Files
clang-p2996/flang/lib/Semantics/check-nullify.cpp
Gabriel Ravier 9e37b1e5a0 [flang] Fixed a number of typos
I went over the output of the following mess of a command:

`(ulimit -m 2000000; ulimit -v 2000000; git ls-files -z | parallel --xargs -0 cat | aspell list --mode=none --ignore-case | grep -E '^[A-Za-z][a-z]*$' | sort | uniq -c | sort -n | grep -vE '.{25}' | aspell pipe -W3 | grep : | cut -d' ' -f2 | less)`

and proceeded to spend a few days looking at it to find probable typos
and fixed a few hundred of them in all of the llvm project (note, the
ones I found are not anywhere near all of them, but it seems like a
good start).

Reviewed By: awarzynski, clementval

Differential Revision: https://reviews.llvm.org/D130844
2022-08-25 18:11:38 +02:00

68 lines
2.9 KiB
C++

//===-- lib/Semantics/check-nullify.cpp -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "check-nullify.h"
#include "assignment.h"
#include "flang/Evaluate/expression.h"
#include "flang/Parser/message.h"
#include "flang/Parser/parse-tree.h"
#include "flang/Semantics/expression.h"
#include "flang/Semantics/tools.h"
namespace Fortran::semantics {
void NullifyChecker::Leave(const parser::NullifyStmt &nullifyStmt) {
CHECK(context_.location());
const Scope &scope{context_.FindScope(*context_.location())};
const Scope *pure{FindPureProcedureContaining(scope)};
parser::ContextualMessages messages{
*context_.location(), &context_.messages()};
for (const parser::PointerObject &pointerObject : nullifyStmt.v) {
common::visit(
common::visitors{
[&](const parser::Name &name) {
const Symbol *symbol{name.symbol};
if (context_.HasError(symbol)) {
// already reported an error
} else if (!IsVariableName(*symbol) &&
!IsProcedurePointer(*symbol)) {
messages.Say(name.source,
"name in NULLIFY statement must be a variable or procedure pointer"_err_en_US);
} else if (!IsPointer(*symbol)) { // C951
messages.Say(name.source,
"name in NULLIFY statement must have the POINTER attribute"_err_en_US);
} else if (pure) {
CheckDefinabilityInPureScope(messages, *symbol, scope, *pure);
}
},
[&](const parser::StructureComponent &structureComponent) {
if (const auto *checkedExpr{GetExpr(context_, pointerObject)}) {
if (!IsPointer(*structureComponent.component.symbol)) { // C951
messages.Say(structureComponent.component.source,
"component in NULLIFY statement must have the POINTER attribute"_err_en_US);
} else if (pure) {
if (const Symbol * symbol{GetFirstSymbol(*checkedExpr)}) {
CheckDefinabilityInPureScope(
messages, *symbol, scope, *pure);
}
}
}
},
},
pointerObject.u);
}
// From 9.7.3.1(1)
// A pointer-object shall not depend on the value,
// bounds, or association status of another pointer-
// object in the same NULLIFY statement.
// This restriction is the programmer's responsibility.
// Some dependencies can be found compile time or at
// runtime, but for now we choose to skip such checks.
}
} // namespace Fortran::semantics