Rect.this - multiple declarations

Function Rect.this

constructs rectangle using left, top, right, bottom coordinates

ref this(
  int x0,
  int y0,
  int x1,
  int y1
) nothrow @nogc @safe;

Function Rect.this

constructs rectangle using two points - (left, top), (right, bottom) coordinates

ref this(
  Point pt0,
  Point pt1
) nothrow @nogc @safe;