bfb1ba7526
depends on D150839
This diff uses `MlirTypeID` to register `TypeCaster`s (i.e., `[](PyType pyType) -> DerivedTy { return pyType; }`) for all concrete types (i.e., `PyConcrete<...>`) that are then queried for (by `MlirTypeID`) and called in `struct type_caster<MlirType>::cast`. The result is that anywhere an `MlirType mlirType` is returned from a python binding, that `mlirType` is automatically cast to the correct concrete type. For example:
```
c0 = arith.ConstantOp(f32, 0.0)
# CHECK: F32Type(f32)
print(repr(c0.result.type))
unranked_tensor_type = UnrankedTensorType.get(f32)
unranked_tensor = tensor.FromElementsOp(unranked_tensor_type, [c0]).result
# CHECK: UnrankedTensorType
print(type(unranked_tensor.type).__name__)
# CHECK: UnrankedTensorType(tensor<*xf32>)
print(repr(unranked_tensor.type))
```
This functionality immediately extends to typed attributes (i.e., `attr.type`).
The diff also implements similar functionality for `mlir_type_subclass`es but in a slightly different way - for such types (which have no cpp corresponding `class` or `struct`) the user must provide a type caster in python (similar to how `AttrBuilder` works) or in cpp as a `py::cpp_function`.
Reviewed By: ftynse
Differential Revision: https://reviews.llvm.org/D150927
39 lines
1.1 KiB
C++
39 lines
1.1 KiB
C++
//===- PythonTestCAPI.h - C API for the PythonTest dialect ------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef MLIR_TEST_PYTHON_LIB_PYTHONTESTCAPI_H
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#define MLIR_TEST_PYTHON_LIB_PYTHONTESTCAPI_H
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#include "mlir-c/IR.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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MLIR_DECLARE_CAPI_DIALECT_REGISTRATION(PythonTest, python_test);
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MLIR_CAPI_EXPORTED bool
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mlirAttributeIsAPythonTestTestAttribute(MlirAttribute attr);
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MLIR_CAPI_EXPORTED MlirAttribute
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mlirPythonTestTestAttributeGet(MlirContext context);
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MLIR_CAPI_EXPORTED bool mlirTypeIsAPythonTestTestType(MlirType type);
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MLIR_CAPI_EXPORTED MlirType mlirPythonTestTestTypeGet(MlirContext context);
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MLIR_CAPI_EXPORTED MlirTypeID mlirPythonTestTestTypeGetTypeID(void);
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MLIR_CAPI_EXPORTED bool mlirTypeIsAPythonTestTestTensorValue(MlirValue value);
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#ifdef __cplusplus
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}
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#endif
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#endif // MLIR_TEST_PYTHON_LIB_PYTHONTESTCAPI_H
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