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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /js/src/tests/non262/class/compPropNames.js | |
parent | Initial commit. (diff) | |
download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/tests/non262/class/compPropNames.js')
-rw-r--r-- | js/src/tests/non262/class/compPropNames.js | 243 |
1 files changed, 243 insertions, 0 deletions
diff --git a/js/src/tests/non262/class/compPropNames.js b/js/src/tests/non262/class/compPropNames.js new file mode 100644 index 0000000000..1c4064d8a5 --- /dev/null +++ b/js/src/tests/non262/class/compPropNames.js @@ -0,0 +1,243 @@ +var BUGNUMBER = 924688; +var summary = 'Computed Property Names'; + +print(BUGNUMBER + ": " + summary); + +// Function definitions. +function syntaxError (script) { + try { + Function(script); + } catch (e) { + if (e instanceof SyntaxError) { + return; + } + } + throw new Error('Expected syntax error: ' + script); +} + + +// Tests begin. + +assertThrowsInstanceOf(function() { var a = {[field1]: "a", [field2]: "b"}; }, ReferenceError); + +assertThrowsInstanceOf(function() { + field1 = 1; + var a = {[field1]: "a", [field2]: "b"}; + }, ReferenceError); + +var f1 = 1; +var f2 = 2; +var a = {[f1]: "a", [f2]: "b"}; +assertEq(a[1], "a"); +assertEq(a[2], "b"); + +var a = {[f1]: "a", f2: "b"}; +assertEq(a[1], "a"); +assertEq(a.f2, "b"); + +var a = {["f1"]: "a", [++f2]: "b"}; +assertEq(a.f1, "a"); +assertEq(a[3], "b"); + +var a = {["f1"]: "a", f2: "b"}; +assertEq(a.f1, "a"); +assertEq(a.f2, "b"); + + +var i = 0; +var a = { + ["foo" + ++i]: i, + ["foo" + ++i]: i, + ["foo" + ++i]: i +}; +assertEq(a.foo1, 1); +assertEq(a.foo2, 2); +assertEq(a.foo3, 3); + +var expr = "abc"; +syntaxError("({["); +syntaxError("({[expr"); +syntaxError("({[expr]"); +syntaxError("({[expr]})"); +syntaxError("({[expr] 0})"); +syntaxError("({[expr], 0})"); +syntaxError("[[expr]: 0]"); +syntaxError("({[expr]: name: 0})"); +syntaxError("({[1, 2]: 3})"); // because '1,2' is an Expression but not an AssignmentExpression +syntaxError("({[1;]: 1})"); // and not an ExpressionStatement +syntaxError("({[if (0) 0;]})"); // much less a Statement +syntaxError("function f() { {[x]: 1} }"); // that's not even an ObjectLiteral +syntaxError("function f() { [x]: 1 }"); // or that +syntaxError('a = {[f1@]: "a", [f2]: "b"}'); // unexpected symbol at end of AssignmentExpression +try { JSON.parse('{["a"]:4}'); } catch(e) { + if (!(e instanceof SyntaxError)) throw new Error('Expected syntax error'); +} + +// Property characteristics. +a = { ["b"] : 4 }; +b = Object.getOwnPropertyDescriptor(a, "b"); +assertEq(b.configurable, true); +assertEq(b.enumerable, true); +assertEq(b.writable, true); +assertEq(b.value, 4); + +// Setter and getter are not hit. +Object.defineProperty(Object.prototype, "x", { set: function (x) { throw "FAIL"; }, + get: function (x) { throw "FAIL"; } }); +var a = {["x"]: 0}; +assertEq(a.x, 0); + +a = {["x"]: 1, ["x"]: 2}; +assertEq(a.x, 2); +a = {x: 1, ["x"]: 2}; +assertEq(a.x, 2); +a = {["x"]: 1, x: 2}; +assertEq(a.x, 2); + +// Symbols +var unique_sym = Symbol("1"), registered_sym = Symbol.for("2"); +a = { [unique_sym] : 2, [registered_sym] : 3 }; +assertEq(a[unique_sym], 2); +assertEq(a[registered_sym], 3); + +// Same expression can be run several times to build objects with different property names. +a = []; +for (var i = 0; i < 3; i++) { + a[i] = {["foo" + i]: i}; +} +assertEq(a[0].foo0, 0); +assertEq(a[1].foo1, 1); +assertEq(a[2].foo2, 2); + +// Following are