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authorjanekptacijarabaci <janekptacijarabaci@seznam.cz>2018-03-20 12:40:00 +0100
committerjanekptacijarabaci <janekptacijarabaci@seznam.cz>2018-03-20 12:40:00 +0100
commit2a57d73c3b5304be3f9be51018a1bbee79f007e2 (patch)
tree90bd70148cd2ee939092d6e70bd618ab5df914b1 /js/src/tests/ecma_6
parentcaa2a53c402c7b509e9939e9aefe595dc0dbe516 (diff)
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Bug 1204028: Evaluate LHS reference before RHS in destructuring
Issue #73 [Depends on] Bug 1147371: Implement IteratorClose
Diffstat (limited to 'js/src/tests/ecma_6')
-rw-r--r--js/src/tests/ecma_6/Destructuring/order-super.js727
-rw-r--r--js/src/tests/ecma_6/Destructuring/order.js745
2 files changed, 1472 insertions, 0 deletions
diff --git a/js/src/tests/ecma_6/Destructuring/order-super.js b/js/src/tests/ecma_6/Destructuring/order-super.js
new file mode 100644
index 000000000..afe11e2d9
--- /dev/null
+++ b/js/src/tests/ecma_6/Destructuring/order-super.js
@@ -0,0 +1,727 @@
+var BUGNUMBER = 1204028;
+var summary = "Destructuring should evaluate lhs reference before rhs in super property";
+
+if (typeof assertEq === "undefined") {
+ assertEq = function(a, b) {
+ if (a !== b)
+ throw new Error(`expected ${b}, got ${a}\n${new Error().stack}`);
+ };
+}
+
+print(BUGNUMBER + ": " + summary);
+
+let logs = [];
+function log(x) {
+ logs.push(x);
+}
+
+let unwrapMap = new Map();
+function unwrap(maybeWrapped) {
+ if (unwrapMap.has(maybeWrapped))
+ return unwrapMap.get(maybeWrapped);
+ return maybeWrapped;
+}
+function ToString(name) {
+ if (name == Symbol.iterator)
+ return "@@iterator";
+ return String(name);
+}
+function logger(obj, prefix=[]) {
+ let wrapped = new Proxy(obj, {
+ get(that, name) {
+ if (name == "return") {
+ // FIXME: Bug 1147371.
+ // We ignore IteratorClose for now.
+ return obj[name];
+ }
+
+ let names = prefix.concat(ToString(name));
+ log("rhs get " + names.join("::"));
+ let v = obj[name];
+ if (typeof v === "object" || typeof v === "function")
+ return logger(v, names);
+ return v;
+ },
+ apply(that, thisArg, args) {
+ let names = prefix.slice();
+ log("rhs call " + names.join("::"));
+ let v = obj.apply(unwrap(thisArg), args);
+ if (typeof v === "object" || typeof v === "function") {
+ names[names.length - 1] += "()";
+ return logger(v, names);
+ }
+ return v;
+ }
+ });
+ unwrapMap.set(wrapped, obj);
+ return wrapped;
+}
+
+class C1 {
+ constructor() {
+ this.clear();
+ }
+ clear() {
+ this.values = {};
+ }
+}
+for (let name of [
+ "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m",
+ "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z",
+ "0", "1", "length"
+]) {
+ Object.defineProperty(C1.prototype, name, {
+ set: function(value) {
+ log("lhs set " + name);
+ this.values[name] = value;
+ }
+ });
+}
+class C2 extends C1 {
+ constructor() {
+ super();
+
+ let clear = () => {
+ logs = [];
+ this.clear();
+ };
+
+ // Array.
+
+ clear();
+ [
+ super.a
+ ] = logger(["A"]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+ ].join(","));
+ assertEq(this.values.a, "A");
+
+ clear();
+ [
+ super[ (log("lhs before name a"), "a") ]
+ ] = logger(["A"]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before name a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+ ].join(","));
+ assertEq(this.values.a, "A");
+
+ // Array rest.
