Files
carbon-lang/toolchain/parse/node_kind.cpp
T
Jon Ross-Perkins c555b39a2c Rename parser dir to parse (#3178)
Continuing with #3070. Just a dir and file rename (mostly removing
prefixes, although for parse_tree_fuzzer and parse_tree_file_test I'm
dropping "tree" instead of "parse"). Everything in the parse dir should
be marked as a move.
2023-09-01 01:35:45 +00:00

50 lines
1.5 KiB
C++

// 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
#include "toolchain/parse/node_kind.h"
#include "common/check.h"
namespace Carbon::Parse {
CARBON_DEFINE_ENUM_CLASS_NAMES(NodeKind) = {
#define CARBON_PARSE_NODE_KIND(Name) CARBON_ENUM_CLASS_NAME_STRING(Name)
#include "toolchain/parse/node_kind.def"
};
auto NodeKind::has_bracket() const -> bool {
static constexpr bool HasBracket[] = {
#define CARBON_PARSE_NODE_KIND_BRACKET(...) true,
#define CARBON_PARSE_NODE_KIND_CHILD_COUNT(...) false,
#include "toolchain/parse/node_kind.def"
};
return HasBracket[AsInt()];
}
auto NodeKind::bracket() const -> NodeKind {
// Nodes are never self-bracketed, so we use that for nodes that instead set
// child_count.
static constexpr NodeKind Bracket[] = {
#define CARBON_PARSE_NODE_KIND_BRACKET(Name, BracketName) NodeKind::BracketName,
#define CARBON_PARSE_NODE_KIND_CHILD_COUNT(Name, ...) NodeKind::Name,
#include "toolchain/parse/node_kind.def"
};
auto bracket = Bracket[AsInt()];
CARBON_CHECK(bracket != *this) << *this;
return bracket;
}
auto NodeKind::child_count() const -> int32_t {
static constexpr int32_t ChildCount[] = {
#define CARBON_PARSE_NODE_KIND_BRACKET(...) -1,
#define CARBON_PARSE_NODE_KIND_CHILD_COUNT(Name, Size) Size,
#include "toolchain/parse/node_kind.def"
};
auto child_count = ChildCount[AsInt()];
CARBON_CHECK(child_count >= 0) << *this;
return child_count;
}
} // namespace Carbon::Parse