Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 268 insertions, 0 deletions

diff --git a/js/src/builtin/intl/RelativeTimeFormat.js b/js/src/builtin/intl/RelativeTimeFormat.js
new file mode 100644
index 0000000000..b62400b622
--- /dev/null
+++ b/js/src/builtin/intl/RelativeTimeFormat.js
@@ -0,0 +1,268 @@
+/* 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/. */
+
+/**
+ * RelativeTimeFormat internal properties.
+ *
+ * Spec: ECMAScript 402 API, RelativeTimeFormat, 1.3.3.
+ */
+var relativeTimeFormatInternalProperties = {
+    localeData: relativeTimeFormatLocaleData,
+    relevantExtensionKeys: ["nu"],
+};
+
+function relativeTimeFormatLocaleData() {
+    return {
+        nu: getNumberingSystems,
+        default: {
+            nu: intl_numberingSystem,
+        },
+    };
+}
+
+/**
+ * Compute an internal properties object from |lazyRelativeTimeFormatData|.
+ */
+function resolveRelativeTimeFormatInternals(lazyRelativeTimeFormatData) {
+    assert(IsObject(lazyRelativeTimeFormatData), "lazy data not an object?");
+
+    var internalProps = std_Object_create(null);
+
+    var RelativeTimeFormat = relativeTimeFormatInternalProperties;
+
+    // Steps 10-11.
+    const r = ResolveLocale("RelativeTimeFormat",
+                            lazyRelativeTimeFormatData.requestedLocales,
+                            lazyRelativeTimeFormatData.opt,
+                            RelativeTimeFormat.relevantExtensionKeys,
+                            RelativeTimeFormat.localeData);
+
+    // Steps 12-13.
+    internalProps.locale = r.locale;
+
+    // Step 14.
+    internalProps.numberingSystem = r.nu;
+
+    // Step 15 (Not relevant in our implementation).
+
+    // Step 17.
+    internalProps.style = lazyRelativeTimeFormatData.style;
+
+    // Step 19.
+    internalProps.numeric = lazyRelativeTimeFormatData.numeric;
+
+    // Steps 20-24 (Not relevant in our implementation).
+
+    return internalProps;
+}
+
+/**
+ * Returns an object containing the RelativeTimeFormat internal properties of |obj|.
+ */
+function getRelativeTimeFormatInternals(obj) {
+    assert(IsObject(obj), "getRelativeTimeFormatInternals called with non-object");
+    assert(GuardToRelativeTimeFormat(obj) !== null, "getRelativeTimeFormatInternals called with non-RelativeTimeFormat");
+
+    var internals = getIntlObjectInternals(obj);
+    assert(internals.type === "RelativeTimeFormat", "bad type escaped getIntlObjectInternals");
+
+    var internalProps = maybeInternalProperties(internals);
+    if (internalProps)
+        return internalProps;
+
+    internalProps = resolveRelativeTimeFormatInternals(internals.lazyData);
+    setInternalProperties(internals, internalProps);
+    return internalProps;
+}
+
+/**
+ * Initializes an object as a RelativeTimeFormat.
+ *
+ * This method is complicated a moderate bit by its implementing initialization
+ * as a *lazy* concept.  Everything that must happen now, does -- but we defer
+ * all the work we can until the object is actually used as a RelativeTimeFormat.
+ * This later work occurs in |resolveRelativeTimeFormatInternals|; steps not noted
+ * here occur there.
+ *
+ * Spec: ECMAScript 402 API, RelativeTimeFormat, 1.1.1.
+ */
+function InitializeRelativeTimeFormat(relativeTimeFormat, locales, options) {
+    assert(IsObject(relativeTimeFormat),
+           "InitializeRelativeimeFormat called with non-object");
+    assert(GuardToRelativeTimeFormat(relativeTimeFormat) !== null,
+           "InitializeRelativeTimeFormat called with non-RelativeTimeFormat");
+
+    // Lazy RelativeTimeFormat data has the following structure:
+    //
+    //   {
+    //     requestedLocales: List of locales,
+    //     style: "long" / "short" / "narrow",
+    //     numeric: "always" / "auto",
+    //
+    //     opt: // opt object computed in InitializeRelativeTimeFormat
+    //       {
+    //         localeMatcher: "lookup" / "best fit",
+    //       }
+    //   }
+    //
+    // Note that lazy data is only installed as a final step of initialization,
+    // so every RelativeTimeFormat lazy data object has *all* these properties, never a
+    // subset of them.
+    const lazyRelativeTimeFormatData = std_Object_create(null);
+
+    // Step 1.
+    let requestedLocales = CanonicalizeLocaleList(locales);
+    lazyRelativeTimeFormatData.requestedLocales = requestedLocales;
+
+    // Steps 2-3.
+    if (options === undefined)
+        options = std_Object_create(null);
+    else
+        options = ToObject(options);
+
+    // Step 4.
+    let opt = new Record();
+
+    // Steps 5-6.
+    let matcher = GetOption(options, "localeMatcher", "string", ["lookup", "best fit"], "best fit");
+    opt.localeMatcher = matcher;
+
+    // Steps 7-9.