+
+ clear();
+ [
+ ...super.a
+ ] = logger(["A", "B", "C"]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "lhs set a",
+ ].join(","));
+ assertEq(this.values.a.join(","), "A,B,C");
+
+ clear();
+ [
+ ...super[ (log("lhs before name a"), "a") ]
+ ] = logger(["A", "B", "C"]);;
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before name a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "lhs set a",
+ ].join(","));
+ assertEq(this.values.a.join(","), "A,B,C");
+
+ // Array combined.
+
+ clear();
+ [
+ super.a,
+ super[ (log("lhs before name b"), "b") ],
+ ...super[ (log("lhs before name c"), "c") ]
+ ] = logger(["A", "B", "C"]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+
+ "lhs before name b",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set b",
+
+ "lhs before name c",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "lhs set c",
+ ].join(","));
+ assertEq(this.values.a, "A");
+ assertEq(this.values.b, "B");
+ assertEq(this.values.c.join(","), "C");
+
+ // Object.
+
+ clear();
+ ({
+ a: super.a
+ } = logger({a: "A"}));
+ assertEq(logs.join(","),
+ [
+ "rhs get a",
+ "lhs set a",
+ ].join(","));
+ assertEq(this.values.a, "A");
+
+ clear();
+ ({
+ a: super[ (log("lhs before name a"), "a") ]
+ } = logger({a: "A"}));
+ assertEq(logs.join(","),
+ [
+ "lhs before name a",
+ "rhs get a",
+ "lhs set a",
+ ].join(","));
+ assertEq(this.values.a, "A");
+
+ // Object combined.
+
+ clear();
+ ({
+ a: super.a,
+ b: super[ (log("lhs before name b"), "b") ]
+ } = logger({a: "A", b: "B"}));
+ assertEq(logs.join(","),
+ [
+ "rhs get a",
+ "lhs set a",
+
+ "lhs before name b",
+ "rhs get b",
+ "lhs set b",
+ ].join(","));
+ assertEq(this.values.a, "A");
+ assertEq(this.values.b, "B");
+
+ // == Nested ==
+
+ // Array -> Array
+
+ clear();
+ [
+ [
+ super[ (log("lhs before name a"), "a") ],
+ ...super[ (log("lhs before name b"), "b") ]
+ ]
+ ] = logger([["A", "B"]]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before name a",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set a",
+
+ "lhs before name b",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "lhs set b",
+ ].join(","));
+ assertEq(this.values.a, "A");
+ assertEq(this.values.b.length, 1);
+ assertEq(this.values.b[0], "B");
+
+ // Array rest -> Array
+
+ clear();
+ [
+ ...[
+ super[ (log("lhs before name a"), "a") ],
+ ...super[ (log("lhs before name b"), "b") ]
+ ]
+ ] = logger(["A", "B"]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+
+ "lhs before name a",
+ "lhs set a",
+
+ "lhs before name b",
+ "lhs set b",
+ ].join(","));
+ assertEq(this.values.a, "A");
+ assertEq(this.values.b.join(","), "B");
+
+ // Array -> Object
+ clear();
+ [
+ {
+ a: super[ (log("lhs before name a"), "a") ]
+ }
+ ] = logger([{a: "A"}]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+
+ "lhs before name a",
+ "rhs get @@iterator()::next()::value::a",
+ "lhs set a",
+ ].join(","));
+ assertEq(this.values.a, "A");
+
+ // Array rest -> Object
+ clear();
+ [
+ ...{
+ 0: super[ (log("lhs before name 0"), "0") ],
+ 1: super[ (log("lhs before name 1"), "1") ],
+ length: super[ (log("lhs before name length"), "length") ],
+ }
+ ] = logger(["A", "B"]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+
+ "lhs before name 0",
+ "lhs set 0",
+
+ "lhs before name 1",
+ "lhs set 1",
+
+ "lhs before name length",
+ "lhs set length",
+ ].join(","));
+ assertEq(this.values["0"], "A");
+ assertEq(this.values["1"], "B");
+ assertEq(this.values.length, 2);
+
+ // Object -> Array
+ clear();
+ ({
+ a: [
+ super[ (log("lhs before name b"), "b") ]
+ ]
+ } = logger({a: ["B"]}));
+ assertEq(logs.join(","),
+ [
+ "rhs get a",
+ "rhs get a::@@iterator",
+ "rhs call a::@@iterator",
+
+ "lhs before name b",
