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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 CARBON_TOOLCHAIN_DIAGNOSTICS_NULL_DIAGNOSTICS_H_
#define CARBON_TOOLCHAIN_DIAGNOSTICS_NULL_DIAGNOSTICS_H_
#include "toolchain/diagnostics/diagnostic_emitter.h"
namespace Carbon {
template <typename LocT>
inline auto NullDiagnosticConverter() -> DiagnosticConverter<LocT>& {
struct Converter : public DiagnosticConverter<LocT> {
auto ConvertLoc(LocT /*loc*/,
DiagnosticConverter<LocT>::ContextFnT /*context_fn*/) const
-> DiagnosticLoc override {
return {};
}
};
static auto* converter = new Converter;
return *converter;
}
inline auto NullDiagnosticConsumer() -> DiagnosticConsumer& {
struct Consumer : DiagnosticConsumer {
auto HandleDiagnostic(Diagnostic /*d*/) -> void override {}
};
static auto* consumer = new Consumer;
return *consumer;
}
template <typename LocT>
inline auto NullDiagnosticEmitter() -> DiagnosticEmitter<LocT>& {
static auto* emitter = new DiagnosticEmitter<LocT>(
NullDiagnosticConverter<LocT>(), NullDiagnosticConsumer());
return *emitter;
}
} // namespace Carbon
#endif // CARBON_TOOLCHAIN_DIAGNOSTICS_NULL_DIAGNOSTICS_H_