class Prism::OrNode
Represents the use of the ‘||` operator or the `or` keyword.
left or right ^^^^^^^^^^^^^
Attributes
Represents the left side of the expression. It can be any [non-void expression](github.com/ruby/prism/blob/main/docs/parsing_rules.md#non-void-expression).
left or right ^^^^ 1 || 2 ^
Represents the right side of the expression. It can be any [non-void expression](github.com/ruby/prism/blob/main/docs/parsing_rules.md#non-void-expression).
left || right ^^^^^ 1 or 2 ^
Public Class Methods
def initialize: (Prism::node left, Prism::node right, Location
operator_loc
, Location
location) -> void
# File lib/prism/node.rb, line 14144 def initialize(source, left, right, operator_loc, location) @source = source @newline = false @location = location @left = left @right = right @operator_loc = operator_loc 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 lib/prism/node.rb, line 14255 def self.type :or_node end
Public Instance Methods
def accept: (Visitor
visitor) -> void
# File lib/prism/node.rb, line 14154 def accept(visitor) visitor.visit_or_node(self) end
def child_nodes
: () -> Array[nil | Node]
# File lib/prism/node.rb, line 14159 def child_nodes [left, right] end
def comment_targets
: () -> Array[Node | Location]
# File lib/prism/node.rb, line 14169 def comment_targets [left, right, operator_loc] #: Array[Prism::node | Location] end
def compact_child_nodes
: () -> Array
# File lib/prism/node.rb, line 14164 def compact_child_nodes [left, right] end
def copy: (?left: Prism::node, ?right: Prism::node, ?operator_loc: Location
, ?location: Location
) -> OrNode
# File lib/prism/node.rb, line 14174 def copy(left: self.left, right: self.right, operator_loc: self.operator_loc, location: self.location) OrNode.new(source, left, right, operator_loc, location) end
def deconstruct_keys
: (Array keys) -> { left: Prism::node, right: Prism::node, operator_loc
: Location
, location: Location
}
# File lib/prism/node.rb, line 14182 def deconstruct_keys(keys) { left: left, right: right, operator_loc: operator_loc, location: location } end
def inspect(NodeInspector inspector) -> String
# File lib/prism/node.rb, line 14221 def inspect(inspector = NodeInspector.new) inspector << inspector.header(self) inspector << "├── left:\n" inspector << inspector.child_node(left, "│ ") inspector << "├── right:\n" inspector << inspector.child_node(right, "│ ") inspector << "└── operator_loc: #{inspector.location(operator_loc)}\n" inspector.to_str end
def operator: () -> String
# File lib/prism/node.rb, line 14216 def operator operator_loc.slice end
The location of the ‘or` keyword or the `||` operator.
left or right ^^
# File lib/prism/node.rb, line 14208 def operator_loc location = @operator_loc return location if location.is_a?(Location) @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF) 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 lib/prism/node.rb, line 14245 def type :or_node end