Class: VMLib::InstSeqTree

Inherits:
Object show all
Defined in:
lib/ytljit/rubyvm.rb

Constant Summary collapse

Headers = 
%w(magic major_version minor_version format_type
misc name filename filepath line type locals args 
exception_table)

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(parent = nil, iseq = nil) ⇒ InstSeqTree

call-seq:

VMLib::InstSeqTree.new(parent, iseq)
   parent  Partent of InstSeqTree
           For example, when you will construct InstSeqTree of
           the method body, you must 'parent' is InstSeqTree of definition
           code of the method.
           If parent is none, 'parent' is nil.
   iseq    Instruction Sequence, Normally the result of 
           VM::InstructionSequence.compile(...) or 
           VM::InstructionSequence.compile_file(...)



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# File 'lib/ytljit/rubyvm.rb', line 22

def initialize(parent = nil, iseq = nil)
  @lblock = {}
  @lblock_list = [nil]

  @header = {}
  @body = nil
  @parent = parent

  Headers.each do |name|
    @header[name] = nil
  end
  
  if iseq then
    init_from_ary(iseq.to_a)
  end
end

Instance Attribute Details

#body ⇒ Object

Returns the value of attribute body.



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# File 'lib/ytljit/rubyvm.rb', line 40

def body
  @body
end

#header ⇒ Object (readonly)

Returns the value of attribute header.



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# File 'lib/ytljit/rubyvm.rb', line 39

def header
  @header
end

#parent ⇒ Object (readonly)

Returns the value of attribute parent.



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# File 'lib/ytljit/rubyvm.rb', line 41

def parent
  @parent
end

Instance Method Details

#init_from_ary(ary) ⇒ Object 



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# File 'lib/ytljit/rubyvm.rb', line 43

def init_from_ary(ary)
  i = 0
  Headers.each do |name|
    @header[name] = ary[i]
    i = i + 1
  end

  @body = ary[i]
end

#to_a ⇒ Object 



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# File 'lib/ytljit/rubyvm.rb', line 53

def to_a
  res = []
  Headers.each do |name|
    res.push @header[name]
  end
  
  res.push @body
  res
end