Class: SyntaxTree::YARV::DefineSMethod

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

Overview

### Summary

definesmethod defines a method on the singleton class of the current value of self. It accepts two arguments. The first is the name of the method being defined. The second is the instruction sequence representing the body of the method. It pops the object off the stack that the method should be defined on.

### Usage

~~~ruby def self.value = “value” ~~~

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(method_name, method_iseq) ⇒ DefineSMethod 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1047

def initialize(method_name, method_iseq)
  @method_name = method_name
  @method_iseq = method_iseq
end

Instance Attribute Details

#method_iseq ⇒ Object (readonly)

Returns the value of attribute method_iseq.



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1045

def method_iseq
  @method_iseq
end

#method_name ⇒ Object (readonly)

Returns the value of attribute method_name.



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1045

def method_name
  @method_name
end

Instance Method Details

#call(vm) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1080

def call(vm)
  name = method_name
  nesting = vm.frame.nesting
  iseq = method_iseq

  vm
    .frame
    ._self
    .__send__(:define_singleton_method, name) do |*args, **kwargs, &block|
      vm.run_method_frame(
        name,
        nesting,
        iseq,
        self,
        *args,
        **kwargs,
        &block
      )
    end
end

#canonical ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1076

def canonical
  self
end

#disasm(fmt) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1052

def disasm(fmt)
  fmt.enqueue(method_iseq)
  fmt.instruction(
    "definesmethod",
    [fmt.object(method_name), method_iseq.name]
  )
end

#length ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1064

def length
  3
end

#pops ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1068

def pops
  1
end

#pushes ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1072

def pushes
  0
end

#to_a(_iseq) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instructions.rb', line 1060

def to_a(_iseq)
  [:definesmethod, method_name, method_iseq.to_a]
end