From 2576dd68a60b3f317f89c8c007d0eea63151a793 Mon Sep 17 00:00:00 2001 From: David Malcolm Date: Wed, 4 Dec 2024 17:34:27 -0500 Subject: [PATCH] c++: give suggestion on misspelled class name [PR116771] gcc/cp/ChangeLog: PR c++/116771 * parser.cc (cp_parser_name_lookup_error): Provide suggestions for the case of complete failure where there is no scope. gcc/testsuite/ChangeLog: PR c++/116771 * g++.dg/spellcheck-pr116771.C: New test. Signed-off-by: David Malcolm --- gcc/cp/parser.cc | 16 +++++++++++++++- gcc/testsuite/g++.dg/spellcheck-pr116771.C | 9 +++++++++ 2 files changed, 24 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/g++.dg/spellcheck-pr116771.C diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc index 2995a11c60f..80e14b1bd92 100644 --- a/gcc/cp/parser.cc +++ b/gcc/cp/parser.cc @@ -3399,7 +3399,21 @@ cp_parser_name_lookup_error (cp_parser* parser, error_at (location, "%<%T::%E%> has not been declared", parser->object_scope, name); else - error_at (location, "%qE has not been declared", name); + { + auto_diagnostic_group d; + name_hint hint + = lookup_name_fuzzy (name, FUZZY_LOOKUP_TYPENAME, location); + if (const char *suggestion = hint.suggestion ()) + { + gcc_rich_location richloc (location); + richloc.add_fixit_replace (suggestion); + error_at (&richloc, + "%qE has not been declared; did you mean %qs?", + name, suggestion); + } + else + error_at (location, "%qE has not been declared", name); + } } else if (parser->scope && parser->scope != global_namespace) { diff --git a/gcc/testsuite/g++.dg/spellcheck-pr116771.C b/gcc/testsuite/g++.dg/spellcheck-pr116771.C new file mode 100644 index 00000000000..fd8bd6d46cb --- /dev/null +++ b/gcc/testsuite/g++.dg/spellcheck-pr116771.C @@ -0,0 +1,9 @@ +class layout_printer +{ + void print_newline (); +}; + +void +layout_pirnter::print_newline () // { dg-error "'layout_pirnter' has not been declared; did you mean 'layout_printer'" } +{ +}