Class: YTLJit::VM::Node::ConstantAssignNode

Inherits:

VariableRefCommonNode

• Object
• BaseNode
• VariableRefCommonNode
• YTLJit::VM::Node::ConstantAssignNode

Includes:

HaveChildlenMixin, NodeUtil, TypeListWithoutSignature

Defined in:

lib/ytljit/vm.rb

Constant Summary

Constants inherited from BaseNode

BaseNode::ESCAPE_LEVEL

Constants included from AbsArch

AbsArch::AL, AbsArch::BL, AbsArch::CL, AbsArch::DL, AbsArch::FUNC_ARG, AbsArch::FUNC_ARG_YTL, AbsArch::FUNC_FLOAT_ARG, AbsArch::FUNC_FLOAT_ARG_YTL, AbsArch::INDIRECT_BPR, AbsArch::INDIRECT_RETR, AbsArch::INDIRECT_SPR, AbsArch::INDIRECT_TMPR, AbsArch::INDIRECT_TMPR2, AbsArch::INDIRECT_TMPR3

Constants included from SSE

SSE::XMM0, SSE::XMM1, SSE::XMM2, SSE::XMM3, SSE::XMM4, SSE::XMM5, SSE::XMM6, SSE::XMM7

Instance Attribute Summary

Attributes included from HaveChildlenMixin

#body

Attributes inherited from BaseNode

#code_space, #debug_info, #element_node_list, #id, #is_escape, #parent, #ti_observee, #ti_observer, #type

Instance Method Summary

• #collect_candidate_type(context) ⇒ Object
• #compile(context) ⇒ Object
• #compile_get_constant(context) ⇒ Object

  def type @value.type end.

• #initialize(parent, klass, name, value) ⇒ ConstantAssignNode constructor

  A new instance of ConstantAssignNode.

• #traverse_childlen {|@body| ... } ⇒ Object

Methods included from TypeListWithoutSignature

#add_type, #set_type_list, #type_list, #type_list_initvar

Methods included from NodeUtil

#search_class_top, #search_end, #search_frame_info, #search_top

Methods inherited from BaseNode

#add_element_node, #add_element_node_backward, #collect_info, #decide_type, #decide_type_core, #decide_type_once, #gen_type_inference_proc, #get_constant_value, #inference_type, #marge_element_node, #marge_type, #same_type, #set_escape_node, #set_escape_node_backward, #ti_add_observer, #ti_changed, #ti_del_link, #ti_reset, #ti_update

Methods included from TypeListWithSignature

#add_type, #set_type_list, #type_list, #type_list_initvar

Methods included from Inspect

#inspect_by_graph

Constructor Details

#initialize(parent, klass, name, value) ⇒ ConstantAssignNode

Returns a new instance of ConstantAssignNode.

# File 'lib/ytljit/vm.rb', line 3521

def initialize(parent, klass, name, value)
  super(parent)
  @name = name
  @class_top = klass # .search_class_top
  
  pvalue = nil
  @value = value
  @value_node = value
  if !value.is_a?(LiteralNode) then
    @value_node = self
  end

  if klass.is_a?(ClassTopNode) then
    klass.constant_tab[@name] = @value_node
  else
    pp klass.class
    raise "Not Implemented yet for set constant for dynamic class"
  end
  @constant_area = nil
end

Instance Method Details

#collect_candidate_type(context) ⇒ Object

# File 'lib/ytljit/vm.rb', line 3546

def collect_candidate_type(context)
  sig = context.to_signature
  context = @value.collect_candidate_type(context)
  same_type(self, @value, sig, sig, context)
  @body.collect_candidate_type(context)
end

#compile(context) ⇒ Object

# File 'lib/ytljit/vm.rb', line 3573

def compile(context)
  if !@value.is_a?(LiteralNode) then
    asm = context.assembler
    valproc = lambda { 4 }
    varnilval = OpVarMemAddress.new(valproc)
    @constant_area = asm.add_value_entry_no_cache(varnilval)
    @constant_area = @constant_area.to_immidiate
    context = @value.compile(context)
    rtype = decide_type_once(context.to_signature)
    tmpr = TMPR
    if rtype.ruby_type == Float and !rtype.boxed then
      tmpr = XMM0
    end
    
    asm.with_retry do
      asm.push(TMPR2)
      asm.mov(tmpr, context.ret_reg)
      asm.mov(TMPR2, @constant_area)
      asm.mov(INDIRECT_TMPR2, tmpr)
      asm.pop(TMPR2)
    end
  end

  @body.compile(context)
end

#compile_get_constant(context) ⇒ Object

def type

  @value.type
end

# File 'lib/ytljit/vm.rb', line 3557

def compile_get_constant(context)
  asm = context.assembler
  rtype = decide_type_once(context.to_signature)
  retr = RETR
  if rtype.ruby_type == Float and !rtype.boxed then
    retr = XMM0
  end
  asm.with_retry do
    asm.mov(TMPR, @constant_area)
    asm.mov(retr, INDIRECT_TMPR)
  end
  context.ret_reg = retr
  context.ret_node = self
  context
end

#traverse_childlen {|@body| ... } ⇒ Object

Yields:

• (@body)

# File 'lib/ytljit/vm.rb', line 3542

def traverse_childlen
  yield @body
end