class Prism::AliasGlobalVariableNode

表示使用 `alias` 关键字来别名全局变量。

alias $foo $bar
^^^^^^^^^^^^^^^

属性

new_name [R]

表示别名后可以使用的全局变量的新名称。

alias $foo $bar
      ^^^^

old_name [R]

表示别名之前可以使用的全局变量的旧名称。

alias $foo $bar
           ^^^^

公共类方法

new (source, node_id, location, flags, new_name, old_name, keyword_loc)

源代码

# File lib/prism/node.rb, line 318
def initialize(source, node_id, location, flags, new_name, old_name, keyword_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @new_name = new_name
  @old_name = old_name
  @keyword_loc = keyword_loc
end

初始化一个新的 AliasGlobalVariableNode 节点。

type ()

源代码

# File lib/prism/node.rb, line 405
def self.type
  :alias_global_variable_node
end

返回此节点类型的符号表示形式。请参阅“Node::type”。

公共实例方法

=== (other)

源代码

# File lib/prism/node.rb, line 411
def ===(other)
  other.is_a?(AliasGlobalVariableNode) &&
    (new_name === other.new_name) &&
    (old_name === other.old_name) &&
    (keyword_loc.nil? == other.keyword_loc.nil?)
end

为节点实现 case-equality。这实际上是 ==，但不比较位置的值。仅检查位置是否存在。

accept (visitor)

源代码

# File lib/prism/node.rb, line 329
def accept(visitor)
  visitor.visit_alias_global_variable_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

源代码

# File lib/prism/node.rb, line 334
def child_nodes
  [new_name, old_name]
end

def child_nodes: () -> Array[nil | Node]

别名为：deconstruct

comment_targets ()

源代码

# File lib/prism/node.rb, line 344
def comment_targets
  [new_name, old_name, keyword_loc] #: Array[Prism::node | Location]
end

def comment_targets: () -> Array[Node | Location]

compact_child_nodes ()

源代码

# File lib/prism/node.rb, line 339
def compact_child_nodes
  [new_name, old_name]
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, new_name: self.new_name, old_name: self.old_name, keyword_loc: self.keyword_loc)

源代码

# File lib/prism/node.rb, line 349
def copy(node_id: self.node_id, location: self.location, flags: self.flags, new_name: self.new_name, old_name: self.old_name, keyword_loc: self.keyword_loc)
  AliasGlobalVariableNode.new(source, node_id, location, flags, new_name, old_name, keyword_loc)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?new_name: GlobalVariableReadNode | BackReferenceReadNode | NumberedReferenceReadNode, ?old_name: GlobalVariableReadNode | BackReferenceReadNode | NumberedReferenceReadNode | SymbolNode | MissingNode, ?keyword_loc: Location) -> AliasGlobalVariableNode

deconstruct ()

def deconstruct: () -> Array[nil | Node]

别名为：child_nodes

deconstruct_keys (keys)

源代码

# File lib/prism/node.rb, line 357
def deconstruct_keys(keys)
  { node_id: node_id, location: location, new_name: new_name, old_name: old_name, keyword_loc: keyword_loc }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, new_name: GlobalVariableReadNode | BackReferenceReadNode | NumberedReferenceReadNode, old_name: GlobalVariableReadNode | BackReferenceReadNode | NumberedReferenceReadNode | SymbolNode | MissingNode, keyword_loc: Location }

inspect ()

源代码

# File lib/prism/node.rb, line 395
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

keyword ()

源代码

# File lib/prism/node.rb, line 390
def keyword
  keyword_loc.slice
end

def keyword: () -> String

keyword_loc ()

源代码

# File lib/prism/node.rb, line 377
def keyword_loc
  location = @keyword_loc
  return location if location.is_a?(Location)
  @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

“alias” 关键字的位置。

alias $foo $bar
^^^^^

save_keyword_loc (repository)

源代码

# File lib/prism/node.rb, line 385
def save_keyword_loc(repository)
  repository.enter(node_id, :keyword_loc)
end

使用给定的已保存的源保存 keyword_loc 位置，以便稍后检索。

type ()

源代码

# File lib/prism/node.rb, line 400
def type
  :alias_global_variable_node
end

返回此节点类型的符号表示形式。请参阅“Node#type”。