776145492f
Move HasError and SetError into SemanticsContext so that we can do consistency checks: if a symbol has an error or we want to set the error flag, check that an error has been reported. Original-commit: flang-compiler/f18@4f6e3a04ca Reviewed-on: https://github.com/flang-compiler/f18/pull/429
76 lines
3 KiB
C++
76 lines
3 KiB
C++
// Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "check-deallocate.h"
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#include "expression.h"
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#include "tools.h"
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#include "../parser/message.h"
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#include "../parser/parse-tree.h"
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namespace Fortran::semantics {
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void DeallocateChecker::Leave(const parser::DeallocateStmt &deallocateStmt) {
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for (const parser::AllocateObject &allocateObject :
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std::get<std::list<parser::AllocateObject>>(deallocateStmt.t)) {
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std::visit(
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common::visitors{
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[&](const parser::Name &name) {
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auto const *symbol{name.symbol};
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if (context_.HasError(symbol)) {
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// already reported an error
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} else if (!IsVariableName(*symbol)) {
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context_.Say(name.source,
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"name in DEALLOCATE statement must be a variable name"_err_en_US);
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} else if (!IsAllocatableOrPointer(*symbol)) { // C932
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context_.Say(name.source,
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"name in DEALLOCATE statement must have the ALLOCATABLE or POINTER attribute"_err_en_US);
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}
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},
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[&](const parser::StructureComponent &structureComponent) {
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evaluate::ExpressionAnalyzer analyzer{context_};
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if (MaybeExpr checked{analyzer.Analyze(structureComponent)}) {
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if (!IsAllocatableOrPointer(
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*structureComponent.component.symbol)) { // C932
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context_.Say(structureComponent.component.source,
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"component in DEALLOCATE statement must have the ALLOCATABLE or POINTER attribute"_err_en_US);
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}
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}
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},
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},
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allocateObject.u);
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}
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bool gotStat{false}, gotMsg{false};
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for (const parser::StatOrErrmsg &deallocOpt :
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std::get<std::list<parser::StatOrErrmsg>>(deallocateStmt.t)) {
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std::visit(
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common::visitors{
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[&](const parser::StatVariable &statVariable) {
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if (gotStat) {
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context_.Say(
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"STAT may not be duplicated in a DEALLOCATE statement"_err_en_US);
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}
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gotStat = true;
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},
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[&](const parser::MsgVariable &msgVariable) {
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if (gotMsg) {
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context_.Say(
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"ERRMSG may not be duplicated in a DEALLOCATE statement"_err_en_US);
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}
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gotMsg = true;
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},
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},
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deallocOpt.u);
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}
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}
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} // namespace Fortran::semantics
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