Add m-esr52 at 52.6.0

1 files changed, 235 insertions, 0 deletions

diff --git a/js/src/tests/ecma_6/shell.js b/js/src/tests/ecma_6/shell.js
new file mode 100644
index 000000000..06be6f2db
--- /dev/null
+++ b/js/src/tests/ecma_6/shell.js
@@ -0,0 +1,235 @@
+/* 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/. */
+
+(function(global) {
+  /** Yield every permutation of the elements in some array. */
+  global.Permutations = function* Permutations(items) {
+      if (items.length == 0) {
+          yield [];
+      } else {
+          items = items.slice(0);
+          for (let i = 0; i < items.length; i++) {
+              let swap = items[0];
+              items[0] = items[i];
+              items[i] = swap;
+              for (let e of Permutations(items.slice(1, items.length)))
+                  yield [items[0]].concat(e);
+          }
+      }
+  };
+})(this);
+
+if (typeof assertThrowsInstanceOf === 'undefined') {
+    var assertThrowsInstanceOf = function assertThrowsInstanceOf(f, ctor, msg) {
+        var fullmsg;
+        try {
+            f();
+        } catch (exc) {
+            if (exc instanceof ctor)
+                return;
+            fullmsg = "Assertion failed: expected exception " + ctor.name + ", got " + exc;
+        }
+        if (fullmsg === undefined)
+            fullmsg = "Assertion failed: expected exception " + ctor.name + ", no exception thrown";
+        if (msg !== undefined)
+            fullmsg += " - " + msg;
+        throw new Error(fullmsg);
+    };
+}
+
+if (typeof assertThrowsValue === 'undefined') {
+    var assertThrowsValue = function assertThrowsValue(f, val, msg) {
+        var fullmsg;
+        try {
+            f();
+        } catch (exc) {
+            if ((exc === val) === (val === val) && (val !== 0 || 1 / exc === 1 / val))
+                return;
+            fullmsg = "Assertion failed: expected exception " + val + ", got " + exc;
+        }
+        if (fullmsg === undefined)
+            fullmsg = "Assertion failed: expected exception " + val + ", no exception thrown";
+        if (msg !== undefined)
+            fullmsg += " - " + msg;
+        throw new Error(fullmsg);
+    };
+}
+
+if (typeof assertDeepEq === 'undefined') {
+    var assertDeepEq = (function(){
+        var call = Function.prototype.call,
+            Array_isArray = Array.isArray,
+            Map_ = Map,
+            Error_ = Error,
+            Symbol_ = Symbol,
+            Map_has = call.bind(Map.prototype.has),
+            Map_get = call.bind(Map.prototype.get),
+            Map_set = call.bind(Map.prototype.set),
+            Object_toString = call.bind(Object.prototype.toString),
+            Function_toString = call.bind(Function.prototype.toString),
+            Object_getPrototypeOf = Object.getPrototypeOf,
+            Object_hasOwnProperty = call.bind(Object.prototype.hasOwnProperty),
+            Object_getOwnPropertyDescriptor = Object.getOwnPropertyDescriptor,
+            Object_isExtensible = Object.isExtensible,
+            Object_getOwnPropertyNames = Object.getOwnPropertyNames,
+            uneval_ = uneval;
+
+        // Return true iff ES6 Type(v) isn't Object.
+        // Note that `typeof document.all === "undefined"`.
+        function isPrimitive(v) {
+            return (v === null ||
+                    v === undefined ||
+                    typeof v === "boolean" ||
+                    typeof v === "number" ||
+                    typeof v === "string" ||
+                    typeof v === "symbol");
+        }
+
+        function assertSameValue(a, b, msg) {
+            try {
+                assertEq(a, b);
+            } catch (exc) {
+                throw Error_(exc.message + (msg ? " " + msg : ""));
+            }
+        }
+
+        function assertSameClass(a, b, msg) {
+            var ac = Object_toString(a), bc = Object_toString(b);
+            assertSameValue(ac, bc, msg);
+            switch (ac) {
+            case "[object Function]":
+                if (typeof isProxy !== "undefined" && !isProxy(a) && !isProxy(b))
+                    assertSameValue(Function_toString(a), Function_toString(b), msg);
+            }
+        }
+
+        function at(prevmsg, segment) {
+            return prevmsg ? prevmsg + segment : "at _" + segment;
+        }
+
+        // Assert that the arguments a and b are thoroughly structurally equivalent.
+        //
+        // For the sake of speed, we cut a corner:
+        //        var x = {}, y = {}, ax = [x];
+        //        assertDeepEq([ax, x], [ax, y]);  // passes (?!)
+        //
+        // Technically this should fail, since the two object graphs are different.
+        // (The graph of [ax, y] contains one more object than the graph of [ax, x].)
+        //
+        // To get technically correct behavior, pass {strictEquivalence: true}.
+        // This is slower because we have to walk the entire graph, and Object.prototype
+        // is big.
