Class: SyntaxTree::MAssign

Inherits:
Object
  • Object
show all
Defined in:
lib/syntax_tree.rb

Overview

MAssign is a parent node of any kind of multiple assignment. This includes splitting out variables on the left like:

first, second, third = value

as well as splitting out variables on the right, as in:

value = first, second, third

Both sides support splats, as well as variables following them. There’s also destructuring behavior that you can achieve with the following:

first, = value

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(target:, value:, location:, comments: []) ⇒ MAssign

Returns a new instance of MAssign.



8191
8192
8193
8194
8195
8196
 
# File 'lib/syntax_tree.rb', line 8191

def initialize(target:, value:, location:, comments: [])
  @target = target
  @value = value
  @location = location
  @comments = comments
end

Instance Attribute Details

#comments ⇒ Object (readonly)

Array[ Comment | EmbDoc ]

the comments attached to this node



8189
8190
8191
 
# File 'lib/syntax_tree.rb', line 8189

def comments
  @comments
end

#location ⇒ Object (readonly)

Location

the location of this node



8186
8187
8188
 
# File 'lib/syntax_tree.rb', line 8186

def location
  @location
end

#target ⇒ Object (readonly)

MLHS | MLHSParen

the target of the multiple assignment



8180
8181
8182
 
# File 'lib/syntax_tree.rb', line 8180

def target
  @target
end

#value ⇒ Object (readonly)

untyped

the value being assigned



8183
8184
8185
 
# File 'lib/syntax_tree.rb', line 8183

def value
  @value
end

Instance Method Details

#child_nodes ⇒ Object 



8198
8199
8200
 
# File 'lib/syntax_tree.rb', line 8198

def child_nodes
  [target, value]
end

#format(q) ⇒ Object 



8202
8203
8204
8205
8206
8207
8208
8209
8210
8211
 
# File 'lib/syntax_tree.rb', line 8202

def format(q)
  q.group do
    q.group { q.format(target) }
    q.text(" =")
    q.indent do
      q.breakable
      q.format(value)
    end
  end
end

#pretty_print(q) ⇒ Object 



8213
8214
8215
8216
8217
8218
8219
8220
8221
8222
8223
8224
8225
 
# File 'lib/syntax_tree.rb', line 8213

def pretty_print(q)
  q.group(2, "(", ")") do
    q.text("massign")

    q.breakable
    q.pp(target)

    q.breakable
    q.pp(value)

    q.pp(Comment::List.new(comments))
  end
end

#to_json(*opts) ⇒ Object 



8227
8228
8229
8230
8231
8232
8233
8234
8235
 
# File 'lib/syntax_tree.rb', line 8227

def to_json(*opts)
  {
    type: :massign,
    target: target,
    value: value,
    loc: location,
    cmts: comments
  }.to_json(*opts)
end