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compiler: reject NOT operator on integer types. 

The Go specification only accepts the NOT operator on boolean
types.

Fixes issue 10.

From-SVN: r187263
This commit is contained in:
Ian Lance Taylor 2012-05-07 18:24:32 +00:00
parent 2fb3f74005
commit 69bc1c3c53
1 changed files with 6 additions and 3 deletions
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9
gcc/go/gofrontend/expressions.cc
View File

@ -3606,8 +3606,7 @@ Unary_expression::do_lower(Gogo*, Named_object*, Statement_inserter*, int)
return Expression::make_error(this->location());
}
if (op == OPERATOR_PLUS || op == OPERATOR_MINUS
|| op == OPERATOR_NOT || op == OPERATOR_XOR)
if (op == OPERATOR_PLUS || op == OPERATOR_MINUS || op == OPERATOR_XOR)
{
Numeric_constant nc;
if (expr->numeric_constant_value(&nc))
@ -3697,10 +3696,10 @@ Unary_expression::eval_constant(Operator op, const Numeric_constant* unc,
else
go_unreachable();
case OPERATOR_NOT:
case OPERATOR_XOR:
break;
case OPERATOR_NOT:
case OPERATOR_AND:
case OPERATOR_MULT:
return false;
@ -3911,6 +3910,10 @@ Unary_expression::do_check_types(Gogo*)
break;
case OPERATOR_NOT:
if (!type->is_boolean_type())
this->report_error(_("expected boolean type"));
break;
case OPERATOR_XOR:
if (type->integer_type() == NULL
&& !type->is_boolean_type())