Class: SyntaxTree::YARV::NewArray

Inherits:

Object

• Object
• SyntaxTree::YARV::NewArray

Defined in:

lib/syntax_tree/yarv/instructions.rb

Overview

### Summary

newarray puts a new array initialized with number values from the stack. It pops number values off the stack and pushes the array onto the stack.

### Usage

~~~ruby

“string”

~~~

Instance Attribute Summary

• #number ⇒ Object readonly

  Returns the value of attribute number.

Instance Method Summary

• #call(vm) ⇒ Object
• #canonical ⇒ Object
• #disasm(fmt) ⇒ Object
• #initialize(number) ⇒ NewArray constructor

  A new instance of NewArray.

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

Constructor Details

#initialize(number) ⇒ NewArray

# File 'lib/syntax_tree/yarv/instructions.rb', line 2186

def initialize(number)
  @number = number
end

Instance Attribute Details

#number ⇒ Object (readonly)

Returns the value of attribute number.

# File 'lib/syntax_tree/yarv/instructions.rb', line 2184

def number
  @number
end

Instance Method Details

#call(vm) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2214

def call(vm)
  vm.push(vm.pop(number))
end

#canonical ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2210

def canonical
  self
end

#disasm(fmt) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2190

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

#length ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2198

def length
  2
end

#pops ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2202

def pops
  number
end

#pushes ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2206

def pushes
  1
end

#to_a(_iseq) ⇒ Object

# File 'lib/syntax_tree/yarv/instructions.rb', line 2194

def to_a(_iseq)
  [:newarray, number]
end