class Prism::SuperNode
Represents the use of the ‘super` keyword with parentheses or arguments.
super() ^^^^^^^ super foo, bar ^^^^^^^^^^^^^^
Attributes
attr_reader arguments: ArgumentsNode
?
attr_reader block: Node
?
attr_reader keyword_loc
: Location
attr_reader lparen_loc
: Location
?
attr_reader rparen_loc
: Location
?
Public Class Methods
def initialize: (keyword_loc
: Location
, lparen_loc
: Location
?, arguments: ArgumentsNode
?, rparen_loc
: Location
?, block: Node
?, location: Location
) -> void
# File prism/node.rb, line 16026 def initialize(keyword_loc, lparen_loc, arguments, rparen_loc, block, location) @keyword_loc = keyword_loc @lparen_loc = lparen_loc @arguments = arguments @rparen_loc = rparen_loc @block = block @location = location end
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 16138 def self.type :super_node end
Public Instance Methods
def accept: (visitor: Visitor
) -> void
# File prism/node.rb, line 16036 def accept(visitor) visitor.visit_super_node(self) end
def child_nodes
: () -> Array[nil | Node]
# File prism/node.rb, line 16041 def child_nodes [arguments, block] end
def comment_targets
: () -> Array[Node | Location]
# File prism/node.rb, line 16054 def comment_targets [keyword_loc, *lparen_loc, *arguments, *rparen_loc, *block] end
def compact_child_nodes
: () -> Array
# File prism/node.rb, line 16046 def compact_child_nodes compact = [] compact << arguments if arguments compact << block if block compact end
def copy: (**params) -> SuperNode
# File prism/node.rb, line 16059 def copy(**params) SuperNode.new( params.fetch(:keyword_loc) { keyword_loc }, params.fetch(:lparen_loc) { lparen_loc }, params.fetch(:arguments) { arguments }, params.fetch(:rparen_loc) { rparen_loc }, params.fetch(:block) { block }, params.fetch(:location) { location }, ) end
def deconstruct_keys
: (keys: Array) -> Hash[Symbol, nil | Node
| Array | String | Token
| Array | Location]
# File prism/node.rb, line 16074 def deconstruct_keys(keys) { keyword_loc: keyword_loc, lparen_loc: lparen_loc, arguments: arguments, rparen_loc: rparen_loc, block: block, location: location } end
def inspect(inspector: NodeInspector) -> String
# File prism/node.rb, line 16094 def inspect(inspector = NodeInspector.new) inspector << inspector.header(self) inspector << "├── keyword_loc: #{inspector.location(keyword_loc)}\n" inspector << "├── lparen_loc: #{inspector.location(lparen_loc)}\n" if (arguments = self.arguments).nil? inspector << "├── arguments: ∅\n" else inspector << "├── arguments:\n" inspector << arguments.inspect(inspector.child_inspector("│ ")).delete_prefix(inspector.prefix) end inspector << "├── rparen_loc: #{inspector.location(rparen_loc)}\n" if (block = self.block).nil? inspector << "└── block: ∅\n" else inspector << "└── block:\n" inspector << block.inspect(inspector.child_inspector(" ")).delete_prefix(inspector.prefix) end inspector.to_str end
def keyword: () -> String
# File prism/node.rb, line 16079 def keyword keyword_loc.slice end
def lparen: () -> String?
# File prism/node.rb, line 16084 def lparen lparen_loc&.slice end
def rparen: () -> String?
# File prism/node.rb, line 16089 def rparen rparen_loc&.slice 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 16128 def type :super_node end