class Prism::IntegerNode
Represents an integer number literal.
1 ^
Attributes
protected 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 10709 def self.type :integer_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 lib/prism/node.rb, line 10715 def ===(other) other.is_a?(IntegerNode) && (flags === other.flags) && (value === other.value) end
def accept: (Visitor
visitor) -> void
# File lib/prism/node.rb, line 10621 def accept(visitor) visitor.visit_integer_node(self) end
def binary?: () -> bool
# File lib/prism/node.rb, line 10661 def binary? flags.anybits?(IntegerBaseFlags::BINARY) end
def child_nodes
: () -> Array[nil | Node]
# File lib/prism/node.rb, line 10626 def child_nodes [] end
def comment_targets
: () -> Array[Node | Location]
# File lib/prism/node.rb, line 10636 def comment_targets [] #: Array[Prism::node | Location] end
def compact_child_nodes
: () -> Array
# File lib/prism/node.rb, line 10631 def compact_child_nodes [] end
def copy: (?flags: Integer
, ?value: Integer
, ?location: Location
) -> IntegerNode
# File lib/prism/node.rb, line 10641 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 10666 def decimal? flags.anybits?(IntegerBaseFlags::DECIMAL) end
def deconstruct_keys
: (Array keys) -> { flags: Integer
, value: Integer
, location: Location
}
# File lib/prism/node.rb, line 10649 def deconstruct_keys(keys) { flags: flags, value: value, location: location } end
def hexadecimal?: () -> bool
# File lib/prism/node.rb, line 10676 def hexadecimal? flags.anybits?(IntegerBaseFlags::HEXADECIMAL) end
def inspect -> String
# File lib/prism/node.rb, line 10681 def inspect InspectVisitor.compose(self) end
def octal?: () -> bool
# File lib/prism/node.rb, line 10671 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 10699 def type :integer_node end