[all-commits] [llvm/llvm-project] b14425: [Clang] Improve error recovery for invalid calls (...

[Younan Zhang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: b144258b0c0cc63dffba00a911d6539f00ed07bb
      https://github.com/llvm/llvm-project/commit/b144258b0c0cc63dffba00a911d6539f00ed07bb
  Author: Younan Zhang <zyn7109 at gmail.com>
  Date:   2025-04-22 (Tue, 22 Apr 2025)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Parse/Parser.h
    M clang/lib/Parse/ParseExpr.cpp
    M clang/test/AST/ast-dump-recovery.cpp
    M clang/test/AST/new-unknown-type.cpp
    M clang/test/Parser/cxx-concepts-requires-clause.cpp

  Log Message:
  -----------
  [Clang] Improve error recovery for invalid calls (#136295)

It doesn't make sense that we only build a RecoveryExpr for expressions
with invalid trailing commas. This patch extends it so that we now
always build up a RecoveryExpr whenever the call contains anything
invalid. As a result, we can back out HasTrailingComma.

There is only one diagnostic change as to concepts, where a RecoveryExpr
than an ExprError is now used to model an invalid requires clause, for
which we suggest adding parentheses around it. (This looks like what GCC
diagnoses)



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