feat(extraction): universal recovery of macro-mangled C/C++ function names (#1102)

* feat(extraction): universal recovery of macro-mangled C/C++ function names

The curated inline-macro blank list (#1100/#1101) can't enumerate every
library's macro. Add a universal post-parse net so a function is findable by
name regardless of which macro decorates it, plus a batch of common libraries
to the curated list for full name+return-type recovery.

- recoverMangledCppName: after extraction, recover the real identifier from a
  name still mangled by an un-blanked macro (`MACRO Ret name(…)` misparses to
  "Ret name"). It's a new `recoverMangledName` extractor hook wired only onto
  C/C++, applied to every name they produce. Safe by construction: it only
  touches an already-mangled name (an internal space that isn't a legit
  `operator …`/destructor), so a clean name is returned unchanged; guarded
  against the `Ret (name)` parenthesized-name idiom and bare primitives. Scoped
  to C/C++ so Kotlin/Scala backtick identifiers (which legitimately contain
  spaces) are never touched.
- Curated list extended past UE/pugixml/Godot/Boost to Qt (Q_INVOKABLE, …),
  Folly, Abseil, LLVM, V8, Eigen, and rapidjson.

Validated on CARLA (large UE project, 1131 C++/h files) vs the pre-fix baseline:
function-name mangles 440 -> 6, 431 fixed, and — critically — 0 regressions
(the salvage also recovers names that the pre-parse's own non-local error-recovery
shifts would otherwise re-mangle, erasing the 7 shifts seen in #1101). The 6
residual are all the moodycamel `Ret (name)` idiom, correctly left alone. On a
made-up macro with no list entry (`WEBKIT_EXPORT WTFString compute()`), the name
`compute` is still recovered. Full suite green; eleven regression/safety tests added.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* docs(changelog): note universal C++ macro-mangled name recovery (#1102)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Colby Mchenry
2026-07-01 09:29:20 -05:00
committed by GitHub
co-authored by Claude Opus 4.8
parent a164ceae8b
commit cb20a3bf7f
5 changed files with 122 additions and 1 deletions
+1
View File
@@ -15,6 +15,7 @@ and adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
- C++ methods that return a reference, and user-defined conversion operators, are now indexed under their correct names. An inline getter like `const FGameplayTagContainer& GetActiveTags() const` — everywhere in Unreal Engine headers — was indexed as `& GetActiveTags() const` instead of `GetActiveTags`, and a conversion operator like `operator EALSMovementState() const` kept its trailing `() const` instead of reading `operator EALSMovementState`. In both cases the garbled name meant you couldn't find the symbol by name and its callers weren't linked. Both now read cleanly, matching how pointer-returning and value-returning methods already worked. (#1096)
- C++ functions written with an inline-specifier macro before the return type are now indexed correctly. In Unreal Engine, inline helpers are commonly written `FORCEINLINE FString GetEnumerationToString(...)`; the `FORCEINLINE` macro made the parser read the return type as part of the function's name (`FString GetEnumerationToString` instead of `GetEnumerationToString`) and lose the real return type, so the function couldn't be found by name and its callers weren't linked. CodeGraph now recognizes the standard Unreal inline macros (`FORCEINLINE`, `FORCENOINLINE`, `FORCEINLINE_DEBUGGABLE`), so both the name and the return type are captured. (#1100)
- The same function-name recovery now covers inline macros from common third-party C++ libraries, not just Unreal Engine — including pugixml (`PUGI__FN`, `PUGIXML_FUNCTION`), Godot (`_FORCE_INLINE_`), Boost (`BOOST_FORCEINLINE`), and generic `ALWAYS_INLINE` / `FORCE_INLINE`. Functions decorated with these are now indexed under their real names. On a large Unreal project vendoring these libraries this cleaned up the large majority of remaining function-name garbling. (#1101)
- C++ function names are now recovered even when decorated with a macro CodeGraph doesn't specifically know about. A function written `SOME_LIBRARY_MACRO ReturnType doWork(...)` previously had the macro or return type absorbed into its name whenever the macro wasn't one CodeGraph recognized; now the real name (`doWork`) is recovered regardless of the macro, so it's findable and its callers link — no per-library configuration needed. The recognized-macro list was also broadened (Qt, Folly, Abseil, LLVM, V8, Eigen, rapidjson) so those additionally capture the return type. This only ever cleans up an already-garbled name and is limited to C and C++, so ordinary names — and languages like Kotlin and Scala where identifiers can legitimately contain spaces — are unaffected. (#1102)
## [1.1.6] - 2026-06-30