+ "rhs get a::@@iterator()::next",
+ "rhs call a::@@iterator()::next",
+ "rhs get a::@@iterator()::next()::done",
+ "rhs get a::@@iterator()::next()::value",
+ "lhs set b",
+ ].join(","));
+ assertEq(this.values.b, "B");
+
+ // Object -> Object
+ clear();
+ ({
+ a: {
+ b: super[ (log("lhs before name b"), "b") ]
+ }
+ } = logger({a: {b: "B"}}));
+ assertEq(logs.join(","),
+ [
+ "rhs get a",
+ "lhs before name b",
+ "rhs get a::b",
+ "lhs set b",
+ ].join(","));
+ assertEq(this.values.b, "B");
+
+ // All combined
+
+ clear();
+ [
+ super[ (log("lhs before name a"), "a") ],
+ [
+ super[ (log("lhs before name b"), "b") ],
+ {
+ c: super[ (log("lhs before name c"), "c") ],
+ d: {
+ e: super[ (log("lhs before name e"), "e") ],
+ f: [
+ super[ (log("lhs before name g"), "g") ]
+ ]
+ }
+ }
+ ],
+ {
+ h: super[ (log("lhs before name h"), "h") ],
+ i: [
+ super[ (log("lhs before name j"), "j") ],
+ {
+ k: [
+ super[ (log("lhs before name l"), "l") ]
+ ]
+ }
+ ]
+ },
+ ...[
+ super[ (log("lhs before name m"), "m") ],
+ [
+ super[ (log("lhs before name n"), "n") ],
+ {
+ o: super[ (log("lhs before name o"), "o") ],
+ p: {
+ q: super[ (log("lhs before name q"), "q") ],
+ r: [
+ super[ (log("lhs before name s"), "s") ]
+ ]
+ }
+ }
+ ],
+ ...{
+ 0: super[ (log("lhs before name t"), "t") ],
+ 1: [
+ super[ (log("lhs before name u"), "u") ],
+ {
+ v: super[ (log("lhs before name v"), "v") ],
+ w: {
+ x: super[ (log("lhs before name x"), "x") ],
+ y: [
+ super[ (log("lhs before name z"), "z") ]
+ ]
+ }
+ }
+ ],
+ length: super[ (log("lhs before name length"), "length") ],
+ }
+ ]
+ ] = logger(["A",
+ ["B", {c: "C", d: {e: "E", f: ["G"]}}],
+ {h: "H", i: ["J", {k: ["L"]}]},
+ "M",
+ ["N", {o: "O", p: {q: "Q", r: ["S"]}}],
+ "T", ["U", {v: "V", w: {x: "X", y: ["Z"]}}]]);
+ assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before name a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before name b",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set b",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+
+ "lhs before name c",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::c",
+ "lhs set c",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d",
+
+ "lhs before name e",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::e",
+ "lhs set e",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator",
+
+ "lhs before name g",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next()::value",
+ "lhs set g",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+
+ "lhs before name h",
+ "rhs get @@iterator()::next()::value::h",
+ "lhs set h",
+
+ "rhs get @@iterator()::next()::value::i",
+ "rhs get @@iterator()::next()::value::i::@@iterator",
+ "rhs call @@iterator()::next()::value::i::@@iterator",
+
+ "lhs before name j",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value",
+ "lhs set j",
+
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value",
+
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator",
+
+ "lhs before name l",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next()::value",
+ "lhs set l",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+
+ "lhs before name m",
+ "lhs set m",
+
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before name n",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set n",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+
+ "lhs before name o",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::o",
+ "lhs set o",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p",
+
+ "lhs before name q",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::q",
+ "lhs set q",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator",
+
