================
@@ -2710,6 +2715,224 @@ static StmtResult RebuildForRangeWithDereference(Sema
&SemaRef, Scope *S,
AdjustedRange.get(), RParenLoc, Sema::BFRK_Rebuild);
}
+void Sema::ApplyForRangeOrExpansionStatementLifetimeExtension(
+ VarDecl *RangeVar, ArrayRef<MaterializeTemporaryExpr *> Temporaries) {
+ if (Temporaries.empty())
+ return;
+
+ InitializedEntity Entity = InitializedEntity::InitializeVariable(RangeVar);
+ for (auto *MTE : Temporaries)
+ MTE->setExtendingDecl(RangeVar, Entity.allocateManglingNumber());
+}
+
+Sema::ForRangeBeginEndInfo Sema::BuildCXXForRangeBeginEndVars(
+ Scope *S, VarDecl *RangeVar, SourceLocation ColonLoc,
+ SourceLocation CoawaitLoc,
+ ArrayRef<MaterializeTemporaryExpr *> LifetimeExtendTemps,
+ BuildForRangeKind Kind, bool Constexpr, StmtResult *RebuildResult,
+ llvm::function_ref<StmtResult()> RebuildWithDereference,
+ IdentifierInfo *BeginName, IdentifierInfo *EndName) {
+ QualType RangeVarType = RangeVar->getType();
+ SourceLocation RangeLoc = RangeVar->getLocation();
+ const QualType RangeVarNonRefType = RangeVarType.getNonReferenceType();
+
+ ExprResult BeginRangeRef =
+ BuildDeclRefExpr(RangeVar, RangeVarNonRefType, VK_LValue, ColonLoc);
+ if (BeginRangeRef.isInvalid())
+ return {};
+
+ ExprResult EndRangeRef =
+ BuildDeclRefExpr(RangeVar, RangeVarNonRefType, VK_LValue, ColonLoc);
+ if (EndRangeRef.isInvalid())
+ return {};
+
+ QualType AutoType = Context.getAutoDeductType();
+ Expr *Range = RangeVar->getInit();
+ if (!Range)
+ return {};
+ QualType RangeType = Range->getType();
+
+ if (RequireCompleteType(RangeLoc, RangeType,
+ diag::err_for_range_incomplete_type))
+ return {};
+
+ // Build auto __begin = begin-expr, __end = end-expr.
+ // Divide by 2, since the variables are in the inner scope (loop body).
----------------
Sirraide wrote:
Opened #208770 to figure out what to do about this.
https://github.com/llvm/llvm-project/pull/169683
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