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| author | Dino Radakovic <dinor@google.com> | 2024-02-15 21:19:18 -0800 |
|---|---|---|
| committer | Copybara-Service <copybara-worker@google.com> | 2024-02-15 21:20:13 -0800 |
| commit | 4580d86d07dbd7614aaedce0b519752334245db6 (patch) | |
| tree | 2439af3a86d87e6038d897db0fd75e9470c53b0e /absl/debugging/internal/demangle.cc | |
| parent | d4578efe7c3a8da81f6e555f6ac1ffa2862b75ed (diff) | |
| download | abseil-4580d86d07dbd7614aaedce0b519752334245db6.tar.gz abseil-4580d86d07dbd7614aaedce0b519752334245db6.tar.bz2 abseil-4580d86d07dbd7614aaedce0b519752334245db6.zip | |
`demangle`: Parse template template and C++20 lambda template param substitutions
These were described in https://github.com/itanium-cxx-abi/cxx-abi/pull/85 and implemented by LLVM.
PiperOrigin-RevId: 607555558
Change-Id: I9991ac88c1fcf63b25b93d93977a83ca343cdb5d
Diffstat (limited to 'absl/debugging/internal/demangle.cc')
| -rw-r--r-- | absl/debugging/internal/demangle.cc | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/absl/debugging/internal/demangle.cc b/absl/debugging/internal/demangle.cc index 1143ba9e..82420c8b 100644 --- a/absl/debugging/internal/demangle.cc +++ b/absl/debugging/internal/demangle.cc @@ -1434,19 +1434,35 @@ static bool ParsePointerToMemberType(State *state) { // <template-param> ::= T_ // ::= T <parameter-2 non-negative number> _ +// ::= TL <level-1> __ +// ::= TL <level-1> _ <parameter-2 non-negative number> _ static bool ParseTemplateParam(State *state) { ComplexityGuard guard(state); if (guard.IsTooComplex()) return false; if (ParseTwoCharToken(state, "T_")) { MaybeAppend(state, "?"); // We don't support template substitutions. - return true; + return true; // ::= T_ } ParseState copy = state->parse_state; if (ParseOneCharToken(state, 'T') && ParseNumber(state, nullptr) && ParseOneCharToken(state, '_')) { MaybeAppend(state, "?"); // We don't support template substitutions. - return true; + return true; // ::= T <parameter-2 non-negative number> _ + } + state->parse_state = copy; + + if (ParseTwoCharToken(state, "TL") && ParseNumber(state, nullptr)) { + if (ParseTwoCharToken(state, "__")) { + MaybeAppend(state, "?"); // We don't support template substitutions. + return true; // ::= TL <level-1> __ + } + + if (ParseOneCharToken(state, '_') && ParseNumber(state, nullptr) && + ParseOneCharToken(state, '_')) { + MaybeAppend(state, "?"); // We don't support template substitutions. + return true; // ::= TL <level-1> _ <parameter-2 non-negative number> _ + } } state->parse_state = copy; return false; |