+ "lhs before name s",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next()::value",
+ "lhs set s",
+
+ "lhs before name t",
+ "lhs set t",
+
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before name u",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set u",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+
+ "lhs before name v",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::v",
+ "lhs set v",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w",
+
+ "lhs before name x",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::x",
+ "lhs set x",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator",
+
+ "lhs before name z",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next()::value",
+ "lhs set z",
+
+ "lhs before name length",
+ "lhs set length",
+ ].join(","));
+ assertEq(this.values.a, "A");
+ assertEq(this.values.b, "B");
+ assertEq(this.values.c, "C");
+ assertEq(this.values.e, "E");
+ assertEq(this.values.g, "G");
+ assertEq(this.values.h, "H");
+ assertEq(this.values.j, "J");
+ assertEq(this.values.l, "L");
+ assertEq(this.values.m, "M");
+ assertEq(this.values.n, "N");
+ assertEq(this.values.o, "O");
+ assertEq(this.values.q, "Q");
+ assertEq(this.values.s, "S");
+ assertEq(this.values.t, "T");
+ assertEq(this.values.u, "U");
+ assertEq(this.values.v, "V");
+ assertEq(this.values.x, "X");
+ assertEq(this.values.z, "Z");
+ assertEq(this.values.length, 2);
+ }
+}
+
+new C2();
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);
diff --git a/js/src/tests/ecma_6/Destructuring/order.js b/js/src/tests/ecma_6/Destructuring/order.js
new file mode 100644
index 000000000..4eb48cd2b
--- /dev/null
+++ b/js/src/tests/ecma_6/Destructuring/order.js
@@ -0,0 +1,745 @@
+var BUGNUMBER = 1204028;
+var summary = "Destructuring should evaluate lhs reference before rhs";
+
+print(BUGNUMBER + ": " + summary);
+
+let storage = {
+ clear() {
+ this.values = {};
+ }
+};
+storage.clear();
+let obj = new Proxy(storage, {
+ set(that, name, value) {
+ log("lhs set " + name);
+ storage.values[name] = value;
+ }
+});
+
+let logs = [];
+function log(x) {
+ logs.push(x);
+}
+
+function clear() {
+ logs = [];
+ storage.clear();
+}
+
+let unwrapMap = new Map();
+function unwrap(maybeWrapped) {
+ if (unwrapMap.has(maybeWrapped))
+ return unwrapMap.get(maybeWrapped);
+ return maybeWrapped;
+}
+function ToString(name) {
+ if (name == Symbol.iterator)
+ return "@@iterator";
+ return String(name);
+}
+function logger(obj, prefix=[]) {
+ let wrapped = new Proxy(obj, {
+ get(that, name) {
+ if (name == "return") {
+ // FIXME: Bug 1147371.
+ // We ignore IteratorClose for now.
+ return obj[name];
+ }
+
+ let names = prefix.concat(ToString(name));
+ log("rhs get " + names.join("::"));
+ let v = obj[name];
+ if (typeof v === "object" || typeof v === "function")
+ return logger(v, names);
+ return v;
+ },
+ apply(that, thisArg, args) {
+ let names = prefix.slice();
+ log("rhs call " + names.join("::"));
+ let v = obj.apply(unwrap(thisArg), args);
+ if (typeof v === "object" || typeof v === "function") {
+ names[names.length - 1] += "()";
+ return logger(v, names);
+ }
+ return v;
+ }
+ });
+ unwrapMap.set(wrapped, obj);
+ return wrapped;
+}
+
+// Array.
+
+clear();
+[
+ ( log("lhs before obj a"), obj ).a
+] = logger(["A"]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before obj a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+ ].join(","));
+assertEq(storage.values.a, "A");
+
+clear();
+[
+ ( log("lhs before obj a"), obj )[ (log("lhs before name a"), "a") ]
+] = logger(["A"]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before obj a",
+ "lhs before name a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+ ].join(","));
+assertEq(storage.values.a, "A");
+
+// Array rest.