+    let numberingSystem = GetOption(options, "numberingSystem", "string", undefined, undefined);
+    if (numberingSystem !== undefined) {
+        numberingSystem = intl_ValidateAndCanonicalizeUnicodeExtensionType(numberingSystem,
+                                                                           "numberingSystem",
+                                                                           "nu");
+    }
+    opt.nu = numberingSystem;
+
+    lazyRelativeTimeFormatData.opt = opt;
+
+    // Steps 16-17.
+    const style = GetOption(options, "style", "string", ["long", "short", "narrow"], "long");
+    lazyRelativeTimeFormatData.style = style;
+
+    // Steps 18-19.
+    const numeric = GetOption(options, "numeric", "string", ["always", "auto"], "always");
+    lazyRelativeTimeFormatData.numeric = numeric;
+
+    initializeIntlObject(relativeTimeFormat, "RelativeTimeFormat", lazyRelativeTimeFormatData);
+}
+
+/**
+ * Returns the subset of the given locale list for which this locale list has a
+ * matching (possibly fallback) locale. Locales appear in the same order in the
+ * returned list as in the input list.
+ *
+ * Spec: ECMAScript 402 API, RelativeTimeFormat, 1.3.2.
+ */
+function Intl_RelativeTimeFormat_supportedLocalesOf(locales /*, options*/) {
+    var options = arguments.length > 1 ? arguments[1] : undefined;
+
+    // Step 1.
+    var availableLocales = "RelativeTimeFormat";
+
+    // Step 2.
+    let requestedLocales = CanonicalizeLocaleList(locales);
+
+    // Step 3.
+    return SupportedLocales(availableLocales, requestedLocales, options);
+}
+
+/**
+ * Returns a String value representing the written form of a relative date
+ * formatted according to the effective locale and the formatting options
+ * of this RelativeTimeFormat object.
+ *
+ * Spec: ECMAScript 402 API, RelativeTImeFormat, 1.4.3.
+ */
+function Intl_RelativeTimeFormat_format(value, unit) {
+    // Step 1.
+    let relativeTimeFormat = this;
+
+    // Step 2.
+    if (!IsObject(relativeTimeFormat) ||
+        (relativeTimeFormat = GuardToRelativeTimeFormat(relativeTimeFormat)) === null)
+    {
+        return callFunction(CallRelativeTimeFormatMethodIfWrapped, this, value, unit,
+                            "Intl_RelativeTimeFormat_format");
+    }
+
+    // Step 3.
+    let t = ToNumber(value);
+
+    // Step 4.
+    let u = ToString(unit);
+
+    // Ensure the RelativeTimeFormat internals are resolved.
+    var internals = getRelativeTimeFormatInternals(relativeTimeFormat);
+
+    // Step 5.
+    return intl_FormatRelativeTime(relativeTimeFormat, t, u, internals.numeric,
+                                   false);
+}
+
+/**
+ * Returns an Array composed of the components of a relative date formatted
+ * according to the effective locale and the formatting options of this
+ * RelativeTimeFormat object.
+ *
+ * Spec: ECMAScript 402 API, RelativeTImeFormat, 1.4.4.
+ */
+function Intl_RelativeTimeFormat_formatToParts(value, unit) {
+    // Step 1.
+    let relativeTimeFormat = this;
+
+    // Step 2.
+    if (!IsObject(relativeTimeFormat) ||
+        (relativeTimeFormat = GuardToRelativeTimeFormat(relativeTimeFormat)) === null)
+    {
+        return callFunction(CallRelativeTimeFormatMethodIfWrapped, this, value, unit,
+                            "Intl_RelativeTimeFormat_formatToParts");
+    }
+
+    // Step 3.
+    let t = ToNumber(value);
+
+    // Step 4.
+    let u = ToString(unit);
+
+    // Ensure the RelativeTimeFormat internals are resolved.
+    var internals = getRelativeTimeFormatInternals(relativeTimeFormat);
+
+    // Step 5.
+    return intl_FormatRelativeTime(relativeTimeFormat, t, u, internals.numeric,
+                                   true);
+}
+
+/**
+ * Returns the resolved options for a RelativeTimeFormat object.
+ *
+ * Spec: ECMAScript 402 API, RelativeTimeFormat, 1.4.5.
+ */
+function Intl_RelativeTimeFormat_resolvedOptions() {
+    // Step 1.
+    var relativeTimeFormat = this;
+
+    // Steps 2-3.
+    if (!IsObject(relativeTimeFormat) ||
+        (relativeTimeFormat = GuardToRelativeTimeFormat(relativeTimeFormat)) === null)
+    {
+        return callFunction(CallRelativeTimeFormatMethodIfWrapped, this,
+                            "Intl_RelativeTimeFormat_resolvedOptions");
+    }
+
+    var internals = getRelativeTimeFormatInternals(relativeTimeFormat);
+
+    // Steps 4-5.
+    var result = {
+        locale: internals.locale,
+        style: internals.style,
+        numeric: internals.numeric,
+        numberingSystem: internals.numberingSystem,
+    };
+
+    // Step 6.
+    return result;
+}