a48e41683a
Use derived type information tables to drive default component initialization (when needed), component destruction, and calls to final subroutines. Perform these operations automatically for ALLOCATE()/DEALLOCATE() APIs for allocatables, automatics, and pointers. Add APIs for use in lowering to perform these operations for non-allocatable/automatic non-pointer variables. Data pointer component initialization supports arbitrary constant designators, a F'2008 feature, which may be a first for Fortran implementations. Differential Revision: https://reviews.llvm.org/D106297
44 lines
1.6 KiB
C++
44 lines
1.6 KiB
C++
//===-- runtime/derived-api.h ---------------------------------------------===//
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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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// API for lowering to use for operations on derived type objects.
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// Initialiaztion and finalization are implied for pointer and allocatable
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// ALLOCATE()/DEALLOCATE() respectively, so these APIs should be used only for
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// local variables. Whole allocatable assignment should use AllocatableAssign()
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// instead of this Assign().
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#ifndef FLANG_RUNTIME_DERIVED_API_H_
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#define FLANG_RUNTIME_DERIVED_API_H_
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#include "entry-names.h"
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namespace Fortran::runtime {
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class Descriptor;
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extern "C" {
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// Initializes and allocates an object's components, if it has a derived type
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// with any default component initialization or automatic components.
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// The descriptor must be initialized and non-null.
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void RTNAME(Initialize)(
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const Descriptor &, const char *sourceFile = nullptr, int sourceLine = 0);
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// Finalizes an object and its components. Deallocates any
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// allocatable/automatic components. Does not deallocate the descriptor's
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// storage.
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void RTNAME(Destroy)(const Descriptor &);
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// Intrinsic or defined assignment, with scalar expansion but not type
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// conversion.
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void RTNAME(Assign)(const Descriptor &, const Descriptor &,
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const char *sourceFile = nullptr, int sourceLine = 0);
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} // extern "C"
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} // namespace Fortran::runtime
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#endif // FLANG_RUNTIME_DERIVED_API_H_
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