[clang-tools-extra] [llvm] [clang-tidy] Introduced new option --dump-yaml-schema (PR #164412)
via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 21 05:55:37 PDT 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang-tools-extra
Author: Timur Golubovich (tgs-sc)
<details>
<summary>Changes</summary>
Introduced a way for generating YAML schema for validating input YAML. This can be useful to see the full structure of the input YAML file for clang-tidy tool. This PR consists of 3 main commits: commit that introduces new YamlIO GenerateSchema and adds only necessary changes to YAMLTraits.h to leave it in working state, commit that adds main changes to YAMLTraits.h that add capabilities such as type names in ScalarTraits and final commit that adds an option to clang-tidy with some simple changes such as changing `YamlIO.outputting()` -> `YamlIO.getKind()`. I have an RFC with this topic: https://discourse.llvm.org/t/rfc-yamlgenerateschema-support-for-producing-yaml-schemas/85846.
---
Patch is 49.67 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/164412.diff
11 Files Affected:
- (modified) clang-tools-extra/clang-tidy/ClangTidyOptions.cpp (+18-3)
- (modified) clang-tools-extra/clang-tidy/ClangTidyOptions.h (+3)
- (modified) clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp (+11)
- (added) llvm/include/llvm/Support/YAMLGenerateSchema.h (+400)
- (modified) llvm/include/llvm/Support/YAMLTraits.h (+109-29)
- (modified) llvm/lib/Support/CMakeLists.txt (+1)
- (added) llvm/lib/Support/YAMLGenerateSchema.cpp (+283)
- (modified) llvm/lib/Support/YAMLTraits.cpp (+4)
- (modified) llvm/unittests/Support/CMakeLists.txt (+1)
- (added) llvm/unittests/Support/YAMLGenerateSchemaTest.cpp (+124)
- (modified) llvm/utils/gn/secondary/llvm/lib/Support/BUILD.gn (+1)
``````````diff
diff --git a/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp b/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp
index b752a9beb0e34..b168e0dd28ddd 100644
--- a/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp
+++ b/clang-tools-extra/clang-tidy/ClangTidyOptions.cpp
@@ -16,6 +16,7 @@
#include "llvm/Support/ErrorOr.h"
#include "llvm/Support/MemoryBufferRef.h"
#include "llvm/Support/Path.h"
+#include "llvm/Support/YAMLGenerateSchema.h"
#include "llvm/Support/YAMLTraits.h"
#include <algorithm>
#include <optional>
@@ -87,7 +88,7 @@ struct NOptionMap {
template <>
void yamlize(IO &IO, ClangTidyOptions::OptionMap &Val, bool,
EmptyContext &Ctx) {
- if (IO.outputting()) {
+ if (IO.getKind() == IOKind::Outputting) {
// Ensure check options are sorted
std::vector<std::pair<StringRef, StringRef>> SortedOptions;
SortedOptions.reserve(Val.size());
@@ -108,7 +109,7 @@ void yamlize(IO &IO, ClangTidyOptions::OptionMap &Val, bool,
IO.postflightKey(SaveInfo);
}
IO.endMapping();
- } else {
+ } else if (IO.getKind() == IOKind::Inputting) {
// We need custom logic here to support the old method of specifying check
// options using a list of maps containing key and value keys.
