class Prism::CapturePatternNode

在模式匹配中表示赋值给局部变量。

foo => [bar => baz]
       ^^^^^^^^^^^^

属性

target [R]

表示捕获的目标。

foo => bar
^^^

value [R]

表示要捕获的值。

foo => bar
       ^^^

Public Class Methods

new (source, node_id, location, flags, value, target, operator_loc)

Source

# File lib/prism/node.rb, line 3461
def initialize(source, node_id, location, flags, value, target, operator_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @value = value
  @target = target
  @operator_loc = operator_loc
end

初始化一个新的 CapturePatternNode 节点。

type ()

Source

# File lib/prism/node.rb, line 3548
def self.type
  :capture_pattern_node
end

返回此节点类型的符号表示。参见 Node::type。

Public Instance Methods

=== (other)

Source

# File lib/prism/node.rb, line 3554
def ===(other)
  other.is_a?(CapturePatternNode) &&
    (value === other.value) &&
    (target === other.target) &&
    (operator_loc.nil? == other.operator_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。

accept (visitor)

Source

# File lib/prism/node.rb, line 3472
def accept(visitor)
  visitor.visit_capture_pattern_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

Source

# File lib/prism/node.rb, line 3477
def child_nodes
  [value, target]
end

def child_nodes: () -> Array

也别名为： deconstruct

comment_targets ()

Source

# File lib/prism/node.rb, line 3487
def comment_targets
  [value, target, operator_loc] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 3482
def compact_child_nodes
  [value, target]
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, value: self.value, target: self.target, operator_loc: self.operator_loc)

Source

# File lib/prism/node.rb, line 3492
def copy(node_id: self.node_id, location: self.location, flags: self.flags, value: self.value, target: self.target, operator_loc: self.operator_loc)
  CapturePatternNode.new(source, node_id, location, flags, value, target, operator_loc)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?value: Prism::node, ?target: LocalVariableTargetNode, ?operator_loc: Location) -> CapturePatternNode

deconstruct ()

def deconstruct: () -> Array

别名： child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 3500
def deconstruct_keys(keys)
  { node_id: node_id, location: location, value: value, target: target, operator_loc: operator_loc }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, value: Prism::node, target: LocalVariableTargetNode, operator_loc: Location }

inspect ()

Source

# File lib/prism/node.rb, line 3538
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

operator ()

Source

# File lib/prism/node.rb, line 3533
def operator
  operator_loc.slice
end

def operator: () -> String

operator_loc ()

Source

# File lib/prism/node.rb, line 3520
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 => 操作符的位置。

foo => bar
    ^^

save_operator_loc (repository)

Source

# File lib/prism/node.rb, line 3528
def save_operator_loc(repository)
  repository.enter(node_id, :operator_loc)
end

使用给定的已保存源来保存 operator_loc 位置，以便稍后检索。

type ()

Source

# File lib/prism/node.rb, line 3543
def type
  :capture_pattern_node
end

返回此节点类型的符号表示。参见 Node#type。