Files
carbon-lang/executable_semantics/ast/member.h
T
Jon Meow 8fccecadeb Refactor output to be more streaming-focused. (#666)
- Switch code to llvm::raw_ostream as part of standardizing output forms.
    - Preferring llvm::raw_ostream over std::ostream because other tooling code should be expected to rely on llvm more closely, and an overall preference towards library consistency.
    - There are a couple spots in syntax/ that still use std streams, but I'd prefer to take a separate PR to see how best to address those.
    - std::boolalpha doesn't work with llvm, so I've implemented equivalent in a couple places (not enough that it felt like worth making a helper function).
- Implement Print(ostream) as consistently as we can, as an instance member.
    - This facilitates the use of the common/ostream.h template to provide operators.
    - Preferring this approach so that Print is easily accessible via gdb, per suggestion on #executable-semantics.
- Switch code currently calling `type->Print(ostream)` to instead do `ostream << *type`.
- Remove the unused `PrintTypeEnv`, nothing used it and the declaration didn't match the definition.
2021-07-20 13:16:48 -07:00

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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#ifndef EXECUTABLE_SEMANTICS_AST_MEMBER_H_
#define EXECUTABLE_SEMANTICS_AST_MEMBER_H_
#include <string>
#include "common/ostream.h"
#include "executable_semantics/ast/expression.h"
namespace Carbon {
enum class MemberKind { FieldMember };
struct FieldMember {
static constexpr MemberKind Kind = MemberKind::FieldMember;
std::string name;
const Expression* type;
};
struct Member {
static auto MakeFieldMember(int line_num, std::string name,
const Expression* type) -> Member*;
auto GetFieldMember() const -> const FieldMember&;
void Print(llvm::raw_ostream& out) const;
inline auto tag() const -> MemberKind {
return std::visit([](const auto& t) { return t.Kind; }, value);
}
int line_num;
private:
std::variant<FieldMember> value;
};
} // namespace Carbon
#endif // EXECUTABLE_SEMANTICS_AST_MEMBER_H_