auto &I = reinterpret_cast<Input &>(IO);
@@ -128,6 +129,11 @@ void yamlize(IO &IO, ClangTidyOptions::OptionMap &Val, bool,
} else {
IO.setError("expected a sequence or map");
}
+ } else {
+ MappingNormalization<NOptionMap, ClangTidyOptions::OptionMap> NOpts(IO,
+ Val);
+ EmptyContext Ctx;
+ yamlize(IO, NOpts->Options, true, Ctx);
}
}
@@ -182,7 +188,7 @@ struct ChecksVariant {
};
template <> void yamlize(IO &IO, ChecksVariant &Val, bool, EmptyContext &Ctx) {
- if (!IO.outputting()) {
+ if (IO.getKind() == IOKind::Inputting) {
// Special case for reading from YAML
// Must support reading from both a string or a list
auto &I = reinterpret_cast<Input &>(IO);
@@ -195,6 +201,9 @@ template <> void yamlize(IO &IO, ChecksVariant &Val, bool, EmptyContext &Ctx) {
} else {
IO.setError("expected string or sequence");
}
+ } else if (IO.getKind() == IOKind::GeneratingSchema) {
+ Val.AsVector = std::vector<std::string>();
+ yamlize(IO, *Val.AsVector, true, Ctx);
}
}
@@ -541,6 +550,12 @@ parseConfiguration(llvm::MemoryBufferRef Config) {
return Options;
}
+void dumpConfigurationYAMLSchema(llvm::raw_fd_ostream &Stream) {
+ ClangTidyOptions Options;
+ llvm::yaml::GenerateSchema GS(Stream);
+ GS << Options;
+}
+
static void diagHandlerImpl(const llvm::SMDiagnostic &Diag, void *Ctx) {
(*reinterpret_cast<DiagCallback *>(Ctx))(Diag);
}
diff --git a/clang-tools-extra/clang-tidy/ClangTidyOptions.h b/clang-tools-extra/clang-tidy/ClangTidyOptions.h
index 2aae92f1d9eb3..f0aa710c685a2 100644
--- a/clang-tools-extra/clang-tidy/ClangTidyOptions.h
+++ b/clang-tools-extra/clang-tidy/ClangTidyOptions.h
@@ -343,6 +343,9 @@ std::error_code parseLineFilter(llvm::StringRef LineFilter,
llvm::ErrorOr<ClangTidyOptions>
parseConfiguration(llvm::MemoryBufferRef Config);
+/// Dumps configuration YAML Schema to \p Stream
+void dumpConfigurationYAMLSchema(llvm::raw_fd_ostream &Stream);
+
using DiagCallback = llvm::function_ref<void(const llvm::SMDiagnostic &)>;
llvm::ErrorOr<ClangTidyOptions>
diff --git a/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp b/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
index 64157f530b8c0..7c6fa7f5c40b9 100644
--- a/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
+++ b/clang-tools-extra/clang-tidy/tool/ClangTidyMain.cpp
@@ -355,6 +355,12 @@ see https://clang.llvm.org/extra/clang-tidy/QueryBasedCustomChecks.html.
cl::init(false),
cl::cat(ClangTidyCategory));
+static cl::opt<bool> DumpYAMLSchema("dump-yaml-schema", desc(R"(
+Dumps configuration YAML Schema in JSON format to
+stdout.
+)"),
+ cl::init(false),
+ cl::cat(ClangTidyCategory));
namespace clang::tidy {
static void printStats(const ClangTidyStats &Stats) {
@@ -684,6 +690,11 @@ int clangTidyMain(int argc, const char **argv) {
return 0;
}
+ if (DumpYAMLSchema) {
+ dumpConfigurationYAMLSchema(llvm::outs());
+ return 0;
+ }
+
if (VerifyConfig) {
std::vector<ClangTidyOptionsProvider::OptionsSource> RawOptions =
OptionsProvider->getRawOptions(FileName);
diff --git a/llvm/include/llvm/Support/YAMLGenerateSchema.h b/llvm/include/llvm/Support/YAMLGenerateSchema.h
new file mode 100644
index 0000000000000..ac1609a9ee469
--- /dev/null
+++ b/llvm/include/llvm/Support/YAMLGenerateSchema.h
@@ -0,0 +1,400 @@
+//===- llvm/Support/YAMLGenerateSchema.h ------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_SUPPORT_YAMLGENERATE_SCHEMA_H
+#define LLVM_SUPPORT_YAMLGENERATE_SCHEMA_H
+
+#include "llvm/Support/Casting.h"
+#include "llvm/Support/YAMLTraits.h"
+
+namespace llvm {
+
+namespace json {
+class Value;
+}
+
+namespace yaml {
+
+class GenerateSchema : public IO {
+public:
