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First attemt at supporting explicit discriminant numbers on tag variants #1397

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First attemt at supporting explicit discriminant numbers on tag variants #1397

wants to merge 2 commits into from

Commits on Jan 10, 2012

  1. Support explicit discriminant numbers on tag variants. 

    Addresses issue rust-lang#1393.

For now disallow disr. values unless all variants use nullary
contractors (i.e. "enum-like").

Disr. values are now encoded in the crate metadata, but only when it
will differ from the inferred value based on the order.
    @kevina
    kevina committed Jan 10, 2012
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  2. Add support for casting enum-like tags to scalar values.

    @kevina
    kevina committed Jan 10, 2012
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