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-rw-r--r--lib/Edit/RewriteObjCFoundationAPI.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/lib/Edit/RewriteObjCFoundationAPI.cpp b/lib/Edit/RewriteObjCFoundationAPI.cpp
index 7445700cc4..9c00d9ea77 100644
--- a/lib/Edit/RewriteObjCFoundationAPI.cpp
+++ b/lib/Edit/RewriteObjCFoundationAPI.cpp
@@ -801,8 +801,14 @@ static bool rewriteToNumericBoxedExpression(const ObjCMessageExpr *Msg,
}
}
- if (needsCast)
+ if (needsCast) {
+ DiagnosticsEngine &Diags = Ctx.getDiagnostics();
+ // FIXME: Use a custom category name to distinguish migration diagnostics.
+ unsigned diagID = Diags.getCustomDiagID(DiagnosticsEngine::Warning,
+ "converting to boxing syntax requires a cast");
+ Diags.Report(Msg->getExprLoc(), diagID) << Msg->getSourceRange();
return false;
+ }
SourceRange ArgRange = OrigArg->getSourceRange();
commit.replaceWithInner(Msg->getSourceRange(), ArgRange);