class SyntaxTree::YARV::Legacy::SetClassVariable

### Summary

‘setclassvariable` looks for a class variable in the current class and sets its value to the value it pops off the top of the stack.

This version of the ‘setclassvariable` instruction is no longer used since in Ruby 3.0 it gained an inline cache.

### Usage

~~~ruby @@class_variable = 1 ~~~

Source

# File lib/syntax_tree/yarv/legacy.rb, line 302
def initialize(name)
  @name = name
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 318
def ==(other)
  other.is_a?(SetClassVariable) && other.name == name
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 334
def call(vm)
  canonical.call(vm)
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 330
def canonical
  YARV::SetClassVariable.new(name, nil)
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 314
def deconstruct_keys(_keys)
  { name: name }
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 306
def disasm(fmt)
  fmt.instruction("setclassvariable", [fmt.object(name)])
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 322
def length
  2
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 326
def pops
  1
end

Source

# File lib/syntax_tree/yarv/legacy.rb, line 310
def to_a(_iseq)
  [:setclassvariable, name]
end