diff options
Diffstat (limited to 'gcc/go/gofrontend/expressions.h')
| -rw-r--r-- | gcc/go/gofrontend/expressions.h | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/gcc/go/gofrontend/expressions.h b/gcc/go/gofrontend/expressions.h index eb4406d..66e05a7 100644 --- a/gcc/go/gofrontend/expressions.h +++ b/gcc/go/gofrontend/expressions.h @@ -360,10 +360,11 @@ class Expression // This is called if the value of this expression is being // discarded. This issues warnings about computed values being - // unused. - void + // unused. This returns true if all is well, false if it issued an + // error message. + bool discarding_value() - { this->do_discarding_value(); } + { return this->do_discarding_value(); } // Return whether this is an error expression. bool @@ -689,7 +690,7 @@ class Expression { return false; } // Called by the parser if the value is being discarded. - virtual void + virtual bool do_discarding_value(); // Child class holds type. @@ -1205,7 +1206,7 @@ class Binary_expression : public Expression bool do_numeric_constant_value(Numeric_constant*) const; - void + bool do_discarding_value(); Type* @@ -1373,9 +1374,9 @@ class Call_expression : public Expression virtual Expression* do_lower(Gogo*, Named_object*, Statement_inserter*, int); - void + bool do_discarding_value() - { } + { return true; } virtual Type* do_type(); @@ -2056,9 +2057,9 @@ class Receive_expression : public Expression do_traverse(Traverse* traverse) { return Expression::traverse(&this->channel_, traverse); } - void + bool do_discarding_value() - { } + { return true; } Type* do_type(); |