#![cfg(all( feature = "swc_ecma_transforms_compat", feature = "swc_ecma_transforms_module", feature = "swc_ecma_transforms_optimization", feature = "swc_ecma_transforms_proposal", ))] use swc_common::chain; use swc_common::Mark; use swc_ecma_parser::{EsConfig, Syntax, TsConfig}; use swc_ecma_transforms_base::resolver::resolver; use swc_ecma_transforms_compat::es2015::classes; use swc_ecma_transforms_compat::es2015::function_name; use swc_ecma_transforms_compat::es2020::class_properties; use swc_ecma_transforms_module::common_js; use swc_ecma_transforms_optimization::simplify::inlining; use swc_ecma_transforms_proposal::decorators; use swc_ecma_transforms_proposal::decorators::Config; use swc_ecma_transforms_testing::test; use swc_ecma_transforms_testing::test_exec; use swc_ecma_transforms_typescript::strip; use swc_ecma_visit::Fold; fn ts() -> Syntax { Syntax::Typescript(TsConfig { decorators: true, ..Default::default() }) } fn syntax(decorators_before_export: bool) -> Syntax { Syntax::Es(EsConfig { decorators_before_export, decorators: true, class_props: true, ..Default::default() }) } fn tr() -> impl Fold { chain!(decorators(Default::default()), class_properties(),) } fn ts_transform() -> impl Fold { chain!( decorators(Config { legacy: true, ..Default::default() }), simple_strip(), ) } fn simple_strip() -> impl Fold { strip::strip_with_config(strip::Config { no_empty_export: true, ..Default::default() }) } /// Folder for `transformation_*` tests fn transformation() -> impl Fold { chain!(decorators(Default::default()), simple_strip(),) } // transformation_declaration test!( syntax(false), |_| transformation(), transformation_declaration, r#" @dec() class A {} "#, r#" let A = _decorate([dec()], function (_initialize) { class A { constructor() { _initialize(this); } } return { F: A, d: [] }; }); "# ); // transformation_initialize_after_super_multiple test!( syntax(false), |_| transformation(), transformation_initialize_after_super_multiple, r#" @dec class B extends A { constructor() { const foo = () => { super(); }; if (a) { super(); } else { foo(); } while (0) { super(); } super(); } } "#, r#" let B = _decorate([dec], function (_initialize, _A) { class B extends _A { constructor() { const foo = () => { super(); _initialize(this); }; if (a) { super(); _initialize(this); } else { foo(); } while (0) { super(); _initialize(this); } super(); _initialize(this); } } return { F: B, d: [] }; }, A); "# ); // transformation_export_default_anonymous test!( syntax(false), |_| transformation(), transformation_export_default_anonymous, r#" export default @dec() class {} "#, r#" export default _decorate([dec()], function (_initialize) { class _class { constructor() { _initialize(this); } } return { F: _class, d: [] }; }); "# ); // transformation_initialize_after_super_statement test!( syntax(false), |_| transformation(), transformation_initialize_after_super_statement, r#" @dec class B extends A { constructor() { super(); } } "#, r#" let B = _decorate([dec], function (_initialize, _A) { class B extends _A { constructor() { super(); _initialize(this); } } return { F: B, d: [] }; }, A); "# ); // element_descriptors_created_own_method_exec test_exec!( syntax(false), |_| tr(), element_descriptors_created_own_method_exec, r#" function pushElement(e) { return function (c) { c.elements.push(e); return c }; } function method() {} @pushElement({ kind: "method", placement: "own", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: method, } }) class A {} expect(A).not.toHaveProperty("foo"); expect(A.prototype).not.toHaveProperty("foo"); expect(Object.getOwnPropertyDescriptor(new A(), "foo")).toEqual({ enumerable: true, configurable: true, writable: true, value: method, }); "# ); // finishers_return_class_exec test_exec!( syntax(false), |_| tr(), finishers_return_class_exec, r#" class C {} function decorator(el) { return Object.assign(el, { finisher() { return C; }, }); } class A { @decorator foo() {} } expect(A).toBe(C); "# ); // misc_method_name_not_shadow test!( syntax(false), |_| tr(), misc_method_name_not_shadow, r#" var method = 1; @decorator class Foo { method() { return method; } } "#, r#" var method = 1; let Foo = _decorate([decorator], function (_initialize) { class Foo { constructor() { _initialize(this); } } return { F: Foo, d: [{ kind: "method", key: "method", value: function method1() { return method; } }] }; }); "# ); // element_descriptors_original_class_exec test_exec!( syntax(false), |_| tr(), element_descriptors_original_class_exec, r#" var el = null; @(_ => el = _) class A {} expect(el).toEqual(Object.defineProperty({ kind: "class", elements: [] }, Symbol.toStringTag, { value: "Descriptor" })); @(_ => el = _) class B { foo = 2; static bar() {} get baz() {} set baz(x) {} } expect(el.elements).toHaveLength(3); "# ); // duplicated_keys_create_existing_element_with_extras_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_create_existing_element_with_extras_exec, r#" function decorate(el) { el.extras = [{ kind: "method", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: function() {}, } }]; return el; } expect(() => { class A { @decorate bar() {} foo() {} } }).toThrow(TypeError); "# ); // finishers_no_in_extras_exec test_exec!( syntax(false), |_| tr(), finishers_no_in_extras_exec, r#" class C {} function decorator(el) { return Object.assign(el, { extras: [ Object.assign({}, el, { key: "bar", finisher() { return C; } }) ] }); } expect(() => { class A { @decorator foo() {} } }).toThrow(); "# ); // duplicated_keys_computed_keys_same_value test!( syntax(false), |_| tr(), duplicated_keys_computed_keys_same_value, r#" @(_ => desc = _) class Foo { [getKeyI()]() { return 1; } [getKeyJ()]() { return 2; } } "#, r#" let Foo = _decorate([_ => desc = _], function (_initialize) { class Foo { constructor() { _initialize(this); } } return { F: Foo, d: [{ kind: "method", key: getKeyI(), value: function () { return 1; } }, { kind: "method", key: getKeyJ(), value: function () { return 2; } }] }; }); "# ); // transformation_only_decorated test!( syntax(false), |_| transformation(), transformation_only_decorated, r#" class B { foo = 2; bar() {} } "#, r#" class B { bar() {} constructor() { this.foo = 2; } } "# ); // ordering_finishers_exec test_exec!( syntax(false), |_| tr(), ordering_finishers_exec, r#" var log = []; function push(x) { log.push(x); return x; } function logFinisher(x) { return function (el) { return Object.assign(el, { finisher() { push(x); } }); }; } @logFinisher(9) @logFinisher(8) class A { @logFinisher(1) @logFinisher(0) foo; @logFinisher(3) @logFinisher(2) static bar() {} @logFinisher(5) @logFinisher(4) static baz; @logFinisher(7) @logFinisher(6) asd() {} } var numsFrom0to9 = Array.from({ length: 10 }, (_, i) => i); expect(log).toEqual(numsFrom0to9); "# ); // transformation_initiailzer_after_super_bug_8808 test!( syntax(false), |_| transformation(), transformation_initiailzer_after_super_bug_8808, r#" @decorator(parameter) class Sub extends Super { constructor() { super().method(); } } "#, r#" let Sub = _decorate([decorator(parameter)], function (_initialize, _Super) { class Sub extends _Super { constructor() { var _temp; (_temp = super(), _initialize(this), _temp).method(); } } return { F: Sub, d: [] }; }, Super); "# ); // duplicated_keys_original_method_overwritten_no_decorators_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_original_method_overwritten_no_decorators_exec, r#" var el; @(_ => el = _) class A { method() { return 1; } method() { return 2; } } expect(el.elements).toHaveLength(1); expect(A.prototype.method()).toBe(2); "# ); // transformation_arguments test!( syntax(false), |_| transformation(), transformation_arguments, r#" @dec(a, b, ...c) class A { @dec(a, b, ...c) method() {} } "#, r#" let A = _decorate([dec(a, b, ...c)], function (_initialize) { class A { constructor() { _initialize(this); } } return { F: A, d: [{ kind: "method", decorators: [dec(a, b, ...c)], key: "method", value: function method() {} }] }; }); "# ); // duplicated_keys_original_method_overwritten_both_decorated_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_original_method_overwritten_both_decorated_exec, r#" expect(() => { class A { @(el => el) method() { return 1; } @(el => el) method() { return 2; } } }).toThrow(ReferenceError); "# ); // ordering_field_initializers_after_methods_exec test_exec!( // Babel 7.3.0 fails ignore, syntax(false), |_| tr(), ordering_field_initializers_after_methods_exec, r#" var counter = 0; @(x => x) class A { foo = (() => { counter++; expect(typeof this.method).toBe("function"); expect(this.foo).toBeUndefined(); expect(this.bar).toBeUndefined(); return "foo"; })(); method() {} bar = (() => { counter++; expect(typeof this.method).toBe("function"); expect(this.foo).toBe("foo"); expect(this.bar).toBeUndefined(); })(); } expect(counter).toBe(0); new A(); expect(counter).toBe(2); "# ); // misc_to_primitive_exec test_exec!