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Don't get confused using type of erronous binary expression. 

From-SVN: r170043
This commit is contained in:
Ian Lance Taylor 2011-02-11 06:34:57 +00:00
parent 4a087ccf22
commit ced2ec3b26
1 changed files with 11 additions and 0 deletions
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11
gcc/go/gofrontend/expressions.cc
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@ -5412,6 +5412,9 @@ Binary_expression::do_discarding_value()
Type* Type*
Binary_expression::do_type() Binary_expression::do_type()
{ {
if (this->classification() == EXPRESSION_ERROR)
return Type::make_error_type();
switch (this->op_) switch (this->op_)
{ {
case OPERATOR_OROR: case OPERATOR_OROR:
@ -5440,6 +5443,11 @@ Binary_expression::do_type()
return left_type; return left_type;
else if (right_type->is_error_type()) else if (right_type->is_error_type())
return right_type; return right_type;
else if (!Type::are_compatible_for_binop(left_type, right_type))
{
this->report_error(_("incompatible types in binary expression"));
return Type::make_error_type();
}
else if (!left_type->is_abstract() && left_type->named_type() != NULL) else if (!left_type->is_abstract() && left_type->named_type() != NULL)
return left_type; return left_type;
else if (!right_type->is_abstract() && right_type->named_type() != NULL) else if (!right_type->is_abstract() && right_type->named_type() != NULL)
@ -5667,6 +5675,9 @@ Binary_expression::check_operator_type(Operator op, Type* type,
void void
Binary_expression::do_check_types(Gogo*) Binary_expression::do_check_types(Gogo*)
{ {
if (this->classification() == EXPRESSION_ERROR)
return;
Type* left_type = this->left_->type(); Type* left_type = this->left_->type();
Type* right_type = this->right_->type(); Type* right_type = this->right_->type();
if (left_type->is_error_type() || right_type->is_error_type()) if (left_type->is_error_type() || right_type->is_error_type())