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| author | Chris Mihelich <cmihelic@google.com> | 2024-06-04 14:28:23 -0700 |
|---|---|---|
| committer | Copybara-Service <copybara-worker@google.com> | 2024-06-04 14:29:31 -0700 |
| commit | d8e17c009185a3bb305d774aa9e41f3c5de605f6 (patch) | |
| tree | 350c3ea56cd8d0534b396907897470bb6b5fba98 /absl/debugging/internal/demangle.cc | |
| parent | 36d1644be1fe815cef318e52a3ef4c8f5c50ea01 (diff) | |
| download | abseil-d8e17c009185a3bb305d774aa9e41f3c5de605f6.tar.gz abseil-d8e17c009185a3bb305d774aa9e41f3c5de605f6.tar.bz2 abseil-d8e17c009185a3bb305d774aa9e41f3c5de605f6.zip | |
Demangle types nested under vendor extended types.
PiperOrigin-RevId: 640284003
Change-Id: I3ad2d971383513c7eeb5e3179e50c036cf7aa020
Diffstat (limited to 'absl/debugging/internal/demangle.cc')
| -rw-r--r-- | absl/debugging/internal/demangle.cc | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/absl/debugging/internal/demangle.cc b/absl/debugging/internal/demangle.cc index 99461f3f..e9edd4f8 100644 --- a/absl/debugging/internal/demangle.cc +++ b/absl/debugging/internal/demangle.cc @@ -599,6 +599,7 @@ static bool ParseDecltype(State *state); static bool ParseType(State *state); static bool ParseCVQualifiers(State *state); static bool ParseBuiltinType(State *state); +static bool ParseVendorExtendedType(State *state); static bool ParseFunctionType(State *state); static bool ParseBareFunctionType(State *state); static bool ParseOverloadAttribute(State *state); @@ -785,6 +786,7 @@ static bool ParseNestedName(State *state) { // <template-prefix> ::= <prefix> <(template) unqualified-name> // ::= <template-param> // ::= <substitution> +// ::= <vendor-extended-type> static bool ParsePrefix(State *state) { ComplexityGuard guard(state); if (guard.IsTooComplex()) return false; @@ -793,6 +795,11 @@ static bool ParsePrefix(State *state) { MaybeAppendSeparator(state); if (ParseTemplateParam(state) || ParseDecltype(state) || ParseSubstitution(state, /*accept_std=*/true) || + // Although the official grammar does not mention it, nested-names + // shaped like Nu14__some_builtinIiE6memberE occur in practice, and it + // is not clear what else a compiler is supposed to do when a + // vendor-extended type has named members. + ParseVendorExtendedType(state) || ParseUnscopedName(state) || (ParseOneCharToken(state, 'M') && ParseUnnamedTypeName(state))) { has_something = true; @@ -1373,7 +1380,7 @@ static bool ParseCVQualifiers(State *state) { } // <builtin-type> ::= v, etc. # single-character builtin types -// ::= u <source-name> [I <type> E] +// ::= <vendor-extended-type> // ::= Dd, etc. # two-character builtin types // // Not supported: @@ -1397,6 +1404,16 @@ static bool ParseBuiltinType(State *state) { } } + return ParseVendorExtendedType(state); +} + +// <vendor-extended-type> ::= u <source-name> [I <type> E] +// +// NOTE: [I <type> E] is a vendor extension (http://shortn/_FrINpH1XC5). +static bool ParseVendorExtendedType(State *state) { + ComplexityGuard guard(state); + if (guard.IsTooComplex()) return false; + ParseState copy = state->parse_state; if (ParseOneCharToken(state, 'u') && ParseSourceName(state)) { copy = state->parse_state; |