Upgrade to 3.29
Update V8 to 3.29.88.17 and update makefiles to support building on
all the relevant platforms.
Bug: 17370214
Change-Id: Ia3407c157fd8d72a93e23d8318ccaf6ecf77fa4e
diff --git a/test/mjsunit/es6/symbols.js b/test/mjsunit/es6/symbols.js
new file mode 100644
index 0000000..60737af
--- /dev/null
+++ b/test/mjsunit/es6/symbols.js
@@ -0,0 +1,503 @@
+// Copyright 2013 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following
+// disclaimer in the documentation and/or other materials provided
+// with the distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived
+// from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --expose-gc --allow-natives-syntax
+
+var symbols = []
+
+
+// Returns true if the string is a valid
+// serialization of Symbols added to the 'symbols'
+// array. Adjust if you extend 'symbols' with other
+// values.
+function isValidSymbolString(s) {
+ return ["Symbol(66)", "Symbol()"].indexOf(s) >= 0;
+}
+
+
+// Test different forms of constructor calls.
+function TestNew() {
+ function indirectSymbol() { return Symbol() }
+ function indirect() { return indirectSymbol() }
+ for (var i = 0; i < 2; ++i) {
+ for (var j = 0; j < 5; ++j) {
+ symbols.push(Symbol())
+ symbols.push(Symbol(undefined))
+ symbols.push(Symbol("66"))
+ symbols.push(Symbol(66))
+ symbols.push(Symbol().valueOf())
+ symbols.push(indirect())
+ }
+ %OptimizeFunctionOnNextCall(indirect)
+ indirect() // Call once before GC throws away type feedback.
+ gc() // Promote existing symbols and then allocate some more.
+ }
+ assertThrows(function () { Symbol(Symbol()) }, TypeError)
+ assertThrows(function () { new Symbol(66) }, TypeError)
+}
+TestNew()
+
+
+function TestType() {
+ for (var i in symbols) {
+ assertEquals("symbol", typeof symbols[i])
+ assertTrue(typeof symbols[i] === "symbol")
+ assertFalse(%SymbolIsPrivate(symbols[i]))
+ assertEquals(null, %_ClassOf(symbols[i]))
+ assertEquals("Symbol", %_ClassOf(Object(symbols[i])))
+ }
+}
+TestType()
+
+
+function TestPrototype() {
+ assertSame(Object.prototype, Symbol.prototype.__proto__)
+ assertSame(Symbol.prototype, Symbol().__proto__)
+ assertSame(Symbol.prototype, Object(Symbol()).__proto__)
+ for (var i in symbols) {
+ assertSame(Symbol.prototype, symbols[i].__proto__)
+ }
+}
+TestPrototype()
+
+
+function TestConstructor() {
+ assertSame(Function.prototype, Symbol.__proto__)
+ assertFalse(Object === Symbol.prototype.constructor)
+ assertFalse(Symbol === Object.prototype.constructor)
+ assertSame(Symbol, Symbol.prototype.constructor)
+ assertSame(Symbol, Symbol().__proto__.constructor)
+ assertSame(Symbol, Object(Symbol()).__proto__.constructor)
+ for (var i in symbols) {
+ assertSame(Symbol, symbols[i].__proto__.constructor)
+ }
+}
+TestConstructor()
+
+
+function TestValueOf() {
+ for (var i in symbols) {
+ assertTrue(symbols[i] === Object(symbols[i]).valueOf())
+ assertTrue(symbols[i] === symbols[i].valueOf())
+ assertTrue(Symbol.prototype.valueOf.call(Object(symbols[i])) === symbols[i])
+ assertTrue(Symbol.prototype.valueOf.call(symbols[i]) === symbols[i])
+ }
+}
+TestValueOf()
+
+
+function TestToString() {
+ for (var i in symbols) {
+ assertThrows(function() { new String(symbols[i]) }, TypeError)
+ assertEquals(symbols[i].toString(), String(symbols[i]))
+ assertThrows(function() { symbols[i] + "" }, TypeError)
+ assertThrows(function() { String(Object(symbols[i])) }, TypeError)
+ assertTrue(isValidSymbolString(symbols[i].toString()))
+ assertTrue(isValidSymbolString(Object(symbols[i]).toString()))
+ assertTrue(
+ isValidSymbolString(Symbol.prototype.toString.call(symbols[i])))
+ assertEquals(
+ "[object Symbol]", Object.prototype.toString.call(symbols[i]))
+ }
+}
+TestToString()
+
+
+function TestToBoolean() {
+ for (var i in symbols) {
+ assertTrue(Boolean(Object(symbols[i])))
+ assertFalse(!Object(symbols[i]))
+ assertTrue(Boolean(symbols[i]).valueOf())
+ assertFalse(!symbols[i])
+ assertTrue(!!symbols[i])
+ assertTrue(symbols[i] && true)
+ assertFalse(!symbols[i] && false)
+ assertTrue(!symbols[i] || true)
+ assertEquals(1, symbols[i] ? 1 : 2)
+ assertEquals(2, !symbols[i] ? 1 : 2)
+ if (!symbols[i]) assertUnreachable();
+ if (symbols[i]) {} else assertUnreachable();
+ }
+}
+TestToBoolean()
+
+
+function TestToNumber() {
+ for (var i in symbols) {
+ assertThrows(function() { Number(Object(symbols[i])) }, TypeError)
+ assertThrows(function() { +Object(symbols[i]) }, TypeError)
+ assertThrows(function() { Number(symbols[i]) }, TypeError)
+ assertThrows(function() { symbols[i] + 0 }, TypeError)
+ }
+}
+TestToNumber()
+
+
+function TestEquality() {
+ // Every symbol should equal itself, and non-strictly equal its wrapper.