+ GenerateSchema(raw_ostream &RO);
+ ~GenerateSchema() override = default;
+
+ IOKind getKind() const override;
+ bool outputting() const override;
+ bool mapTag(StringRef, bool) override;
+ void beginMapping() override;
+ void endMapping() override;
+ bool preflightKey(StringRef, bool, bool, bool &, void *&) override;
+ void postflightKey(void *) override;
+ std::vector<StringRef> keys() override;
+ void beginFlowMapping() override;
+ void endFlowMapping() override;
+ unsigned beginSequence() override;
+ void endSequence() override;
+ bool preflightElement(unsigned, void *&) override;
+ void postflightElement(void *) override;
+ unsigned beginFlowSequence() override;
+ bool preflightFlowElement(unsigned, void *&) override;
+ void postflightFlowElement(void *) override;
+ void endFlowSequence() override;
+ void beginEnumScalar() override;
+ bool matchEnumScalar(StringRef, bool) override;
+ bool matchEnumFallback() override;
+ void endEnumScalar() override;
+ bool beginBitSetScalar(bool &) override;
+ bool bitSetMatch(StringRef, bool) override;
+ void endBitSetScalar() override;
+ void scalarString(StringRef &, QuotingType) override;
+ void blockScalarString(StringRef &) override;
+ void scalarTag(std::string &) override;
+ NodeKind getNodeKind() override;
+ void setError(const Twine &message) override;
+ std::error_code error() override;
+ bool canElideEmptySequence() override;
+
+ bool preflightDocument();
+ void postflightDocument();
+
+ class SchemaNode {
+ public:
+ virtual json::Value toJSON() const = 0;
+
+ virtual ~SchemaNode() = default;
+ };
+
+ enum class PropertyKind : uint8_t {
+ UserDefined,
+ Properties,
+ AdditionalProperties,
+ Required,
+ Optional,
+ Type,
+ Enum,
+ Items,
+ FlowStyle,
+ };
+
+ class SchemaProperty : public SchemaNode {
+ StringRef Name;
+ PropertyKind Kind;
+
+ public:
+ SchemaProperty(StringRef Name, PropertyKind Kind)
+ : Name(Name), Kind(Kind) {}
+
+ PropertyKind getKind() const { return Kind; }
+
+ StringRef getName() const { return Name; }
+ };
+
+ class Schema;
+
+ class UserDefinedProperty final : public SchemaProperty {
+ Schema *Value;
+
+ public:
+ UserDefinedProperty(StringRef Name, Schema *Value)
+ : SchemaProperty(Name, PropertyKind::UserDefined), Value(Value) {}
+
+ Schema *getSchema() const { return Value; }
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::UserDefined;
+ }
+ };
+
+ class PropertiesProperty final : public SchemaProperty,
+ SmallVector<UserDefinedProperty *, 8> {
+ public:
+ using BaseVector = SmallVector<UserDefinedProperty *, 8>;
+
+ PropertiesProperty()
+ : SchemaProperty("properties", PropertyKind::Properties) {}
+
+ using BaseVector::begin;
+ using BaseVector::emplace_back;
+ using BaseVector::end;
+ using BaseVector::size;
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::Properties;
+ }
+ };
+
+ class AdditionalPropertiesProperty final : public SchemaProperty {
+ Schema *Value;
+
+ public:
+ AdditionalPropertiesProperty(Schema *Value = nullptr)
+ : SchemaProperty("additionalProperties",
+ PropertyKind::AdditionalProperties),
+ Value(Value) {}
+
+ Schema *getSchema() const { return Value; }
+
+ void setSchema(Schema *S) { Value = S; }
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::AdditionalProperties;
+ }
+ };
+
+ class RequiredProperty final : public SchemaProperty,
+ SmallVector<StringRef, 4> {
+ public:
+ using BaseVector = SmallVector<StringRef, 4>;
+
+ RequiredProperty() : SchemaProperty("required", PropertyKind::Required) {}
+
+ using BaseVector::begin;
+ using BaseVector::emplace_back;
+ using BaseVector::end;
+ using BaseVector::size;
