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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef TOOLS_CLANG_RAW_PTR_PLUGIN_SUPPRESSIBLEDIAGNOSTICBUILDER_H_
#define TOOLS_CLANG_RAW_PTR_PLUGIN_SUPPRESSIBLEDIAGNOSTICBUILDER_H_
#include "clang/Basic/Diagnostic.h"
#include "clang/Basic/SourceLocation.h"
namespace raw_ptr_plugin {
// A simple wrapper around DiagnosticBuilder that allows a diagnostic to be
// suppressed. The intended use case is for helper functions that return a
// DiagnosticBuilder, but only want to emit the diagnostic if some conditions
// are met.
class SuppressibleDiagnosticBuilder : public clang::DiagnosticBuilder {
public:
SuppressibleDiagnosticBuilder(clang::DiagnosticsEngine* diagnostics,
clang::SourceLocation loc,
unsigned diagnostic_id,
bool suppressed)
: DiagnosticBuilder(diagnostics->Report(loc, diagnostic_id)),
diagnostics_(diagnostics),
suppressed_(suppressed) {}
~SuppressibleDiagnosticBuilder() {
if (suppressed_) {
// Clear the underlying data, so the base class destructor
// doesn't try to emit the diagnostic.
Clear();
}
}
private:
clang::DiagnosticsEngine* const diagnostics_;
const bool suppressed_;
};
} // namespace raw_ptr_plugin
#endif // TOOLS_CLANG_RAW_PTR_PLUGIN_SUPPRESSIBLEDIAGNOSTICBUILDER_H_
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