( syntax(false), |_| tr(), misc_to_primitive_exec, r#" let calls = 0; const baz = { [Symbol.toPrimitive]() { calls++; return "baz"; } } function dec() {} @dec class A { [baz]() {} } expect(calls).toBe(1); "# ); // ordering // transformation_initialize_after_super_expression test!( syntax(false), |_| transformation(), transformation_initialize_after_super_expression, r#" @dec class B extends A { constructor() { (0, super()); } } "#, r#" let B = _decorate([dec], function (_initialize, _A) { class B extends _A { constructor() { var _temp; _temp = super(), _initialize(this), _temp; } } return { F: B, d: [] }; }, A); "# ); // element_descriptors_not_reused_field_exec test_exec!( syntax(false), |_| tr(), element_descriptors_not_reused_field_exec, r#" var dec1, dec2; class A { @(_ => dec1 = _) @(_ => dec2 = _) field = {} } expect(dec1).toEqual(dec2); expect(dec1).not.toBe(dec2); expect(dec1.descriptor).toEqual(dec2.descriptor); expect(dec1.descriptor).not.toBe(dec2.descriptor); expect(dec1.initializer).toBe(dec2.initializer); "# ); // transformation_export_default_named test!( syntax(false), |_| transformation(), transformation_export_default_named, r#" export default @dec() class Foo {} "#, r#" let Foo = _decorate([dec()], function (_initialize) { class Foo { constructor() { _initialize(this); } } return { F: Foo, d: [] }; }); export { Foo as default }; "# ); // element_descriptors_original_own_field_exec test_exec!( syntax(false), |_| tr(), element_descriptors_original_own_field_exec, r#" var el = null; var val = {}; class A { @(_ => el = _) foo = val; } expect(el).toEqual(Object.defineProperty({ kind: "field", key: "foo", placement: "own", descriptor: { enumerable: true, configurable: true, writable: true, }, initializer: expect.any(Function), }, Symbol.toStringTag, { value: "Descriptor" })); expect(el.initializer()).toBe(val); "# ); // transformation // ordering_decorators_exec test_exec!( syntax(false), |_| tr(), ordering_decorators_exec, r#" var log = []; function push(x) { log.push(x); return x; } function logDecoratorRun(a, b) { push(a); return function (el) { push(b); return el; }; } @logDecoratorRun(0, 23) @logDecoratorRun(1, 22) class A { @logDecoratorRun(2, 15) @logDecoratorRun(3, 14) [push(4)] = "4"; @logDecoratorRun(5, 17) @logDecoratorRun(6, 16) static [push(7)]() {} @logDecoratorRun(8, 19) @logDecoratorRun(9, 18) static [push(10)] = "10"; @logDecoratorRun(11, 21) @logDecoratorRun(12, 20) [push(13)]() {} } var numsFrom0to23 = Array.from({ length: 24 }, (_, i) => i); expect(log).toEqual(numsFrom0to23); "# ); // transformation_async_generator_method // element_descriptors_default_exec test_exec!( syntax(false), |_| tr(), element_descriptors_default_exec, r#" function decorate(el) { el.descriptor.value = 2; } var Foo; expect(() => { Foo = @(() => void 0) class Foo { @decorate bar() {} } }).not.toThrow(); expect(Foo.prototype.bar).toBe(2); "# ); // element_descriptors_original_prototype_method_exec test_exec!( syntax(false), |_| tr(), element_descriptors_original_prototype_method_exec, r#" var el = null; class A { @(_ => el = _) foo() {} } expect(el).toEqual(Object.defineProperty({ kind: "method", key: "foo", placement: "prototype", descriptor: { enumerable: false, configurable: true, writable: true, value: A.prototype.foo, }, }, Symbol.toStringTag, { value: "Descriptor" })); "# ); // misc_method_name_exec test_exec!( syntax(false), |_| tr(), misc_method_name_exec, r#" function decorator() {} @decorator class Foo { method() {} } expect(Foo.prototype.method.name).toBe("method"); "# ); // transformation_strict_directive test!( ignore, syntax(false), |_| transformation(), transformation_strict_directive, r#" (() => { @dec class Foo { method() {} } }); (() => { @dec class Foo { method() {} } }); "#, r#" () => { let Foo = _decorate([dec], function (_initialize) { class Foo { constructor() { _initialize(this); } } return { F: Foo, d: [{ kind: "method", key: "method", value: function method() {} }] }; }); }; () => { let Foo = _decorate([dec], function (_initialize2) { class Foo { constructor() { _initialize2(this); } } return { F: Foo, d: [{ kind: "method", key: "method", value: function method() {} }] }; }); }; "# ); // element_descriptors_created_static_method_exec test_exec!( syntax(false), |_| tr(), element_descriptors_created_static_method_exec, r#" function pushElement(e) { return function (c) { c.elements.push(e); return c }; } function method() {} @pushElement({ kind: "method", placement: "static", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: method, } }) class A {} expect(A.prototype).not.toHaveProperty("foo"); expect(new A()).not.toHaveProperty("foo"); expect(Object.getOwnPropertyDescriptor(A, "foo")).toEqual({ enumerable: true, configurable: true, writable: true, value: method, }); "# ); // misc_method_name_not_shadow_exec test_exec!( syntax(false), |_| tr(), misc_method_name_not_shadow_exec, r#" function decorator() {} var method = 1; @decorator class Foo { method() { return method; } } expect(new Foo().method()).toBe(1); expect(Foo.prototype.method.name).toBe("method"); "# ); // transformation_class_decorators_yield_await // duplicated_keys_original_method_overwritten_second_decorated_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_original_method_overwritten_second_decorated_exec, r#" expect(() => { class A { @(el => el) method() { return 1; } method() { return 2; } } }).toThrow(ReferenceError); "# ); // duplicated_keys_get_set_both_decorated_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_get_set_both_decorated_exec, r#" function dec(el) { return el } expect(() => { class A { @dec get foo() {} @dec set foo(x) {} } }).toThrow(ReferenceError); "# ); // duplicated_keys_original_method_overwritten_first_decorated_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_original_method_overwritten_first_decorated_exec, r#" expect(() => { class A { method() { return 1; } @(el => el) method() { return 2; } } }).toThrow(ReferenceError); "# ); // element_descriptors_created_prototype_field_exec test_exec!( syntax(false), |_| tr(), element_descriptors_created_prototype_field_exec, r#" function pushElement(e) { return function (c) { c.elements.push(e); return c }; } var value = {}; @pushElement({ kind: "field", placement: "prototype", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, }, initializer() { return value; } }) class A {} expect(A).not.toHaveProperty("foo"); expect(Object.getOwnPropertyDescriptor(A.prototype, "foo")).toEqual({ enumerable: true, configurable: true, writable: true, value: value, }); "# ); // transformation_extends test!( syntax(false), |_| transformation(), transformation_extends, r#" @dec class A extends B {} "#, r#" let A = _decorate([dec], function (_initialize, _B) { class A extends _B { constructor(...args) { super(...args); _initialize(this); } } return { F: A, d: [] }; }, B); "# ); // finishers // transformation_extends_await test!( syntax(false), |_| transformation(), transformation_extends_await, r#" async function g() { @dec class A extends (await B) {} } "#, r#" async function g() { let A = _decorate([dec], function (_initialize, _super) { class A extends _super { constructor(...args) { super(...args); _initialize(this); } } return { F: A, d: [] }; }, await B); } "# ); // transformation_extends_yield test!( syntax(false), |_| transformation(), transformation_extends_yield, r#" function* g() { @dec class A extends (yield B) {} } "#, r#" function* g() { let A = _decorate([dec], function (_initialize, _super) { class A extends _super { constructor(...args) { super(...args); _initialize(this); } } return { F: A, d: [] }; }, (yield B)); } "# ); // element_descriptors_created_static_field_exec test_exec!( syntax(false), |_| tr(), element_descriptors_created_static_field_exec, r#" function pushElement(e) { return function (c) { c.elements.push(e); return c }; } var value = {}; @pushElement({ kind: "field", placement: "static", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, }, initializer() { return value; } }) class A {} expect(A.prototype).not.toHaveProperty("foo"); expect(new A()).not.toHaveProperty("foo"); expect(Object.getOwnPropertyDescriptor(A, "foo")).toEqual({ enumerable: true, configurable: true, writable: true, value: value, }); "# ); // element_descriptors_created_own_field_exec test_exec!