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::Required;
+ }
+ };
+
+ class OptionalProperty final : public SchemaProperty,
+ SmallVector<StringRef, 4> {
+ public:
+ using BaseVector = SmallVector<StringRef, 4>;
+
+ OptionalProperty() : SchemaProperty("optional", PropertyKind::Optional) {}
+
+ using BaseVector::begin;
+ using BaseVector::emplace_back;
+ using BaseVector::end;
+ using BaseVector::size;
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::Optional;
+ }
+ };
+
+ class TypeProperty final : public SchemaProperty {
+ StringRef Value;
+
+ public:
+ TypeProperty(StringRef Value)
+ : SchemaProperty("type", PropertyKind::Type), Value(Value) {}
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::Type;
+ }
+ };
+
+ class EnumProperty final : public SchemaProperty, SmallVector<StringRef, 4> {
+ public:
+ using BaseVector = SmallVector<StringRef, 4>;
+
+ EnumProperty() : SchemaProperty("enum", PropertyKind::Enum) {}
+
+ using BaseVector::begin;
+ using BaseVector::emplace_back;
+ using BaseVector::end;
+ using BaseVector::size;
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::Enum;
+ }
+ };
+
+ class ItemsProperty final : public SchemaProperty {
+ Schema *Value;
+
+ public:
+ ItemsProperty(Schema *Value = nullptr)
+ : SchemaProperty("items", PropertyKind::Items), Value(Value) {}
+
+ Schema *getSchema() const { return Value; }
+
+ void setSchema(Schema *S) { Value = S; }
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::Items;
+ }
+ };
+
+ enum class FlowStyle : bool {
+ Block,
+ Flow,
+ };
+
+ class FlowStyleProperty final : public SchemaProperty {
+ FlowStyle Style;
+
+ public:
+ FlowStyleProperty(FlowStyle Style = FlowStyle::Block)
+ : SchemaProperty("flowStyle", PropertyKind::FlowStyle), Style(Style) {}
+
+ void setStyle(FlowStyle S) { Style = S; }
+
+ FlowStyle getStyle() const { return Style; }
+
+ json::Value toJSON() const override;
+
+ static bool classof(const SchemaProperty *Property) {
+ return Property->getKind() == PropertyKind::FlowStyle;
+ }
+ };
+
+ class Schema final : public SchemaNode, SmallVector<SchemaProperty *, 8> {
+ public:
+ using BaseVector = SmallVector<SchemaProperty *, 8>;
+
+ Schema() = default;
+
+ using BaseVector::begin;
+ using BaseVector::emplace_back;
+ using BaseVector::end;
+ using BaseVector::size;
+
+ json::Value toJSON() const override;
+ };
+
+private:
+ std::vector<std::unique_ptr<SchemaNode>> SchemaNodes;
+ SmallVector<Schema *, 8> Schemas;
+ raw_ostream &RO;
+ SchemaNode *Root = nullptr;
+
+ template <typename PropertyType, typename... PropertyArgs>
+ PropertyType *createProperty(PropertyArgs &&...Args) {
+ auto UPtr =
+ std::make_unique<PropertyType>(std::forward<PropertyArgs>(Args)...);
+ auto *Ptr = UPtr.get();
+ SchemaNodes.emplace_back(std::move(UPtr));
+ return Ptr;
+ }
+
+ template <typename PropertyType, typename... PropertyArgs>
+ PropertyType *getOrCreateProperty(Schema &S, PropertyArgs... Args) {
+ auto Found = std::find_if(S.begin(), S.end(), [](SchemaProperty *Property) {
+ return isa<PropertyType>(Property);
+ });
+ if (Found != S.end()) {
+ return cast<PropertyType>(*Found);
+ }
+ PropertyType *Created =
+ createProperty<PropertyType>(std::forward<PropertyArgs>(Args)...);
+ S.emplace_back(Created);
+ return Created;
+ }
+
+ Schema *createSchema() {
+ auto UPtr = std::make_unique<Schema>();
+ auto *Ptr = UPtr.get();
+ SchemaNodes.emplace_back(std::move(UPtr));
+ return Ptr;
+ }
+
+ Schema *getTopSchema() const {
+ return Schemas.empty() ? nullptr : Schemas.back();
+ }
+};
+
+// Define non-member operator<< so that Output can stream out document list.
