class Prism::AliasGlobalVariableNode
表示使用 alias 关键字为全局变量设置别名。
alias $foo $bar ^^^^^^^^^^^^^^^
属性
表示别名设置后可使用的全局变量的新名称。
alias $foo $bar
^^^^
表示别名设置前可使用的全局变量的旧名称。
alias $foo $bar
^^^^
Public Class Methods
Source
# File lib/prism/node.rb, line 321 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。
Source
# File lib/prism/node.rb, line 408 def self.type :alias_global_variable_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 414 def ===(other) other.is_a?(AliasGlobalVariableNode) && (new_name === other.new_name) && (old_name === other.old_name) && (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 332 def accept(visitor) visitor.visit_alias_global_variable_node(self) end
def accept: (Visitor visitor) -> void
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# File lib/prism/node.rb, line 337 def child_nodes [new_name, old_name] end
def child_nodes: () -> Array
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# File lib/prism/node.rb, line 347 def comment_targets [new_name, old_name, keyword_loc] #: Array[Prism::node | Location] end
def comment_targets: () -> Array[Node | Location]
Source
# File lib/prism/node.rb, line 342 def compact_child_nodes [new_name, old_name] end
def compact_child_nodes: () -> Array
Source
# File lib/prism/node.rb, line 352 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
Source
# File lib/prism/node.rb, line 360 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 }
Source
# File lib/prism/node.rb, line 398 def inspect InspectVisitor.compose(self) end
def inspect -> String
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# File lib/prism/node.rb, line 393 def keyword keyword_loc.slice end
def keyword: () -> String
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# File lib/prism/node.rb, line 380 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 ^^^^^
Source
# File lib/prism/node.rb, line 388 def save_keyword_loc(repository) repository.enter(node_id, :keyword_loc) end
使用给定的已保存源来保存 keyword_loc 位置,以便以后检索。