Class: YTLJit::AsmType::Struct

Inherits:
TypeCommon show all
Defined in:
lib/ytljit/struct.rb

Direct Known Subclasses

Union

Instance Attribute Summary

Attributes inherited from TypeCommon

#alignment, #type

Instance Method Summary collapse

Constructor Details

#initialize(*spec) ⇒ Struct

Returns a new instance of Struct.



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# File 'lib/ytljit/struct.rb', line 21

def initialize(*spec)
  @member = []
  @size = nil
  stat = 0
  curvar = []
  spec.each do |token|
    case stat
    when 0
      curvar.push token
      stat = 1
      
    when 1
      curvar.push token
      stat = 2
      
    when 2
      if token.is_a?(Integer) then
        curvar.push token
        @member.push curvar
        curvar = []
        stat = 0
      else
        @member.push curvar
        if token then
          curvar = [token]
          stat = 1
        else
          curvar = []
          stat = 0
        end
      end
    end
    # assert(stat == 0)
  end
  @member.push curvar
end

Instance Method Details

#[](name, base = 0) ⇒ Object 



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# File 'lib/ytljit/struct.rb', line 91

def [](name, base = 0)
  offset = 0
  @member.each do |e|
    if e[1] == name then
      return StructMember.new(e[0], offset + base)
    end
    offset += e[2] ? e[2] : e[0].size
  end
  raise "No such member #{name} in #{self}"
end

#offset_of(name, base = 0) ⇒ Object 



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

def offset_of(name, base = 0)
  offset = 0
  @member.each do |e|
    if e[1] == name then
      return offset + base
    end
    offset += e[2] ? e[2] : e[0].size
  end
  raise "No such member #{name} in #{self}"
end

#size ⇒ Object 



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# File 'lib/ytljit/struct.rb', line 79

def size
  if @size then
    @size
  else
    @size = 0
    @member.each do |e|
      @size += e[2] ? e[2] : e[0].size
    end
    @size
  end
end

#type_of(name) ⇒ Object 



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# File 'lib/ytljit/struct.rb', line 69

def type_of(name)
  offset = 0
  @member.each do |e|
    if e[1] == name then
      return e[0]
    end
  end
  raise "No such member #{name} in #{self}"
end