//
// 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.
//
// Tuples.hpp -- A collection of tuple operations.
//
// Author           : Rodolfo G. Esteves
// Created On       : Mon May 18 07:44:20 2015
// Last Modified By : Henry Xue
// Last Modified On : Mon Aug 23 15:36:09 2021
// Update Count     : 19
//

#pragma once

#include <string>
#include <vector>

#include "AST/Fwd.hpp"
#include "AST/Node.hpp"
namespace ResolvExpr {
	struct CandidateFinder;
}

namespace Tuples {

// TupleAssignment.cpp
void handleTupleAssignment(
	ResolvExpr::CandidateFinder & finder, const ast::UntypedExpr * assign,
	std::vector< ResolvExpr::CandidateFinder > & args );

// TupleExpansion.cpp
/// Expands z.[a, b.[x, y], c] into [z.a, z.b.x, z.b.y, z.c], inserting UniqueExprs as appropriate.
void expandMemberTuples( ast::TranslationUnit & translationUnit );

/// Replaces tuple-related elements, such as TupleType, TupleExpr, TupleAssignExpr, etc.
void expandTuples( ast::TranslationUnit & translaionUnit );

/// Replaces UniqueExprs with a temporary variable and one call.
void expandUniqueExpr( ast::TranslationUnit & translationUnit );

/// Returns VoidType if any of the expressions have Voidtype, otherwise TupleType of the Expression result types.
const ast::Type * makeTupleType( const std::vector<ast::ptr<ast::Expr>> & exprs );

/// Returns a TypeInstType if `type` is a ttype, nullptr otherwise
const ast::TypeInstType * isTtype( const ast::Type * type );

/// Returns true if the expression may contain side-effects.
bool maybeImpure( const ast::Expr * expr );

/// Returns true if the expression may contain side-effect,
/// ignoring the presence of unique expressions.
bool maybeImpureIgnoreUnique( const ast::Expr * expr );

} // namespace Tuples

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