class Prism::ConstantPathOperatorWriteNode
Represents assigning to a constant path using an operator that isn’t ‘=`.
Parent::Child += value ^^^^^^^^^^^^^^^^^^^^^^
Attributes
attr_reader binary_operator
: Symbol
attr_reader target: ConstantPathNode
attr_reader value: Prism::node
Public Class Methods
def initialize: (ConstantPathNode
target, Location
binary_operator_loc
, Prism::node value, Symbol binary_operator
, Location
location) -> void
# File prism/node.rb, line 5018 def initialize(source, target, binary_operator_loc, value, binary_operator, location) @source = source @location = location @target = target @binary_operator_loc = binary_operator_loc @value = value @binary_operator = binary_operator 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 5105 def self.type :constant_path_operator_write_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 5111 def ===(other) other.is_a?(ConstantPathOperatorWriteNode) && (target === other.target) && (binary_operator_loc.nil? == other.binary_operator_loc.nil?) && (value === other.value) && (binary_operator === other.binary_operator) end
def accept: (Visitor
visitor) -> void
# File prism/node.rb, line 5028 def accept(visitor) visitor.visit_constant_path_operator_write_node(self) end
attr_reader binary_operator_loc
: Location
# File prism/node.rb, line 5064 def binary_operator_loc location = @binary_operator_loc return location if location.is_a?(Location) @binary_operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF) end
def child_nodes
: () -> Array[nil | Node]
# File prism/node.rb, line 5033 def child_nodes [target, value] end
def comment_targets
: () -> Array[Node | Location]
# File prism/node.rb, line 5043 def comment_targets [target, binary_operator_loc, value] #: Array[Prism::node | Location] end
def compact_child_nodes
: () -> Array
# File prism/node.rb, line 5038 def compact_child_nodes [target, value] end
def copy: (?target: ConstantPathNode
, ?binary_operator_loc: Location
, ?value: Prism::node, ?binary_operator: Symbol, ?location: Location
) -> ConstantPathOperatorWriteNode
# File prism/node.rb, line 5048 def copy(target: self.target, binary_operator_loc: self.binary_operator_loc, value: self.value, binary_operator: self.binary_operator, location: self.location) ConstantPathOperatorWriteNode.new(source, target, binary_operator_loc, value, binary_operator, location) end
def deconstruct_keys
: (Array keys) -> { target: ConstantPathNode
, binary_operator_loc
: Location
, value: Prism::node, binary_operator
: Symbol, location: Location
}
# File prism/node.rb, line 5056 def deconstruct_keys(keys) { target: target, binary_operator_loc: binary_operator_loc, value: value, binary_operator: binary_operator, location: location } end
def inspect -> String
# File prism/node.rb, line 5077 def inspect InspectVisitor.compose(self) end
Returns the binary operator used to modify the receiver. This method is deprecated in favor of binary_operator
.
# File prism/node_ext.rb, line 355 def operator deprecated("binary_operator") binary_operator end
Returns the location of the binary operator used to modify the receiver. This method is deprecated in favor of binary_operator_loc
.
# File prism/node_ext.rb, line 362 def operator_loc deprecated("binary_operator_loc") binary_operator_loc 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 5095 def type :constant_path_operator_write_node end