diff options
Diffstat (limited to 'absl/flags/internal/usage.cc')
| -rw-r--r-- | absl/flags/internal/usage.cc | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/absl/flags/internal/usage.cc b/absl/flags/internal/usage.cc index 0304851..181c35c 100644 --- a/absl/flags/internal/usage.cc +++ b/absl/flags/internal/usage.cc @@ -47,6 +47,27 @@ namespace absl { namespace flags_internal { namespace { +absl::string_view TypenameForHelp(const flags_internal::CommandLineFlag& flag) { + // Only report names of v1 built-in types +#define HANDLE_V1_BUILTIN_TYPE(t) \ + if (flag.IsOfType<t>()) { \ + return #t; \ + } + + HANDLE_V1_BUILTIN_TYPE(bool); + HANDLE_V1_BUILTIN_TYPE(int32_t); + HANDLE_V1_BUILTIN_TYPE(int64_t); + HANDLE_V1_BUILTIN_TYPE(uint64_t); + HANDLE_V1_BUILTIN_TYPE(double); +#undef HANDLE_V1_BUILTIN_TYPE + + if (flag.IsOfType<std::string>()) { + return "string"; + } + + return ""; +} + // This class is used to emit an XML element with `tag` and `text`. // It adds opening and closing tags and escapes special characters in the text. // For example: @@ -186,7 +207,7 @@ void FlagHelpHumanReadable(const flags_internal::CommandLineFlag& flag, // Flag data type (for V1 flags only). if (!flag.IsAbseilFlag() && !flag.IsRetired()) { - printer.Write(absl::StrCat("type: ", flag.Typename(), ";")); + printer.Write(absl::StrCat("type: ", TypenameForHelp(flag), ";")); } // The listed default value will be the actual default from the flag @@ -223,6 +244,9 @@ void FlagsHelpImpl(std::ostream& out, flags_internal::FlagKindFilter filter_cb, } else { // XML schema is not a part of our public API for now. out << "<?xml version=\"1.0\"?>\n" + << "<!-- This output should be used with care. We do not report type " + "names for flags with user defined types -->\n" + << "<!-- Prefer flag only_check_args for validating flag inputs -->\n" // The document. << "<AllFlags>\n" // The program name and usage. |