class Prism::ForwardingSuperNode
Represents the use of the ‘super` keyword without parentheses or arguments.
super ^^^^^
Attributes
attr_reader block: BlockNode
?
Public Class Methods
Similar to type
, this method returns a symbol that you can use for splitting on the type of the node without having to do a long === chain. Note that like type
, it will still be slower than using == for a single class, but should be faster in a case statement or an array comparison.
def self.type: () -> Symbol
# File prism/node.rb, line 7505 def self.type :forwarding_super_node end
Public Instance Methods
Implements case-equality for the node. This is effectively == but without comparing the value of locations. Locations are checked only for presence.
# File prism/node.rb, line 7511 def ===(other) other.is_a?(ForwardingSuperNode) && (block === other.block) end
def accept: (Visitor
visitor) -> void
# File prism/node.rb, line 7439 def accept(visitor) visitor.visit_forwarding_super_node(self) end
def child_nodes
: () -> Array[nil | Node]
# File prism/node.rb, line 7444 def child_nodes [block] end
def comment_targets
: () -> Array[Node | Location]
# File prism/node.rb, line 7456 def comment_targets [*block] #: Array[Prism::node | Location] end
def compact_child_nodes
: () -> Array
# File prism/node.rb, line 7449 def compact_child_nodes compact = [] #: Array[Prism::node] compact << block if block compact end
def copy: (?block: BlockNode
?, ?location: Location
) -> ForwardingSuperNode
# File prism/node.rb, line 7461 def copy(block: self.block, location: self.location) ForwardingSuperNode.new(source, block, location) end
def deconstruct_keys
: (Array keys) -> { block: BlockNode
?, location: Location
}
# File prism/node.rb, line 7469 def deconstruct_keys(keys) { block: block, location: location } end
def inspect -> String
# File prism/node.rb, line 7477 def inspect InspectVisitor.compose(self) end
Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform. Usually this is done by calling ‘[cls1, cls2].include?(node.class)` or putting the node into a case statement and doing `case node; when cls1; when cls2; end`. Both of these approaches are relatively slow because of the constant lookups, method calls, and/or array allocations.
Instead, you can call type
, which will return to you a symbol that you can use for comparison. This is faster than the other approaches because it uses a single integer comparison, but also because if you’re on CRuby you can take advantage of the fact that case statements with all symbol keys will use a jump table.
def type: () -> Symbol
# File prism/node.rb, line 7495 def type :forwarding_super_node end