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carbon-lang/toolchain/diagnostics/null_diagnostics.h
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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#ifndef TOOLCHAIN_DIAGNOSTICS_NULL_DIAGNOSTICS_H_
#define TOOLCHAIN_DIAGNOSTICS_NULL_DIAGNOSTICS_H_
#include "toolchain/diagnostics/diagnostic_emitter.h"
namespace Carbon {
template <typename LocationT>
inline auto NullDiagnosticLocationTranslator()
-> DiagnosticLocationTranslator<LocationT>& {
struct Translator : DiagnosticLocationTranslator<LocationT> {
auto GetLocation(LocationT) -> Diagnostic::Location override { return {}; }
};
static auto* translator = new Translator;
return *translator;
}
inline auto NullDiagnosticConsumer() -> DiagnosticConsumer& {
struct Consumer : DiagnosticConsumer {
auto HandleDiagnostic(const Diagnostic& d) -> void override {}
};
static auto* consumer = new Consumer;
return *consumer;
}
template <typename LocationT>
inline auto NullDiagnosticEmitter() -> DiagnosticEmitter<LocationT>& {
static auto* emitter = new DiagnosticEmitter<LocationT>(
NullDiagnosticLocationTranslator<LocationT>(), NullDiagnosticConsumer());
return *emitter;
}
} // namespace Carbon
#endif // TOOLCHAIN_DIAGNOSTICS_NULL_DIAGNOSTICS_H_