Class: SyntaxTree::YARV::OptPlus

Inherits:
Object
  • Object
show all
Defined in:
lib/syntax_tree/yarv/instructions.rb

Overview

### Summary

opt_plus is a specialization of the opt_send_without_block instruction that occurs when the ‘+` operator is used. There are fast paths for if both operands are integers, floats, strings, or arrays. It pops both the receiver and the argument off the stack and pushes on the result.

### Usage

~~~ruby 2 + 3 ~~~

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(calldata) ⇒ OptPlus 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4332

def initialize(calldata)
  @calldata = calldata
end

Instance Attribute Details

#calldata ⇒ Object (readonly)

Returns the value of attribute calldata.



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4330

def calldata
  @calldata
end

Instance Method Details

#==(other) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4348

def ==(other)
  other.is_a?(OptPlus) && other.calldata == calldata
end

#call(vm) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4368

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

#canonical ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4364

def canonical
  Send.new(calldata, nil)
end

#deconstruct_keys(_keys) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4344

def deconstruct_keys(_keys)
  { calldata: calldata }
end

#disasm(fmt) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4336

def disasm(fmt)
  fmt.instruction("opt_plus", [fmt.calldata(calldata)])
end

#length ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4352

def length
  2
end

#pops ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4356

def pops
  2
end

#pushes ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4360

def pushes
  1
end

#to_a(_iseq) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4340

def to_a(_iseq)
  [:opt_plus, calldata.to_h]
end