xref: /llvm-project/flang/lib/Semantics/pointer-assignment.cpp (revision 0f973ac783aa100cfbce1cd2c6e8a3a8f648fae7) 
1 //===-- lib/Semantics/pointer-assignment.cpp ------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 #include "pointer-assignment.h"
10 #include "definable.h"
11 #include "flang/Common/idioms.h"
12 #include "flang/Common/restorer.h"
13 #include "flang/Common/template.h"
14 #include "flang/Evaluate/characteristics.h"
15 #include "flang/Evaluate/expression.h"
16 #include "flang/Evaluate/fold.h"
17 #include "flang/Evaluate/tools.h"
18 #include "flang/Parser/message.h"
19 #include "flang/Parser/parse-tree-visitor.h"
20 #include "flang/Parser/parse-tree.h"
21 #include "flang/Semantics/expression.h"
22 #include "flang/Semantics/symbol.h"
23 #include "flang/Semantics/tools.h"
24 #include "llvm/Support/raw_ostream.h"
25 #include <optional>
26 #include <set>
27 #include <string>
28 #include <type_traits>
29 
30 // Semantic checks for pointer assignment.
31 
32 namespace Fortran::semantics {
33 
34 using namespace parser::literals;
35 using evaluate::characteristics::DummyDataObject;
36 using evaluate::characteristics::FunctionResult;
37 using evaluate::characteristics::Procedure;
38 using evaluate::characteristics::TypeAndShape;
39 using parser::MessageFixedText;
40 using parser::MessageFormattedText;
41 
42 class PointerAssignmentChecker {
43 public:
44   PointerAssignmentChecker(SemanticsContext &context, const Scope &scope,
45       parser::CharBlock source, const std::string &description)
46       : context_{context}, scope_{scope}, source_{source}, description_{
47                                                                description} {}
48   PointerAssignmentChecker(
49       SemanticsContext &context, const Scope &scope, const Symbol &lhs)
50       : context_{context}, scope_{scope}, source_{lhs.name()},
51         description_{"pointer '"s + lhs.name().ToString() + '\''}, lhs_{&lhs} {
52     set_lhsType(TypeAndShape::Characterize(lhs, foldingContext_));
53     set_isContiguous(lhs.attrs().test(Attr::CONTIGUOUS));
54     set_isVolatile(lhs.attrs().test(Attr::VOLATILE));
55   }
56   PointerAssignmentChecker &set_lhsType(std::optional<TypeAndShape> &&);
57   PointerAssignmentChecker &set_isContiguous(bool);
58   PointerAssignmentChecker &set_isVolatile(bool);
59   PointerAssignmentChecker &set_isBoundsRemapping(bool);
60   PointerAssignmentChecker &set_isAssumedRank(bool);
61   PointerAssignmentChecker &set_pointerComponentLHS(const Symbol *);
62   bool CheckLeftHandSide(const SomeExpr &);
63   bool Check(const SomeExpr &);
64 
65 private:
66   bool CharacterizeProcedure();
67   template <typename T> bool Check(const T &);
68   template <typename T> bool Check(const evaluate::Expr<T> &);
69   template <typename T> bool Check(const evaluate::FunctionRef<T> &);
70   template <typename T> bool Check(const evaluate::Designator<T> &);
71   bool Check(const evaluate::NullPointer &);
72   bool Check(const evaluate::ProcedureDesignator &);
73   bool Check(const evaluate::ProcedureRef &);
74   // Target is a procedure
75   bool Check(parser::CharBlock rhsName, bool isCall,
76       const Procedure * = nullptr,
77       const evaluate::SpecificIntrinsic *specific = nullptr);
78   bool LhsOkForUnlimitedPoly() const;
79   template <typename... A> parser::Message *Say(A &&...);
80   template <typename FeatureOrUsageWarning, typename... A>
81   parser::Message *Warn(FeatureOrUsageWarning, A &&...);
82 
83   SemanticsContext &context_;
84   evaluate::FoldingContext &foldingContext_{context_.foldingContext()};
85   const Scope &scope_;
86   const parser::CharBlock source_;
87   const std::string description_;
88   const Symbol *lhs_{nullptr};
89   std::optional<TypeAndShape> lhsType_;
90   std::optional<Procedure> procedure_;
91   bool characterizedProcedure_{false};
92   bool isContiguous_{false};
93   bool isVolatile_{false};
94   bool isBoundsRemapping_{false};
95   bool isAssumedRank_{false};
96   const Symbol *pointerComponentLHS_{nullptr};
97 };
98 
99 PointerAssignmentChecker &PointerAssignmentChecker::set_lhsType(
100     std::optional<TypeAndShape> &&lhsType) {
101   lhsType_ = std::move(lhsType);
