class Prism::BlockArgumentNode

表示使用 ‘&` 的块参数。

bar(&args)
^^^^^^^^^^

属性

expression [R]

作为块参数传递的表达式。这可以是任何[非空表达式](github.com/ruby/prism/blob/main/docs/parsing_rules.md#non-void-expression)。

foo(&args)
    ^^^^^

公共类方法

new (source, node_id, location, flags, expression, operator_loc)

源

# File lib/prism/node.rb, line 1648
def initialize(source, node_id, location, flags, expression, operator_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @expression = expression
  @operator_loc = operator_loc
end

初始化一个新的 BlockArgumentNode 节点。

type ()

源

# File lib/prism/node.rb, line 1730
def self.type
  :block_argument_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

# File lib/prism/node.rb, line 1736
def ===(other)
  other.is_a?(BlockArgumentNode) &&
    (expression === other.expression) &&
    (operator_loc.nil? == other.operator_loc.nil?)
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

# File lib/prism/node.rb, line 1658
def accept(visitor)
  visitor.visit_block_argument_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

源

# File lib/prism/node.rb, line 1663
def child_nodes
  [expression]
end

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

也别名为：deconstruct

comment_targets ()

源

# File lib/prism/node.rb, line 1675
def comment_targets
  [*expression, operator_loc] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

源

# File lib/prism/node.rb, line 1668
def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << expression if expression
  compact
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, expression: self.expression, operator_loc: self.operator_loc)

源

# File lib/prism/node.rb, line 1680
def copy(node_id: self.node_id, location: self.location, flags: self.flags, expression: self.expression, operator_loc: self.operator_loc)
  BlockArgumentNode.new(source, node_id, location, flags, expression, operator_loc)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?expression: Prism::node?, ?operator_loc: Location) -> BlockArgumentNode

deconstruct ()

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

别名为：child_nodes

deconstruct_keys (keys)

源

# File lib/prism/node.rb, line 1688
def deconstruct_keys(keys)
  { node_id: node_id, location: location, expression: expression, operator_loc: operator_loc }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, expression: Prism::node?, operator_loc: Location }

inspect ()

源

# File lib/prism/node.rb, line 1720
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

operator ()

源

# File lib/prism/node.rb, line 1715
def operator
  operator_loc.slice
end

def operator: () -> String

operator_loc ()

源

# File lib/prism/node.rb, line 1702
def operator_loc
  location = @operator_loc
  return location if location.is_a?(Location)
  @operator_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

表示 ‘&` 运算符的位置。

foo(&args)
    ^

save_operator_loc (repository)

源

# File lib/prism/node.rb, line 1710
def save_operator_loc(repository)
  repository.enter(node_id, :operator_loc)
end

使用给定的已保存源保存 operator_loc 位置，以便稍后检索。

type ()

源

# File lib/prism/node.rb, line 1725
def type
  :block_argument_node
end

返回此节点类型的符号表示。请参阅 ‘Node#type`。