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https://github.com/carbon-language/carbon-lang.git
synced 2026-09-30 08:05:01 +01:00
Richard Smith
9fadfb5e82
Refactor the current function call deduction logic to make it reusable. Call into it from `impl` deduction. Also build a generic region for the definition portion of a generic `impl` and substitute into it before accessing the witness in a specific `impl`. This is enough to get simple uses of generic `impl`s to work. The main blocker for more complex cases is that we have very little support for non-trivial deduction, so while we can deduce `forall [T:! type] T as I`, we can't deduce `forall [T:! type] C as I(T)` yet.
32 lines
1.3 KiB
C++
32 lines
1.3 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_DEDUCE_H_
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#define CARBON_TOOLCHAIN_CHECK_DEDUCE_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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// Deduces the generic arguments to use in a call to a generic.
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auto DeduceGenericCallArguments(Context& context, SemIR::LocId loc_id,
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SemIR::GenericId generic_id,
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SemIR::SpecificId enclosing_specific_id,
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SemIR::InstBlockId implicit_params_id,
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SemIR::InstBlockId params_id,
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SemIR::InstId self_id,
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llvm::ArrayRef<SemIR::InstId> arg_ids)
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-> SemIR::SpecificId;
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// Deduces the impl arguments to use in a use of a parameterized impl. Returns
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// `Invalid` if deduction fails.
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auto DeduceImplArguments(Context& context, SemIR::LocId loc_id,
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const SemIR::Impl& impl, SemIR::ConstantId self_id,
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SemIR::ConstantId constraint_id) -> SemIR::SpecificId;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_DEDUCE_H_
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