Eugene Epshteyn
d1ad52f0ca
Audit of every #include directive in flang/lib/ and flang/include/flang/: - Remove 423 #include directives (293 from lib/ translation units, 23 from lib-private headers, 107 from public headers) that are not needed: no entity declared by the removed header is used - directly or in any conditional-compilation branch (Windows, macOS, ARM/PowerPC, REAL(16)/REAL(2) configuration macros) - in the including file, and for headers no consumer in flang/lib, flang/tools, flang/unittests, or flang-rt relies on the include as a re-export. Load-bearing includes were examined and retained: textual .inc/.def expansions, tablegen pass-header declaration/definition pairings, dialect headers carrying generated-op interface dependencies, config-macro providers (e.g. float128.h ahead of matmul-instances.inc guards), and ADL formatting machinery (Evaluate/formatting.h). - Add 5 missing direct #includes in lib translation units that used entities only via now-removed transitive includes, and drop one vestigial 'using namespace Fortran::runtime;' whose declaring header no longer arrives transitively (nothing namespace-qualified from it was used), per the include rules in flang/docs/C++style.md. Assisted-by: AI
64 lines
2.6 KiB
C++
64 lines
2.6 KiB
C++
//===-- lib/Semantics/check-nullify.cpp -----------------------------------===//
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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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#include "check-nullify.h"
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#include "definable.h"
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#include "flang/Evaluate/expression.h"
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#include "flang/Parser/message.h"
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#include "flang/Parser/parse-tree.h"
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#include "flang/Semantics/tools.h"
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namespace Fortran::semantics {
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void NullifyChecker::Leave(const parser::NullifyStmt &nullifyStmt) {
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CHECK(context_.location());
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const Scope &scope{context_.FindScope(*context_.location())};
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for (const parser::PointerObject &pointerObject : nullifyStmt.v) {
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common::visit(
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common::visitors{
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[&](const parser::Name &name) {
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if (name.symbol) {
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if (auto whyNot{WhyNotDefinable(name.source, scope,
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DefinabilityFlags{DefinabilityFlag::PointerDefinition},
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*name.symbol)}) {
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context_.messages()
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.Say(name.source,
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"'%s' may not appear in NULLIFY"_err_en_US,
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name.source)
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.Attach(std::move(
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whyNot->set_severity(parser::Severity::Because)));
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}
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}
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},
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[&](const parser::StructureComponent &structureComponent) {
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const auto &component{structureComponent.Component()};
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SourceName at{component.source};
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if (const auto *checkedExpr{GetExpr(context_, pointerObject)}) {
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if (auto whyNot{WhyNotDefinable(at, scope,
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DefinabilityFlags{DefinabilityFlag::PointerDefinition},
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*checkedExpr)}) {
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context_.messages()
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.Say(at, "'%s' may not appear in NULLIFY"_err_en_US, at)
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.Attach(std::move(
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whyNot->set_severity(parser::Severity::Because)));
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}
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}
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},
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},
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pointerObject.u);
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}
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// From 9.7.3.1(1)
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// A pointer-object shall not depend on the value,
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// bounds, or association status of another pointer-
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// object in the same NULLIFY statement.
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// This restriction is the programmer's responsibility.
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// Some dependencies can be found compile time or at
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// runtime, but for now we choose to skip such checks.
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}
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} // namespace Fortran::semantics
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