+ for (var i in symbols) {
+ assertSame(symbols[i], symbols[i])
+ assertEquals(symbols[i], symbols[i])
+ assertTrue(Object.is(symbols[i], symbols[i]))
+ assertTrue(symbols[i] === symbols[i])
+ assertTrue(symbols[i] == symbols[i])
+ assertFalse(symbols[i] === Object(symbols[i]))
+ assertFalse(Object(symbols[i]) === symbols[i])
+ assertFalse(symbols[i] == Object(symbols[i]))
+ assertFalse(Object(symbols[i]) == symbols[i])
+ assertTrue(symbols[i] === symbols[i].valueOf())
+ assertTrue(symbols[i].valueOf() === symbols[i])
+ assertTrue(symbols[i] == symbols[i].valueOf())
+ assertTrue(symbols[i].valueOf() == symbols[i])
+ assertFalse(Object(symbols[i]) === Object(symbols[i]))
+ assertEquals(Object(symbols[i]).valueOf(), Object(symbols[i]).valueOf())
+ }
+
+ // All symbols should be distinct.
+ for (var i = 0; i < symbols.length; ++i) {
+ for (var j = i + 1; j < symbols.length; ++j) {
+ assertFalse(Object.is(symbols[i], symbols[j]))
+ assertFalse(symbols[i] === symbols[j])
+ assertFalse(symbols[i] == symbols[j])
+ }
+ }
+
+ // Symbols should not be equal to any other value (and the test terminates).
+ var values = [347, 1.275, NaN, "string", null, undefined, {}, function() {}]
+ for (var i in symbols) {
+ for (var j in values) {
+ assertFalse(symbols[i] === values[j])
+ assertFalse(values[j] === symbols[i])
+ assertFalse(symbols[i] == values[j])
+ assertFalse(values[j] == symbols[i])
+ }
+ }
+}
+TestEquality()
+
+
+function TestGet() {
+ for (var i in symbols) {
+ assertTrue(isValidSymbolString(symbols[i].toString()))
+ assertEquals(symbols[i], symbols[i].valueOf())
+ assertEquals(undefined, symbols[i].a)
+ assertEquals(undefined, symbols[i]["a" + "b"])
+ assertEquals(undefined, symbols[i]["" + "1"])
+ assertEquals(undefined, symbols[i][62])
+ }
+}
+TestGet()
+
+
+function TestSet() {
+ for (var i in symbols) {
+ symbols[i].toString = 0
+ assertTrue(isValidSymbolString(symbols[i].toString()))
+ symbols[i].valueOf = 0
+ assertEquals(symbols[i], symbols[i].valueOf())
+ symbols[i].a = 0
+ assertEquals(undefined, symbols[i].a)
+ symbols[i]["a" + "b"] = 0
+ assertEquals(undefined, symbols[i]["a" + "b"])
+ symbols[i][62] = 0
+ assertEquals(undefined, symbols[i][62])
+ }
+}
+TestSet()
+
+
+// Test Symbol wrapping/boxing over non-builtins.
