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