ClosureExpression

class ClosureExpression(*args, **kwargs)

Superclasses: Expression

An expression using a custom GClosure to compute the value from its parameters.

Constructors

class ClosureExpression

classmethod new(value_type: GType, closure: Closure, params: list[Expression] | None = None) → ClosureExpression

Creates a GtkExpression that calls closure when it is evaluated.

closure is called with the this object and the results of evaluating the params expressions.

Parameters:

• value_type – the type of the value that this expression evaluates to

• closure – closure to call when evaluating this expression. If closure is floating, it is adopted

• params – expressions for each parameter