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c5fd8f42b8
* Change `InterfaceWitness` -> `ImplWitness` * Include a `SpecificId` in the `ImplWitness`. This allows the `InstBlock` it contains to have its own identity, allowing it to be changed as the impl is processed. Evaluation only updates the specific. * Create the `ImplWitness` at the start of the impl definition. In the future, this will be populated with the values of non-function associated constants. For now, it starts full of invalid instruction ids. * Implements the model suggested in #4672 . Note that the non-SemIR testdata changes are to these file: * `toolchain/check/testdata/impl/lookup/fail_todo_undefined_impl.carbon` * `toolchain/check/testdata/struct/import.carbon` * `toolchain/check/testdata/tuple/import.carbon` The last two are due to an import of generics bug exposed by this PR, which will be fixed in a follow-on. --------- Co-authored-by: Josh L <josh11b@users.noreply.github.com> Co-authored-by: Richard Smith <richard@metafoo.co.uk>
31 lines
1.1 KiB
C++
31 lines
1.1 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_IMPL_H_
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#define CARBON_TOOLCHAIN_CHECK_IMPL_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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// Returns the initial witness value for a new impl declaration.
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auto ImplWitnessForDeclaration(Context& context, const SemIR::Impl& impl)
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-> SemIR::InstId;
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// TODO: AddConstantsToImplWitnessFromConstraint()
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// Update `impl`'s witness at the start of a definition.
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auto ImplWitnessStartDefinition(Context& context, SemIR::Impl& impl) -> void;
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// Adds the function members to the witness for `impl`.
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auto FinishImplWitness(Context& context, SemIR::Impl& impl) -> void;
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// Sets all unset members of the witness for `impl` to the error instruction.
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auto FillImplWitnessWithErrors(Context& context, SemIR::Impl& impl) -> void;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_IMPL_H_
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