+template <typename T>
+inline std::enable_if_t<has_DocumentListTraits<T>::value, GenerateSchema &>
+operator<<(GenerateSchema &Gen, T &DocList) {
+ EmptyContext Ctx;
+ Gen.preflightDocument();
+ yamlize(Gen, DocumentListTraits<T>::element(Gen, DocList, 0), true, Ctx);
+ Gen.postflightDocument();
+ return Gen;
+}
+
+// Define non-member operator<< so that Output can stream out a map.
+template <typename T>
+inline std::enable_if_t<has_MappingTraits<T, EmptyContext>::value,
+ GenerateSchema &>
+operator<<(GenerateSchema &Gen, T &Map) {
+ EmptyContext Ctx;
+ Gen.preflightDocument();
+ yamlize(Gen, Map, true, Ctx);
+ Gen.postflightDocument();
+ return Gen;
+}
+
+// Define non-member operator<< so that Output can stream out a sequence.
+template <typename T>
+inline std::enable_if_t<has_SequenceTraits<T>::value, GenerateSchema &>
+operator<<(GenerateSchema &Gen, T &Seq) {
+ EmptyContext Ctx;
+ Gen.preflightDocument();
+ yamlize(Gen, Seq, true, Ctx);
+ Gen.postflightDocument();
+ return Gen;
+}
+
+// Define non-member operator<< so that Output can stream out a block scalar.
+template <typename T>
+inline std::enable_if_t<has_BlockScalarTraits<T>::value, GenerateSchema &>
+operator<<(GenerateSchema &Gen, T &Val) {
+ EmptyContext Ctx;
+ Gen.preflightDocument();
+ yamlize(Gen, Val, true, Ctx);
+ Gen.postflightDocument();
+ return Gen;
+}
+
+// Define non-member operator<< so that Output can stream out a string map.
+template <typename T>
+inline std::enable_if_t<has_CustomMappingTraits<T>::value, GenerateSchema &>
+operator<<(GenerateSchema &Gen, T &Val) {
+ EmptyContext Ctx;
+ Gen.preflightDocument();
+ yamlize(Gen, Val, true, Ctx);
+ Gen.postflightDocument();
+ return Gen;
+}
+
+// Define non-member operator<< so that Output can stream out a polymorphic
+// type.
+template <typename T>
+inline std::enable_if_t<has_PolymorphicTraits<T>::value, GenerateSchema &>
+operator<<(GenerateSchema &Gen, T &Val) {
+ EmptyContext Ctx;
+ Gen.preflightDocument();
+ yamlize(Gen, Val, true, Ctx);
+ Gen.postflightDocument();
+ return Gen;
+}
+
+// Provide better error message about types missing a trait specialization
+template <typename T>
+inline std::enable_if_t<missingTraits<T, EmptyContext>::value, GenerateSchema &>
+operator<<(GenerateSchema &Gen, T &seq) {
+ char missing_yaml_trait_for_type[sizeof(MissingTrait<T>)];
+ return Gen;
+}
+
+} // namespace yaml
+
+} // namespace llvm
+
+#endif // LLVM_SUPPORT_YAMLGENERATE_SCHEMA_H
diff --git a/llvm/include/llvm/Support/YAMLTraits.h b/llvm/include/llvm/Support/YAMLTraits.h
index 3d36f41ca1a04..f92e26e6424a1 100644
--- a/llvm/include/llvm/Support/YAMLTraits.h
+++ b/llvm/include/llvm/Support/YAMLTraits.h
@@ -145,6 +145,7 @@ enum class QuotingType { None, Single, Double };
/// return StringRef();
/// }
/// static QuotingType mustQuote(StringRef) { return QuotingType::Single; }
+/// static constexpr StringRef typeName = "string";
/// };
template <typename T, typename Enable = void> struct ScalarTraits {
// Must provide:
@@ -158,6 +159,9 @@ template <typename T, typename Enable = void> struct ScalarTraits {
//
// Function to determine if the value should be quoted.
