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// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
*******************************************************************************
* Copyright (C) 2013-2014, International Business Machines
* Corporation and others. All Rights Reserved.
*******************************************************************************
* collationtailoring.h
*
* created on: 2013mar12
* created by: Markus W. Scherer
*/
#ifndef __COLLATIONTAILORING_H__
#define __COLLATIONTAILORING_H__
#include "unicode/utypes.h"
#if !UCONFIG_NO_COLLATION
#include "unicode/locid.h"
#include "unicode/unistr.h"
#include "unicode/uversion.h"
#include "collationsettings.h"
#include "uhash.h"
#include "umutex.h"
#include "unifiedcache.h"
struct UDataMemory;
struct UResourceBundle;
struct UTrie2;
U_NAMESPACE_BEGIN
struct CollationData;
class UnicodeSet;
/**
* Collation tailoring data & settings.
* This is a container of values for a collation tailoring
* built from rules or deserialized from binary data.
*
* It is logically immutable: Do not modify its values.
* The fields are public for convenience.
*
* It is shared, reference-counted, and auto-deleted; see SharedObject.
*/
struct U_I18N_API CollationTailoring : public SharedObject {
CollationTailoring(const CollationSettings *baseSettings);
virtual ~CollationTailoring();
/**
* Returns true if the constructor could not initialize properly.
*/
UBool isBogus() { return settings == nullptr; }
UBool ensureOwnedData(UErrorCode &errorCode);
static void makeBaseVersion(const UVersionInfo ucaVersion, UVersionInfo version);
void setVersion(const UVersionInfo baseVersion, const UVersionInfo rulesVersion);
int32_t getUCAVersion() const;
// data for sorting etc.
const CollationData *data; // == base data or ownedData
const CollationSettings *settings; // reference-counted
UnicodeString rules;
// The locale is bogus when built from rules or constructed from a binary blob.
// It can then be set by the service registration code which is thread-safe.
mutable Locale actualLocale;
// UCA version u.v.w & rules version r.s.t.q:
// version[0]: builder version (runtime version is mixed in at runtime)
// version[1]: bits 7..3=u, bits 2..0=v
// version[2]: bits 7..6=w, bits 5..0=r
// version[3]= (s<<5)+(s>>3)+t+(q<<4)+(q>>4)
UVersionInfo version;
// owned objects
CollationData *ownedData;
UObject *builder;
UDataMemory *memory;
UResourceBundle *bundle;
UTrie2 *trie;
UnicodeSet *unsafeBackwardSet;
mutable UHashtable *maxExpansions;
mutable UInitOnce maxExpansionsInitOnce;
private:
/**
* No copy constructor: A CollationTailoring cannot be copied.
* It is immutable, and the data trie cannot be copied either.
*/
CollationTailoring(const CollationTailoring &other) = delete;
};
struct U_I18N_API CollationCacheEntry : public SharedObject {
CollationCacheEntry(const Locale &loc, const CollationTailoring *t)
: validLocale(loc), tailoring(t) {
if(t != nullptr) {
t->addRef();
}
}
~CollationCacheEntry();
Locale validLocale;
const CollationTailoring *tailoring;
};
template<> U_I18N_API
const CollationCacheEntry *
LocaleCacheKey<CollationCacheEntry>::createObject(const void *creationContext,
UErrorCode &errorCode) const;
U_NAMESPACE_END
#endif // !UCONFIG_NO_COLLATION
#endif // __COLLATIONTAILORING_H__
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