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| author |  Abseil Team <absl-team@google.com> | 2022-09-30 12:11:27 -0700 |
|---|---|---|
| committer |  Copybara-Service <copybara-worker@google.com> | 2022-09-30 12:12:26 -0700 |
| commit | 7f3c0d781134d25b24e0b55346482a2d366bf59b (patch) | |
| tree | 922945db62ad94b4aaad106e88454e196a9c1f16 /absl/strings/str_cat_test.cc | |
| parent | e8304a5c62576cdad9d9265449ab5575115fd4f2 (diff) | |
Allows absl::StrCat to accept types that implement AbslStringify()
PiperOrigin-RevId: 478050535
Change-Id: I8e4a4b01aceb8d712476101633eac0ce8647823a
Diffstat (limited to 'absl/strings/str_cat_test.cc')
| -rw-r--r-- | absl/strings/str_cat_test.cc | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/absl/strings/str_cat_test.cc b/absl/strings/str_cat_test.cc index 69df2502..868b9bce 100644 --- a/absl/strings/str_cat_test.cc +++ b/absl/strings/str_cat_test.cc @@ -612,4 +612,24 @@ TEST(Numbers, TestFunctionsMovedOverFromNumbersMain) { TestFastPrints(); } +struct PointStringify { + template <typename FormatSink> + friend void AbslStringify(FormatSink& sink, const PointStringify& p) { + sink.Append("("); + sink.Append(absl::StrCat(p.x)); + sink.Append(", "); + sink.Append(absl::StrCat(p.y)); + sink.Append(")"); + } + + double x = 10.0; + double y = 20.0; +}; + +TEST(StrCat, AbslStringifyExample) { + PointStringify p; + EXPECT_EQ(absl::StrCat(p), "(10, 20)"); + EXPECT_EQ(absl::StrCat("a ", p, " z"), "a (10, 20) z"); +} + } // namespace |