class Prism::BlockNode

表示 Ruby 代码块。

[1, 2, 3].each { |i| puts x }
               ^^^^^^^^^^^^^^

属性

body [R]

代码块的主体。

[1, 2, 3].each { |i| puts x }
                     ^^^^^^

locals [R]

在代码块中声明的局部变量。

[1, 2, 3].each { |i| puts x } # locals: [:i]
                  ^

parameters [R]

代码块的参数。

[1, 2, 3].each { |i| puts x }
                 ^^^
[1, 2, 3].each { puts _1 }
               ^^^^^^^^^^^
[1, 2, 3].each { puts it }
               ^^^^^^^^^^^

公共类方法

new (source, node_id, location, flags, locals, parameters, body, opening_loc, closing_loc)

源代码

# File lib/prism/node.rb, line 1831
def initialize(source, node_id, location, flags, locals, parameters, body, opening_loc, closing_loc)
  @source = source
  @node_id = node_id
  @location = location
  @flags = flags
  @locals = locals
  @parameters = parameters
  @body = body
  @opening_loc = opening_loc
  @closing_loc = closing_loc
end

初始化一个新的 BlockNode 节点。

type ()

源代码

# File lib/prism/node.rb, line 1954
def self.type
  :block_node
end

返回此节点类型的符号表示形式。请参阅 ‘Node::type`。

公共实例方法

=== (other)

源代码

# File lib/prism/node.rb, line 1960
def ===(other)
  other.is_a?(BlockNode) &&
    (locals.length == other.locals.length) &&
    locals.zip(other.locals).all? { |left, right| left === right } &&
    (parameters === other.parameters) &&
    (body === other.body) &&
    (opening_loc.nil? == other.opening_loc.nil?) &&
    (closing_loc.nil? == other.closing_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)

源代码

# File lib/prism/node.rb, line 1844
def accept(visitor)
  visitor.visit_block_node(self)
end

def accept: (Visitor visitor) -> void

child_nodes ()

源代码

# File lib/prism/node.rb, line 1849
def child_nodes
  [parameters, body]
end

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

也别名为：deconstruct

closing ()

源代码

# File lib/prism/node.rb, line 1939
def closing
  closing_loc.slice
end

def closing: () -> String

closing_loc ()

源代码

# File lib/prism/node.rb, line 1921
def closing_loc
  location = @closing_loc
  return location if location.is_a?(Location)
  @closing_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

表示闭合 ‘|` 的位置。

[1, 2, 3].each { |i| puts x }
                   ^

comment_targets ()

源代码

# File lib/prism/node.rb, line 1862
def comment_targets
  [*parameters, *body, opening_loc, closing_loc] #: Array[Prism::node | Location]
end

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

compact_child_nodes ()

源代码

# File lib/prism/node.rb, line 1854
def compact_child_nodes
  compact = [] #: Array[Prism::node]
  compact << parameters if parameters
  compact << body if body
  compact
end

def compact_child_nodes: () -> Array

copy (node_id: self.node_id, location: self.location, flags: self.flags, locals: self.locals, parameters: self.parameters, body: self.body, opening_loc: self.opening_loc, closing_loc: self.closing_loc)

源代码

# File lib/prism/node.rb, line 1867
def copy(node_id: self.node_id, location: self.location, flags: self.flags, locals: self.locals, parameters: self.parameters, body: self.body, opening_loc: self.opening_loc, closing_loc: self.closing_loc)
  BlockNode.new(source, node_id, location, flags, locals, parameters, body, opening_loc, closing_loc)
end

def copy: (?node_id: Integer, ?location: Location, ?flags: Integer, ?locals: Array, ?parameters: BlockParametersNode | NumberedParametersNode | ItParametersNode | nil, ?body: StatementsNode | BeginNode | nil, ?opening_loc: Location, ?closing_loc: Location) -> BlockNode

deconstruct ()

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

别名为：child_nodes

deconstruct_keys (keys)

源代码

# File lib/prism/node.rb, line 1875
def deconstruct_keys(keys)
  { node_id: node_id, location: location, locals: locals, parameters: parameters, body: body, opening_loc: opening_loc, closing_loc: closing_loc }
end

def deconstruct_keys: (Array keys) -> { node_id: Integer, location: Location, locals: Array, parameters: BlockParametersNode | NumberedParametersNode | ItParametersNode | nil, body: StatementsNode | BeginNode | nil, opening_loc: Location, closing_loc: Location }

inspect ()

源代码

# File lib/prism/node.rb, line 1944
def inspect
  InspectVisitor.compose(self)
end

def inspect -> String

opening ()

源代码

# File lib/prism/node.rb, line 1934
def opening
  opening_loc.slice
end

def opening: () -> String

opening_loc ()

源代码

# File lib/prism/node.rb, line 1905
def opening_loc
  location = @opening_loc
  return location if location.is_a?(Location)
  @opening_loc = Location.new(source, location >> 32, location & 0xFFFFFFFF)
end

表示开头的 ‘|` 的位置。

[1, 2, 3].each { |i| puts x }
                 ^

save_closing_loc (repository)

源代码

# File lib/prism/node.rb, line 1929
def save_closing_loc(repository)
  repository.enter(node_id, :closing_loc)
end

使用给定的保存的源代码保存 closing_loc 位置，以便稍后检索。

save_opening_loc (repository)

源代码

# File lib/prism/node.rb, line 1913
def save_opening_loc(repository)
  repository.enter(node_id, :opening_loc)
end

使用给定的保存的源代码保存 opening_loc 位置，以便稍后检索。

type ()

源代码

# File lib/prism/node.rb, line 1949
def type
  :block_node
end

返回此节点类型的符号表示形式。请参阅 ‘Node#type`。