// static QuotingType mustQuote(StringRef);
+ //
+ // Optional, for GeneratingSchema:
+ // static constexpr StringRef typeName = "string";
};
/// This class should be specialized by type that requires custom conversion
@@ -175,6 +179,7 @@ template <typename T, typename Enable = void> struct ScalarTraits {
/// // return empty string on success, or error string
/// return StringRef();
/// }
+/// static constexpr StringRef typeName = "string";
/// };
template <typename T> struct BlockScalarTraits {
// Must provide:
@@ -189,6 +194,7 @@ template <typename T> struct BlockScalarTraits {
// Optional:
// static StringRef inputTag(T &Val, std::string Tag)
// static void outputTag(const T &Val, raw_ostream &Out)
+ // static constexpr StringRef typeName = "string";
};
/// This class should be specialized by type that requires custom conversion
@@ -211,6 +217,7 @@ template <typename T> struct BlockScalarTraits {
/// static QuotingType mustQuote(const MyType &Value, StringRef) {
/// return QuotingType::Single;
/// }
+/// static constexpr StringRef typeName = "integer";
/// };
template <typename T> struct TaggedScalarTraits {
// Must provide:
@@ -226,6 +233,9 @@ template <typename T> struct TaggedScalarTraits {
//
// Function to determine if the value should be quoted.
// static QuotingType mustQuote(const T &Value, StringRef Scalar);
+ //
+ // Optional:
+ // static constexpr StringRef typeName = "string";
};
/// This class should be specialized by any type that needs to be converted
@@ -442,6 +452,14 @@ template <class T> struct has_CustomMappingTraits {
is_detected<check, CustomMappingTraits<T>>::value;
};
+// Test if typeName is defined on type T.
+template <typename T> struct has_TypeNameTraits {
+ template <class U>
+ using check = std::is_same<decltype(&U::typeName), StringRef>;
+
+ static constexpr bool value = is_detected<check, T>::value;
+};
+
// Test if flow is defined on type T.
template <typename T> struct has_FlowTraits {
template <class U> using check = decltype(&U::flow);
@@ -683,12 +701,19 @@ struct unvalidatedMappingTraits
!has_MappingValidateTraits<T, Context>::value> {
};
+enum class IOKind : uint8_t {
+ Outputting,
+ Inputting,
+ GeneratingSchema,
+};
+
// Base class for Input and Output.
class LLVM_ABI IO {
public:
IO(void *Ctxt = nullptr);
virtual ~IO();
+ virtual IOKind getKind() const = 0;
virtual bool outputting() const = 0;
virtual unsigned beginSequence() = 0;
@@ -732,7 +757,8 @@ class LLVM_ABI IO {
virtual void setAllowUnknownKeys(bool Allow);
template <typename T> void enumCase(T &Val, StringRef Str, const T ConstVal) {
- if (matchEnumScalar(Str, outputting() && Val == ConstVal)) {
+ if (matchEnumScalar(Str,
+ getKind() == IOKind::Outputting && Val == ConstVal)) {
Val = ConstVal;
}
}
@@ -740,7 +766,8 @@ class LLVM_ABI IO {
// allow anonymous enum values to be used with LLVM_YAML_STRONG_TYPEDEF
template <typename T>
void enumCase(T &Val, Str...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/164412
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