Issue #2046 - Move Intl.DateTimeFormat functionality into builtin/intl/DateTimeFormat.*

2026-09-09 09:18:42 +09:00 · 2023-02-16 00:14:14 +01:00 · 2023-02-16 00:14:14 +01:00 · c981fb13ea
commit c981fb13ea
parent ce98604d2e
6 changed files with 965 additions and 880 deletions
--- a/js/src/builtin/intl/DateTimeFormat.h
+++ b/js/src/builtin/intl/DateTimeFormat.h
@ -0,0 +1,143 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
+ * vim: set ts=8 sts=4 et sw=4 tw=99:
+ * 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_DateTimeFormat_h
+#define builtin_intl_DateTimeFormat_h
+
+#include "mozilla/Attributes.h"
+
+#include "builtin/intl/CommonFunctions.h"
+#include "builtin/SelfHostingDefines.h"
+#include "js/Class.h"
+#include "js/RootingAPI.h"
+#include "vm/NativeObject.h"
+
+namespace js {
+
+class FreeOp;
+class GlobalObject;
+
+/******************** DateTimeFormat ********************/
+
+class DateTimeFormatObject : public NativeObject
+{
+  public:
+    static const Class class_;
+
+    static constexpr uint32_t INTERNALS_SLOT = 0;
+    static constexpr uint32_t UDATE_FORMAT_SLOT = 1;
+    static constexpr uint32_t SLOT_COUNT = 2;
+
+    static_assert(INTERNALS_SLOT == INTL_INTERNALS_OBJECT_SLOT,
+                  "INTERNALS_SLOT must match self-hosting define for internals object slot");
+  private:
+    static const ClassOps classOps_;
+
+    static void finalize(FreeOp* fop, JSObject* obj);
+};
+
+extern JSObject*
+
+CreateDateTimeFormatPrototype(JSContext* cx, JS::Handle<JSObject*> Intl,
+                              JS::Handle<GlobalObject*> global);
+
+/**
+ * Returns a new instance of the standard built-in DateTimeFormat constructor.
+ * Self-hosted code cannot cache this constructor (as it does for others in
+ * Utilities.js) because it is initialized after self-hosted code is compiled.
+ *
+ * Usage: dateTimeFormat = intl_DateTimeFormat(locales, options)
+ */
+extern MOZ_MUST_USE bool
+intl_DateTimeFormat(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * Returns an object indicating the supported locales for date and time
+ * formatting by having a true-valued property for each such locale with the
+ * canonicalized language tag as the property name. The object has no
+ * prototype.
+ *
+ * Usage: availableLocales = intl_DateTimeFormat_availableLocales()
+ */
+extern MOZ_MUST_USE bool
+intl_DateTimeFormat_availableLocales(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * Returns an array with the calendar type identifiers per Unicode
+ * Technical Standard 35, Unicode Locale Data Markup Language, for the
+ * supported calendars for the given locale. The default calendar is
+ * element 0.
+ *
+ * Usage: calendars = intl_availableCalendars(locale)
+ */
+extern MOZ_MUST_USE bool
+intl_availableCalendars(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * 6.4.1 IsValidTimeZoneName ( timeZone )
+ *
+ * Verifies that the given string is a valid time zone name. If it is a valid
+ * time zone name, its IANA time zone name is returned. Otherwise returns null.
+ *
+ * ES2017 Intl draft rev 4a23f407336d382ed5e3471200c690c9b020b5f3
+ *
+ * Usage: ianaTimeZone = intl_IsValidTimeZoneName(timeZone)
+ */
+extern MOZ_MUST_USE bool
+intl_IsValidTimeZoneName(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * Return the canonicalized time zone name. Canonicalization resolves link
+ * names to their target time zones.
+ *
+ * Usage: ianaTimeZone = intl_canonicalizeTimeZone(timeZone)
+ */
+extern MOZ_MUST_USE bool
+intl_canonicalizeTimeZone(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * Return the default time zone name. The time zone name is not canonicalized.
+ *
+ * Usage: icuDefaultTimeZone = intl_defaultTimeZone()
+ */
+extern MOZ_MUST_USE bool
+intl_defaultTimeZone(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * Return the raw offset from GMT in milliseconds for the default time zone.
+ *
+ * Usage: defaultTimeZoneOffset = intl_defaultTimeZoneOffset()
+ */
+extern MOZ_MUST_USE bool
+intl_defaultTimeZoneOffset(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * Return a pattern in the date-time format pattern language of Unicode
+ * Technical Standard 35, Unicode Locale Data Markup Language, for the
+ * best-fit date-time format pattern corresponding to skeleton for the
+ * given locale.
+ *
+ * Usage: pattern = intl_patternForSkeleton(locale, skeleton)
+ */
+extern MOZ_MUST_USE bool
+intl_patternForSkeleton(JSContext* cx, unsigned argc, Value* vp);
+
+/**
+ * Returns a String value representing x (which must be a Number value)
+ * according to the effective locale and the formatting options of the
+ * given DateTimeFormat.
+ *
+ * Spec: ECMAScript Internationalization API Specification, 12.3.2.
+ *
+ * Usage: formatted = intl_FormatDateTime(dateTimeFormat, x)
+ */
+extern MOZ_MUST_USE bool
+intl_FormatDateTime(JSContext* cx, unsigned argc, Value* vp);
+
+
+} // namespace js
+
+#endif /* builtin_intl_DateTimeFormat_h */