stored in object's elements rather than slots. +var i = 0; +a = { [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i +} +for (var i = 1; i < 9; i++) + assertEq(a[i], i); +syntaxError("a.1"); +syntaxError("a.2"); +syntaxError("a.3"); +syntaxError("a.4"); +syntaxError("a.5"); +syntaxError("a.6"); +syntaxError("a.7"); +syntaxError("a.8"); + +// Adding a single large index. +var i = 0; +a = { [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [++i] : i, + [3000] : 2999 +} +for (var i = 1; i < 9; i++) + assertEq(a[i], i); +assertEq(a[3000], 2999); + +// Defining several properties using eval. +var code = "({"; +for (i = 0; i < 1000; i++) + code += "['foo' + " + i + "]: 'ok', " +code += "['bar']: 'ok'});"; +var obj = eval(code); +for (i = 0; i < 1000; i++) + assertEq(obj["foo" + i], "ok"); +assertEq(obj["bar"], "ok"); + +// Can yield in a computed property name which is in a generator. +function* g() { + var a = { [yield 1]: 2, [yield 2]: 3}; + return a; +} + +var it = g(); +var next = it.next(); +assertEq(next.done, false); +assertEq(next.value, 1); +next = it.next("hello"); +assertEq(next.done, false); +assertEq(next.value, 2); +next = it.next("world"); +assertEq(next.done, true); +assertEq(next.value.hello, 2); +assertEq(next.value.world, 3); + +// get and set. +expr = "abc"; +syntaxError("({get ["); +syntaxError("({get [expr()"); +syntaxError("({get [expr]()"); +syntaxError("({get [expr]()})"); +syntaxError("({get [expr] 0 ()})"); +syntaxError("({get [expr], 0(})"); +syntaxError("[get [expr]: 0()]"); +syntaxError("({get [expr](: name: 0})"); +syntaxError("({get [1, 2](): 3})"); +syntaxError("({get [1;](): 1})"); +syntaxError("({get [if (0) 0;](){}})"); +syntaxError("({set [(a)"); +syntaxError("({set [expr(a)"); +syntaxError("({set [expr](a){}"); +syntaxError("({set [expr]}(a)"); +syntaxError("({set [expr](a), 0})"); +syntaxError("[set [expr](a): 0]"); +syntaxError("({set [expr](a): name: 0})"); +syntaxError("({set [1, 2](a) {return 3;}})"); +syntaxError("({set [1;](a) {return 1}})"); +syntaxError("({set [if (0) 0;](a){}})"); +syntaxError("function f() { {get [x](): 1} }"); +syntaxError("function f() { get [x](): 1 }"); +syntaxError("function f() { {set [x](a): 1} }"); +syntaxError("function f() { set [x](a): 1 }"); +f1 = "abc"; +syntaxError('a = {get [f1@](){}, set [f1](a){}}'); // unexpected symbol at end of AssignmentExpression +syntaxError('a = {get@ [f1](){}, set [f1](a){}}'); // unexpected symbol after get +syntaxError('a = {get [f1](){}, set@ [f1](a){}}'); // unexpected symbol after set + +expr = "hey"; +a = {get [expr]() { return 3; }, set[expr](v) { throw 2; }}; +assertEq(a.hey, 3); +assertThrowsValue(() => { a.hey = 5; }, 2); + +// Symbols with duplicate get and set. +expr = Symbol("hey"); +a = {get [expr]() { return 3; }, set[expr](v) { throw 2; }, + set [expr] (w) { throw 4; }, get[expr](){return 5; }}; +assertEq(a[expr], 5); +assertThrowsValue(() => { a[expr] = 7; }, 4); + +// expressions with side effects are called in the right order +log = ""; +obj = { + "a": log += 'a', + get [log += 'b']() {}, + [log += 'c']: log += 'd', + set [log += 'e'](a) {} +}; +assertEq(log, "abcde"); + +// assignment expressions, objects and regex in computed names +obj = { + get [a = "hey"]() { return 1; }, + get [a = {b : 4}.b]() { return 2; }, + set [/x/.source](a) { throw 3; } +} +assertEq(obj.hey, 1); +assertEq(obj[4], 2); +assertThrowsValue(() => { obj.x = 7; }, 3); + +if (typeof reportCompare === 'function') + reportCompare(0, 0, "ok"); |