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
40 lines
1.5 KiB
C++
40 lines
1.5 KiB
C++
//===-- runtime/derived.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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// Internal runtime utilities for derived type operations.
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#ifndef FLANG_RUNTIME_DERIVED_H_
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#define FLANG_RUNTIME_DERIVED_H_
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namespace Fortran::runtime::typeInfo {
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class DerivedType;
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}
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namespace Fortran::runtime {
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class Descriptor;
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class Terminator;
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// Perform default component initialization, allocate automatic components.
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// Returns a STAT= code (0 when all's well).
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int Initialize(const Descriptor &, const typeInfo::DerivedType &, Terminator &,
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bool hasStat = false, const Descriptor *errMsg = nullptr);
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// Call FINAL subroutines, deallocate allocatable & automatic components.
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// Does not deallocate the original descriptor.
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void Destroy(const Descriptor &, bool finalize, const typeInfo::DerivedType &);
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// Assigns one object to another via intrinsic assignment (F'2018 10.2.1.3) or
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// defined assignment (10.2.1.4), as appropriate. Performs scalar expansion
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// or allocatable reallocation as needed. Does not perform intrinsic
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// assignment implicit type conversion.
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void Assign(Descriptor &, const Descriptor &, const typeInfo::DerivedType &,
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Terminator &);
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} // namespace Fortran::runtime
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#endif // FLANG_RUNTIME_DERIVED_H_
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