class Prism::IntegerNode
Represents an integer number literal.
1 ^
Attributes
private attr_reader flags: Integer
The value of the integer literal as a number.
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 lib/prism/node.rb, line 10490 def self.type :integer_node end
Public Instance Methods
def accept: (Visitor
visitor) -> void
# File lib/prism/node.rb, line 10397 def accept(visitor) visitor.visit_integer_node(self) end
def binary?: () -> bool
# File lib/prism/node.rb, line 10438 def binary? flags.anybits?(IntegerBaseFlags::BINARY) end
def child_nodes
: () -> Array[nil | Node]
# File lib/prism/node.rb, line 10402 def child_nodes [] end
def comment_targets
: () -> Array[Node | Location]
# File lib/prism/node.rb, line 10412 def comment_targets [] #: Array[Prism::node | Location] end
def compact_child_nodes
: () -> Array
# File lib/prism/node.rb, line 10407 def compact_child_nodes [] end
def copy: (?flags: Integer
, ?value: Integer
, ?location: Location
) -> IntegerNode
# File lib/prism/node.rb, line 10417 def copy(flags: self.flags, value: self.value, location: self.location) IntegerNode.new(source, flags, value, location) end
def decimal?: () -> bool
# File lib/prism/node.rb, line 10443 def decimal? flags.anybits?(IntegerBaseFlags::DECIMAL) end
def deconstruct_keys
: (Array keys) -> { flags: Integer
, value: Integer
, location: Location
}
# File lib/prism/node.rb, line 10425 def deconstruct_keys(keys) { flags: flags, value: value, location: location } end
def hexadecimal?: () -> bool
# File lib/prism/node.rb, line 10453 def hexadecimal? flags.anybits?(IntegerBaseFlags::HEXADECIMAL) end
def inspect(NodeInspector inspector) -> String
# File lib/prism/node.rb, line 10458 def inspect(inspector = NodeInspector.new) inspector << inspector.header(self) flags = [("binary" if binary?), ("decimal" if decimal?), ("octal" if octal?), ("hexadecimal" if hexadecimal?)].compact inspector << "├── flags: #{flags.empty? ? "∅" : flags.join(", ")}\n" inspector << "└── value: #{value.inspect}\n" inspector.to_str end
def octal?: () -> bool
# File lib/prism/node.rb, line 10448 def octal? flags.anybits?(IntegerBaseFlags::OCTAL) 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 10480 def type :integer_node end