Class: SyntaxTree::YARV::OptStrUMinus

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

Overview

### Summary

opt_str_uminus pushes a frozen known string value with no interpolation onto the stack. If the method gets overridden, this will fall back to a send.

### Usage

~~~ruby -“string” ~~~

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(object, calldata) ⇒ OptStrUMinus

Returns a new instance of OptStrUMinus.



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4032

def initialize(object, calldata)
  @object = object
  @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 4030

def calldata
  @calldata
end

#object ⇒ Object (readonly)

Returns the value of attribute object.



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4030

def object
  @object
end

Instance Method Details

#call(vm) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4064

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

#canonical ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4060

def canonical
  self
end

#disasm(fmt) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4037

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

#length ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4048

def length
  3
end

#pops ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4052

def pops
  0
end

#pushes ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4056

def pushes
  1
end

#to_a(_iseq) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 4044

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