[PATCH] D116294: [CodeCompletion] (mostly) fix completion in incomplete C++ ctor initializers.

Kadir Cetinkaya via Phabricator via cfe-commits cfe-commits at lists.llvm.org
Mon Jan 10 02:08:00 PST 2022


kadircet added inline comments.


================
Comment at: clang/lib/Parse/ParseCXXInlineMethods.cpp:153
+      // probably truncated, so don't eat more tokens.
+      if (!Toks.back().is(tok::code_completion))
+        SkipMalformedDecl();
----------------
i don't follow the logic here. maybe i am reading the comment wrong, but we are actually going to eat **more** tokens by calling `SkipMalformedDecl`, possibly the following one, right? for example in a scenario like:
```
struct Foo {
  Foo : ^b
  int bar;
}
```
`ConsumeAndStoreFunctionPrologue` will actually put `b` following the code completion token (`^`) into `Toks` as well, hence when we skip, we actually skip until the next semicolon and throw away bar. But when the code completion token is after `b`, `ConsumeAndStoreFunctionPrologue` we'll have code completion token at the end of the `Toks` and won't skip anything

 Do we have cases that break miserably when we don't perform an extra skip here for the (possible) reminder of current initalizer?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D116294/new/

https://reviews.llvm.org/D116294



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