+
+clear();
+[
+ ...( log("lhs before obj a"), obj ).a
+] = logger(["A", "B", "C"]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before obj a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "lhs set a",
+ ].join(","));
+assertEq(storage.values.a.join(","), "A,B,C");
+
+clear();
+[
+ ...( log("lhs before obj a"), obj )[ (log("lhs before name a"), "a") ]
+] = logger(["A", "B", "C"]);;
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before obj a",
+ "lhs before name a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "lhs set a",
+ ].join(","));
+assertEq(storage.values.a.join(","), "A,B,C");
+
+// Array combined.
+
+clear();
+[
+ ( log("lhs before obj a"), obj ).a,
+ ( log("lhs before obj b"), obj )[ (log("lhs before name b"), "b") ],
+ ...( log("lhs before obj c"), obj )[ (log("lhs before name c"), "c") ]
+] = logger(["A", "B", "C"]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before obj a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+
+ "lhs before obj b",
+ "lhs before name b",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set b",
+
+ "lhs before obj c",
+ "lhs before name c",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "lhs set c",
+ ].join(","));
+assertEq(storage.values.a, "A");
+assertEq(storage.values.b, "B");
+assertEq(storage.values.c.join(","), "C");
+
+// Object.
+
+clear();
+({
+ a: ( log("lhs before obj a"), obj ).a
+} = logger({a: "A"}));
+assertEq(logs.join(","),
+ [
+ "lhs before obj a",
+ "rhs get a",
+ "lhs set a",
+ ].join(","));
+assertEq(storage.values.a, "A");
+
+clear();
+({
+ a: ( log("lhs before obj a"), obj )[ (log("lhs before name a"), "a") ]
+} = logger({a: "A"}));
+assertEq(logs.join(","),
+ [
+ "lhs before obj a",
+ "lhs before name a",
+ "rhs get a",
+ "lhs set a",
+ ].join(","));
+assertEq(storage.values.a, "A");
+
+// Object combined.
+
+clear();
+({
+ a: ( log("lhs before obj a"), obj ).a,
+ b: ( log("lhs before obj b"), obj )[ (log("lhs before name b"), "b") ]
+} = logger({a: "A", b: "B"}));
+assertEq(logs.join(","),
+ [
+ "lhs before obj a",
+ "rhs get a",
+ "lhs set a",
+
+ "lhs before obj b",
+ "lhs before name b",
+ "rhs get b",
+ "lhs set b",
+ ].join(","));
+assertEq(storage.values.a, "A");
+assertEq(storage.values.b, "B");
+
+// == Nested ==
+
+// Array -> Array
+
+clear();
+[
+ [
+ ( log("lhs before obj a"), obj )[ (log("lhs before name a"), "a") ],
+ ...( log("lhs before obj b"), obj )[ (log("lhs before name b"), "b") ]
+ ]
+] = logger([["A", "B"]]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before obj a",
+ "lhs before name a",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set a",
+
+ "lhs before obj b",
+ "lhs before name b",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "lhs set b",
+ ].join(","));
+assertEq(storage.values.a, "A");
+assertEq(storage.values.b.length, 1);
+assertEq(storage.values.b[0], "B");
+
+// Array rest -> Array
+
+clear();
+[
+ ...[
+ ( log("lhs before obj a"), obj )[ (log("lhs before name a"), "a") ],
+ ...( log("lhs before obj b"), obj )[ (log("lhs before name b"), "b") ]
+ ]
+] = logger(["A", "B"]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+
+ "lhs before obj a",
+ "lhs before name a",
+ "lhs set a",
+
+ "lhs before obj b",
+ "lhs before name b",
+ "lhs set b",
+ ].join(","));
+assertEq(storage.values.a, "A");
+assertEq(storage.values.b.join(","), "B");
+
+// Array -> Object
+clear();
+[
+ {
+ a: ( log("lhs before obj a"), obj )[ (log("lhs before name a"), "a") ]
+ }
+] = logger([{a: "A"}]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+
+ "lhs before obj a",
+ "lhs before name a",
+ "rhs get @@iterator()::next()::value::a",
+ "lhs set a",
+ ].join(","));
+assertEq(storage.values.a, "A");
+
+// Array rest -> Object
+clear();
+[
+ ...{
+ 0: ( log("lhs before obj 0"), obj )[ (log("lhs before name 0"), "0") ],