+Symbol.prototype.getThisProto = function () {
+ return Object.getPrototypeOf(this);
+}
+function TestCall() {
+ for (var i in symbols) {
+ assertTrue(symbols[i].getThisProto() === Symbol.prototype)
+ }
+}
+TestCall()
+
+
+function TestCollections() {
+ var set = new Set
+ var map = new Map
+ var weakmap = new WeakMap
+ for (var i in symbols) {
+ set.add(symbols[i])
+ map.set(symbols[i], i)
+ weakmap.set(symbols[i], i)
+ }
+ assertEquals(symbols.length, set.size)
+ assertEquals(symbols.length, map.size)
+ for (var i in symbols) {
+ assertTrue(set.has(symbols[i]))
+ assertTrue(map.has(symbols[i]))
+ assertTrue(weakmap.has(symbols[i]))
+ assertEquals(i, map.get(symbols[i]))
+ assertEquals(i, weakmap.get(symbols[i]))
+ }
+ for (var i in symbols) {
+ assertTrue(set.delete(symbols[i]))
+ assertTrue(map.delete(symbols[i]))
+ assertTrue(weakmap.delete(symbols[i]))
+ }
+ assertEquals(0, set.size)
+ assertEquals(0, map.size)
+}
+TestCollections()
+
+
+
+function TestKeySet(obj) {
+ assertTrue(%HasFastProperties(obj))
+ // Set the even symbols via assignment.
+ for (var i = 0; i < symbols.length; i += 2) {
+ obj[symbols[i]] = i
+ // Object should remain in fast mode until too many properties were added.
+ assertTrue(%HasFastProperties(obj) || i >= 30)
+ }
+}
+
+
+function TestKeyDefine(obj) {
+ // Set the odd symbols via defineProperty (as non-enumerable).
+ for (var i = 1; i < symbols.length; i += 2) {
+ Object.defineProperty(obj, symbols[i], {value: i, configurable: true})
+ }
+}
+
+
+function TestKeyGet(obj) {
+ var obj2 = Object.create(obj)
+ for (var i in symbols) {
+ assertEquals(i|0, obj[symbols[i]])
+ assertEquals(i|0, obj2[symbols[i]])
+ }
+}
+
+
+function TestKeyHas(obj) {
+ for (var i in symbols) {
+ assertTrue(symbols[i] in obj)
+ assertTrue(Object.hasOwnProperty.call(obj, symbols[i]))
+ }
+}
+
+
+function TestKeyEnum(obj) {
+ for (var name in obj) {
+ assertEquals("string", typeof name)
+ }
+}
+
+
+function TestKeyNames(obj) {
+ assertEquals(0, Object.keys(obj).length)
+
+ var names = Object.getOwnPropertyNames(obj)
+ for (var i in names) {
+ assertEquals("string", typeof names[i])
+ }
+}
+
+
+function TestGetOwnPropertySymbols(obj) {
+ var syms = Object.getOwnPropertySymbols(obj)
+ assertEquals(syms.length, symbols.length)
+ for (var i in syms) {
+ assertEquals("symbol", typeof syms[i])
+ }
+}
+
+
+function TestKeyDescriptor(obj) {
+ for (var i in symbols) {
+ var desc = Object.getOwnPropertyDescriptor(obj, symbols[i])
+ assertEquals(i|0, desc.value)
+ assertTrue(desc.configurable)
+ assertEquals(i % 2 == 0, desc.writable)
+ assertEquals(i % 2 == 0, desc.enumerable)
+ assertEquals(i % 2 == 0,
+ Object.prototype.propertyIsEnumerable.call(obj, symbols[i]))
+ }
+}
+
+
+function TestKeyDelete(obj) {
+ for (var i in symbols) {
+ delete obj[symbols[i]]
+ }
+ for (var i in symbols) {
+ assertEquals(undefined, Object.getOwnPropertyDescriptor(obj, symbols[i]))
+ }
+}
+
+
+var objs = [{}, [], Object.create(null), Object(1), new Map, function(){}]
+
+for (var i in objs) {
+ var obj = objs[i]
+ TestKeySet(obj)
+ TestKeyDefine(obj)
+ TestKeyGet(obj)
+ TestKeyHas(obj)
+ TestKeyEnum(obj)
+ TestKeyNames(obj)
+ TestGetOwnPropertySymbols(obj)
+ TestKeyDescriptor(obj)
+ TestKeyDelete(obj)
+}
+
+
+function TestDefineProperties() {
+ var properties = {}
+ for (var i in symbols) {
+ Object.defineProperty(
+ properties, symbols[i], {value: {value: i}, enumerable: i % 2 === 0})
+ }
+ var o = Object.defineProperties({}, properties)
+ for (var i in symbols) {
+ assertEquals(i % 2 === 0, symbols[i] in o)
+ }
+}
+TestDefineProperties()
+
+
+function TestCreate() {
+ var properties = {}
+ for (var i in symbols) {
+ Object.defineProperty(
+ properties, symbols[i], {value: {value: i}, enumerable: i % 2 === 0})
+ }
+ var o = Object.create(Object.prototype, properties)
+ for (var i in symbols) {
+ assertEquals(i % 2 === 0, symbols[i] in o)
+ }
+}
+TestCreate()
+
+
+function TestCachedKeyAfterScavenge() {
+ gc();
+ // Keyed property lookup are cached. Hereby we assume that the keys are
+ // tenured, so that we only have to clear the cache between mark compacts,
+ // but not between scavenges. This must also apply for symbol keys.
