[clang] a00d440 - [AST] Hide errors from the attempt to introspect nodes

[Stephen Kelly via cfe-commits]

Author: Stephen Kelly
Date: 2021-03-16T23:46:31Z
New Revision: a00d44012820e9ed2eba623dd61ca9cf5a2ce115

URL: https://github.com/llvm/llvm-project/commit/a00d44012820e9ed2eba623dd61ca9cf5a2ce115
DIFF: https://github.com/llvm/llvm-project/commit/a00d44012820e9ed2eba623dd61ca9cf5a2ce115.diff

LOG: [AST] Hide errors from the attempt to introspect nodes

Added: 
    

Modified: 
    clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp

Removed: 
    


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diff  --git a/clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp b/clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp
index 6615f865221d..74ba70eefa04 100644
--- a/clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp
+++ b/clang/lib/Tooling/DumpTool/ClangSrcLocDump.cpp
@@ -92,7 +92,13 @@ int main(int argc, const char **argv) {
   auto ParsedArgs = Opts.ParseArgs(llvm::makeArrayRef(Argv).slice(1),
                                    MissingArgIndex, MissingArgCount);
   ParseDiagnosticArgs(*DiagOpts, ParsedArgs);
-  TextDiagnosticPrinter DiagnosticPrinter(llvm::errs(), &*DiagOpts);
+
+  // Don't output diagnostics, because common scenarios such as
+  // cross-compiling fail with diagnostics.  This is not fatal, but
+  // just causes attempts to use the introspection API to return no data.
+  std::string Str;
+  llvm::raw_string_ostream OS(Str);
+  TextDiagnosticPrinter DiagnosticPrinter(OS, &*DiagOpts);
   DiagnosticsEngine Diagnostics(
       IntrusiveRefCntPtr<DiagnosticIDs>(new DiagnosticIDs()), &*DiagOpts,
       &DiagnosticPrinter, false);