class Prism::UndefNode
表示 undef 关键字的使用。
undef :foo, :bar, :baz ^^^^^^^^^^^^^^^^^^^^^^
属性
attr_reader names: Array[SymbolNode | InterpolatedSymbolNode]
Public Class Methods
Source
# File lib/prism/node.rb, line 17648 def initialize(source, node_id, location, flags, names, keyword_loc) @source = source @node_id = node_id @location = location @flags = flags @names = names @keyword_loc = keyword_loc end
初始化一个新的 UndefNode 节点。
Source
# File lib/prism/node.rb, line 17722 def self.type :undef_node end
返回此节点类型的符号表示。参见 Node::type。
Public Instance Methods
Source
# File lib/prism/node.rb, line 17728 def ===(other) other.is_a?(UndefNode) && (names.length == other.names.length) && names.zip(other.names).all? { |left, right| left === right } && (keyword_loc.nil? == other.keyword_loc.nil?) end
实现节点的相等性判断。这实际上是 ==,但不比较 location 的值。仅检查 location 是否存在。
Source
# File lib/prism/node.rb, line 17658 def accept(visitor) visitor.visit_undef_node(self) end
def accept: (Visitor visitor) -> void
Source
# File lib/prism/node.rb, line 17663 def child_nodes [*names] end
def child_nodes: () -> Array
也称为: deconstruct
Source
# File lib/prism/node.rb, line 17673 def comment_targets [*names, keyword_loc] #: Array[Prism::node | Location] end
def comment_targets: () -> Array[Node | Location]
Source
# File lib/prism/node.rb, line 17668 def compact_child_nodes [*names] end
def compact_child_nodes: () -> Array
Source
# File lib/prism/node.rb, line 17678 def copy(node_id: self.node_id, location: self.location, flags: self.flags, names: self.names, keyword_loc: self.keyword_loc) UndefNode.new(source, node_id, location, flags, names, keyword_loc) end
Source
# File lib/prism/node.rb, line 17686 def deconstruct_keys(keys) { node_id: node_id, location: location, names: names, keyword_loc: keyword_loc } end
def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, names: Array[SymbolNode | InterpolatedSymbolNode], keyword_loc: Location }
Source
# File lib/prism/node.rb, line 17712 def inspect InspectVisitor.compose(self) end
def inspect -> String
Source
# File lib/prism/node.rb, line 17707 def keyword keyword_loc.slice end
def keyword: () -> String
Source
# File lib/prism/node.rb, line 17694 def keyword_loc location = @keyword_loc return location if location.is_a?(Location) @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF) end
attr_reader keyword_loc: Location
Source
# File lib/prism/node.rb, line 17702 def save_keyword_loc(repository) repository.enter(node_id, :keyword_loc) end
使用给定的已保存源保存 keyword_loc 位置,以便稍后检索。