( syntax(false), |_| tr(), element_descriptors_created_own_field_exec, r#" function pushElement(e) { return function (c) { c.elements.push(e); return c }; } var value = {}; @pushElement({ kind: "field", placement: "own", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, }, initializer() { return value; } }) class A {} expect(A).not.toHaveProperty("foo"); expect(A.prototype).not.toHaveProperty("foo"); expect(Object.getOwnPropertyDescriptor(new A(), "foo")).toEqual({ enumerable: true, configurable: true, writable: true, value: value, }); "# ); // element_descriptors_not_reused_method_exec test_exec!( syntax(false), |_| tr(), element_descriptors_not_reused_method_exec, r#" var dec1, dec2; class A { @(_ => dec1 = _) @(_ => dec2 = _) fn() {} } expect(dec1).toEqual(dec2); expect(dec1).not.toBe(dec2); expect(dec1.descriptor).toEqual(dec2.descriptor); expect(dec1.descriptor).not.toBe(dec2.descriptor); expect(dec1.descriptor.value).toBe(dec2.descriptor.value); "# ); // element_descriptors_not_reused_class_exec test_exec!( syntax(false), |_| tr(), element_descriptors_not_reused_class_exec, r#" var dec1, dec2; @(_ => dec1 = _) @(_ => dec2 = _) class A {} expect(dec1).toEqual(dec2); expect(dec1).not.toBe(dec2); "# ); // duplicated_keys_computed_keys_same_ast_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_computed_keys_same_ast_exec, r#" var i = 0; function getKey() { return (i++).toString(); } var desc; @(_ => desc = _) class Foo { [getKey()]() { return 1; } [getKey()]() { return 2; } } expect(desc.elements).toHaveLength(2); expect(desc.elements[0].key).toBe("0"); expect(desc.elements[0].descriptor.value()).toBe(1); expect(desc.elements[1].key).toBe("1"); expect(desc.elements[1].descriptor.value()).toBe(2); expect(i).toBe(2); "# ); // transformation_initialize_after_super_bug_8931 test!( syntax(false), |_| transformation(), transformation_initialize_after_super_bug_8931, r#" @dec class B extends A { constructor() { super(); []; } } "#, r#" let B = _decorate([dec], function (_initialize, _A) { class B extends _A { constructor() { super(); _initialize(this); []; } } return { F: B, d: [] }; }, A); "# ); // duplicated_keys // ordering_static_field_initializers_after_methods_exec test_exec!( // Babel 7.3.0 fails ignore, syntax(false), |_| tr(), ordering_static_field_initializers_after_methods_exec, r#" var counter = 0; @(x => x) class A { static foo = (() => { counter++; expect(typeof this.method).toBe("function"); expect(this.foo).toBeUndefined(); expect(this.bar).toBeUndefined(); return "foo"; })(); static method() {} static bar = (() => { counter++; expect(typeof this.method).toBe("function"); expect(this.foo).toBe("foo"); expect(this.bar).toBeUndefined(); })(); } expect(counter).toBe(2); "# ); // element_descriptors_original_static_method_exec test_exec!( syntax(false), |_| tr(), element_descriptors_original_static_method_exec, r#" var el = null; class A { @(_ => el = _) static foo() {} } expect(el).toEqual(Object.defineProperty({ kind: "method", key: "foo", placement: "static", descriptor: { enumerable: false, configurable: true, writable: true, value: A.foo, }, }, Symbol.toStringTag, { value: "Descriptor" })); "# ); // duplicated_keys_extras_duplicated_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_extras_duplicated_exec, r#" function decorate(el) { el.extras = [{ kind: "method", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: function() {}, } }, { kind: "method", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: function() {}, } }]; return el; } expect(() => { class A { @decorate method() {} } }).toThrow(TypeError); "# ); // duplicated_keys_extras_same_as_return_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_extras_same_as_return_exec, r#" function decorate(el) { return { kind: "method", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: function() {}, }, extras: [{ kind: "method", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: function() {}, } }] }; } expect(() => { class A { @decorate method() {} } }).toThrow(TypeError); "# ); // finishers_class_as_parameter_exec test_exec!( syntax(false), |_| tr(), finishers_class_as_parameter_exec, r#" var C; function decorator(el) { return Object.assign(el, { finisher(Class) { C = Class; }, }); } class A { @decorator foo() {} } expect(C).toBe(A); "# ); // duplicated_keys_moved_and_created_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_moved_and_created_exec, r#" var value1, value2 = {}; function makeStatic(el) { el.placement = "static"; return el; } function defineBar(el) { el.extras = [{ key: "bar", kind: "method", placement: "prototype", descriptor: { value: value2, }, }]; return el; } function storeValue(el) { value1 = el.descriptor.value; return el; } class Foo { @defineBar @makeStatic @storeValue bar() {} } expect(Foo.bar).toBe(value1); expect(Foo.prototype.bar).toBe(value2); "# ); // transformation_expression test!( syntax(false), |_| transformation(), transformation_expression, r#" (@dec() class {}); "#, r#" _decorate([dec()], function (_initialize) { class _class { constructor() { _initialize(this); } } return { F: _class, d: [] }; }); "# ); // duplicated_keys_original_method_prototype_and_static_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_original_method_prototype_and_static_exec, r#" var el; @(_ => el = _) class A { method() { return 1; } static method() { return 2; } } expect(el.elements).toHaveLength(2); expect(A.prototype.method()).toBe(1); expect(A.method()).toBe(2); "# ); // element_descriptors // duplicated_keys_computed_keys_same_ast test!( syntax(false), |_| tr(), duplicated_keys_computed_keys_same_ast, r#" @(_ => desc = _) class Foo { [getKey()]() { return 1; } [getKey()]() { return 2; } } "#, r#" let Foo = _decorate([_ => desc = _], function (_initialize) { class Foo { constructor() { _initialize(this); } } return { F: Foo, d: [{ kind: "method", key: getKey(), value: function () { return 1; } }, { kind: "method", key: getKey(), value: function () { return 2; } }] }; }); "# ); // element_descriptors_created_prototype_method_exec test_exec!( syntax(false), |_| tr(), element_descriptors_created_prototype_method_exec, r#" function pushElement(e) { return function (c) { c.elements.push(e); return c }; } function method() {} @pushElement({ kind: "method", placement: "prototype", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: method, } }) class A {} expect(A).not.toHaveProperty("foo"); expect(Object.getOwnPropertyDescriptor(A.prototype, "foo")).toEqual({ enumerable: true, configurable: true, writable: true, value: method, }); "# ); // duplicated_keys_create_existing_element_from_method_decorator_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_create_existing_element_from_method_decorator_exec, r#" function decorate() { return { kind: "method", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: function() {}, } }; } expect(() => { class A { @decorate bar() {} foo() {} } }).toThrow(TypeError); "# ); // element_descriptors_original_static_field_exec test_exec!( syntax(false), |_| tr(), element_descriptors_original_static_field_exec, r#" var el = null; var val = { foo: 2 }; class A { @(_ => el = _) static foo = val; } expect(el).toEqual(Object.defineProperty({ kind: "field", key: "foo", placement: "static", descriptor: { enumerable: true, configurable: true, writable: true, }, initializer: expect.any(Function), }, Symbol.toStringTag, { value: "Descriptor" })); expect(el.initializer()).toBe(val); "# ); // duplicated_keys_coalesce_get_set_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_coalesce_get_set_exec, r#" var el, el1; @(_ => el = _) class A { @(_ => el1 = _) get foo() { return 1; } set foo(x) { return 2; } } expect(el.elements).toHaveLength(1); expect(el1).toEqual(expect.objectContaining({ descriptor: expect.objectContaining({ get: expect.any(Function), set: expect.any(Function) }) })); var desc = Object.getOwnPropertyDescriptor(A.prototype, "foo"); expect(desc.get()).toBe(1); expect(desc.set()).toBe(2); "# ); // misc // transformation_extends_exec test_exec!( syntax(false), |_| tr(), transformation_extends_exec, r#" class B {} @(_ => _) class A extends B {} expect(new A).toBeInstanceOf(A); expect(new A).toBeInstanceOf(B); "# ); // duplicated_keys_create_existing_element_from_class_decorator_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_create_existing_element_from_class_decorator_exec, r#" function pushElement(e) { return function (c) { c.elements.push(e); return c }; } expect(() => { @pushElement({ kind: "method", key: "foo", descriptor: { enumerable: true, configurable: true, writable: true, value: function() {}, } }) class A { foo() {} } }).toThrow(TypeError); "# ); // duplicated_keys_computed_keys_same_value_exec test_exec!( syntax(false), |_| tr(), duplicated_keys_computed_keys_same_value_exec, r#" var i = 0; var j = 0; function getKeyI() { return (i++).toString(); } function getKeyJ() { return (j++).toString(); } var desc; @(_ => desc = _) class Foo { [getKeyI()]() { return 1; } [getKeyJ()]() { return 2; } } expect(desc.elements).toHaveLength(1); expect(desc.elements[0].key).toBe("0"); expect(desc.elements[0].descriptor.value()).toBe(2); expect(i).toBe(1); expect(j).toBe(1); "# ); // element_descriptors_original_own_field_without_initiailzer_exec test_exec!