# Information about local variables in a running method
abstract class Frame
	# The current visited node
	# The node is stored by frame to keep a stack trace
	var current_node: ANode
	# The executed property.
	# A Method in case of a call, an attribute in case of a default initialization.
	var mpropdef: MPropDef
	# Arguments of the method (the first is the receiver)
	var arguments: Array[Instance]
	# Indicate if the expression has an array comprehension form
	var comprehension: nullable Array[Instance] = null
end