class Prism::ForNode

表示 for 关键字的使用。

for i in a end
^^^^^^^^^^^^^^

属性

collection [R]

要迭代的集合。

for i in a end
         ^

index [R]

for 循环的索引表达式。

for i in a end
    ^

statements [R]

表示每次循环迭代要执行的语句体。

for i in a
  foo(i)
  ^^^^^^
end

Public Class Methods

new (source, node_id, location, flags, index, collection, statements, for_keyword_loc, in_keyword_loc, do_keyword_loc, end_keyword_loc)

Source

# File lib/prism/node.rb, line 7242
def initialize(source, node_id, location, flags, index, collection, statements, for_keyword_loc, in_keyword_loc, do_keyword_loc, end_keyword_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @index = index
  @collection = collection
  @statements = statements
  @for_keyword_loc = for_keyword_loc
  @in_keyword_loc = in_keyword_loc
  @do_keyword_loc = do_keyword_loc
  @end_keyword_loc = end_keyword_loc
end

初始化一个新的 ForNode 节点。

type ()

Source

# File lib/prism/node.rb, line 7414
def self.type
  :for_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 7420
def ===(other)
  other.is_a?(ForNode) &&
    (index === other.index) &&
    (collection === other.collection) &&
    (statements === other.statements) &&
    (for_keyword_loc.nil? == other.for_keyword_loc.nil?) &&
    (in_keyword_loc.nil? == other.in_keyword_loc.nil?) &&
    (do_keyword_loc.nil? == other.do_keyword_loc.nil?) &&
    (end_keyword_loc.nil? == other.end_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。

accept (visitor)

Source

# File lib/prism/node.rb, line 7257
def accept(visitor)
  visitor.visit_for_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

Source

# File lib/prism/node.rb, line 7262
def child_nodes
  [index, collection, statements]
end

def child_nodes: () -> Array

也别名为：deconstruct

comment_targets ()

Source

# File lib/prism/node.rb, line 7276
def comment_targets
  [index, collection, *statements, for_keyword_loc, in_keyword_loc, *do_keyword_loc, end_keyword_loc] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

Source

# File lib/prism/node.rb, line 7267
def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << index
  compact << collection
  compact << statements if statements
  compact
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, index: self.index, collection: self.collection, statements: self.statements, for_keyword_loc: self.for_keyword_loc, in_keyword_loc: self.in_keyword_loc, do_keyword_loc: self.do_keyword_loc, end_keyword_loc: self.end_keyword_loc)

Source

# File lib/prism/node.rb, line 7281
def copy(node_id: self.node_id, location: self.location, flags: self.flags, index: self.index, collection: self.collection, statements: self.statements, for_keyword_loc: self.for_keyword_loc, in_keyword_loc: self.in_keyword_loc, do_keyword_loc: self.do_keyword_loc, end_keyword_loc: self.end_keyword_loc)
  ForNode.new(source, node_id, location, flags, index, collection, statements, for_keyword_loc, in_keyword_loc, do_keyword_loc, end_keyword_loc)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?index: LocalVariableTargetNode | InstanceVariableTargetNode | ClassVariableTargetNode | GlobalVariableTargetNode | ConstantTargetNode | ConstantPathTargetNode | CallTargetNode | IndexTargetNode | MultiTargetNode | BackReferenceReadNode | NumberedReferenceReadNode | MissingNode, ?collection: Prism::node, ?statements: StatementsNode?, ?for_keyword_loc: Location, ?in_keyword_loc: Location, ?do_keyword_loc: Location?, ?end_keyword_loc: Location) -> ForNode

deconstruct ()

def deconstruct: () -> Array

别名：child_nodes

deconstruct_keys (keys)

Source

# File lib/prism/node.rb, line 7289
def deconstruct_keys(keys)
  { node_id: node_id, location: location, index: index, collection: collection, statements: statements, for_keyword_loc: for_keyword_loc, in_keyword_loc: in_keyword_loc, do_keyword_loc: do_keyword_loc, end_keyword_loc: end_keyword_loc }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, index: LocalVariableTargetNode | InstanceVariableTargetNode | ClassVariableTargetNode | GlobalVariableTargetNode | ConstantTargetNode | ConstantPathTargetNode | CallTargetNode | IndexTargetNode | MultiTargetNode | BackReferenceReadNode | NumberedReferenceReadNode | MissingNode, collection: Prism::node, statements: StatementsNode?, for_keyword_loc: Location, in_keyword_loc: Location, do_keyword_loc: Location?, end_keyword_loc: Location }

do_keyword ()

Source

# File lib/prism/node.rb, line 7394
def do_keyword
  do_keyword_loc&.slice
end

def do_keyword: () -> String?

do_keyword_loc ()

Source

# File lib/prism/node.rb, line 7349
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

do 关键字的位置（如果存在）。

for i in a do end
           ^^

end_keyword ()

Source

# File lib/prism/node.rb, line 7399
def end_keyword
  end_keyword_loc.slice
end

def end_keyword: () -> String

end_keyword_loc ()

Source

# File lib/prism/node.rb, line 7371
def end_keyword_loc
  location = @end_keyword_loc
  return location if location.is_a?(Location)
  @end_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

end 关键字的位置。

for i in a end
           ^^^

for_keyword ()

Source

# File lib/prism/node.rb, line 7384
def for_keyword
  for_keyword_loc.slice
end

def for_keyword: () -> String

for_keyword_loc ()

Source

# File lib/prism/node.rb, line 7317
def for_keyword_loc
  location = @for_keyword_loc
  return location if location.is_a?(Location)
  @for_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

for 关键字的位置。

for i in a end
^^^

in_keyword ()

Source

# File lib/prism/node.rb, line 7389
def in_keyword
  in_keyword_loc.slice
end

def in_keyword: () -> String

in_keyword_loc ()

Source

# File lib/prism/node.rb, line 7333
def in_keyword_loc
  location = @in_keyword_loc
  return location if location.is_a?(Location)
  @in_keyword_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

in 关键字的位置。

for i in a end
      ^^

inspect ()

Source

# File lib/prism/node.rb, line 7404
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

save_do_keyword_loc (repository)

Source

# File lib/prism/node.rb, line 7363
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保存 do_keyword_loc 位置，以便稍后检索。

save_end_keyword_loc (repository)

Source

# File lib/prism/node.rb, line 7379
def save_end_keyword_loc(repository)
  repository.enter(node_id, :end_keyword_loc)
end

使用给定的已保存源保存 end_keyword_loc 位置，以便稍后检索。

save_for_keyword_loc (repository)

Source

# File lib/prism/node.rb, line 7325
def save_for_keyword_loc(repository)
  repository.enter(node_id, :for_keyword_loc)
end

使用给定的已保存源保存 for_keyword_loc 位置，以便稍后检索。

save_in_keyword_loc (repository)

Source

# File lib/prism/node.rb, line 7341
def save_in_keyword_loc(repository)
  repository.enter(node_id, :in_keyword_loc)
end

使用给定的已保存源保存 in_keyword_loc 位置，以便稍后检索。

type ()

Source

# File lib/prism/node.rb, line 7409
def type
  :for_node
end

返回此节点类型的符号表示。参见 Node#type。