Report error on missing named argument (#1796)

This commit is contained in:
Victor Zverovich 2020-07-30 07:16:15 -07:00
parent d82fdcc9e2
commit 21c8b5c142
2 changed files with 3 additions and 2 deletions

View File

@ -1913,7 +1913,7 @@ template <typename Context> class basic_format_args {
}
template <typename Char> int get_id(basic_string_view<Char> name) const {
if (!has_named_args()) return {};
if (!has_named_args()) return -1;
const auto& named_args =
(is_packed() ? values_[-1] : args_[-1].value_).named_args;
for (size_t i = 0; i < named_args.size; ++i) {

View File

@ -543,7 +543,6 @@ TEST(FormatterTest, ManyArgs) {
TEST(FormatterTest, NamedArg) {
EXPECT_EQ("1/a/A", format("{_1}/{a_}/{A_}", fmt::arg("a_", 'a'),
fmt::arg("A_", "A"), fmt::arg("_1", 1)));
EXPECT_THROW_MSG(format("{a}"), format_error, "argument not found");
EXPECT_EQ(" -42", format("{0:{width}}", -42, fmt::arg("width", 4)));
EXPECT_EQ("st", format("{0:.{precision}}", "str", fmt::arg("precision", 2)));
EXPECT_EQ("1 2", format("{} {two}", 1, fmt::arg("two", 2)));
@ -553,6 +552,8 @@ TEST(FormatterTest, NamedArg) {
fmt::arg("i", 0), fmt::arg("j", 0), fmt::arg("k", 0),
fmt::arg("l", 0), fmt::arg("m", 0), fmt::arg("n", 0),
fmt::arg("o", 0), fmt::arg("p", 0)));
EXPECT_THROW_MSG(format("{a}"), format_error, "argument not found");
EXPECT_THROW_MSG(format("{a}", 42), format_error, "argument not found");
}
TEST(FormatterTest, AutoArgIndex) {