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https://github.com/carbon-language/carbon-lang.git
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Nicholas Bishop
dbf79d5229
When evaluating a deferred member access action, the scope stack cannot be relied on, so `LookupUnqualifiedName` cannot be used in `GetHighestAllowedAccess` to get the `Self` type. Instead, store the `Self` type in the `Context` when evaluating a method, and use that in `GetHighestAllowedAccess`.
60 lines
2.8 KiB
C++
60 lines
2.8 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_MEMBER_ACCESS_H_
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#define CARBON_TOOLCHAIN_CHECK_MEMBER_ACCESS_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 highest allowed access for members of `name_scope_const_id`. For
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// example, if this returns `Protected` then only `Public` and `Protected`
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// accesses are allowed -- not `Private`.
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auto GetHighestAllowedAccess(Context& context,
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SemIR::ConstantId name_scope_const_id)
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-> SemIR::AccessKind;
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// Creates SemIR to perform a member access with base expression `base_id` and
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// member name `name_id`. When `required`, failing to find the name is a
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// diagnosed error; otherwise, `None` is returned. Returns the result of the
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// access.
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auto PerformMemberAccess(Context& context, SemIR::LocId loc_id,
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SemIR::InstId base_id, SemIR::NameId name_id,
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bool required = true) -> SemIR::InstId;
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// Creates SemIR to perform a compound member access with base expression
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// `base_id` and member name expression `member_expr_id`. Returns the result of
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// the access. If specified, `missing_impl_diagnostic_context()` is used to
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// provide context for the error diagnostic when impl binding fails due to a
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// missing `impl`.
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//
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// On failure, an ErrorInst is returned and a diagnostic is produced unless
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// `diagnose` is false. It is incorrect to specify `diagnose` as false if the
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// resulting ErrorInst may appear in the produced SemIR.
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auto PerformCompoundMemberAccess(
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Context& context, SemIR::LocId loc_id, SemIR::InstId base_id,
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SemIR::InstId member_expr_id, bool diagnose = true,
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DiagnosticContextFn missing_impl_diagnostic_context = nullptr)
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-> SemIR::InstId;
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// Finds the value of an associated entity (given by assoc_entity_inst_id, a
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// member of the interface given by interface_type_id) associated with a type or
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// facet (given by base_id). Never does instance binding.
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auto GetAssociatedValue(Context& context, SemIR::LocId loc_id,
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SemIR::InstId base_id,
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SemIR::ConstantId assoc_entity_const_id,
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SemIR::SpecificInterface interface) -> SemIR::InstId;
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// Creates SemIR to perform a tuple index with base expression `tuple_inst_id`
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// and index expression `index_inst_id`. Returns the result of the access.
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auto PerformTupleAccess(Context& context, SemIR::LocId loc_id,
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SemIR::InstId tuple_inst_id,
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SemIR::InstId index_inst_id) -> SemIR::InstId;
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} // namespace Carbon::Check
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#endif // CARBON_TOOLCHAIN_CHECK_MEMBER_ACCESS_H_
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