diff options
Diffstat (limited to 'gcc/fortran/frontend-passes.c')
| -rw-r--r-- | gcc/fortran/frontend-passes.c | 65 |
1 files changed, 57 insertions, 8 deletions
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c index d5d71b5..69f9ca6 100644 --- a/gcc/fortran/frontend-passes.c +++ b/gcc/fortran/frontend-passes.c @@ -5493,26 +5493,75 @@ check_externals_expr (gfc_expr **ep, int *walk_subtrees ATTRIBUTE_UNUSED, return check_externals_procedure (sym, loc, actual); } -/* Called routine. */ +/* Function to check if any interface clashes with a global + identifier, to be invoked via gfc_traverse_ns. */ -void -gfc_check_externals (gfc_namespace *ns) +static void +check_against_globals (gfc_symbol *sym) { + gfc_gsymbol *gsym; + gfc_symbol *def_sym = NULL; + const char *sym_name; + char buf [200]; - gfc_clear_error (); + if (sym->attr.if_source != IFSRC_IFBODY || sym->attr.flavor != FL_PROCEDURE + || sym->attr.generic || sym->error) + return; - /* Turn errors into warnings if the user indicated this. */ + if (sym->binding_label) + sym_name = sym->binding_label; + else + sym_name = sym->name; - if (!pedantic && flag_allow_argument_mismatch) - gfc_errors_to_warnings (true); + gsym = gfc_find_gsymbol (gfc_gsym_root, sym_name); + if (gsym && gsym->ns) + gfc_find_symbol (sym->name, gsym->ns, 0, &def_sym); + + if (!def_sym || def_sym->error || def_sym->attr.generic) + return; + + buf[0] = 0; + gfc_compare_interfaces (sym, def_sym, sym->name, 0, 1, buf, sizeof(buf), + NULL, NULL, NULL); + if (buf[0] != 0) + { + gfc_warning (0, "%s between %L and %L", buf, &def_sym->declared_at, + &sym->declared_at); + sym->error = 1; + def_sym->error = 1; + } + +} + +/* Do the code-walkling part for gfc_check_externals. */ +static void +gfc_check_externals0 (gfc_namespace *ns) +{ gfc_code_walker (&ns->code, check_externals_code, check_externals_expr, NULL); for (ns = ns->contained; ns; ns = ns->sibling) { if (ns->code == NULL || ns->code->op != EXEC_BLOCK) - gfc_check_externals (ns); + gfc_check_externals0 (ns); } +} + +/* Called routine. */ + +void gfc_check_externals (gfc_namespace *ns) +{ + gfc_clear_error (); + + /* Turn errors into warnings if the user indicated this. */ + + if (!pedantic && flag_allow_argument_mismatch) + gfc_errors_to_warnings (true); + + gfc_check_externals0 (ns); + gfc_traverse_ns (ns, check_against_globals); + gfc_errors_to_warnings (false); } + |