Class: SyntaxTree::YARV::PutNil

Inherits:

Object

• Object
• SyntaxTree::YARV::PutNil

Defined in:

lib/syntax_tree/yarv/instructions.rb

Overview

### Summary

putnil pushes a global nil object onto the stack.

### Usage

~~~ruby nil ~~~

Instance Method Summary

• #call(vm) ⇒ Object
• #canonical ⇒ Object
• #disasm(fmt) ⇒ Object
• #length ⇒ Object
• #pops ⇒ Object
• #pushes ⇒ Object
• #to_a(_iseq) ⇒ Object

Instance Method Details

#call(vm) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 4193

def call(vm)
  canonical.call(vm)
end

#canonical ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 4189

def canonical
  PutObject.new(nil)
end

#disasm(fmt) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 4169

def disasm(fmt)
  fmt.instruction("putnil")
end

#length ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 4177

def length
  1
end

#pops ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 4181

def pops
  0
end

#pushes ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 4185

def pushes
  1
end

#to_a(_iseq) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 4173

def to_a(_iseq)
  [:putnil]
end