( syntax(false), |_| tr(), element_descriptors_original_own_field_without_initiailzer_exec, r#" var el = null; class A { @(_ => el = _) foo; } expect(el).toEqual(Object.defineProperty({ kind: "field", key: "foo", placement: "own", descriptor: { enumerable: true, configurable: true, writable: true, }, initializer: undefined, }, Symbol.toStringTag, { value: "Descriptor" })); "# ); // legacy_class_constructors_return_new_constructor test_exec!( syntax(true), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_constructors_return_new_constructor_exec, r#" function dec(cls){ return class Child extends cls { child(){} }; } @dec class Parent { parent(){} } expect(typeof Parent.prototype.parent).toBe("function"); expect(typeof Parent.prototype.child).toBe("function"); "# ); // legacy_regression_10264 test!( syntax(true), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), simple_strip() ), legacy_regression_10264, r#" function myDecorator(decoratee) {} @myDecorator export default class {} "#, r#" var _class; function myDecorator(decoratee) { } let _class1 = _class = myDecorator((_class = class { }) || _class) || _class; export { _class1 as default } "# ); //// legacy_regression_7030 //test!( // syntax(false), // |_| tr(r#"{ // "presets": ["env"] //} //"#), // legacy_regression_7030, // r#" //function generateAsyncAction(type) { // type = type.toUpperCase() // const request = createAction(type+'_REQUEST', // undefined, requestMetaCreator // ) // request.request = request // crazy // request.success = createAction(type+'_SUCCESS', undefined, metaCreator) // request.error = createAction(type+'_ERROR', undefined, metaCreator) // request.cancel = createAction(type+'_CANCEL', undefined, metaCreator) // request.progress = createAction(type+'_PROGRESS', undefined, metaCreator) // request.process = createAction(type+'_PROCESS', undefined, metaCreator) // // return request //} // //class A extends B { // constructor(timestamp) { // super() // this.timestamp = timestamp // this.moment = moment(timestamp) // } //} // //"#, // r#" //function _typeof(obj) { if (typeof Symbol === "function" && typeof // Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return // typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && // typeof Symbol === "function" && obj.constructor === Symbol && obj !== // Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); } // //function _classCallCheck(instance, Constructor) { if (!(instance instanceof // Constructor)) { throw new TypeError("Cannot call a class as a function"); } } // //function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) // === "object" || typeof call === "function")) { return call; } return // _assertThisInitialized(self); } // //function _assertThisInitialized(self) { if (self === void 0) { throw new // ReferenceError("this hasn't been initialised - super() hasn't been called"); // } return self; } // //function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? // Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || // Object.getPrototypeOf(o); }; return _getPrototypeOf(o); } // //function _inherits(subClass, superClass) { if (typeof superClass !== // "function" && superClass !== null) { throw new TypeError("Super expression // must either be null or a function"); } subClass.prototype = // Object.create(superClass && superClass.prototype, { constructor: { value: // subClass, writable: true, configurable: true } }); if (superClass) // _setPrototypeOf(subClass, superClass); } // //function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || // function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return // _setPrototypeOf(o, p); } // //function generateAsyncAction(type) { // type = type.toUpperCase(); // var request = createAction(type + '_REQUEST', undefined, // requestMetaCreator); request.request = request; // crazy // // request.success = createAction(type + '_SUCCESS', undefined, metaCreator); // request.error = createAction(type + '_ERROR', undefined, metaCreator); // request.cancel = createAction(type + '_CANCEL', undefined, metaCreator); // request.progress = createAction(type + '_PROGRESS', undefined, metaCreator); // request.process = createAction(type + '_PROCESS', undefined, metaCreator); // return request; //} // //var A = // /*#__PURE__*/ //function (_B) { // "use strict"; // // _inherits(A, _B); // // function A(timestamp) { // var _this; // // _classCallCheck(this, A); // // _this = _possibleConstructorReturn(this, _getPrototypeOf(A).call(this)); // _this.timestamp = timestamp; // _this.moment = moment(timestamp); // return _this; // } // // return A; //}(B); // //"# //); //// legacy_class_static_methods_numeric_props //test_exec!( // syntax(false), // |_| tr(r#"{ // "presets": ["env"], // "plugins": [ // ["proposal-decorators", { "legacy": true }], // [class_properties(), { "loose": true }] // ] //} //"#), // legacy_class_static_methods_numeric_props_exec, // r#" //function dec(target, name, descriptor){ // expect(target).toBeTruthy(); // expect(name).toBe(4); // expect(typeof descriptor).toBe("object"); //} // //class Example { // @dec // static 4() {} //} // //"# //); //// legacy_class_prototype_properties_mutate_descriptor //test_exec!( // syntax(false), // |_| tr(r#"{ // "presets": ["env"], // "plugins": [ // ["proposal-decorators", { "legacy": true }], // [class_properties(), { "loose": true }] // ] //} //"#), // legacy_class_prototype_properties_mutate_descriptor_exec, // r#" //function dec(target, name, descriptor) { // expect(target).toBeTruthy(); // expect(typeof name).toBe("string"); // expect(typeof descriptor).toBe("object"); // // target.decoratedProps = (target.decoratedProps || []).concat([name]); // // let initializer = descriptor.initializer; // Object.assign(descriptor, { // enumerable: name.indexOf('enum') !== -1, // configurable: name.indexOf('conf') !== -1, // writable: name.indexOf('write') !== -1, // initializer: function(...args){ // return '__' + initializer.apply(this, args) + '__'; // }, // }); //} // //function plainDec(target, name, descriptor) { // expect(target).toBeTruthy(); // expect(typeof name).toBe("string"); // expect(typeof descriptor).toBe("object"); // // target.decoratedProps = (target.decoratedProps || []).concat([name]); // // return descriptor; //} // //class Example { // @dec // enumconfwrite = 1; // // @dec // enumconf = 2; // // @dec // enumwrite = 3; // // @dec // enum = 4; // // @dec // confwrite = 5; // // @dec // conf = 6; // // @dec // write = 7; // // @dec // _ = 8; // // @plainDec // plain = 9; //} // //const inst = new Example(); // //expect(Example.prototype).toHaveProperty("decoratedProps"); //expect(inst.decoratedProps).toEqual([ // "enumconfwrite", // "enumconf", // "enumwrite", // "enum", // "confwrite", // "conf", // "write", // "_", // "plain", //]); // //const descs = Object.getOwnPropertyDescriptors(inst); // //expect(descs.enumconfwrite.enumerable).toBeTruthy(); //expect(descs.enumconfwrite.writable).toBeTruthy(); //expect(descs.enumconfwrite.configurable).toBeTruthy(); //expect(inst.enumconfwrite).toBe("__1__"); // //expect(descs.enumconf.enumerable).toBeTruthy(); //expect(descs.enumconf.writable).toBe(false); //expect(descs.enumconf.configurable).toBeTruthy(); //expect(inst.enumconf).toBe("__2__"); // //expect(descs.enumwrite.enumerable).toBeTruthy(); //expect(descs.enumwrite.writable).toBeTruthy(); //expect(descs.enumwrite.configurable).toBe(false); //expect(inst.enumwrite).toBe("__3__"); // //expect(descs.enum.enumerable).toBeTruthy(); //expect(descs.enum.writable).toBe(false); //expect(descs.enum.configurable).toBe(false); //expect(inst.enum).toBe("__4__"); // //expect(descs.confwrite.enumerable).toBe(false); //expect(descs.confwrite.writable).toBeTruthy(); //expect(descs.confwrite.configurable).toBeTruthy(); //expect(inst.confwrite).toBe("__5__"); // //expect(descs.conf.enumerable).toBe(false); //expect(descs.conf.writable).toBe(false); //expect(descs.conf.configurable).toBeTruthy(); //expect(inst.conf).toBe("__6__"); // //expect(descs.write.enumerable).toBe(false); //expect(descs.write.writable).toBeTruthy(); //expect(descs.write.configurable).toBe(false); //expect(inst.write).toBe("__7__"); // //expect(descs._.enumerable).toBe(false); //expect(descs._.writable).toBe(false); //expect(descs._.configurable).toBe(false); //expect(inst._).toBe("__8__"); // //expect(descs.plain.enumerable).toBeTruthy(); //expect(descs.plain.writable).toBeTruthy(); //expect(descs.plain.configurable).toBeTruthy(); //expect(inst.plain).toBe(9); // //"# //); //// legacy_object_properties_mutate_descriptor //test_exec!