================
@@ -3764,6 +3764,49 @@ void DecompositionDecl::printName(llvm::raw_ostream &OS,
OS << ']';
}
+DecompositionDecl::OriginalVarResult DecompositionDecl::getOriginalVar() const
{
+ OriginalVarResult Result;
+ const Expr *Init = getInit();
+ if (!Init)
+ return Result;
+
+ const Expr *Stripped = Init->IgnoreParenImpCasts();
+ if (const auto *DRE = dyn_cast<DeclRefExpr>(Stripped)) {
+ Result.Var = dyn_cast<VarDecl>(DRE->getDecl());
+ return Result;
+ }
+ if (const auto *CE = dyn_cast<CXXConstructExpr>(Stripped)) {
+ if (CE->getNumArgs() == 1) {
+ const Expr *Arg = CE->getArg(0)->IgnoreParenImpCasts();
+ if (const auto *ArgDRE = dyn_cast<DeclRefExpr>(Arg)) {
+ Result.Var = dyn_cast<VarDecl>(ArgDRE->getDecl());
+ return Result;
+ }
+ if (isa<CallExpr>(Arg))
+ Result.DiagKind = 3;
+ else
+ Result.DiagKind = 2;
+ return Result;
+ }
+ }
+ if (isa<CallExpr>(Stripped)) {
+ Result.DiagKind = 0;
+ } else if (isa<InitListExpr>(Stripped) ||
+ isa<CXXStdInitializerListExpr>(Stripped)) {
+ Result.DiagKind = 1;
+ } else if (const auto *FCE = dyn_cast<CXXFunctionalCastExpr>(Stripped)) {
+ if (isa<InitListExpr>(FCE->getSubExpr()->IgnoreParenImpCasts()))
+ Result.DiagKind = 1;
+ else
+ Result.DiagKind = 3;
+ } else if (isa<MaterializeTemporaryExpr>(Init) ||
+ isa<CXXBindTemporaryExpr>(Init))
+ Result.DiagKind = 2;
+ else
+ Result.DiagKind = 3;
----------------
alexey-bataev wrote:
Do not use magic constants, use enums
https://github.com/llvm/llvm-project/pull/190832
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