//
// 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.
//
// Decl.hpp --
//
// Author           : Aaron B. Moss
// Created On       : Thu May 9 10:00:00 2019
// Last Modified By : Aaron B. Moss
// Last Modified On : Thu May 9 10:00:00 2019
// Update Count     : 1
//

#pragma once

#include <string>
#include <vector>

#include "Fwd.hpp"             // for UniqueId
#include "LinkageSpec.hpp"
#include "Node.hpp"            // for ptr, readonly
#include "ParseNode.hpp"
#include "StorageClasses.hpp"
#include "Visitor.hpp"

namespace ast {
class Attribute;
class Expr;

/// Base declaration class
class Decl : public ParseNode {
public:
	std::string name;
	Storage::Classes storage;
	Linkage::Spec linkage;
	UniqueId uniqueId = 0;
	bool extension = false;

	Decl( const CodeLocation& loc, const std::string& name, Storage::Classes storage, 
		Linkage::Spec linkage )
	: ParseNode( loc ), name( name ), storage( storage ), linkage( linkage ) {}

	Decl* set_extension( bool ex ) { extension = ex; return this; }

	/// Ensures this node has a unique ID
	void fixUniqueId();
	/// Get canonical declaration for unique ID
	static readonly<Decl> fromId( UniqueId id );

	virtual Decl* accept( Visitor& v ) override = 0;
private:
	virtual Decl* clone() const override = 0;
};

/// Typed declaration base class
class DeclWithType : public Decl {
public:
	/// Represents the type with all types and typedefs expanded.
	/// This field is generated by SymTab::Validate::Pass2
	std::string mangleName;
	/// Stores the scope level at which the variable was declared. 
	/// Used to access shadowed identifiers.
	int scopeLevel = 0;

	std::vector<ptr<Attribute>> attributes;
	Function::Specs funcSpecs;
	ptr<Expr> asmName;
	bool isDeleted = false;

	DeclWithType( const CodeLocation& loc, const std::string& name, Storage::Classes storage, 
		Linkage::Spec linkage, std::vector<ptr<Attribute>>&& attrs, Function::Specs fs )
	: Decl( loc, name, storage, linkage ), mangleName(), attributes( std::move(attrs) ), 
		funcSpecs(fs), asmName() {}
};

}

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