+ var key = Symbol("key");
+ var a = {};
+ a[key] = "abc";
+
+ for (var i = 0; i < 100000; i++) {
+ a[key] += "a"; // Allocations cause a scavenge.
+ }
+}
+TestCachedKeyAfterScavenge();
+
+
+function TestGetOwnPropertySymbolsWithProto() {
+ // We need to be have fast properties to have insertion order for property
+ // keys. The current limit is currently 30 properties.
+ var syms = symbols.slice(0, 30);
+ var proto = {}
+ var object = Object.create(proto)
+ for (var i = 0; i < syms.length; i++) {
+ // Even on object, odd on proto.
+ if (i % 2) {
+ proto[syms[i]] = i
+ } else {
+ object[syms[i]] = i
+ }
+ }
+
+ assertTrue(%HasFastProperties(object));
+
+ var objectOwnSymbols = Object.getOwnPropertySymbols(object)
+ assertEquals(objectOwnSymbols.length, syms.length / 2)
+
+ for (var i = 0; i < objectOwnSymbols.length; i++) {
+ assertEquals(objectOwnSymbols[i], syms[i * 2])
+ }
+}
+TestGetOwnPropertySymbolsWithProto()
+
+
+function TestWellKnown() {
+ var symbols = [
+ // TODO(rossberg): reactivate once implemented.
+ // "hasInstance", "isConcatSpreadable", "isRegExp",
+ "iterator", /* "toStringTag", */ "unscopables"
+ ]
+
+ for (var i in symbols) {
+ var name = symbols[i]
+ var desc = Object.getOwnPropertyDescriptor(Symbol, name)
+ assertSame("symbol", typeof desc.value)
+ assertSame("Symbol(Symbol." + name + ")", desc.value.toString())
+ assertFalse(desc.writable)
+ assertFalse(desc.configurable)
+ assertFalse(desc.enumerable)
+
+ assertFalse(Symbol.for("Symbol." + name) === desc.value)
+ assertTrue(Symbol.keyFor(desc.value) === undefined)
+ }
+}
+TestWellKnown()
+
+
+function TestRegistry() {
+ var symbol1 = Symbol.for("x1")
+ var symbol2 = Symbol.for("x2")
+ assertFalse(symbol1 === symbol2)
+
+ assertSame(symbol1, Symbol.for("x1"))
+ assertSame(symbol2, Symbol.for("x2"))
+ assertSame("x1", Symbol.keyFor(symbol1))
+ assertSame("x2", Symbol.keyFor(symbol2))
+
+ assertSame(Symbol.for("1"), Symbol.for(1))
+ assertThrows(function() { Symbol.keyFor("bla") }, TypeError)
+ assertThrows(function() { Symbol.keyFor({}) }, TypeError)
+
+ var realm = Realm.create()
+ assertFalse(Symbol === Realm.eval(realm, "Symbol"))
+ assertFalse(Symbol.for === Realm.eval(realm, "Symbol.for"))
+ assertFalse(Symbol.keyFor === Realm.eval(realm, "Symbol.keyFor"))
+ assertSame(Symbol.create, Realm.eval(realm, "Symbol.create"))
+ assertSame(Symbol.iterator, Realm.eval(realm, "Symbol.iterator"))
+
+ assertSame(symbol1, Realm.eval(realm, "Symbol.for")("x1"))
+ assertSame(symbol1, Realm.eval(realm, "Symbol.for('x1')"))
+ assertSame("x1", Realm.eval(realm, "Symbol.keyFor")(symbol1))
+ Realm.shared = symbol1
+ assertSame("x1", Realm.eval(realm, "Symbol.keyFor(Realm.shared)"))
+
+ var symbol3 = Realm.eval(realm, "Symbol.for('x3')")
+ assertFalse(symbol1 === symbol3)
+ assertFalse(symbol2 === symbol3)
+ assertSame(symbol3, Symbol.for("x3"))
+ assertSame("x3", Symbol.keyFor(symbol3))
+}
+TestRegistry()