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rustc: Demand unification of both sides of a binop

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Issue #500
This commit is contained in:
Brian Anderson 2011-06-17 11:01:38 -07:00
parent 1dbc0442cd
commit 753da64fd6
1 changed files with 5 additions and 0 deletions
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5
src/comp/middle/typeck.rs
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@ -1522,7 +1522,12 @@ fn check_expr(&@fn_ctxt fcx, &@ast::expr expr) {
case (ast::expr_binary(?binop, ?lhs, ?rhs, ?a)) {
check_expr(fcx, lhs);
check_expr(fcx, rhs);
auto lhs_t = expr_ty(fcx.ccx.tcx, lhs);
auto rhs_t = expr_ty(fcx.ccx.tcx, rhs);
demand::autoderef(fcx, expr.span, lhs_t, rhs_t, AUTODEREF_OK);
// FIXME: Binops have a bit more subtlety than this.
auto t = strip_boxes(fcx, expr.span, lhs_t);