102   return *this;
103 }
104 
105 PointerAssignmentChecker &PointerAssignmentChecker::set_isContiguous(
106     bool isContiguous) {
107   isContiguous_ = isContiguous;
108   return *this;
109 }
110 
111 PointerAssignmentChecker &PointerAssignmentChecker::set_isVolatile(
112     bool isVolatile) {
113   isVolatile_ = isVolatile;
114   return *this;
115 }
116 
117 PointerAssignmentChecker &PointerAssignmentChecker::set_isBoundsRemapping(
118     bool isBoundsRemapping) {
119   isBoundsRemapping_ = isBoundsRemapping;
120   return *this;
121 }
122 
123 PointerAssignmentChecker &PointerAssignmentChecker::set_isAssumedRank(
124     bool isAssumedRank) {
125   isAssumedRank_ = isAssumedRank;
126   return *this;
127 }
128 
129 PointerAssignmentChecker &PointerAssignmentChecker::set_pointerComponentLHS(
130     const Symbol *symbol) {
131   pointerComponentLHS_ = symbol;
132   return *this;
133 }
134 
135 bool PointerAssignmentChecker::CharacterizeProcedure() {
136   if (!characterizedProcedure_) {
137     characterizedProcedure_ = true;
138     if (lhs_ && IsProcedure(*lhs_)) {
139       procedure_ = Procedure::Characterize(*lhs_, foldingContext_);
140     }
141   }
142   return procedure_.has_value();
143 }
144 
145 bool PointerAssignmentChecker::CheckLeftHandSide(const SomeExpr &lhs) {
146   if (auto whyNot{WhyNotDefinable(foldingContext_.messages().at(), scope_,
147           DefinabilityFlags{DefinabilityFlag::PointerDefinition}, lhs)}) {
148     if (auto *msg{Say(
149             "The left-hand side of a pointer assignment is not definable"_err_en_US)}) {
150       msg->Attach(std::move(whyNot->set_severity(parser::Severity::Because)));
151     }
152     return false;
153   } else if (evaluate::IsAssumedRank(lhs)) {
154     Say("The left-hand side of a pointer assignment must not be an assumed-rank dummy argument"_err_en_US);
155     return false;
156   } else {
157     return true;
158   }
159 }
160 
161 template <typename T> bool PointerAssignmentChecker::Check(const T &) {
162   // Catch-all case for really bad target expression
163   Say("Target associated with %s must be a designator or a call to a"
164       " pointer-valued function"_err_en_US,
165       description_);
166   return false;
167 }
168 
169 template <typename T>
170 bool PointerAssignmentChecker::Check(const evaluate::Expr<T> &x) {
171   return common::visit([&](const auto &x) { return Check(x); }, x.u);
172 }
173 
174 bool PointerAssignmentChecker::Check(const SomeExpr &rhs) {
175   if (HasVectorSubscript(rhs)) { // C1025
176     Say("An array section with a vector subscript may not be a pointer target"_err_en_US);
177     return false;
178   }
179   if (ExtractCoarrayRef(rhs)) { // C1026
180     Say("A coindexed object may not be a pointer target"_err_en_US);
181     return false;
182   }
183   if (!common::visit([&](const auto &x) { return Check(x); }, rhs.u)) {
184     return false;
185   }
186   if (IsNullPointer(rhs)) {
187     return true;
188   }
189   if (lhs_ && IsProcedure(*lhs_)) {
190     return true;
191   }
192   if (const auto *pureProc{FindPureProcedureContaining(scope_)}) {
193     if (pointerComponentLHS_) { // C1594(4) is a hard error
194       if (const Symbol * object{FindExternallyVisibleObject(rhs, *pureProc)}) {
195         if (auto *msg{Say(
196                 "Externally visible object '%s' may not be associated with pointer component '%s' in a pure procedure"_err_en_US,
197                 object->name(), pointerComponentLHS_->name())}) {
198           msg->Attach(object->name(), "Object declaration"_en_US)
199               .Attach(
200                   pointerComponentLHS_->name(), "Pointer declaration"_en_US);
201         }
202         return false;
203       }
204     } else if (const Symbol * base{GetFirstSymbol(rhs)}) {
205       if (const char *why{WhyBaseObjectIsSuspicious(
206               base->GetUltimate(), scope_)}) { // C1594(3)
207         evaluate::SayWithDeclaration(foldingContext_.messages(), *base,
208             "A pure subprogram may not use '%s' as the target of pointer assignment because it is %s"_err_en_US,
209             base->name(), why);
210         return false;
211       }
212     }
213   }
