llvm/flang/lib/semantics/assignment.h
2019-03-20 11:38:45 -07:00

78 lines
2.5 KiB
C++

// Copyright (c) 2018-2019, NVIDIA CORPORATION. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef FORTRAN_SEMANTICS_ASSIGNMENT_H_
#define FORTRAN_SEMANTICS_ASSIGNMENT_H_
#include "semantics.h"
#include "../common/indirection.h"
#include "../evaluate/expression.h"
namespace Fortran::parser {
template<typename> struct Statement;
struct AssignmentStmt;
struct ConcurrentHeader;
struct ForallStmt;
struct PointerAssignmentStmt;
struct Program;
struct WhereStmt;
struct WhereConstruct;
struct ForallStmt;
struct ForallConstruct;
}
namespace Fortran::evaluate {
void CheckPointerAssignment(parser::ContextualMessages &, const Symbol &,
const evaluate::Expr<evaluate::SomeType> &);
}
namespace Fortran::semantics {
class AssignmentContext;
}
extern template class Fortran::common::Indirection<
Fortran::semantics::AssignmentContext>;
namespace Fortran::semantics {
class AssignmentChecker : public virtual BaseChecker {
public:
explicit AssignmentChecker(SemanticsContext &);
~AssignmentChecker();
void Enter(const parser::AssignmentStmt &);
void Enter(const parser::PointerAssignmentStmt &);
void Enter(const parser::WhereStmt &);
void Enter(const parser::WhereConstruct &);
void Enter(const parser::ForallStmt &);
void Enter(const parser::ForallConstruct &);
private:
common::Indirection<AssignmentContext> context_;
};
// Semantic analysis of an assignment statement or WHERE/FORALL construct.
void AnalyzeAssignment(
SemanticsContext &, const parser::Statement<parser::AssignmentStmt> &);
void AnalyzeAssignment(SemanticsContext &,
const parser::Statement<parser::PointerAssignmentStmt> &);
void AnalyzeAssignment(
SemanticsContext &, const parser::Statement<parser::WhereStmt> &);
void AnalyzeAssignment(
SemanticsContext &, const parser::Statement<parser::ForallStmt> &);
// R1125 concurrent-header is used in FORALL statements & constructs as
// well as in DO CONCURRENT loops.
void AnalyzeConcurrentHeader(
SemanticsContext &, const parser::ConcurrentHeader &);
}
#endif // FORTRAN_SEMANTICS_ASSIGNMENT_H_