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38 lines
1.1 KiB
C++
38 lines
1.1 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/parse/node_category.h"
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#include "llvm/ADT/StringExtras.h"
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namespace Carbon::Parse {
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// Returns a string form of the node category for printing.
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static auto NodeCategoryToString(NodeCategory::RawEnumType category)
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-> llvm::StringLiteral {
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#define CARBON_NODE_CATEGORY_TO_STRING(Name) \
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case NodeCategory::Name: \
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return #Name;
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switch (category) {
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CARBON_NODE_CATEGORY(CARBON_NODE_CATEGORY_TO_STRING)
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CARBON_NODE_CATEGORY_TO_STRING(None)
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}
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#undef CARBON_NODE_CATEGORY_TO_STRING
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}
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auto NodeCategory::Print(llvm::raw_ostream& out) const -> void {
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llvm::ListSeparator sep("|");
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auto value = value_;
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do {
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// The lowest set bit in the value, or 0 (`None`) if no bits are set.
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auto lowest_bit = static_cast<RawEnumType>(value & -value);
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out << sep << NodeCategoryToString(lowest_bit);
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value &= ~lowest_bit;
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} while (value);
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}
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} // namespace Carbon::Parse
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