//
// 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

// Local Variables: //
// tab-width: 4 //
// mode: c++ //
// compile-command: "make install" //
// End: //