214   if (isContiguous_) {
215     if (auto contiguous{evaluate::IsContiguous(rhs, foldingContext_)}) {
216       if (!*contiguous) {
217         Say("CONTIGUOUS pointer may not be associated with a discontiguous target"_err_en_US);
218         return false;
219       }
220     } else {
221       Warn(common::UsageWarning::PointerToPossibleNoncontiguous,
222           "Target of CONTIGUOUS pointer association is not known to be contiguous"_warn_en_US);
223     }
224   }
225   // Warn about undefinable data targets
226   if (auto because{
227           WhyNotDefinable(foldingContext_.messages().at(), scope_, {}, rhs)}) {
228     if (auto *msg{Warn(common::UsageWarning::PointerToUndefinable,
229             "Pointer target is not a definable variable"_warn_en_US)}) {
230       msg->Attach(std::move(because->set_severity(parser::Severity::Because)));
231       return false;
232     }
233   }
234   return true;
235 }
236 
237 bool PointerAssignmentChecker::Check(const evaluate::NullPointer &) {
238   return true; // P => NULL() without MOLD=; always OK
239 }
240 
241 template <typename T>
242 bool PointerAssignmentChecker::Check(const evaluate::FunctionRef<T> &f) {
243   std::string funcName;
244   const auto *symbol{f.proc().GetSymbol()};
245   if (symbol) {
246     funcName = symbol->name().ToString();
247   } else if (const auto *intrinsic{f.proc().GetSpecificIntrinsic()}) {
248     funcName = intrinsic->name;
249   }
250   auto proc{
251       Procedure::Characterize(f.proc(), foldingContext_, /*emitError=*/true)};
252   if (!proc) {
253     return false;
254   }
255   std::optional<MessageFixedText> msg;
256   const auto &funcResult{proc->functionResult}; // C1025
257   if (!funcResult) {
258     msg = "%s is associated with the non-existent result of reference to"
259           " procedure"_err_en_US;
260   } else if (CharacterizeProcedure()) {
261     // Shouldn't be here in this function unless lhs is an object pointer.
262     msg = "Procedure %s is associated with the result of a reference to"
263           " function '%s' that does not return a procedure pointer"_err_en_US;
264   } else if (funcResult->IsProcedurePointer()) {
265     msg = "Object %s is associated with the result of a reference to"
266           " function '%s' that is a procedure pointer"_err_en_US;
267   } else if (!funcResult->attrs.test(FunctionResult::Attr::Pointer)) {
268     msg = "%s is associated with the result of a reference to function '%s'"
269           " that is a not a pointer"_err_en_US;
270   } else if (isContiguous_ &&
271       !funcResult->attrs.test(FunctionResult::Attr::Contiguous)) {
272     auto restorer{common::ScopedSet(lhs_, symbol)};
273     if (Warn(common::UsageWarning::PointerToPossibleNoncontiguous,
274             "CONTIGUOUS %s is associated with the result of reference to function '%s' that is not known to be contiguous"_warn_en_US,
275             description_, funcName)) {
276       return false;
277     }
278   } else if (lhsType_) {
279     const auto *frTypeAndShape{funcResult->GetTypeAndShape()};
280     CHECK(frTypeAndShape);
281     if (!lhsType_->IsCompatibleWith(foldingContext_.messages(), *frTypeAndShape,
282             "pointer", "function result",
283             /*omitShapeConformanceCheck=*/isBoundsRemapping_ || isAssumedRank_,
284             evaluate::CheckConformanceFlags::BothDeferredShape)) {
285       return false; // IsCompatibleWith() emitted message
286     }
287   }
288   if (msg) {
289     auto restorer{common::ScopedSet(lhs_, symbol)};
290     Say(*msg, description_, funcName);
291     return false;
292   }
293   return true;
294 }
295 
296 template <typename T>
297 bool PointerAssignmentChecker::Check(const evaluate::Designator<T> &d) {
298   const Symbol *last{d.GetLastSymbol()};
299   const Symbol *base{d.GetBaseObject().symbol()};
300   if (!last || !base) {
301     // P => "character literal"(1:3)
302     Say("Pointer target is not a named entity"_err_en_US);
303     return false;
304   }
305   std::optional<std::variant<MessageFixedText, MessageFormattedText>> msg;
306   if (CharacterizeProcedure()) {
307     // Shouldn't be here in this function unless lhs is an object pointer.
