class Prism::WhileNode

表示 while 关键字的用法，无论是块形式还是修饰符形式。

bar while foo
^^^^^^^^^^^^^

while foo do bar end
^^^^^^^^^^^^^^^^^^^^

属性

predicate [R]

attr_reader predicate: Prism::node

statements [R]

attr_reader statements: StatementsNode?

Public Class Methods

new (source, node_id, location, flags, keyword_loc, do_keyword_loc, closing_loc, predicate, statements)

Source

# File lib/prism/node.rb, line 18224
def initialize(source, node_id, location, flags, keyword_loc, do_keyword_loc, closing_loc, predicate, statements)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @keyword_loc = keyword_loc
  @do_keyword_loc = do_keyword_loc
  @closing_loc = closing_loc
  @predicate = predicate
  @statements = statements
end

初始化一个新的 WhileNode 节点。

type ()

Source

# File lib/prism/node.rb, line 18360
def self.type
  :while_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 18366
def ===(other)
  other.is_a?(WhileNode) &&
    (flags === other.flags) &&
    (keyword_loc.nil? == other.keyword_loc.nil?) &&
    (do_keyword_loc.nil? == other.do_keyword_loc.nil?) &&
    (closing_loc.nil? == other.closing_loc.nil?) &&
    (predicate === other.predicate) &&
    (statements === other.statements)
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 18237
def accept(visitor)
  visitor.visit_while_node(self)
end

def accept: (Visitor visitor) -> void

begin_modifier? ()

Source

# File lib/prism/node.rb, line 18273
def begin_modifier?
  flags.anybits?(LoopFlags::BEGIN_MODIFIER)
end

def begin_modifier?: () -> bool

child_nodes ()

Source

# File lib/prism/node.rb, line 18242
def child_nodes
  [predicate, statements]
end

def child_nodes: () -> Array

也别名为：deconstruct

closing ()

Source

# File lib/prism/node.rb, line 18345
def closing
  closing_loc&.slice
end

def closing: () -> String?

closing_loc ()

Source

# File lib/prism/node.rb, line 18310
def closing_loc
  location = @closing_loc
  case location
  when nil
    nil
  when Location
    location
  else
    @closing_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
  end
end

attr_reader closing_loc: Location?

comment_targets ()

Source

# File lib/prism/node.rb, line 18255
def comment_targets
  [keyword_loc, *do_keyword_loc, *closing_loc, predicate, *statements] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 18247
def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << predicate
  compact << statements if statements
  compact
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, keyword_loc: self.keyword_loc, do_keyword_loc: self.do_keyword_loc, closing_loc: self.closing_loc, predicate: self.predicate, statements: self.statements)

Source

# File lib/prism/node.rb, line 18260
def copy(node_id: self.node_id, location: self.location, flags: self.flags, keyword_loc: self.keyword_loc, do_keyword_loc: self.do_keyword_loc, closing_loc: self.closing_loc, predicate: self.predicate, statements: self.statements)
  WhileNode.new(source, node_id, location, flags, keyword_loc, do_keyword_loc, closing_loc, predicate, statements)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?keyword_loc: Location, ?do_keyword_loc: Location?, ?closing_loc: Location?, ?predicate: Prism::node, ?statements: StatementsNode?) -> WhileNode

deconstruct ()

def deconstruct: () -> Array

别名为：child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 18268
def deconstruct_keys(keys)
  { node_id: node_id, location: location, keyword_loc: keyword_loc, do_keyword_loc: do_keyword_loc, closing_loc: closing_loc, predicate: predicate, statements: statements }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, keyword_loc: Location, do_keyword_loc: Location?, closing_loc: Location?, predicate: Prism::node, statements: StatementsNode? }

do_keyword ()

Source

# File lib/prism/node.rb, line 18340
def do_keyword
  do_keyword_loc&.slice
end

def do_keyword: () -> String?

do_keyword_loc ()

Source

# File lib/prism/node.rb, line 18291
def do_keyword_loc
  location = @do_keyword_loc
  case location
  when nil
    nil
  when Location
    location
  else
    @do_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
  end
end

attr_reader do_keyword_loc: Location?

inspect ()

Source

# File lib/prism/node.rb, line 18350
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

keyword ()

Source

# File lib/prism/node.rb, line 18335
def keyword
  keyword_loc.slice
end

def keyword: () -> String

keyword_loc ()

Source

# File lib/prism/node.rb, line 18278
def keyword_loc
  location = @keyword_loc
  return location if location.is_a?(Location)
  @keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

attr_reader keyword_loc: Location

save_closing_loc (repository)

Source

# File lib/prism/node.rb, line 18324
def save_closing_loc(repository)
  repository.enter(node_id, :closing_loc) unless @closing_loc.nil?
end

使用给定的已保存源来保存 closing_loc 位置，以便稍后检索。

save_do_keyword_loc (repository)

Source

# File lib/prism/node.rb, line 18305
def save_do_keyword_loc(repository)
  repository.enter(node_id, :do_keyword_loc) unless @do_keyword_loc.nil?
end

使用给定的已保存源来保存 do_keyword_loc 位置，以便稍后检索。

save_keyword_loc (repository)

Source

# File lib/prism/node.rb, line 18286
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，以便稍后检索。

type ()

Source

# File lib/prism/node.rb, line 18355
def type
  :while_node
end

返回此节点类型的符号表示。参见 Node#type。