+ 1: ( log("lhs before obj 1"), obj )[ (log("lhs before name 1"), "1") ],
+ length: ( log("lhs before obj length"), obj )[ (log("lhs before name length"), "length") ],
+ }
+] = logger(["A", "B"]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+
+ "lhs before obj 0",
+ "lhs before name 0",
+ "lhs set 0",
+
+ "lhs before obj 1",
+ "lhs before name 1",
+ "lhs set 1",
+
+ "lhs before obj length",
+ "lhs before name length",
+ "lhs set length",
+ ].join(","));
+assertEq(storage.values["0"], "A");
+assertEq(storage.values["1"], "B");
+assertEq(storage.values.length, 2);
+
+// Object -> Array
+clear();
+({
+ a: [
+ ( log("lhs before obj b"), obj )[ (log("lhs before name b"), "b") ]
+ ]
+} = logger({a: ["B"]}));
+assertEq(logs.join(","),
+ [
+ "rhs get a",
+ "rhs get a::@@iterator",
+ "rhs call a::@@iterator",
+
+ "lhs before obj b",
+ "lhs before name b",
+ "rhs get a::@@iterator()::next",
+ "rhs call a::@@iterator()::next",
+ "rhs get a::@@iterator()::next()::done",
+ "rhs get a::@@iterator()::next()::value",
+ "lhs set b",
+ ].join(","));
+assertEq(storage.values.b, "B");
+
+// Object -> Object
+clear();
+({
+ a: {
+ b: ( log("lhs before obj b"), obj )[ (log("lhs before name b"), "b") ]
+ }
+} = logger({a: {b: "B"}}));
+assertEq(logs.join(","),
+ [
+ "rhs get a",
+ "lhs before obj b",
+ "lhs before name b",
+ "rhs get a::b",
+ "lhs set b",
+ ].join(","));
+assertEq(storage.values.b, "B");
+
+// All combined
+
+clear();
+[
+ ( log("lhs before obj a"), obj )[ (log("lhs before name a"), "a") ],
+ [
+ ( log("lhs before obj b"), obj )[ (log("lhs before name b"), "b") ],
+ {
+ c: ( log("lhs before obj c"), obj )[ (log("lhs before name c"), "c") ],
+ d: {
+ e: ( log("lhs before obj e"), obj )[ (log("lhs before name e"), "e") ],
+ f: [
+ ( log("lhs before obj g"), obj )[ (log("lhs before name g"), "g") ]
+ ]
+ }
+ }
+ ],
+ {
+ h: ( log("lhs before obj h"), obj )[ (log("lhs before name h"), "h") ],
+ i: [
+ ( log("lhs before obj j"), obj )[ (log("lhs before name j"), "j") ],
+ {
+ k: [
+ ( log("lhs before obj l"), obj )[ (log("lhs before name l"), "l") ]
+ ]
+ }
+ ]
+ },
+ ...[
+ ( log("lhs before obj m"), obj )[ (log("lhs before name m"), "m") ],
+ [
+ ( log("lhs before obj n"), obj )[ (log("lhs before name n"), "n") ],
+ {
+ o: ( log("lhs before obj o"), obj )[ (log("lhs before name o"), "o") ],
+ p: {
+ q: ( log("lhs before obj q"), obj )[ (log("lhs before name q"), "q") ],
+ r: [
+ ( log("lhs before obj s"), obj )[ (log("lhs before name s"), "s") ]
+ ]
+ }
+ }
+ ],
+ ...{
+ 0: ( log("lhs before obj t"), obj )[ (log("lhs before name t"), "t") ],
+ 1: [
+ ( log("lhs before obj u"), obj )[ (log("lhs before name u"), "u") ],
+ {
+ v: ( log("lhs before obj v"), obj )[ (log("lhs before name v"), "v") ],
+ w: {
+ x: ( log("lhs before obj x"), obj )[ (log("lhs before name x"), "x") ],
+ y: [
+ ( log("lhs before obj z"), obj )[ (log("lhs before name z"), "z") ]
+ ]
+ }
+ }
+ ],
+ length: ( log("lhs before obj length"), obj )[ (log("lhs before name length"), "length") ],
+ }
+ ]
+] = logger(["A",
+ ["B", {c: "C", d: {e: "E", f: ["G"]}}],
+ {h: "H", i: ["J", {k: ["L"]}]},
+ "M",
+ ["N", {o: "O", p: {q: "Q", r: ["S"]}}],
+ "T", ["U", {v: "V", w: {x: "X", y: ["Z"]}}]]);
+assertEq(logs.join(","),
+ [
+ "rhs get @@iterator",
+ "rhs call @@iterator",
+
+ "lhs before obj a",
+ "lhs before name a",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "lhs set a",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before obj b",
+ "lhs before name b",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set b",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+
+ "lhs before obj c",
+ "lhs before name c",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::c",
+ "lhs set c",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d",
+
+ "lhs before obj e",
