mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-29 13:14:57 +01:00
Boaz Brickner
f29515fe4e
Context: https://github.com/carbon-language/carbon-lang/pull/5891#pullrequestreview-3178216893
35 lines
1.6 KiB
C++
35 lines
1.6 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#ifndef CARBON_TOOLCHAIN_CHECK_CPP_OVERLOAD_RESOLUTION_H_
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#define CARBON_TOOLCHAIN_CHECK_CPP_OVERLOAD_RESOLUTION_H_
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#include "toolchain/check/context.h"
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#include "toolchain/sem_ir/ids.h"
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namespace Carbon::Check {
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// Performs overloading resolution for a call to an overloaded C++ set. A set
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// with a single non-templated function goes through the same rules for
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// overloading resolution. Uses Clang to find the best viable function for the
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// call. Returns the resolved function, or an error instruction if overload
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// resolution failed.
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//
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// Note on non-overloaded functions: In C++, a single non-templated function is
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// also treated as an overloaded set and goes through the overload resolution to
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// ensure that the function is viable for the call. This is to make sure that
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// calls that have no viable implicit conversion sequence are rejected even when
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// an implicit conversion is possible. Keeping the same behavior here for
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// consistency and supporting migrations so that the migrated callers from C++
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// remain valid.
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auto PerformCppOverloadResolution(Context& context, SemIR::LocId loc_id,
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SemIR::CppOverloadSetId overload_set_id,
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SemIR::InstId self_id,
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llvm::ArrayRef<SemIR::InstId> arg_ids)
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-> SemIR::InstId;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_CPP_OVERLOAD_RESOLUTION_H_
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