Module: Mirah::JVM::Types::ArgumentConversion

Included in:
Intrinsic, JavaCallable
Defined in:
lib/mirah/jvm/types/methods.rb

Instance Method Summary collapse

Instance Method Details

#convert_args(compiler, values, types = nil) ⇒ Object 



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# File 'lib/mirah/jvm/types/methods.rb', line 38

def convert_args(compiler, values, types=nil)
  # TODO boxing/unboxing
  types ||= argument_types
  needs_to_build_varargs_array = false
  
  if respond_to?(:varargs?) && varargs?
    non_varargs_types = types[0..-2]
    non_varargs_values = values.first non_varargs_types.size

    varargs_values = values.to_a.last(values.size - non_varargs_values.size)
    varargs_type = types.last

    unless varargs_values.length == 1 &&
      varargs_type.compatible?(compiler.inferred_type(varargs_values.first))
      needs_to_build_varargs_array = true
      values = non_varargs_values
    end
  end

  values_and_types = values.zip(types)
  
  values_and_types.each do |value, type|
    compiler.visit(value, true)
    in_type = compiler.inferred_type(value)
    if in_type.primitive? && type != in_type
      in_type.compile_widen(compiler.method, type)
    end
  end

  if needs_to_build_varargs_array
    compiler.visitVarargsArray(varargs_type, varargs_values)
  end
end