ESCGrammarExprs.Unary

Description

Represents a unary expression; that is, an expression that requires only one operand and an operator that takes the operand as input. Examples include NOT, negative numbers.

Members

Methods

init

func init(operator: ESCToken, right: ESCGrammarExpr) -> void

Initialization method. Must be called after instantiation.

Parameters

Name	Type	Description	Required?
operator	`ESCToken`	Token representing the operator applied to the operands.	yes
right	`ESCGrammarExpr`	Right-hand operand expression.	yes

Returns

Returns nothing.

get_right

func get_right() -> ESCGrammarExpr

The sole operand of the unary expression.

Parameters

None.

Returns

Returns the sole operand of the unary expression. (ESCGrammarExpr)

get_operator

func get_operator() -> ESCToken

The operator the unary expression.

Parameters

None.

Returns

Returns the operator the unary expression. (ESCToken)

accept

func accept(visitor: Variant) -> Variant

Method to invoke visitor-specific code.

Parameters

Name	Type	Description	Required?
visitor	`Variant`	Visitor instance invoked to process this expression.	yes

Returns

Returns the result of visiting this unary expression. (Variant)