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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: set ts=8 sts=2 et sw=2 tw=80:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef builtin_intl_CommonFunctions_h
#define builtin_intl_CommonFunctions_h
#include <stddef.h>
#include <stdint.h>
#include "js/RootingAPI.h"
#include "js/Utility.h"
namespace mozilla::intl {
enum class ICUError : uint8_t;
}
namespace js {
class PropertyName;
namespace intl {
/**
* Initialize a new Intl.* object using the named self-hosted function.
*/
extern bool InitializeObject(JSContext* cx, JS::Handle<JSObject*> obj,
JS::Handle<PropertyName*> initializer,
JS::Handle<JS::Value> locales,
JS::Handle<JS::Value> options);
enum class DateTimeFormatOptions {
Standard,
EnableMozExtensions,
};
/**
* Initialize an existing object as an Intl.* object using the named
* self-hosted function. This is only for a few old Intl.* constructors, for
* legacy reasons -- new ones should use the function above instead.
*/
extern bool LegacyInitializeObject(JSContext* cx, JS::Handle<JSObject*> obj,
JS::Handle<PropertyName*> initializer,
JS::Handle<JS::Value> thisValue,
JS::Handle<JS::Value> locales,
JS::Handle<JS::Value> options,
DateTimeFormatOptions dtfOptions,
JS::MutableHandle<JS::Value> result);
/**
* Returns the object holding the internal properties for obj.
*/
extern JSObject* GetInternalsObject(JSContext* cx, JS::Handle<JSObject*> obj);
/** Report an Intl internal error not directly tied to a spec step. */
extern void ReportInternalError(JSContext* cx);
/** Report an Intl internal error not directly tied to a spec step. */
extern void ReportInternalError(JSContext* cx, mozilla::intl::ICUError error);
/**
* The last-ditch locale is used if none of the available locales satisfies a
* request. "en-GB" is used based on the assumptions that English is the most
* common second language, that both en-GB and en-US are normally available in
* an implementation, and that en-GB is more representative of the English used
* in other locales.
*/
static inline const char* LastDitchLocale() { return "en-GB"; }
/**
* Certain old, commonly-used language tags that lack a script, are expected to
* nonetheless imply one. This object maps these old-style tags to modern
* equivalents.
*/
struct OldStyleLanguageTagMapping {
const char* const oldStyle;
const char* const modernStyle;
// Provide a constructor to catch missing initializers in the mappings array.
constexpr OldStyleLanguageTagMapping(const char* oldStyle,
const char* modernStyle)
: oldStyle(oldStyle), modernStyle(modernStyle) {}
};
extern const OldStyleLanguageTagMapping oldStyleLanguageTagMappings[5];
extern JS::UniqueChars EncodeLocale(JSContext* cx, JSString* locale);
// The inline capacity we use for a Vector<char16_t>. Use this to ensure that
// our uses of ICU string functions, below and elsewhere, will try to fill the
// buffer's entire inline capacity before growing it and heap-allocating.
constexpr size_t INITIAL_CHAR_BUFFER_SIZE = 32;
void AddICUCellMemory(JSObject* obj, size_t nbytes);
void RemoveICUCellMemory(JS::GCContext* gcx, JSObject* obj, size_t nbytes);
} // namespace intl
} // namespace js
#endif /* builtin_intl_CommonFunctions_h */
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