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Fix various bugs with table/set attributes.

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- Identifiers that are initialized with set()/table() constructor
  expressions now inherit attributes from the expression.  Before,
  statements like

     const i: set[string] = set() &redef;

  associated the attribute with the set() constructor, but not the
  "i" identifier, preventing redefinition.  Addresses #866.

- Allow &default attribute to apply to tables initialized as empty
  (via either "{ }" or "table()") or if the expression supplied to it
  can evaluate to a type that's promotable to the same yield type as
  the table.
This commit is contained in:
Jon Siwek 2012-11-29 15:44:03 -06:00
parent 00f7bbda96
commit f7e07f5f09
6 changed files with 249 additions and 1 deletions
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2
src/Expr.cc
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@ -3445,7 +3445,7 @@ Val* SetConstructorExpr::Eval(Frame* f) const
if ( IsError() )
return 0;
TableVal* aggr = new TableVal(type->AsTableType(), 0);
TableVal* aggr = new TableVal(type->AsTableType(), attrs);
const expr_list& exprs = op->AsListExpr()->Exprs();
loop_over_list(exprs, i)