Class: SyntaxTree::YARV::InstructionSequence::Label

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

Overview

This represents the destination of instructions that jump. Initially it does not track its position so that when we perform optimizations the indices don’t get messed up.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name = nil) ⇒ Label

Returns a new instance of Label.



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# File 'lib/syntax_tree/yarv/instruction_sequence.rb', line 115

def initialize(name = nil)
  @name = name
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/syntax_tree/yarv/instruction_sequence.rb', line 108

def name
  @name
end

#node ⇒ Object

When we’re serializing the instruction sequence, we need to be able to look up the label from the branch instructions and then access the subsequent node. So we’ll store the reference here.



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# File 'lib/syntax_tree/yarv/instruction_sequence.rb', line 113

def node
  @node
end

Instance Method Details

#inspect ⇒ Object 



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# File 'lib/syntax_tree/yarv/instruction_sequence.rb', line 123

def inspect
  name.inspect
end

#patch!(name) ⇒ Object 



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# File 'lib/syntax_tree/yarv/instruction_sequence.rb', line 119

def patch!(name)
  @name = name
end