308     msg = "In assignment to procedure %s, the target is not a procedure or"
309           " procedure pointer"_err_en_US;
310   } else if (!evaluate::GetLastTarget(GetSymbolVector(d))) { // C1025
311     msg = "In assignment to object %s, the target '%s' is not an object with"
312           " POINTER or TARGET attributes"_err_en_US;
313   } else if (auto rhsType{TypeAndShape::Characterize(d, foldingContext_)}) {
314     if (!lhsType_) {
315       msg = "%s associated with object '%s' with incompatible type or"
316             " shape"_err_en_US;
317     } else if (rhsType->corank() > 0 &&
318         (isVolatile_ != last->attrs().test(Attr::VOLATILE))) { // C1020
319       // TODO: what if A is VOLATILE in A%B%C?  need a better test here
320       if (isVolatile_) {
321         msg = "Pointer may not be VOLATILE when target is a"
322               " non-VOLATILE coarray"_err_en_US;
323       } else {
324         msg = "Pointer must be VOLATILE when target is a"
325               " VOLATILE coarray"_err_en_US;
326       }
327     } else if (rhsType->type().IsUnlimitedPolymorphic()) {
328       if (!LhsOkForUnlimitedPoly()) {
329         msg = "Pointer type must be unlimited polymorphic or non-extensible"
330               " derived type when target is unlimited polymorphic"_err_en_US;
331       }
332     } else {
333       if (!lhsType_->type().IsTkLenCompatibleWith(rhsType->type())) {
334         msg = MessageFormattedText{
335             "Target type %s is not compatible with pointer type %s"_err_en_US,
336             rhsType->type().AsFortran(), lhsType_->type().AsFortran()};
337 
338       } else if (!isBoundsRemapping_ &&
339           !lhsType_->attrs().test(TypeAndShape::Attr::AssumedRank)) {
340         int lhsRank{lhsType_->Rank()};
341         int rhsRank{rhsType->Rank()};
342         if (lhsRank != rhsRank) {
343           msg = MessageFormattedText{
344               "Pointer has rank %d but target has rank %d"_err_en_US, lhsRank,
345               rhsRank};
346         }
347       }
348     }
349   }
350   if (msg) {
351     auto restorer{common::ScopedSet(lhs_, last)};
352     if (auto *m{std::get_if<MessageFixedText>(&*msg)}) {
353       std::string buf;
354       llvm::raw_string_ostream ss{buf};
355       d.AsFortran(ss);
356       Say(*m, description_, buf);
357     } else {
358       Say(std::get<MessageFormattedText>(*msg));
359     }
360     return false;
361   } else {
362     context_.NoteDefinedSymbol(*base);
363     return true;
364   }
365 }
366 
367 // Common handling for procedure pointer right-hand sides
368 bool PointerAssignmentChecker::Check(parser::CharBlock rhsName, bool isCall,
369     const Procedure *rhsProcedure,
370     const evaluate::SpecificIntrinsic *specific) {
371   std::string whyNot;
372   std::optional<std::string> warning;
373   CharacterizeProcedure();
374   if (std::optional<MessageFixedText> msg{evaluate::CheckProcCompatibility(
375           isCall, procedure_, rhsProcedure, specific, whyNot, warning,
376           /*ignoreImplicitVsExplicit=*/isCall)}) {
377     Say(std::move(*msg), description_, rhsName, whyNot);
378     return false;
379   }
380   if (warning) {
381     Warn(common::UsageWarning::ProcDummyArgShapes,
382         "%s and %s may not be completely compatible procedures: %s"_warn_en_US,
383         description_, rhsName, std::move(*warning));
384   }
385   return true;
386 }
387 
388 bool PointerAssignmentChecker::Check(const evaluate::ProcedureDesignator &d) {
389   const Symbol *symbol{d.GetSymbol()};
390   if (symbol) {
391     if (const auto *subp{
392             symbol->GetUltimate().detailsIf<SubprogramDetails>()}) {
393       if (subp->stmtFunction()) {
394         evaluate::SayWithDeclaration(foldingContext_.messages(), *symbol,
395             "Statement function '%s' may not be the target of a pointer assignment"_err_en_US,
396             symbol->name());
397         return false;
398       }
399     } else if (symbol->has<ProcBindingDetails>()) {
400       evaluate::AttachDeclaration(
401           Warn(common::LanguageFeature::BindingAsProcedure,
402               "Procedure binding '%s' used as target of a pointer assignment"_port_en_US,
403               symbol->name()),
404           *symbol);
405     }
406   }
407   if (auto chars{
408           Procedure::Characterize(d, foldingContext_, /*emitError=*/true)}) {
409     // Disregard the elemental attribute of RHS intrinsics.
