类 Prism::GlobalVariableReadNode

表示引用全局变量。

$foo
^^^^

属性

name [R]

全局变量的名称，它是 ‘$` 后跟一个[标识符](github.com/ruby/prism/blob/main/docs/parsing_rules.md#identifier)。或者，它可以是由符号指定的特殊全局变量之一。

$foo   # name `:$foo`

$_Test # name `:$_Test`

公共类方法

new (source, node_id, location, flags, name)

源码

# File lib/prism/node.rb, line 7893
def initialize(source, node_id, location, flags, name)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @name = name
end

初始化一个新的 GlobalVariableReadNode 节点。

type ()

源码

# File lib/prism/node.rb, line 7952
def self.type
  :global_variable_read_node
end

返回此节点类型的符号表示。请参阅“Node::type”。

公共实例方法

=== (other)

源码

# File lib/prism/node.rb, line 7958
def ===(other)
  other.is_a?(GlobalVariableReadNode) &&
    (name === other.name)
end

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

accept (visitor)

源码

# File lib/prism/node.rb, line 7902
def accept(visitor)
  visitor.visit_global_variable_read_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

源码

# File lib/prism/node.rb, line 7907
def child_nodes
  []
end

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

也别名为: deconstruct

comment_targets ()

源码

# File lib/prism/node.rb, line 7917
def comment_targets
  [] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

源码

# File lib/prism/node.rb, line 7912
def compact_child_nodes
  []
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, name: self.name)

源码

# File lib/prism/node.rb, line 7922
def copy(node_id: self.node_id, location: self.location, flags: self.flags, name: self.name)
  GlobalVariableReadNode.new(source, node_id, location, flags, name)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?name: Symbol) -> GlobalVariableReadNode

deconstruct ()

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

别名为: child_nodes

deconstruct_keys (keys)

源码

# File lib/prism/node.rb, line 7930
def deconstruct_keys(keys)
  { node_id: node_id, location: location, name: name }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, name: Symbol }

inspect ()

源码

# File lib/prism/node.rb, line 7942
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

type ()

源码

# File lib/prism/node.rb, line 7947
def type
  :global_variable_read_node
end

返回此节点类型的符号表示。请参阅 “Node#type”。