check-call.h

//===-- lib/Semantics/check-call.h ------------------------------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
 
// Constraint checking for procedure references
 
#ifndef FORTRAN_SEMANTICS_CHECK_CALL_H_
#define FORTRAN_SEMANTICS_CHECK_CALL_H_
 
#include "flang/Evaluate/call.h"
#include "flang/Parser/message.h"
 
namespace Fortran::evaluate::characteristics {
struct Procedure;
}
namespace Fortran::evaluate {
class FoldingContext;
}
 
namespace Fortran::semantics {
class Scope;
class SemanticsContext;
 
// Check keyword constraints on actual arguments for procedures with implicit
// interfaces.
void CheckImplicitInterfaceArgKeywords(
    const evaluate::ActualArgument &, parser::ContextualMessages &);
 
// Check constraints on actual arguments for procedures with implicit
// interfaces.
void CheckImplicitInterfaceArg(evaluate::ActualArgument &,
    parser::ContextualMessages &, SemanticsContext &);
 
// Argument treatingExternalAsImplicit should be true when the called procedure
// does not actually have an explicit interface at the call site, but
// its characteristics are known because it is a subroutine or function
// defined at the top level in the same source file.  Returns false if
// messages were created, true if all is well.
bool CheckArguments(const evaluate::characteristics::Procedure &,
    evaluate::ActualArguments &, SemanticsContext &, const Scope &,
    bool treatingExternalAsImplicit, bool ignoreImplicitVsExplicit,
    const evaluate::SpecificIntrinsic *intrinsic);
 
bool CheckPPCIntrinsic(const Symbol &generic, const Symbol &specific,
    const evaluate::ActualArguments &actuals,
    evaluate::FoldingContext &context);
bool CheckWindowsIntrinsic(
    const Symbol &intrinsic, evaluate::FoldingContext &context);
bool CheckArgumentIsConstantExprInRange(
    const evaluate::ActualArguments &actuals, int index, int lowerBound,
    int upperBound, parser::ContextualMessages &messages);
 
parser::Messages CheckExplicitInterface(
    const evaluate::characteristics::Procedure &, evaluate::ActualArguments &,
    SemanticsContext &, const Scope *, const evaluate::SpecificIntrinsic *,
    bool allowActualArgumentConversions, bool extentErrors,
    bool ignoreImplicitVsExplicit);
 
// Checks actual arguments for the purpose of resolving a generic interface.
bool CheckInterfaceForGeneric(const evaluate::characteristics::Procedure &,
    evaluate::ActualArguments &, SemanticsContext &,
    bool allowActualArgumentConversions = false);
} // namespace Fortran::semantics
#endif