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| author | Chris Mihelich <cmihelic@google.com> | 2024-05-30 14:10:22 -0700 |
|---|---|---|
| committer | Copybara-Service <copybara-worker@google.com> | 2024-05-30 14:11:24 -0700 |
| commit | 9a2da1a407278eb70be13e5cd392a898cfc11792 (patch) | |
| tree | cfc40c318bf43a95df006a1d6997df1ca841a0cb /absl/debugging/internal/demangle_test.cc | |
| parent | c8671e7542ebfd928ee3e239315c8784fdd88e1c (diff) | |
| download | abseil-9a2da1a407278eb70be13e5cd392a898cfc11792.tar.gz abseil-9a2da1a407278eb70be13e5cd392a898cfc11792.tar.bz2 abseil-9a2da1a407278eb70be13e5cd392a898cfc11792.zip | |
Parse <discriminator> more accurately.
PiperOrigin-RevId: 638778076
Change-Id: I97b9bab2d1b6f87d2f449777145f932949d61a38
Diffstat (limited to 'absl/debugging/internal/demangle_test.cc')
| -rw-r--r-- | absl/debugging/internal/demangle_test.cc | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/absl/debugging/internal/demangle_test.cc b/absl/debugging/internal/demangle_test.cc index 58832e99..2895736c 100644 --- a/absl/debugging/internal/demangle_test.cc +++ b/absl/debugging/internal/demangle_test.cc @@ -479,6 +479,53 @@ TEST(Demangle, Clones) { EXPECT_FALSE(Demangle("_ZL3Foov.isra.2.constprop.", tmp, sizeof(tmp))); } +TEST(Demangle, Discriminators) { + char tmp[80]; + + // Source: + // + // using Thunk = void (*)(); + // + // Thunk* f() { + // static Thunk thunks[12] = {}; + // + // #define THUNK(i) [backslash here] + // do { struct S { static void g() {} }; thunks[i] = &S::g; } while (0) + // + // THUNK(0); + // [... repeat for 1 to 10 ...] + // THUNK(11); + // + // return thunks; + // } + // + // The test inputs are manglings of some of the S::g member functions. + + // The first one omits the discriminator. + EXPECT_TRUE(Demangle("_ZZ1fvEN1S1gEv", tmp, sizeof(tmp))); + EXPECT_STREQ("f()::S::g()", tmp); + + // The second one encodes 0. + EXPECT_TRUE(Demangle("_ZZ1fvEN1S1gE_0v", tmp, sizeof(tmp))); + EXPECT_STREQ("f()::S::g()", tmp); + + // The eleventh one encodes 9. + EXPECT_TRUE(Demangle("_ZZ1fvEN1S1gE_9v", tmp, sizeof(tmp))); + EXPECT_STREQ("f()::S::g()", tmp); + + // The twelfth one encodes 10 with extra underscores delimiting it. + EXPECT_TRUE(Demangle("_ZZ1fvEN1S1gE__10_v", tmp, sizeof(tmp))); + EXPECT_STREQ("f()::S::g()", tmp); +} + +TEST(Demangle, SingleDigitDiscriminatorFollowedByADigit) { + char tmp[80]; + + // Don't parse 911 as a number. + EXPECT_TRUE(Demangle("_ZZ1fvEN1S1gE_911return_type", tmp, sizeof(tmp))); + EXPECT_STREQ("f()::S::g()", tmp); +} + TEST(Demangle, LiteralOfGlobalNamespaceEnumType) { char tmp[80]; |