# class Prism::ModuleNode

Represents a module declaration involving the ‘module` keyword.

    module Foo end
    ^^^^^^^^^^^^^^

### Attributes

body[R]

attr_reader body: `Node`?

constant_path[R]

attr_reader `constant_path`: `Node`

end_keyword_loc[R]

attr_reader `end_keyword_loc`: `Location`

locals[R]

attr_reader locals: Array

module_keyword_loc[R]

attr_reader `module_keyword_loc`: `Location`

name[R]

attr_reader name: `Symbol`

### Public Class Methods

new(locals, module_keyword_loc, constant_path, body, end_keyword_loc, name, location) click to toggle source

def initialize: (locals: Array, `module_keyword_loc`: `Location`, `constant_path`: `Node`, body: `Node`?, `end_keyword_loc`: `Location`, name: `Symbol`, location: `Location`) -> void

    # File lib/prism/node.rb, line 11995
    def initialize(locals, module_keyword_loc, constant_path, body, end_keyword_loc, name, location)
      @locals = locals
      @module_keyword_loc = module_keyword_loc
      @constant_path = constant_path
      @body = body
      @end_keyword_loc = end_keyword_loc
      @name = name
      @location = location
    end

type() click to toggle source

Similar to `type`, this method returns a symbol that you can use for splitting on the type of the node without having to do a long === chain. Note that like `type`, it will still be slower than using == for a single class, but should be faster in a case statement or an array comparison.

def self.type: () -> `Symbol`

    # File lib/prism/node.rb, line 12101
    def self.type
      :module_node
    end

### Public Instance Methods

accept(visitor) click to toggle source

def accept: (visitor: `Visitor`) -> void

    # File lib/prism/node.rb, line 12006
    def accept(visitor)
      visitor.visit_module_node(self)
    end

child_nodes() click to toggle source

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

    # File lib/prism/node.rb, line 12011
    def child_nodes
      [constant_path, body]
    end

Also aliased as: deconstruct
comment_targets() click to toggle source

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

    # File lib/prism/node.rb, line 12024
    def comment_targets
      [module_keyword_loc, constant_path, *body, end_keyword_loc]
    end

compact_child_nodes() click to toggle source

def `compact_child_nodes`: () -> Array

    # File lib/prism/node.rb, line 12016
    def compact_child_nodes
      compact = []
      compact << constant_path
      compact << body if body
      compact
    end

copy(**params) click to toggle source

def copy: (**params) -> `ModuleNode`

    # File lib/prism/node.rb, line 12029
    def copy(**params)
      ModuleNode.new(
        params.fetch(:locals) { locals },
        params.fetch(:module_keyword_loc) { module_keyword_loc },
        params.fetch(:constant_path) { constant_path },
        params.fetch(:body) { body },
        params.fetch(:end_keyword_loc) { end_keyword_loc },
        params.fetch(:name) { name },
        params.fetch(:location) { location },
      )
    end

deconstruct()

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

Alias for: child_nodes
deconstruct_keys(keys) click to toggle source

def `deconstruct_keys`: (keys: Array) -> Hash[Symbol, nil | `Node` | Array | `String` | `Token` | Array | Location]

    # File lib/prism/node.rb, line 12045
    def deconstruct_keys(keys)
      { locals: locals, module_keyword_loc: module_keyword_loc, constant_path: constant_path, body: body, end_keyword_loc: end_keyword_loc, name: name, location: location }
    end

end_keyword() click to toggle source

def `end_keyword`: () -> `String`

    # File lib/prism/node.rb, line 12055
    def end_keyword
      end_keyword_loc.slice
    end

inspect(inspector = NodeInspector.new) click to toggle source

def inspect(inspector: NodeInspector) -> `String`

    # File lib/prism/node.rb, line 12060
    def inspect(inspector = NodeInspector.new)
      inspector << inspector.header(self)
      inspector << "├── locals: #{locals.inspect}\n"
      inspector << "├── module_keyword_loc: #{inspector.location(module_keyword_loc)}\n"
      inspector << "├── constant_path:\n"
      inspector << inspector.child_node(constant_path, "│   ")
      if (body = self.body).nil?
        inspector << "├── body: ∅\n"
      else
        inspector << "├── body:\n"
        inspector << body.inspect(inspector.child_inspector("│   ")).delete_prefix(inspector.prefix)
      end
      inspector << "├── end_keyword_loc: #{inspector.location(end_keyword_loc)}\n"
      inspector << "└── name: #{name.inspect}\n"
      inspector.to_str
    end

module_keyword() click to toggle source

def `module_keyword`: () -> `String`

    # File lib/prism/node.rb, line 12050
    def module_keyword
      module_keyword_loc.slice
    end

type() click to toggle source

Sometimes you want to check an instance of a node against a list of classes to see what kind of behavior to perform. Usually this is done by calling ‘[cls1, cls2].include?(node.class)` or putting the node into a case statement and doing `case node; when cls1; when cls2; end`. Both of these approaches are relatively slow because of the constant lookups, method calls, and/or array allocations.

Instead, you can call `type`, which will return to you a symbol that you can use for comparison. This is faster than the other approaches because it uses a single integer comparison, but also because if you’re on CRuby you can take advantage of the fact that case statements with all symbol keys will use a jump table.

def type: () -> `Symbol`

    # File lib/prism/node.rb, line 12091
    def type
      :module_node
    end