( // syntax(false), // |_| tr(r#"{ // "presets": ["env"], // "plugins": [ // ["proposal-decorators", { "legacy": true }], // [class_properties(), { "loose": true }] // ] //} //"#), // legacy_object_properties_mutate_descriptor_exec, // r#" //function dec(target, name, descriptor) { // expect(target).toBeTruthy(); // expect(typeof name).toBe("string"); // expect(typeof descriptor).toBe("object"); // // target.decoratedProps = (target.decoratedProps || []).concat([name]); // // let initializer = descriptor.initializer; // Object.assign(descriptor, { // enumerable: name.indexOf("enum") !== -1, // configurable: name.indexOf("conf") !== -1, // writable: name.indexOf("write") !== -1, // initializer: function(...args){ // return '__' + initializer.apply(this, args) + '__'; // }, // }); //} // //const inst = { // @dec // enumconfwrite: 1, // // @dec // enumconf: 2, // // @dec // enumwrite: 3, // // @dec // enum: 4, // // @dec // confwrite: 5, // // @dec // conf: 6, // // @dec // write: 7, // // @dec // _: 8, //}; // // //expect(inst).toHaveProperty("decoratedProps"); //expect(inst.decoratedProps).toEqual([ // "enumconfwrite", // "enumconf", // "enumwrite", // "enum", // "confwrite", // "conf", // "write", // "_", //]); // //const descs = Object.getOwnPropertyDescriptors(inst); // //expect(descs.enumconfwrite.enumerable).toBeTruthy(); //expect(descs.enumconfwrite.writable).toBeTruthy(); //expect(descs.enumconfwrite.configurable).toBeTruthy(); //expect(inst.enumconfwrite).toBe("__1__"); // //expect(descs.enumconf.enumerable).toBeTruthy(); //expect(descs.enumconf.writable).toBe(false); //expect(descs.enumconf.configurable).toBeTruthy(); //expect(inst.enumconf).toBe("__2__"); // //expect(descs.enumwrite.enumerable).toBeTruthy(); //expect(descs.enumwrite.writable).toBeTruthy(); //expect(descs.enumwrite.configurable).toBe(false); //expect(inst.enumwrite).toBe("__3__"); // //expect(descs.enum.enumerable).toBeTruthy(); //expect(descs.enum.writable).toBe(false); //expect(descs.enum.configurable).toBe(false); //expect(inst.enum).toBe("__4__"); // //expect(descs.confwrite.enumerable).toBe(false); //expect(descs.confwrite.writable).toBeTruthy(); //expect(descs.confwrite.configurable).toBeTruthy(); //expect(inst.confwrite).toBe("__5__"); // //expect(descs.conf.enumerable).toBe(false); //expect(descs.conf.writable).toBe(false); //expect(descs.conf.configurable).toBeTruthy(); //expect(inst.conf).toBe("__6__"); // //expect(descs.write.enumerable).toBe(false); //expect(descs.write.writable).toBeTruthy(); //expect(descs.write.configurable).toBe(false); //expect(inst.write).toBe("__7__"); // //expect(descs._.enumerable).toBe(false); //expect(descs._.writable).toBe(false); //expect(descs._.configurable).toBe(false); //expect(inst._).toBe("__8__"); // //"# //); // legacy_decl_to_expression_class_decorators test!( syntax(false), |_| decorators(Config { legacy: true, ..Default::default() }), legacy_decl_to_expression_class_decorators, r#" export default @dec class A {} @dec class B {} "#, r#" var _class, _class1; export default _class = dec((_class = class A { }) || _class) || _class; let B = _class1 = dec((_class1 = class B { }) || _class1) || _class1; "# ); // legacy_class_prototype_methods_numeric_props test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_prototype_methods_numeric_props_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(name).toBe(4); expect(typeof descriptor).toBe("object"); } class Example { @dec 4() {}; } "# ); // legacy_class_static_properties_mutate_descriptor test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_static_properties_mutate_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let initializer = descriptor.initializer; Object.assign(descriptor, { enumerable: name.indexOf("enum") !== -1, configurable: name.indexOf("conf") !== -1, writable: name.indexOf("write") !== -1, initializer: function(...args){ return '__' + initializer.apply(this, args) + '__'; }, }); } class Example { @dec static enumconfwrite = 1; @dec static enumconf = 2; @dec static enumwrite = 3; @dec static enum = 4; @dec static confwrite = 5; @dec static conf = 6; @dec static write = 7; @dec static _ = 8; } const inst = new Example(); expect(Example).toHaveProperty("decoratedProps"); expect(Example.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(Example); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(Example.enumconfwrite).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(Example.enumconf).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(Example.enumwrite).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(Example.enum).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(Example.confwrite).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(Example.conf).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(Example.write).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(Example._).toBe("__8__"); "# ); // legacy_class_static_methods_string_props test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_static_methods_string_props_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(name).toBe("str"); expect(typeof descriptor).toBe("object"); } class Example { @dec static "str"() {}; } "# ); // legacy_class_prototype_properties_string_literal_properties test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_prototype_properties_string_literal_properties_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); return descriptor; } class Example { @dec "a-prop"; } let inst = new Example(); expect(Example.prototype).toHaveProperty("decoratedProps"); expect(inst.decoratedProps).toEqual([ "a-prop" ]); expect(inst).toHaveProperty("a-prop"); expect(inst["a-prop"]).toBeUndefined(); // const descs = Object.getOwnPropertyDescriptors(inst); // expect(descs["a-prop"].enumerable).toBeTruthy(); // expect(descs["a-prop"].writable).toBeTruthy(); // expect(descs["a-prop"].configurable).toBeTruthy(); "# ); // legacy_class_prototype_methods_mutate_descriptor test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_prototype_methods_mutate_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let value = descriptor.value; Object.assign(descriptor, { enumerable: name.indexOf("enum") !== -1, configurable: name.indexOf("conf") !== -1, writable: name.indexOf("write") !== -1, value: function(...args) { return "__" + value.apply(this, args) + "__"; }, }); } class Example { @dec enumconfwrite(){ return 1; } @dec enumconf(){ return 2; } @dec enumwrite(){ return 3; } @dec enum(){ return 4; } @dec confwrite(){ return 5; } @dec conf(){ return 6; } @dec write(){ return 7; } @dec _(){ return 8; } } expect(Example.prototype).toHaveProperty('decoratedProps'); expect(Example.prototype.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const inst = new Example(); const descs = Object.getOwnPropertyDescriptors(Example.prototype); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(inst.enumconfwrite()).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(inst.enumconf()).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(inst.enumwrite()).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(inst.enum()).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(inst.confwrite()).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(inst.conf()).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(inst.write()).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(inst._()).toBe("__8__"); "# ); // legacy_object_properties_numeric_props test_exec!( // Legacy decorator for object literals ignore, syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_properties_numeric_props_exec, r#" function dec(target, name, descriptor){ expect(target).toBeTruthy(); expect(name).toBe(4); expect(typeof descriptor).toBe("object"); } const inst = { @dec 4: 1 }; "# ); // legacy_decl_to_expression_method_decorators test!( syntax(false), |_| decorators(Config { legacy: true, ..Default::default() }), legacy_decl_to_expression_method_decorators, r#" export default class A { @dec foo() {} } class B { @dec foo() {} } "#, r#" var _class, _class1; let A = ((_class = class A{ foo() { } }) || _class, _applyDecoratedDescriptor(_class.prototype, 'foo', [dec], Object.getOwnPropertyDescriptor(_class.prototype, 'foo'), _class.prototype), _class); let B = ((_class1 = class B{ foo() { } }) || _class1, _applyDecoratedDescriptor(_class1.prototype, 'foo', [dec], Object.getOwnPropertyDescriptor(_class1.prototype, 'foo'), _class1.prototype), _class1); export { A as default } "# ); // legacy_class_prototype_properties_return_descriptor test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_prototype_properties_return_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let initializer = descriptor.initializer; return { enumerable: name.indexOf('enum') !