diff options
Diffstat (limited to 'gcc/fortran/resolve.c')
| -rw-r--r-- | gcc/fortran/resolve.c | 31 |
1 files changed, 26 insertions, 5 deletions
diff --git a/gcc/fortran/resolve.c b/gcc/fortran/resolve.c index ca89f88..3767992 100644 --- a/gcc/fortran/resolve.c +++ b/gcc/fortran/resolve.c @@ -4511,11 +4511,12 @@ resolve_symbol (gfc_symbol * sym) int formal_ns_save, check_constant, mp_flag; int i, flag; gfc_namelist *nl; - gfc_symtree * symtree; - gfc_symtree * this_symtree; - gfc_namespace * ns; - gfc_component * c; - gfc_formal_arglist * arg; + gfc_symtree *symtree; + gfc_symtree *this_symtree; + gfc_namespace *ns; + gfc_component *c; + gfc_formal_arglist *arg; + gfc_expr *constructor_expr; if (sym->attr.flavor == FL_UNKNOWN) { @@ -4857,6 +4858,26 @@ resolve_symbol (gfc_symbol * sym) return; } + /* 4th constraint in section 11.3: "If an object of a type for which + component-initialization is specified (R429) appears in the + specification-part of a module and does not have the ALLOCATABLE + or POINTER attribute, the object shall have the SAVE attribute." */ + + if (sym->ts.type == BT_DERIVED && !(sym->value || flag)) + constructor_expr = gfc_default_initializer (&sym->ts); + + if (sym->ns->proc_name + && sym->ns->proc_name->attr.flavor == FL_MODULE + && constructor_expr + && !sym->ns->save_all && !sym->attr.save + && !sym->attr.pointer && !sym->attr.allocatable) + { + gfc_error("Object '%s' at %L must have the SAVE attribute %s", + sym->name, &sym->declared_at, + "for default initialization of a component"); + return; + } + /* Assign default initializer. */ if (sym->ts.type == BT_DERIVED && !(sym->value || flag) && !sym->attr.pointer) |