Implement value classes with phantom parameters #2926
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In this implementation the first parameter of the value class must be a subtype of scala.Any. Every other parameter must be phantom.
OlivierBlanvillain
approved these changes
Aug 23, 2017
| ctx.error("value class parameter must not be phantom", param.pos) | ||
| case _ => | ||
| ctx.error(ValueClassNeedsExactlyOneValParam(clazz), clazz.pos) | ||
| ctx.error("value class first parameter must not be phantom.", param.pos) |
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In this implementation the first parameter of the
value class must be a subtype of scala.Any. Every
other parameter must be phantom.