== -1, configurable: name.indexOf('conf') !== -1, writable: name.indexOf('write') !== -1, initializer: function(...args){ return '__' + initializer.apply(this, args) + '__'; }, }; } class Example { @dec enumconfwrite = 1; @dec enumconf = 2; @dec enumwrite = 3; @dec enum = 4; @dec confwrite = 5; @dec conf = 6; @dec write = 7; @dec _ = 8; } const inst = new Example(); expect(Example.prototype).toHaveProperty("decoratedProps"); expect(inst.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(inst); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(inst.enumconfwrite).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(inst.enumconf).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(inst.enumwrite).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(inst.enum).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(inst.confwrite).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(inst.conf).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(inst.write).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(inst._).toBe("__8__"); "# ); // legacy_object_properties_string_props test_exec!( // Legacy decorator for object literals ignore, syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_properties_string_props_exec, r#" function dec(target, name, descriptor){ expect(target).toBeTruthy(); expect(name).toBe("str"); expect(typeof descriptor).toBe("object"); } const inst = { @dec "str": 1 }; "# ); // legacy_object_properties_return_descriptor test_exec!( // Legacy decorator for object literals ignore, syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_properties_return_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let initializer = descriptor.initializer; return { enumerable: name.indexOf('enum') !== -1, configurable: name.indexOf('conf') !== -1, writable: name.indexOf('write') !== -1, initializer: function(...args){ return '__' + initializer.apply(this, args) + '__'; }, }; } const inst = { @dec enumconfwrite: 1, @dec enumconf: 2, @dec enumwrite: 3, @dec enum: 4, @dec confwrite: 5, @dec conf: 6, @dec write: 7, @dec _: 8, }; expect(inst).toHaveProperty("decoratedProps"); expect(inst.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(inst); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(inst.enumconfwrite).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(inst.enumconf).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(inst.enumwrite).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(inst.enum).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(inst.confwrite).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(inst.conf).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(inst.write).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(inst._).toBe("__8__"); "# ); // legacy_class_prototype_methods_string_props test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_prototype_methods_string_props_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(name).toBe("str"); expect(typeof descriptor).toBe("object"); } class Example { @dec "str"() {}; } "# ); // legacy_regression_8041 test!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_regression_8041, r#" export default class { @foo bar() {} } "#, r#" var _class; let _class1 = ((_class = class _class2 { bar() { } }) || _class, _applyDecoratedDescriptor(_class.prototype, "bar", [ foo ], Object.getOwnPropertyDescriptor(_class.prototype, "bar"), _class.prototype), _class); export { _class1 as default }; "# ); // legacy_class_prototype_methods_return_descriptor test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_prototype_methods_return_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let value = descriptor.value; return { enumerable: name.indexOf('enum') !== -1, configurable: name.indexOf('conf') !== -1, writable: name.indexOf('write') !== -1, value: function(...args){ return '__' + value.apply(this, args) + '__'; }, }; } class Example { @dec enumconfwrite() { return 1; } @dec enumconf() { return 2; } @dec enumwrite() { return 3; } @dec enum() { return 4; } @dec confwrite() { return 5; } @dec conf() { return 6; } @dec write() { return 7; } @dec _() { return 8; } } expect(Example.prototype).toHaveProperty('decoratedProps'); expect(Example.prototype.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const inst = new Example(); const descs = Object.getOwnPropertyDescriptors(Example.prototype); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(inst.enumconfwrite()).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(inst.enumconf()).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(inst.enumwrite()).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(inst.enum()).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(inst.confwrite()).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(inst.conf()).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(inst.write()).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(inst._()).toBe("__8__"); "# ); // legacy_object_ordering_reverse_order test_exec!( // Legacy decorator for object literals ignore, syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_ordering_reverse_order_exec, r#" const calls = []; function dec(id){ return function(){ calls.push(id); }; } const obj = { @dec(2) @dec(1) method1(){}, @dec(4) @dec(3) prop1: 1, @dec(6) @dec(5) method2(){}, @dec(8) @dec(7) prop2: 2, } expect(calls).toEqual([1, 2, 3, 4, 5, 6, 7, 8]); "# ); // legacy_object_methods_numeric_props test_exec!( // Legacy decorator for object literals ignore, syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_methods_numeric_props_exec, r#" function dec(target, name, descriptor){ expect(target).toBeTruthy(); expect(name).toBe(4); expect(typeof descriptor).toBe("object"); } const inst = { @dec 4(){ } }; "# ); // legacy_class_static_properties_return_descriptor test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_static_properties_return_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let initializer = descriptor.initializer; return { enumerable: name.indexOf('enum') !== -1, configurable: name.indexOf('conf') !== -1, writable: name.indexOf('write') !== -1, initializer: function(...args){ return '__' + initializer.apply(this, args) + '__'; }, }; } class Example { @dec static enumconfwrite = 1; @dec static enumconf = 2; @dec static enumwrite = 3; @dec static enum = 4; @dec static confwrite = 5; @dec static conf = 6; @dec static write = 7; @dec static _ = 8; } const inst = new Example(); expect(Example).toHaveProperty("decoratedProps"); expect(Example.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(Example); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(Example.enumconfwrite).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(Example.enumconf).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(Example.enumwrite).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(Example.enum).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(Example.confwrite).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable); expect(Example.conf).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(Example.write).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(Example._).toBe("__8__"); "# ); // legacy_class_export_default test_exec!( // We wrap exec tests in a function like it('should work', function(){ // // .. code // }), but it prevents swc_ecma_parser from parsing the code // below correctly. ignore, syntax(true), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_export_default_exec, r#" const calls = []; function foo(target) { calls.push(target.name); } @foo export default class Foo { bar() { class Baz {} } } expect(calls).toEqual(["Foo"]); "# ); // legacy_class_ordering_reverse_order test_exec!( syntax(true), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_ordering_reverse_order_exec, r#" const calls = []; function dec(id){ return function(){ calls.push(id); }; } @dec(10) @dec(9) class Example2 { @dec(2) @dec(1) method1() {}; @dec(4) @dec(3) prop1 = 1; @dec(6) @dec(5) method2() {}; @dec(8) @dec(7) prop2 = 2; } expect(calls).toEqual([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]); "# ); // legacy_object_methods_mutate_descriptor test_exec!( // Legacy decorator for object literals ignore, syntax(true), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_methods_mutate_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let value = descriptor.value; Object.assign(descriptor, { enumerable: name.indexOf("enum") !== -1, configurable: name.indexOf("conf") !== -1, writable: name.indexOf("write") !