410     if (symbol && symbol->GetUltimate().attrs().test(Attr::INTRINSIC)) {
411       chars->attrs.reset(Procedure::Attr::Elemental);
412     }
413     return Check(d.GetName(), false, &*chars, d.GetSpecificIntrinsic());
414   } else {
415     return Check(d.GetName(), false);
416   }
417 }
418 
419 bool PointerAssignmentChecker::Check(const evaluate::ProcedureRef &ref) {
420   auto chars{Procedure::Characterize(ref, foldingContext_)};
421   return Check(ref.proc().GetName(), true, common::GetPtrFromOptional(chars));
422 }
423 
424 // The target can be unlimited polymorphic if the pointer is, or if it is
425 // a non-extensible derived type.
426 bool PointerAssignmentChecker::LhsOkForUnlimitedPoly() const {
427   const auto &type{lhsType_->type()};
428   if (type.category() != TypeCategory::Derived || type.IsAssumedType()) {
429     return false;
430   } else if (type.IsUnlimitedPolymorphic()) {
431     return true;
432   } else {
433     return !IsExtensibleType(&type.GetDerivedTypeSpec());
434   }
435 }
436 
437 template <typename... A>
438 parser::Message *PointerAssignmentChecker::Say(A &&...x) {
439   auto *msg{foldingContext_.messages().Say(std::forward<A>(x)...)};
440   if (msg) {
441     if (lhs_) {
442       return evaluate::AttachDeclaration(msg, *lhs_);
443     }
444     if (!source_.empty()) {
445       msg->Attach(source_, "Declaration of %s"_en_US, description_);
446     }
447   }
448   return msg;
449 }
450 
451 template <typename FeatureOrUsageWarning, typename... A>
452 parser::Message *PointerAssignmentChecker::Warn(
453     FeatureOrUsageWarning warning, A &&...x) {
454   auto *msg{context_.Warn(
455       warning, foldingContext_.messages().at(), std::forward<A>(x)...)};
456   if (msg) {
457     if (lhs_) {
458       return evaluate::AttachDeclaration(msg, *lhs_);
459     }
460     if (!source_.empty()) {
461       msg->Attach(source_, "Declaration of %s"_en_US, description_);
462     }
463   }
464   return msg;
465 }
466 
467 // Verify that any bounds on the LHS of a pointer assignment are valid.
468 // Return true if it is a bound-remapping so we can perform further checks.
