Files
llvm-project/mlir/lib/Bindings/Python/DialectTransform.cpp
Twice b919d62eae [MLIR][Python] Forward the name of MLIR types to Python side (#174700)
In this PR, I added a C API for each (upstream) MLIR type to retrieve
its type name (for example, `IntegerType` -> `mlirIntegerTypeGetName()`
-> `"builtin.integer"`), and exposed a corresponding `type_name` class
attribute in the Python bindings (e.g., `IntegerType.type_name` ->
`"builtin.integer"`). This can be used in various places to avoid
hard-coded strings, such as eliminating the manual string in
`irdl.base("!builtin.integer")`.

Note that parts of this PR (mainly mechanical changes) were produced via
GitHub Copilot and GPT-5.2. I have manually reviewed the changes and
verified them with tests to ensure correctness.
2026-01-07 16:27:31 +08:00

182 lines
6.8 KiB
C++

//===- DialectTransform.cpp - 'transform' dialect submodule ---------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include <string>
#include "mlir-c/Dialect/Transform.h"
#include "mlir-c/IR.h"
#include "mlir-c/Support.h"
#include "mlir/Bindings/Python/IRCore.h"
#include "mlir/Bindings/Python/Nanobind.h"
#include "mlir/Bindings/Python/NanobindAdaptors.h"
namespace nb = nanobind;
using namespace mlir::python::nanobind_adaptors;
namespace mlir {
namespace python {
namespace MLIR_BINDINGS_PYTHON_DOMAIN {
namespace transform {
//===-------------------------------------------------------------------===//
// AnyOpType
//===-------------------------------------------------------------------===//
struct AnyOpType : PyConcreteType<AnyOpType> {
static constexpr IsAFunctionTy isaFunction = mlirTypeIsATransformAnyOpType;
static constexpr GetTypeIDFunctionTy getTypeIdFunction =
mlirTransformAnyOpTypeGetTypeID;
static constexpr const char *pyClassName = "AnyOpType";
static inline const MlirStringRef name = mlirTransformAnyOpTypeGetName();
using Base::Base;
static void bindDerived(ClassTy &c) {
c.def_static(
"get",
[](DefaultingPyMlirContext context) {
return AnyOpType(context->getRef(),
mlirTransformAnyOpTypeGet(context.get()->get()));
},
"Get an instance of AnyOpType in the given context.",
nb::arg("context").none() = nb::none());
}
};
//===-------------------------------------------------------------------===//
// AnyParamType
//===-------------------------------------------------------------------===//
struct AnyParamType : PyConcreteType<AnyParamType> {
static constexpr IsAFunctionTy isaFunction = mlirTypeIsATransformAnyParamType;
static constexpr GetTypeIDFunctionTy getTypeIdFunction =
mlirTransformAnyParamTypeGetTypeID;
static constexpr const char *pyClassName = "AnyParamType";
static inline const MlirStringRef name = mlirTransformAnyParamTypeGetName();
using Base::Base;
static void bindDerived(ClassTy &c) {
c.def_static(
"get",
[](DefaultingPyMlirContext context) {
return AnyParamType(context->getRef(), mlirTransformAnyParamTypeGet(
context.get()->get()));
},
"Get an instance of AnyParamType in the given context.",
nb::arg("context").none() = nb::none());
}
};
//===-------------------------------------------------------------------===//
// AnyValueType
//===-------------------------------------------------------------------===//
struct AnyValueType : PyConcreteType<AnyValueType> {
static constexpr IsAFunctionTy isaFunction = mlirTypeIsATransformAnyValueType;
static constexpr GetTypeIDFunctionTy getTypeIdFunction =
mlirTransformAnyValueTypeGetTypeID;
static constexpr const char *pyClassName = "AnyValueType";
static inline const MlirStringRef name = mlirTransformAnyValueTypeGetName();
using Base::Base;
static void bindDerived(ClassTy &c) {
c.def_static(
"get",
[](DefaultingPyMlirContext context) {
return AnyValueType(context->getRef(), mlirTransformAnyValueTypeGet(
context.get()->get()));
},
"Get an instance of AnyValueType in the given context.",
nb::arg("context").none() = nb::none());
}
};
//===-------------------------------------------------------------------===//
// OperationType
//===-------------------------------------------------------------------===//
struct OperationType : PyConcreteType<OperationType> {
static constexpr IsAFunctionTy isaFunction =
mlirTypeIsATransformOperationType;
static constexpr GetTypeIDFunctionTy getTypeIdFunction =
mlirTransformOperationTypeGetTypeID;
static constexpr const char *pyClassName = "OperationType";
static inline const MlirStringRef name = mlirTransformOperationTypeGetName();
using Base::Base;
static void bindDerived(ClassTy &c) {
c.def_static(
"get",
[](const std::string &operationName, DefaultingPyMlirContext context) {
MlirStringRef cOperationName =
mlirStringRefCreate(operationName.data(), operationName.size());
return OperationType(context->getRef(),
mlirTransformOperationTypeGet(
context.get()->get(), cOperationName));
},
"Get an instance of OperationType for the given kind in the given "
"context",
nb::arg("operation_name"), nb::arg("context").none() = nb::none());
c.def_prop_ro(
"operation_name",
[](const OperationType &type) {
MlirStringRef operationName =
mlirTransformOperationTypeGetOperationName(type);
return nb::str(operationName.data, operationName.length);
},
"Get the name of the payload operation accepted by the handle.");
}
};
//===-------------------------------------------------------------------===//
// ParamType
//===-------------------------------------------------------------------===//
struct ParamType : PyConcreteType<ParamType> {
static constexpr IsAFunctionTy isaFunction = mlirTypeIsATransformParamType;
static constexpr GetTypeIDFunctionTy getTypeIdFunction =
mlirTransformParamTypeGetTypeID;
static constexpr const char *pyClassName = "ParamType";
static inline const MlirStringRef name = mlirTransformParamTypeGetName();
using Base::Base;
static void bindDerived(ClassTy &c) {
c.def_static(
"get",
[](const PyType &type, DefaultingPyMlirContext context) {
return ParamType(context->getRef(), mlirTransformParamTypeGet(
context.get()->get(), type));
},
"Get an instance of ParamType for the given type in the given context.",
nb::arg("type"), nb::arg("context").none() = nb::none());
c.def_prop_ro(
"type",
[](ParamType type) {
return PyType(type.getContext(), mlirTransformParamTypeGetType(type))
.maybeDownCast();
},
"Get the type this ParamType is associated with.");
}
};
static void populateDialectTransformSubmodule(nb::module_ &m) {
AnyOpType::bind(m);
AnyParamType::bind(m);
AnyValueType::bind(m);
OperationType::bind(m);
ParamType::bind(m);
}
} // namespace transform
} // namespace MLIR_BINDINGS_PYTHON_DOMAIN
} // namespace python
} // namespace mlir
NB_MODULE(_mlirDialectsTransform, m) {
m.doc() = "MLIR Transform dialect.";
mlir::python::MLIR_BINDINGS_PYTHON_DOMAIN::transform::
populateDialectTransformSubmodule(m);
}