Class: YTLJit::VM::YARVContext

Inherits:
Object
  • Object
show all
Includes:
Node
Defined in:
lib/ytljit/vm_trans.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Node

#compile_compare_nonnum

Constructor Details

#initialize(oldcontext = nil) ⇒ YARVContext

Returns a new instance of YARVContext.



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# File 'lib/ytljit/vm_trans.rb', line 6

def initialize(oldcontext = nil)
  if oldcontext and false then
    @the_top = oldcontext.the_top
  else
    @the_top = TopTopNode.new(nil, Object)
  end
  @top_nodes = [@the_top]
  @current_file_name = nil
  @current_class_node = @the_top
  @current_method_node = nil

  @enc_label = ""
  @enc_pos_in_source = ""
  @current_line_no = 0
  @current_local_label = nil

  @current_node = @the_top

  @vmtab = []

  @expstack = []

  @local_label_tab = {}
  @local_label_list = []

  @exception_table = {}

  @not_reached_pos = false

  @macro_method = nil
end

Instance Attribute Details

#current_class_node ⇒ Object

Returns the value of attribute current_class_node.



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# File 'lib/ytljit/vm_trans.rb', line 42

def current_class_node
  @current_class_node
end

#current_file_name ⇒ Object

Returns the value of attribute current_file_name.



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

def current_file_name
  @current_file_name
end

#current_line_no ⇒ Object

Returns the value of attribute current_line_no.



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# File 'lib/ytljit/vm_trans.rb', line 47

def current_line_no
  @current_line_no
end

#current_local_label ⇒ Object

Returns the value of attribute current_local_label.



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# File 'lib/ytljit/vm_trans.rb', line 48

def current_local_label
  @current_local_label
end

#current_method_node ⇒ Object

Returns the value of attribute current_method_node.



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

def current_method_node
  @current_method_node
end

#current_node ⇒ Object

Returns the value of attribute current_node.



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# File 'lib/ytljit/vm_trans.rb', line 50

def current_node
  @current_node
end

#enc_label ⇒ Object

Returns the value of attribute enc_label.



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# File 'lib/ytljit/vm_trans.rb', line 45

def enc_label
  @enc_label
end

#enc_pos_in_source ⇒ Object

Returns the value of attribute enc_pos_in_source.



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# File 'lib/ytljit/vm_trans.rb', line 46

def enc_pos_in_source
  @enc_pos_in_source
end

#exception_table ⇒ Object

Returns the value of attribute exception_table.



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# File 'lib/ytljit/vm_trans.rb', line 58

def exception_table
  @exception_table
end

#expstack ⇒ Object (readonly)

Returns the value of attribute expstack.



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# File 'lib/ytljit/vm_trans.rb', line 54

def expstack
  @expstack
end

#local_label_list ⇒ Object (readonly)

Returns the value of attribute local_label_list.



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# File 'lib/ytljit/vm_trans.rb', line 56

def local_label_list
  @local_label_list
end

#local_label_tab ⇒ Object (readonly)

Returns the value of attribute local_label_tab.



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# File 'lib/ytljit/vm_trans.rb', line 55

def local_label_tab
  @local_label_tab
end

#macro_method ⇒ Object

Returns the value of attribute macro_method.



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# File 'lib/ytljit/vm_trans.rb', line 62

def macro_method
  @macro_method
end

#not_reached_pos ⇒ Object

Returns the value of attribute not_reached_pos.



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# File 'lib/ytljit/vm_trans.rb', line 60

def not_reached_pos
  @not_reached_pos
end

#the_top ⇒ Object

Returns the value of attribute the_top.



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# File 'lib/ytljit/vm_trans.rb', line 38

def the_top
  @the_top
end

#top_nodes ⇒ Object (readonly)

Returns the value of attribute top_nodes.



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

def top_nodes
  @top_nodes
end

#vmtab ⇒ Object (readonly)

Returns the value of attribute vmtab.



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# File 'lib/ytljit/vm_trans.rb', line 52

def vmtab
  @vmtab
end

Instance Method Details

#current_exception_table ⇒ Object 



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# File 'lib/ytljit/vm_trans.rb', line 100

def current_exception_table
  result = {}
  @exception_table.each do |kind, lst|
    lst.each do |st, ed, cnt, body|
      if @local_label_list.include?(st) and
          !@local_label_list.include?(ed) and 
          body then
        result[kind] = [st, ed, cnt, body]
        break
      end
    end
  end

  result
end

#debug_info ⇒ Object 



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# File 'lib/ytljit/vm_trans.rb', line 85

def debug_info
  mname = nil
  if @current_method_node then
    mname = @current_method_node.get_constant_value
  end
  if mname then
    mname = mname[0]
  end

  [@current_file_name, 
   @current_class_node.name, 
   mname,
   @current_line_no]
end

#import_object(klass, name, value) ⇒ Object 



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# File 'lib/ytljit/vm_trans.rb', line 64

def import_object(klass, name, value)
  ctn = ClassTopNode.get_class_top_node(klass)
  if ctn == nil then
    ctn = ClassTopNode.new(@the_top, klass, klass.name)
  end

  valnode = nil
  if value.is_a?(Class) then
    valnode = ClassTopNode.get_class_top_node(value)
    if valnode == nil then
      valnode = ClassTopNode.new(@the_top, value, value.name)
      klassclass = valnode.klassclass
      valnode.type = RubyType::BaseType.from_ruby_class(klassclass)
    end
  else
    valnode = LiteralNode.new(ctn, value)
  end

  ctn.get_constant_tab[name] = valnode
end