// © 2024 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
#include "unicode/utypes.h"
#ifndef MESSAGEFORMAT2_ARGUMENTS_H
#define MESSAGEFORMAT2_ARGUMENTS_H
#if U_SHOW_CPLUSPLUS_API
#if !UCONFIG_NO_NORMALIZATION
#if !UCONFIG_NO_FORMATTING
#if !UCONFIG_NO_MF2
/**
* \ file
* \ brief C + + API : Formats messages using the draft MessageFormat 2 . 0 .
*/
#include "unicode/messageformat2_data_model_names.h"
#include "unicode/messageformat2_formattable.h"
#include "unicode/unistr.h"
#ifndef U_HIDE_DEPRECATED_API
#include <map>
U_NAMESPACE_BEGIN
namespace message2 {
class MessageFormatter;
// Arguments
// ----------
/**
*
* The ` MessageArguments ` class represents the named arguments to a message .
* It is immutable and movable . It is not copyable .
*
* @ internal ICU 75 technology preview
* @ deprecated This API is for technology preview only .
*/
class U_I18N_API_CLASS MessageArguments : public UObject {
public:
/**
* Message arguments constructor , which takes a map and returns a container
* of arguments that can be passed to a ` MessageFormatter ` .
*
* @ param args A reference to a map from strings ( argument names ) to ` message2 : : Formattable `
* objects ( argument values ) . The keys and values of the map are copied into the result .
* @ param status Input / output error code .
*
* @ internal ICU 75 technology preview
* @ deprecated This API is for technology preview only .
*/
U_I18N_API MessageArguments(
const std::map<UnicodeString, Formattable>& args, UErro
rCode& status) {
if (U_FAILURE(status)) {
return ;
}
argumentNames = LocalArray<UnicodeString>(new UnicodeString[argsLen = static_cast<int32_t>(args.size())]);
arguments = LocalArray<Formattable>(new Formattable[argsLen]);
if (!argumentNames.isValid() || !arguments.isValid()) {
status = U_MEMORY_ALLOCATION_ERROR;
return ;
}
int32_t i = 0 ;
for (auto iter = args.begin(); iter != args.end(); ++iter) {
argumentNames[i] = iter->first;
arguments[i] = iter->second;
i++;
}
}
/**
* Move operator :
* The source MessageArguments will be left in a valid but undefined state .
*
* @ internal ICU 75 technology preview
* @ deprecated This API is for technology preview only .
*/
U_I18N_API MessageArguments& operator =(MessageArguments&&) noexcept;
/**
* Default constructor .
* Returns an empty arguments mapping .
*
* @ internal ICU 75 technology preview
* @ deprecated This API is for technology preview only .
*/
U_I18N_API MessageArguments() = default ;
/**
* Destructor .
*
* @ internal ICU 75 technology preview
* @ deprecated This API is for technology preview only .
*/
U_I18N_API virtual ~MessageArguments();
private :
friend class MessageContext;
const Formattable* getArgument(const data_model::VariableName&,
UErrorCode&) const ;
// Avoids using Hashtable so that code constructing a Hashtable
// doesn't have to appear in this header file
LocalArray<UnicodeString> argumentNames;
LocalArray<Formattable> arguments;
int32_t argsLen = 0 ;
}; // class MessageArguments
} // namespace message2
U_NAMESPACE_END
#endif // U_HIDE_DEPRECATED_API
#endif /* #if !UCONFIG_NO_MF2 */
#endif /* #if !UCONFIG_NO_FORMATTING */
#endif /* #if !UCONFIG_NO_NORMALIZATION */
#endif /* U_SHOW_CPLUSPLUS_API */
#endif // MESSAGEFORMAT2_ARGUMENTS_H
// eof
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