chromium/third_party/icu/source/i18n/number_patternmodifier.h

// © 2017 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html

#include "unicode/utypes.h"

#if !UCONFIG_NO_FORMATTING
#ifndef __NUMBER_PATTERNMODIFIER_H__
#define __NUMBER_PATTERNMODIFIER_H__

#include "standardplural.h"
#include "unicode/numberformatter.h"
#include "number_patternstring.h"
#include "number_types.h"
#include "number_modifiers.h"
#include "number_utils.h"
#include "number_currencysymbols.h"

U_NAMESPACE_BEGIN

// Export an explicit template instantiation of the LocalPointer that is used as a
// data member of AdoptingModifierStore.
// (When building DLLs for Windows this is required.)
#if U_PF_WINDOWS <= U_PLATFORM && U_PLATFORM <= U_PF_CYGWIN
#if defined(_MSC_VER)
// Ignore warning 4661 as LocalPointerBase does not use operator== or operator!=
#pragma warning(push)
#pragma warning(disable : 4661)
#endif
template class U_I18N_API LocalPointerBase<number::impl::AdoptingModifierStore>;
template class U_I18N_API LocalPointer<number::impl::AdoptingModifierStore>;
#if defined(_MSC_VER)
#pragma warning(pop)
#endif
#endif

namespace number {
namespace impl {

// Forward declaration
class MutablePatternModifier;

// Exported as U_I18N_API because it is needed for the unit test PatternModifierTest
class U_I18N_API ImmutablePatternModifier : public MicroPropsGenerator, public UMemory { … };

/**
 * This class is a {@link Modifier} that wraps a decimal format pattern. It applies the pattern's affixes in
 * {@link Modifier#apply}.
 *
 * <p>
 * In addition to being a Modifier, this class contains the business logic for substituting the correct locale symbols
 * into the affixes of the decimal format pattern.
 *
 * <p>
 * In order to use this class, create a new instance and call the following four setters: {@link #setPatternInfo},
 * {@link #setPatternAttributes}, {@link #setSymbols}, and {@link #setNumberProperties}. After calling these four
 * setters, the instance will be ready for use as a Modifier.
 *
 * <p>
 * This is a MUTABLE, NON-THREAD-SAFE class designed for performance. Do NOT save references to this or attempt to use
 * it from multiple threads! Instead, you can obtain a safe, immutable decimal format pattern modifier by calling
 * {@link MutablePatternModifier#createImmutable}, in effect treating this instance as a builder for the immutable
 * variant.
 */
class U_I18N_API MutablePatternModifier
        : public MicroPropsGenerator,
          public Modifier,
          public SymbolProvider,
          public UMemory { … };


}  // namespace impl
}  // namespace number
U_NAMESPACE_END

#endif //__NUMBER_PATTERNMODIFIER_H__

#endif /* #if !UCONFIG_NO_FORMATTING */