BareEntryID Class Reference

#include "lib/idi/entry-id.hpp"

Description

type erased baseclass for building a combined hash and symbolic ID.

Definition at line 142 of file entry-id.hpp.

Public Member Functions
LuidH const &	getHash () const
string const &	getSym () const
bool	isValid () const
	operator string () const
template<typename TAR >
EntryID< TAR > const &	recast () const
	try to upcast this BareEntryID to a fully typed EntryID. More...

Classes
struct	UseEmbeddedHash
	using BareEntryID derived objects as keys within std::unordered_map More...

Protected Member Functions
	BareEntryID (string const &symbolID, HashVal seed)
	Not to be created stand-alone. More...
	BareEntryID (string const &symbolID)
	store the symbol but use a random hash part

Private Attributes
LuidH	hash_
string	symbol_

Constructor & Destructor Documentation

BareEntryID()

BareEntryID ( string const &  symbolID, HashVal  seed  )

inlineprotected

Not to be created stand-alone.

derived classes feed down the specific type information encoded into a hash seed. Thus even the same symbolicID generates differing hash-IDs for different type parameters

Definition at line 156 of file entry-id.hpp.

Member Function Documentation

recast()

EntryID< TAR > const & recast

(

)

const

try to upcast this BareEntryID to a fully typed EntryID.

Effectively, this is the attempt to reverse a type erasure; thus the caller needs to know the type information (as provided by the template parameter), because this information can't be recovered from the stored data.

Exceptions

error::Logic

if the given type parameter isn't exactly the same as was used on creation of the original EntryID, prior to type erasing it into a BareEntryID. Implemented by re-calculating the hash from typeinfo + symbolicID; Exception if it doesn't match the stored hash.

Definition at line 331 of file entry-id.hpp.

Referenced by EntryID_test::checkErasure().

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The documentation for this class was generated from the following file:

• entry-id.hpp