source: src/ResolvExpr/ResolvMode.h@ 09ab71a

//
// Cforall Version 1.0.0 Copyright (C) 2015 University of Waterloo
//
// The contents of this file are covered under the licence agreement in the
// file "LICENCE" distributed with Cforall.
//
// ResolvMode.h --
//
// Author           : Aaron B. Moss
// Created On       : Mon Jun 11 13:28:00 2018
// Last Modified By : Aaron B. Moss
// Last Modified On : Fri Oct 05 13:46:00 2018
// Update Count     : 2
//

#pragma once

namespace ResolvExpr {
        /// Flag set for resolution
        struct ResolvMode {
                const bool adjust;                       ///< Adjust array and function types to pointer types? [false]
                const bool prune;            ///< Prune alternatives to min-cost per return type? [true]
                const bool failFast;         ///< Fail on no resulting alternatives? [true]
                const bool resolveAssns;     ///< Resolve assertions? [false]

        private:
                constexpr ResolvMode(bool a, bool p, bool ff, bool ra) 
                : adjust(a), prune(p), failFast(ff), resolveAssns(ra) {}

        public:
                /// Default settings
                constexpr ResolvMode() : adjust(false), prune(true), failFast(true), resolveAssns(false) {}
                
                /// With adjust flag set; turns array and function types into equivalent pointers
                static constexpr ResolvMode withAdjustment() { return { true, true, true, false }; }

                /// With adjust flag set but prune unset; pruning ensures there is at least one alternative 
                /// per result type
                static constexpr ResolvMode withoutPrune() { return { true, false, true, false }; }

                /// With adjust and prune flags set but failFast unset; failFast ensures there is at least 
                /// one resulting alternative
                static constexpr ResolvMode withoutFailFast() { return { true, true, false, false }; }

                /// The same mode, but with resolveAssns turned on; for top-level calls
                ResolvMode atTopLevel() const { return { adjust, prune, failFast, true }; }
        };
} // namespace ResolvExpr

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