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https://github.com/carbon-language/carbon-lang.git
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Richard Smith
17ee3ed9b7
Type checking now stores information on a member access identifying the member that was accessed, not only its name. This parallels what we do for other similar constructs whose meaning is resolved by name lookup or type-checking, and will allow us to avoid redoing lookups in some cases during interpretation.
52 lines
1.4 KiB
C++
52 lines
1.4 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_EXPLORER_AST_MEMBER_H_
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#define CARBON_EXPLORER_AST_MEMBER_H_
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#include <optional>
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#include <string>
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#include "explorer/common/nonnull.h"
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#include "llvm/ADT/PointerUnion.h"
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namespace Carbon {
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class Declaration;
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class Value;
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// A NamedValue represents a value with a name, such as a single struct field.
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struct NamedValue {
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// The field name.
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std::string name;
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// The field's value.
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Nonnull<const Value*> value;
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};
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// A member of a type.
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//
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// This is either a declared member of a class, interface, or similar, or a
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// member of a struct with no declaration.
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class Member {
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public:
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explicit Member(Nonnull<const Declaration*> declaration);
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explicit Member(Nonnull<const NamedValue*> struct_member);
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// The name of the member.
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auto name() const -> std::string_view;
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// The declared type of the member, which might include type variables.
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auto type() const -> const Value&;
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// A declaration of the member, if any exists.
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auto declaration() const -> std::optional<Nonnull<const Declaration*>>;
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private:
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llvm::PointerUnion<Nonnull<const Declaration*>, Nonnull<const NamedValue*>>
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member_;
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};
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} // namespace Carbon
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#endif // CARBON_EXPLORER_AST_MEMBER_H_
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