Class: SyntaxTree::YARV::DupHash

Inherits:

Object

• Object
• SyntaxTree::YARV::DupHash

Defined in:

lib/syntax_tree/yarv/instructions.rb

Overview

### Summary

duphash dups a Hash literal and pushes it onto the stack.

### Usage

~~~ruby { a: 1 } ~~~

Instance Attribute Summary

• #object ⇒ Object readonly

  Returns the value of attribute object.

Instance Method Summary

• #call(vm) ⇒ Object
• #canonical ⇒ Object
• #disasm(fmt) ⇒ Object
• #initialize(object) ⇒ DupHash constructor

  A new instance of DupHash.

• #length ⇒ Object
• #pops ⇒ Object
• #pushes ⇒ Object
• #to_a(_iseq) ⇒ Object

Constructor Details

#initialize(object) ⇒ DupHash

Returns a new instance of DupHash.

# File 'lib/syntax_tree/yarv/instructions.rb', line 1201

def initialize(object)
  @object = object
end

Instance Attribute Details

#object ⇒ Object (readonly)

Returns the value of attribute object.

# File 'lib/syntax_tree/yarv/instructions.rb', line 1199

def object
  @object
end

Instance Method Details

#call(vm) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 1229

def call(vm)
  vm.push(object.dup)
end

#canonical ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 1225

def canonical
  self
end

#disasm(fmt) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 1205

def disasm(fmt)
  fmt.instruction("duphash", [fmt.object(object)])
end

#length ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 1213

def length
  2
end

#pops ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 1217

def pops
  0
end

#pushes ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 1221

def pushes
  1
end

#to_a(_iseq) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 1209

def to_a(_iseq)
  [:duphash, object]
end