469 static bool CheckPointerBounds(
470     evaluate::FoldingContext &context, const evaluate::Assignment &assignment) {
471   auto &messages{context.messages()};
472   const SomeExpr &lhs{assignment.lhs};
473   const SomeExpr &rhs{assignment.rhs};
474   bool isBoundsRemapping{false};
475   std::size_t numBounds{common::visit(
476       common::visitors{
477           [&](const evaluate::Assignment::BoundsSpec &bounds) {
478             return bounds.size();
479           },
480           [&](const evaluate::Assignment::BoundsRemapping &bounds) {
481             isBoundsRemapping = true;
482             evaluate::ExtentExpr lhsSizeExpr{1};
483             for (const auto &bound : bounds) {
484               lhsSizeExpr = std::move(lhsSizeExpr) *
485                   (common::Clone(bound.second) - common::Clone(bound.first) +
486                       evaluate::ExtentExpr{1});
487             }
488             if (std::optional<std::int64_t> lhsSize{evaluate::ToInt64(
489                     evaluate::Fold(context, std::move(lhsSizeExpr)))}) {
490               if (auto shape{evaluate::GetShape(context, rhs)}) {
491                 if (std::optional<std::int64_t> rhsSize{
492                         evaluate::ToInt64(evaluate::Fold(
493                             context, evaluate::GetSize(std::move(*shape))))}) {
494                   if (*lhsSize > *rhsSize) {
495                     messages.Say(
496                         "Pointer bounds require %d elements but target has"
497                         " only %d"_err_en_US,
498                         *lhsSize, *rhsSize); // 10.2.2.3(9)
499                   }
500                 }
501               }
502             }
503             return bounds.size();
504           },
505           [](const auto &) -> std::size_t {
506             DIE("not valid for pointer assignment");
507           },
508       },
509       assignment.u)};
510   if (numBounds > 0) {
511     if (lhs.Rank() != static_cast<int>(numBounds)) {
512       messages.Say("Pointer '%s' has rank %d but the number of bounds specified"
513                    " is %d"_err_en_US,
514           lhs.AsFortran(), lhs.Rank(), numBounds); // C1018
515     }
516   }
517   if (isBoundsRemapping && rhs.Rank() != 1 &&
518       !evaluate::IsSimplyContiguous(rhs, context)) {
519     messages.Say("Pointer bounds remapping target must have rank 1 or be"
520                  " simply contiguous"_err_en_US); // 10.2.2.3(9)
521   }
522   return isBoundsRemapping;
523 }
524 
525 bool CheckPointerAssignment(SemanticsContext &context,
526     const evaluate::Assignment &assignment, const Scope &scope) {
527   return CheckPointerAssignment(context, assignment.lhs, assignment.rhs, scope,
528       CheckPointerBounds(context.foldingContext(), assignment),
529       /*isAssumedRank=*/false);
530 }
531 
532 bool CheckPointerAssignment(SemanticsContext &context, const SomeExpr &lhs,
533     const SomeExpr &rhs, const Scope &scope, bool isBoundsRemapping,
534     bool isAssumedRank) {
535   const Symbol *pointer{GetLastSymbol(lhs)};
536   if (!pointer) {
537     return false; // error was reported
538   }
539   PointerAssignmentChecker checker{context, scope, *pointer};
540   checker.set_isBoundsRemapping(isBoundsRemapping);
541   checker.set_isAssumedRank(isAssumedRank);
542   bool lhsOk{checker.CheckLeftHandSide(lhs)};
543   bool rhsOk{checker.Check(rhs)};
544   return lhsOk && rhsOk; // don't short-circuit
545 }
546 
547 bool CheckStructConstructorPointerComponent(SemanticsContext &context,
548     const Symbol &lhs, const SomeExpr &rhs, const Scope &scope) {
549   return PointerAssignmentChecker{context, scope, lhs}
550       .set_pointerComponentLHS(&lhs)
551       .Check(rhs);
552 }
553 
554 bool CheckPointerAssignment(SemanticsContext &context, parser::CharBlock source,
555     const std::string &description, const DummyDataObject &lhs,
556     const SomeExpr &rhs, const Scope &scope, bool isAssumedRank) {
557   return PointerAssignmentChecker{context, scope, source, description}
558       .set_lhsType(common::Clone(lhs.type))
559       .set_isContiguous(lhs.attrs.test(DummyDataObject::Attr::Contiguous))
560       .set_isVolatile(lhs.attrs.test(DummyDataObject::Attr::Volatile))
561       .set_isAssumedRank(isAssumedRank)
562       .Check(rhs);
563 }
564 
565 bool CheckInitialDataPointerTarget(SemanticsContext &context,
566     const SomeExpr &pointer, const SomeExpr &init, const Scope &scope) {
567   return evaluate::IsInitialDataTarget(
568              init, &context.foldingContext().messages()) &&
569       CheckPointerAssignment(context, pointer, init, scope,
570           /*isBoundsRemapping=*/false,
571           /*isAssumedRank=*/false);
572 }
573 
574 } // namespace Fortran::semantics
575