+        //
+        return function assertDeepEq(a, b, options) {
+            var strictEquivalence = options ? options.strictEquivalence : false;
+
+            function assertSameProto(a, b, msg) {
+                check(Object_getPrototypeOf(a), Object_getPrototypeOf(b), at(msg, ".__proto__"));
+            }
+
+            function failPropList(na, nb, msg) {
+                throw Error_("got own properties " + uneval_(na) + ", expected " + uneval_(nb) +
+                             (msg ? " " + msg : ""));
+            }
+
+            function assertSameProps(a, b, msg) {
+                var na = Object_getOwnPropertyNames(a),
+                    nb = Object_getOwnPropertyNames(b);
+                if (na.length !== nb.length)
+                    failPropList(na, nb, msg);
+
+                // Ignore differences in whether Array elements are stored densely.
+                if (Array_isArray(a)) {
+                    na.sort();
+                    nb.sort();
+                }
+
+                for (var i = 0; i < na.length; i++) {
+                    var name = na[i];
+                    if (name !== nb[i])
+                        failPropList(na, nb, msg);
+                    var da = Object_getOwnPropertyDescriptor(a, name),
+                        db = Object_getOwnPropertyDescriptor(b, name);
+                    var pmsg = at(msg, /^[_$A-Za-z0-9]+$/.test(name)
+                                       ? /0|[1-9][0-9]*/.test(name) ? "[" + name + "]" : "." + name
+                                       : "[" + uneval_(name) + "]");
+                    assertSameValue(da.configurable, db.configurable, at(pmsg, ".[[Configurable]]"));
+                    assertSameValue(da.enumerable, db.enumerable, at(pmsg, ".[[Enumerable]]"));
+                    if (Object_hasOwnProperty(da, "value")) {
+                        if (!Object_hasOwnProperty(db, "value"))
+                            throw Error_("got data property, expected accessor property" + pmsg);
+                        check(da.value, db.value, pmsg);
+                    } else {
+                        if (Object_hasOwnProperty(db, "value"))
+                            throw Error_("got accessor property, expected data property" + pmsg);
+                        check(da.get, db.get, at(pmsg, ".[[Get]]"));
+                        check(da.set, db.set, at(pmsg, ".[[Set]]"));
+                    }
+                }
+            };
+
+            var ab = new Map_();
+            var bpath = new Map_();
+
+            function check(a, b, path) {
+                if (typeof a === "symbol") {
+                    // Symbols are primitives, but they have identity.
+                    // Symbol("x") !== Symbol("x") but
+                    // assertDeepEq(Symbol("x"), Symbol("x")) should pass.
+                    if (typeof b !== "symbol") {
+                        throw Error_("got " + uneval_(a) + ", expected " + uneval_(b) + " " + path);
+                    } else if (uneval_(a) !== uneval_(b)) {
+                        // We lamely use uneval_ to distinguish well-known symbols
+                        // from user-created symbols. The standard doesn't offer
+                        // a convenient way to do it.
+                        throw Error_("got " + uneval_(a) + ", expected " + uneval_(b) + " " + path);
+                    } else if (Map_has(ab, a)) {
+                        assertSameValue(Map_get(ab, a), b, path);
+                    } else if (Map_has(bpath, b)) {
+                        var bPrevPath = Map_get(bpath, b) || "_";
+                        throw Error_("got distinct symbols " + at(path, "") + " and " +
+                                     at(bPrevPath, "") + ", expected the same symbol both places");
+                    } else {
+                        Map_set(ab, a, b);
+                        Map_set(bpath, b, path);
+                    }
+                } else if (isPrimitive(a)) {
+                    assertSameValue(a, b, path);
+                } else if (isPrimitive(b)) {
+                    throw Error_("got " + Object_toString(a) + ", expected " + uneval_(b) + " " + path);
+                } else if (Map_has(ab, a)) {
+                    assertSameValue(Map_get(ab, a), b, path);
+                } else if (Map_has(bpath, b)) {
+                    var bPrevPath = Map_get(bpath, b) || "_";
+                    throw Error_("got distinct objects " + at(path, "") + " and " + at(bPrevPath, "") +
+                                 ", expected the same object both places");
+                } else {
+                    Map_set(ab, a, b);
+                    Map_set(bpath, b, path);
+                    if (a !== b || strictEquivalence) {
+                        assertSameClass(a, b, path);
+                        assertSameProto(a, b, path);
+                        assertSameProps(a, b, path);
+                        assertSameValue(Object_isExtensible(a),
+                                        Object_isExtensible(b),
+                                        at(path, ".[[Extensible]]"));
+                    }
+                }
+            }
+
+            check(a, b, "");
+        };
+    })();
+}
+
+if (typeof assertWarning === 'undefined') {
+    function assertWarning(func, name) {
+        enableLastWarning();
+        func();
+        var warning = getLastWarning();
+        assertEq(warning !== null, true);
+        assertEq(warning.name, name);
+        disableLastWarning();
+    }
+}