== -1, value: function(...args) { return "__" + value.apply(this, args) + "__"; }, }); } const inst = { @dec enumconfwrite(){ return 1; }, @dec enumconf(){ return 2; }, @dec enumwrite(){ return 3; }, @dec enum(){ return 4; }, @dec confwrite(){ return 5; }, @dec conf(){ return 6; }, @dec write(){ return 7; }, @dec _(){ return 8; }, } expect(inst).toHaveProperty('decoratedProps'); expect(inst.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(inst); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(inst.enumconfwrite()).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(inst.enumconf()).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(inst.enumwrite()).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(inst.enum()).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable); expect(inst.confwrite()).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(inst.conf()).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(inst.write()).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(inst._()).toBe("__8__"); "# ); // legacy_class_static_methods_return_descriptor test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_static_methods_return_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let value = descriptor.value; return { enumerable: name.indexOf('enum') !== -1, configurable: name.indexOf('conf') !== -1, writable: name.indexOf('write') !== -1, value: function(...args){ return '__' + value.apply(this, args) + '__'; }, }; } class Example { @dec static enumconfwrite() { return 1; } @dec static enumconf() { return 2; } @dec static enumwrite() { return 3; } @dec static enum() { return 4; } @dec static confwrite() { return 5; } @dec static conf() { return 6; } @dec static write() { return 7; } @dec static _() { return 8; } } expect(Example).toHaveProperty("decoratedProps"); expect(Example.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(Example); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(Example.enumconfwrite()).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(Example.enumconf()).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(Example.enumwrite()).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(Example.enum()).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable); expect(Example.confwrite()).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(Example.conf()).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(Example.write()).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(Example._()).toBe("__8__"); "# ); // legacy_object_methods_return_descriptor test_exec!( // Legacy decorator for object literals ignore, syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_methods_return_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let value = descriptor.value; return { enumerable: name.indexOf('enum') !== -1, configurable: name.indexOf('conf') !== -1, writable: name.indexOf('write') !== -1, value: function(...args){ return '__' + value.apply(this, args) + '__'; }, }; } const inst = { @dec enumconfwrite(){ return 1; }, @dec enumconf(){ return 2; }, @dec enumwrite(){ return 3; }, @dec enum(){ return 4; }, @dec confwrite(){ return 5; }, @dec conf(){ return 6; }, @dec write(){ return 7; }, @dec _(){ return 8; }, } expect(inst).toHaveProperty('decoratedProps'); expect(inst.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(inst); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(inst.enumconfwrite()).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(inst.enumconf()).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(inst.enumwrite()).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(inst.enum()).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(inst.confwrite()).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(inst.conf()).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(inst.write()).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(inst._()).toBe("__8__"); "# ); // legacy_object_methods_string_props test_exec!( // Legacy decorator for object literals ignore, syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_object_methods_string_props_exec, r#" function dec(target, name, descriptor){ expect(target).toBeTruthy(); expect(name).toBe("str"); expect(typeof descriptor).toBe("object"); } const inst = { @dec "str"(){ } }; "# ); // legacy_class_prototype_properties_child_classes_properties test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_prototype_properties_child_classes_properties_exec, r#" function dec(target, name, descriptor){ expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let initializer = descriptor.initializer; descriptor.initializer = function(...args){ return "__" + initializer.apply(this, args) + "__"; }; } class Base { @dec prop2 = 4; } class Example extends Base { @dec prop = 3; } let inst = new Example(); expect(inst.prop).toBe("__3__"); expect(inst.prop2).toBe("__4__"); "# ); // legacy_class_static_methods_mutate_descriptor test_exec!( syntax(false), |_| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), ), legacy_class_static_methods_mutate_descriptor_exec, r#" function dec(target, name, descriptor) { expect(target).toBeTruthy(); expect(typeof name).toBe("string"); expect(typeof descriptor).toBe("object"); target.decoratedProps = (target.decoratedProps || []).concat([name]); let value = descriptor.value; Object.assign(descriptor, { enumerable: name.indexOf("enum") !== -1, configurable: name.indexOf("conf") !== -1, writable: name.indexOf("write") !== -1, value: function(...args) { return "__" + value.apply(this, args) + "__"; }, }); } class Example { @dec static enumconfwrite(){ return 1; } @dec static enumconf(){ return 2; } @dec static enumwrite(){ return 3; } @dec static enum(){ return 4; } @dec static confwrite(){ return 5; } @dec static conf(){ return 6; } @dec static write(){ return 7; } @dec static _(){ return 8; } } expect(Example).toHaveProperty("decoratedProps"); expect(Example.decoratedProps).toEqual([ "enumconfwrite", "enumconf", "enumwrite", "enum", "confwrite", "conf", "write", "_", ]); const descs = Object.getOwnPropertyDescriptors(Example); expect(descs.enumconfwrite.enumerable).toBeTruthy(); expect(descs.enumconfwrite.writable).toBeTruthy(); expect(descs.enumconfwrite.configurable).toBeTruthy(); expect(Example.enumconfwrite()).toBe("__1__"); expect(descs.enumconf.enumerable).toBeTruthy(); expect(descs.enumconf.writable).toBe(false); expect(descs.enumconf.configurable).toBeTruthy(); expect(Example.enumconf()).toBe("__2__"); expect(descs.enumwrite.enumerable).toBeTruthy(); expect(descs.enumwrite.writable).toBeTruthy(); expect(descs.enumwrite.configurable).toBe(false); expect(Example.enumwrite()).toBe("__3__"); expect(descs.enum.enumerable).toBeTruthy(); expect(descs.enum.writable).toBe(false); expect(descs.enum.configurable).toBe(false); expect(Example.enum()).toBe("__4__"); expect(descs.confwrite.enumerable).toBe(false); expect(descs.confwrite.writable).toBeTruthy(); expect(descs.confwrite.configurable).toBeTruthy(); expect(Example.confwrite()).toBe("__5__"); expect(descs.conf.enumerable).toBe(false); expect(descs.conf.writable).toBe(false); expect(descs.conf.configurable).toBeTruthy(); expect(Example.conf()).toBe("__6__"); expect(descs.write.enumerable).toBe(false); expect(descs.write.writable).toBeTruthy(); expect(descs.write.configurable).toBe(false); expect(Example.write()).toBe("__7__"); expect(descs._.enumerable).toBe(false); expect(descs._.writable).toBe(false); expect(descs._.configurable).toBe(false); expect(Example._()).toBe("__8__"); "# ); // legacy_regression_8512 test_exec!( syntax(false), |_| decorators(Config { legacy: true, ..Default::default() }), legacy_regression_8512_exec, r#" function dec(Class, key, desc) { return desc; } class Foo { @dec get bar() {} } "# ); test!( syntax(false), |_| decorators(Config { legacy: true, ..Default::default() }), issue_591_1, " export class Example { @foo() bar = '1'; @foo() baz = '2'; }", "var _class, _descriptor, _descriptor1; var _dec = foo(), _dec1 = foo(); export let Example = ((_class = class Example{ constructor(){ _initializerDefineProperty(this, 'bar', _descriptor, this); _initializerDefineProperty(this, 'baz', _descriptor1, this); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, 'bar', [_dec], { configurable: true, enumerable: true, writable: true, initializer: function() { return '1'; } }), _descriptor1 = _applyDecoratedDescriptor(_class.prototype, 'baz', [_dec1], { configurable: true, enumerable: true, writable: true, initializer: function() { return '2'; } }), _class); " ); test!