class SyntaxTree::YARV::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. It uses an inline cache to reduce the need to lookup the class variable in the class hierarchy every time.

### Usage

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

Attributes

cache [R]

name [R]

Public Class Methods

new (name, cache)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5108
def initialize(name, cache)
  @name = name
  @cache = cache
end

Public Instance Methods

== (other)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5128
def ==(other)
  other.is_a?(SetClassVariable) && other.name == name &&
    other.cache == cache
end

call (vm)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5141
def call(vm)
  clazz = vm.frame._self
  clazz = clazz.class unless clazz.is_a?(Class)
  clazz.class_variable_set(name, vm.pop)
end

deconstruct_keys (_keys)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5124
def deconstruct_keys(_keys)
  { name: name, cache: cache }
end

disasm (fmt)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5113
def disasm(fmt)
  fmt.instruction(
    "setclassvariable",
    [fmt.object(name), fmt.inline_storage(cache)]
  )
end

length ()

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5133
def length
  3
end

pops ()

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5137
def pops
  1
end

to_a (_iseq)

Source

# File lib/syntax_tree/yarv/instructions.rb, line 5120
def to_a(_iseq)
  [:setclassvariable, name, cache]
end