43 lines
1.1 KiB
Scala
43 lines
1.1 KiB
Scala
object Test {
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type Color = int;
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trait Shape {
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override def equals(other: Any) = true;
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}
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trait Bordered extends Shape {
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val thickness: int;
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override def equals(other: Any) = other match {
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case that: Bordered => this.thickness == that.thickness;
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case _ => false
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}
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}
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trait Colored extends Shape {
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val color: Color;
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override def equals(other: Any) = other match {
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case that: Colored => this.color == that.color;
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case _ => false
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}
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}
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trait BorderedColoredShape extends Shape with Bordered with Colored {
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override def equals(other: Any) = other match {
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case that: BorderedColoredShape =>
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super.equals(that) &&
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super[Bordered].equals(that) &&
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super[Colored].equals(that)
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case _ => false
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}
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}
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val bcs1 = new BorderedColoredShape {
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val thickness = 1;
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val color = 0;
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}
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val bcs2 = new BorderedColoredShape {
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val thickness = 2;
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val color = 0;
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}
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System.out.println(bcs1 == bcs1);
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System.out.println(bcs1 == bcs2);
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}
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