diff options
Diffstat (limited to 'gcc/go/gofrontend')
| -rw-r--r-- | gcc/go/gofrontend/MERGE | 2 | ||||
| -rw-r--r-- | gcc/go/gofrontend/expressions.cc | 2 | ||||
| -rw-r--r-- | gcc/go/gofrontend/types.cc | 29 |
3 files changed, 22 insertions, 11 deletions
diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE index baf77e31e70..88291d585f9 100644 --- a/gcc/go/gofrontend/MERGE +++ b/gcc/go/gofrontend/MERGE @@ -1,4 +1,4 @@ -5d5ea2fd05dbf369ccc53c93d4846623cdea0c47 +8b3d6091801d485c74a9c92740c69673e39160b0 The first line of this file holds the git revision number of the last merge done from the gofrontend repository. diff --git a/gcc/go/gofrontend/expressions.cc b/gcc/go/gofrontend/expressions.cc index 9792faaa0e4..10ab5b50db9 100644 --- a/gcc/go/gofrontend/expressions.cc +++ b/gcc/go/gofrontend/expressions.cc @@ -11696,7 +11696,7 @@ Field_reference_expression::do_lower(Gogo* gogo, Named_object* function, Location loc = this->location(); std::string s = "fieldtrack \""; - Named_type* nt = this->expr_->type()->named_type(); + Named_type* nt = this->expr_->type()->unalias()->named_type(); if (nt == NULL || nt->named_object()->package() == NULL) s.append(gogo->pkgpath()); else diff --git a/gcc/go/gofrontend/types.cc b/gcc/go/gofrontend/types.cc index 40eccfcadca..11924e6e224 100644 --- a/gcc/go/gofrontend/types.cc +++ b/gcc/go/gofrontend/types.cc @@ -597,10 +597,10 @@ Type::are_compatible_for_comparison(bool is_equality_op, const Type *t1, return false; } - if (t1->named_type() != NULL) - return t1->named_type()->named_type_is_comparable(reason); - else if (t2->named_type() != NULL) - return t2->named_type()->named_type_is_comparable(reason); + if (t1->unalias()->named_type() != NULL) + return t1->unalias()->named_type()->named_type_is_comparable(reason); + else if (t2->unalias()->named_type() != NULL) + return t2->unalias()->named_type()->named_type_is_comparable(reason); else if (t1->struct_type() != NULL) { if (t1->struct_type()->is_struct_incomparable()) @@ -678,6 +678,12 @@ Type::are_assignable(const Type* lhs, const Type* rhs, std::string* reason) if (Type::are_identical(lhs, rhs, true, reason)) return true; + // Ignore aliases, except for error messages. + const Type* lhs_orig = lhs; + const Type* rhs_orig = rhs; + lhs = lhs->unalias(); + rhs = rhs->unalias(); + // The types are assignable if they have identical underlying types // and either LHS or RHS is not a named type. if (((lhs->named_type() != NULL && rhs->named_type() == NULL) @@ -740,15 +746,16 @@ Type::are_assignable(const Type* lhs, const Type* rhs, std::string* reason) { if (rhs->interface_type() != NULL) reason->assign(_("need explicit conversion")); - else if (lhs->named_type() != NULL && rhs->named_type() != NULL) + else if (lhs_orig->named_type() != NULL + && rhs_orig->named_type() != NULL) { - size_t len = (lhs->named_type()->name().length() - + rhs->named_type()->name().length() + size_t len = (lhs_orig->named_type()->name().length() + + rhs_orig->named_type()->name().length() + 100); char* buf = new char[len]; snprintf(buf, len, _("cannot use type %s as type %s"), - rhs->named_type()->message_name().c_str(), - lhs->named_type()->message_name().c_str()); + rhs_orig->named_type()->message_name().c_str(), + lhs_orig->named_type()->message_name().c_str()); reason->assign(buf); delete[] buf; } @@ -768,6 +775,10 @@ Type::are_convertible(const Type* lhs, const Type* rhs, std::string* reason) if (Type::are_assignable(lhs, rhs, reason)) return true; + // Ignore aliases. + lhs = lhs->unalias(); + rhs = rhs->unalias(); + // A pointer to a regular type may not be converted to a pointer to // a type that may not live in the heap, except when converting from // unsafe.Pointer. |