class SyntaxTree::YARV::SetN

### Summary

‘setn` sets a value in the stack to a value popped off the top of the stack. It then pushes that value onto the top of the stack as well.

### Usage

~~~ruby = ‘val’ ~~~

number[R]

new(number) click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5329
def initialize(number)
  @number = number
end

==(other) click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5345
def ==(other)
  other.is_a?(SetN) && other.number == number
end

call(vm) click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5361
def call(vm)
  vm.stack[-number - 1] = vm.stack.last
end

deconstruct_keys(_keys) click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5341
def deconstruct_keys(_keys)
  { number: number }
end

disasm(fmt) click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5333
def disasm(fmt)
  fmt.instruction("setn", [fmt.object(number)])
end

length() click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5349
def length
  2
end

pops() click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5353
def pops
  1
end

pushes() click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5357
def pushes
  1
end

to_a(_iseq) click to toggle source

# File lib/syntax_tree/yarv/instructions.rb, line 5337
def to_a(_iseq)
  [:setn, number]
end