class Prism::IntegerNode
Represents an integer number literal.
1 ^
Public Class Methods
def initialize: (flags: Integer, location: Location
) -> void
# File prism/node.rb, line 9610 def initialize(flags, location) @flags = flags @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 9703 def self.type :integer_node end
Public Instance Methods
def accept: (visitor: Visitor
) -> void
# File prism/node.rb, line 9616 def accept(visitor) visitor.visit_integer_node(self) end
def binary?: () -> bool
# File prism/node.rb, line 9652 def binary? flags.anybits?(IntegerBaseFlags::BINARY) end
def child_nodes
: () -> Array[nil | Node]
# File prism/node.rb, line 9621 def child_nodes [] end
def comment_targets
: () -> Array[Node | Location]
# File prism/node.rb, line 9631 def comment_targets [] end
def compact_child_nodes
: () -> Array
# File prism/node.rb, line 9626 def compact_child_nodes [] end
def copy: (**params) -> IntegerNode
# File prism/node.rb, line 9636 def copy(**params) IntegerNode.new( params.fetch(:flags) { flags }, params.fetch(:location) { location }, ) end
def decimal?: () -> bool
# File prism/node.rb, line 9657 def decimal? flags.anybits?(IntegerBaseFlags::DECIMAL) end
def hexadecimal?: () -> bool
# File prism/node.rb, line 9667 def hexadecimal? flags.anybits?(IntegerBaseFlags::HEXADECIMAL) end
def inspect(inspector: NodeInspector) -> String
# File prism/node.rb, line 9672 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.to_str end
def octal?: () -> bool
# File prism/node.rb, line 9662 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 prism/node.rb, line 9693 def type :integer_node end
Returns the value of the node as a Ruby Integer.
# File prism/node_ext.rb, line 76 def value Integer(slice) end