+ "lhs before name e",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::e",
+ "lhs set e",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator",
+
+ "lhs before obj g",
+ "lhs before name g",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::d::f::@@iterator()::next()::value",
+ "lhs set g",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+
+ "lhs before obj h",
+ "lhs before name h",
+ "rhs get @@iterator()::next()::value::h",
+ "lhs set h",
+
+ "rhs get @@iterator()::next()::value::i",
+ "rhs get @@iterator()::next()::value::i::@@iterator",
+ "rhs call @@iterator()::next()::value::i::@@iterator",
+
+ "lhs before obj j",
+ "lhs before name j",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value",
+ "lhs set j",
+
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value",
+
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator",
+
+ "lhs before obj l",
+ "lhs before name l",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::i::@@iterator()::next()::value::k::@@iterator()::next()::value",
+ "lhs set l",
+
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value",
+ "rhs get @@iterator()::next",
+ "rhs call @@iterator()::next",
+ "rhs get @@iterator()::next()::done",
+
+ "lhs before obj m",
+ "lhs before name m",
+ "lhs set m",
+
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before obj n",
+ "lhs before name n",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set n",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+
+ "lhs before obj o",
+ "lhs before name o",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::o",
+ "lhs set o",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p",
+
+ "lhs before obj q",
+ "lhs before name q",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::q",
+ "lhs set q",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator",
+
+ "lhs before obj s",
+ "lhs before name s",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::p::r::@@iterator()::next()::value",
+ "lhs set s",
+
+ "lhs before obj t",
+ "lhs before name t",
+ "lhs set t",
+
+ "rhs get @@iterator()::next()::value::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator",
+
+ "lhs before obj u",
+ "lhs before name u",
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+ "lhs set u",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value",
+
+ "lhs before obj v",
+ "lhs before name v",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::v",
+ "lhs set v",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w",
+
+ "lhs before obj x",
+ "lhs before name x",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::x",
+ "lhs set x",
+
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator",
+
+ "lhs before obj z",
+ "lhs before name z",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next",
+ "rhs call @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next()::done",
+ "rhs get @@iterator()::next()::value::@@iterator()::next()::value::w::y::@@iterator()::next()::value",
+ "lhs set z",
+
+ "lhs before obj length",
+ "lhs before name length",
+ "lhs set length",
+ ].join(","));
+assertEq(storage.values.a, "A");
+assertEq(storage.values.b, "B");
+assertEq(storage.values.c, "C");
+assertEq(storage.values.e, "E");
+assertEq(storage.values.g, "G");
+assertEq(storage.values.h, "H");
+assertEq(storage.values.j, "J");
+assertEq(storage.values.l, "L");
+assertEq(storage.values.m, "M");
+assertEq(storage.values.n, "N");
+assertEq(storage.values.o, "O");
+assertEq(storage.values.q, "Q");
+assertEq(storage.values.s, "S");
+assertEq(storage.values.t, "T");
+assertEq(storage.values.u, "U");
+assertEq(storage.values.v, "V");
+assertEq(storage.values.x, "X");
+assertEq(storage.values.z, "Z");
+assertEq(storage.values.length, 2);
+
+if (typeof reportCompare === "function")
+ reportCompare(true, true);