[PATCH] D155573: [Clang] Fix the location of default init expressions
Corentin Jabot via Phabricator via cfe-commits
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Tue Jul 18 03:25:16 PDT 2023
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Default member initializations constructed from
a parenthesized aggregate initialization should be constructed
at the location of the left paren, to be consistent with
brace initialization.
Otherwise we get diagmostics and source_location in the wrong places.
Fixes #63903
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D155573
Files:
clang/lib/Sema/SemaInit.cpp
clang/test/SemaCXX/source_location.cpp
Index: clang/test/SemaCXX/source_location.cpp
===================================================================
--- clang/test/SemaCXX/source_location.cpp
+++ clang/test/SemaCXX/source_location.cpp
@@ -1,5 +1,6 @@
// RUN: %clang_cc1 -std=c++1z -fcxx-exceptions -fexceptions -verify %s
// RUN: %clang_cc1 -std=c++2a -fcxx-exceptions -DUSE_CONSTEVAL -fexceptions -verify %s
+// RUN: %clang_cc1 -std=c++2b -fcxx-exceptions -DUSE_CONSTEVAL -DPAREN_INIT -fexceptions -verify %s
// RUN: %clang_cc1 -std=c++1z -fcxx-exceptions -fms-extensions -DMS -fexceptions -verify %s
// RUN: %clang_cc1 -std=c++2a -fcxx-exceptions -fms-extensions -DMS -DUSE_CONSTEVAL -fexceptions -verify %s
// expected-no-diagnostics
@@ -781,3 +782,17 @@
static_assert(f<int>() != // intentional new line
f<int>());
}
+
+#ifdef PAREN_INIT
+namespace GH63903 {
+struct S {
+ int _;
+ int i = SL::current().line();
+ int j = __builtin_LINE();
+};
+// Ensure parent aggregate initialization is consistent with brace
+// aggregate initialization.
+static_assert(S(0).i == S{0}.i);
+static_assert(S(0).j == S{0}.i);
+}
+#endif
Index: clang/lib/Sema/SemaInit.cpp
===================================================================
--- clang/lib/Sema/SemaInit.cpp
+++ clang/lib/Sema/SemaInit.cpp
@@ -5593,7 +5593,8 @@
// C++ [dcl.init]p16.6.2.2
// The remaining elements are initialized with their default
// member initializers, if any
- ExprResult DIE = S.BuildCXXDefaultInitExpr(FD->getLocation(), FD);
+ ExprResult DIE = S.BuildCXXDefaultInitExpr(
+ Kind.getParenOrBraceRange().getEnd(), FD);
if (DIE.isInvalid())
return;
S.checkInitializerLifetime(SubEntity, DIE.get());
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