor. Begins the declaration of a delegate type.
• if - control statement. Begins the declaration of an if statement.
• instanceof - operator. Denotes a dynamic type query operation on an object.
• local - declarator. Begins the declaration of a local variable within a method.
• method - declarator. Begins the declaration of a method in a class or component.
• new - operator. Denotes allocation of a class or array.
• or - operator. Denotes the logical or operation on booleans.
• private - modifier. Denotes that the declared field or method is private.
• return - statement. Causes control to return out of the current method to the called method, with specified return value (if any).
• super - statement. Performs a call to the constructor of this class's super class before executing the current constructor.
• switch - control statement. Branches to one of several case bodies.
• this - expression. Denotes the this parameter of an instance method of a class.
• while - loop statement. Denotes a while loop.
• program - declarator. Begins master program declaration.
• module - declarator. Reserved for future language additions.
• entrypoint - declarator. Declares a named entrypoint into the program.
• components - declarator. Declares the included components of a program.