( syntax(false), |_| decorators(Config { legacy: true, ..Default::default() }), issue_591_2, "class Example { @foo() bar = '1'; @foo() baz = '2'; }", "var _class, _descriptor, _descriptor1; var _dec = foo(), _dec1 = foo(); let Example = ((_class = class Example{ constructor(){ _initializerDefineProperty(this, 'bar', _descriptor, this); _initializerDefineProperty(this, 'baz', _descriptor1, this); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, 'bar', [_dec], { configurable: true, enumerable: true, writable: true, initializer: function() { return '1'; } }), _descriptor1 = _applyDecoratedDescriptor(_class.prototype, 'baz', [_dec1], { configurable: true, enumerable: true, writable: true, initializer: function() { return '2'; } }), _class); " ); test!( Syntax::Typescript(TsConfig { decorators: true, ..Default::default() }), |_| chain!( decorators(Config { legacy: true, ..Default::default() }), simple_strip() ), issue_823_1, "import {Debounce} from 'lodash-decorators'; class Person { private static debounceTime: number = 500 as const; @Debounce(Person.debounceTime) save() { console.log('Hello World!'); } } const p = new Person(); p.save();", "var _class; var _class1, _dec; import { Debounce } from 'lodash-decorators'; let Person = ((_class1 = (_class = class Person { save() { console.log('Hello World!'); } }, _class.debounceTime = 500, _class)) || _class1, _dec = Debounce(_class1.debounceTime), \ _applyDecoratedDescriptor(_class1.prototype, 'save', [ _dec ], Object.getOwnPropertyDescriptor(_class1.prototype, 'save'), _class1.prototype), _class1); const p = new Person(); p.save();" ); test!( Syntax::Typescript(TsConfig { decorators: true, ..Default::default() }), |_| chain!( decorators(Config { legacy: true, ..Default::default() }), simple_strip(), // classes(Some(t.comments.clone())), ), issue_823_2, "import {Debounce} from 'lodash-decorators'; class Person { private static debounceTime: number = 500 as const; @Debounce(Person.debounceTime) save() { console.log('Hello World!'); } } const p = new Person(); p.save();", "var _class; var _class1, _dec; import { Debounce } from 'lodash-decorators'; let Person = ((_class1 = (_class = class Person { save() { console.log('Hello World!'); } }, _class.debounceTime = 500, _class)) || _class1, _dec = Debounce(_class1.debounceTime), \ _applyDecoratedDescriptor(_class1.prototype, 'save', [ _dec ], Object.getOwnPropertyDescriptor(_class1.prototype, 'save'), _class1.prototype), _class1); const p = new Person(); p.save(); " ); test!( Syntax::Typescript(TsConfig { decorators: true, ..Default::default() }), |t| chain!( decorators(Config { legacy: true, ..Default::default() }), simple_strip(), classes(Some(t.comments.clone())), ), issue_823_3, "import {Debounce} from 'lodash-decorators'; class Person { private static debounceTime: number = 500 as const; @Debounce(Person.debounceTime) save() { console.log('Hello World!'); } } const p = new Person(); p.save();", "var _class; var _class1, _dec; import { Debounce } from 'lodash-decorators'; let Person = ((_class1 = (_class = function() { 'use strict'; function Person() { _classCallCheck(this, Person); } _createClass(Person, [ { key: 'save', value: function save() { console.log('Hello World!'); } } ]); return Person; }(), _class.debounceTime = 500, _class)) || _class1, _dec = Debounce(_class1.debounceTime), \ _applyDecoratedDescriptor(_class1.prototype, 'save', [ _dec ], Object.getOwnPropertyDescriptor(_class1.prototype, 'save'), _class1.prototype), _class1); const p = new Person(); p.save();" ); test!( ts(), |_| ts_transform(), issue_862_1, " @Entity() export class Product extends TimestampedEntity { @PrimaryGeneratedColumn('uuid') public id!: string; @Column() public price!: number; @Column({ enum: ProductType }) public type!: ProductType; @Column() public productEntityId!: string; /* ANCHOR: Relations ------------------------------------------------------ */ @OneToMany(() => Order, (order) => order.product) public orders!: Order[]; @OneToMany(() => Discount, (discount) => discount.product) public discounts!: Discount[]; } ", "var _class, _descriptor, _descriptor1, _descriptor2, _descriptor3, _descriptor4, \ _descriptor5; var _dec = PrimaryGeneratedColumn('uuid'), _dec1 = Column(), _dec2 = Column({ enum: ProductType }), _dec3 = Column(), _dec4 = OneToMany(()=>Order , (order)=>order.product ), _dec5 = OneToMany(()=>Discount , (discount)=>discount.product ), _dec6 = Entity(); export let Product = _class = _dec6(((_class = class Product extends TimestampedEntity { constructor(...args){ super(...args); _initializerDefineProperty(this, 'id', _descriptor, this); _initializerDefineProperty(this, 'price', _descriptor1, this); _initializerDefineProperty(this, 'type', _descriptor2, this); _initializerDefineProperty(this, 'productEntityId', _descriptor3, this); _initializerDefineProperty(this, 'orders', _descriptor4, this); _initializerDefineProperty(this, 'discounts', _descriptor5, this); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, 'id', [ _dec ], { configurable: true, enumerable: true, writable: true, initializer: void 0, }), _descriptor1 = _applyDecoratedDescriptor(_class.prototype, 'price', [ _dec1 ], { configurable: true, enumerable: true, writable: true, initializer: void 0, }), _descriptor2 = _applyDecoratedDescriptor(_class.prototype, 'type', [ _dec2 ], { configurable: true, enumerable: true, writable: true, initializer: void 0, }), _descriptor3 = _applyDecoratedDescriptor(_class.prototype, 'productEntityId', [ _dec3 ], { configurable: true, enumerable: true, writable: true, initializer: void 0, }), _descriptor4 = _applyDecoratedDescriptor(_class.prototype, 'orders', [ _dec4 ], { configurable: true, enumerable: true, writable: true, initializer: void 0, }), _descriptor5 = _applyDecoratedDescriptor(_class.prototype, 'discounts', [ _dec5 ], { configurable: true, enumerable: true, writable: true, initializer: void 0 }), _class)) || _class; " ); test!( ts(), |_| ts_transform(), issue_862_2, "@Entity() export class Product extends TimestampedEntity { @PrimaryGeneratedColumn('uuid') public id!: string; } ", "var _class, _descriptor; var _dec = PrimaryGeneratedColumn(\"uuid\"), _dec1 = Entity(); export let Product = _class = _dec1(((_class = class Product extends TimestampedEntity { constructor(...args){ super(...args); _initializerDefineProperty(this, 'id', _descriptor, this); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, 'id', [ _dec ], { configurable: true, enumerable: true, writable: true, initializer: void 0 }), _class)) || _class; " ); test_exec!( ts(), |_| ts_transform(), issue_862_3, "var log: number[] = []; function push(x: number) { log.push(x); return x; } function saveOrder(x: number) { return function (el: any) { log.push(x); return el; }; } @saveOrder(1) class Product { @saveOrder(0) public id!: string; } var nums = Array.from({ length: 2 }, (_, i) => i); expect(log).toEqual(nums)" ); test!( ts(), |_| ts_transform(), issue_863_1, "class ProductController { @bar() findById( @foo() id: number ) { // ... } }", " var _class, _dec; let ProductController = ((_class = class ProductController { findById(id) { } }) || _class, foo()(_class.prototype, 'findById', 0), _dec = bar(), \ _applyDecoratedDescriptor(_class.prototype, 'findById', [ _dec ], Object.getOwnPropertyDescriptor(_class.prototype, 'findById'), _class.prototype), _class);" ); test_exec!( ts(), |_| ts_transform(), issue_863_2, "const logs: number[] = []; function foo() { return function (target: any, member: any, ix: any) { logs.push(0); }; } function bar() { return function (target: any, member: any, ix: any) { logs.push(1); }; } class ProductController { findById( @foo() @bar() id: number ) { // ... } } expect(logs).toEqual([0, 1]) const c = new ProductController(); c.findById(100); " ); test!( ts(), |_| chain!( inlining::inlining(inlining::Config {}), decorators(Config { legacy: true, ..Default::default() }), simple_strip(), ), issue_879_1, "export default class X { @networked prop: string = ''; }", "var _class, _descriptor; let X = ((_class = class X { constructor(){ _initializerDefineProperty(this, 'prop', _descriptor, this); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, 'prop', [ networked ], { configurable: true, enumerable: true, writable: true, initializer: function() { return ''; } }), _class); export { X as default }; " ); test!( ts(), |_| decorators(Config { legacy: true, emit_metadata: true, }), legacy_metadata_generics_base, "@Decorate class MyClass { constructor( private generic: Generic, generic2: Generic ) {} @Run method( generic: Inter, @Arg() generic2: InterGen ) {} }", r#" var _class, _dec, _dec1, _dec2; var _dec3 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Generic === "undefined" ? Object : Generic, typeof Generic === "undefined" ? Object : Generic ]), _dec4 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function); let MyClass = _class = Decorate(_class = _dec4(_class = _dec3(((_class = class MyClass { constructor(private generic: Generic, generic2: Generic){ } method(generic: Inter, generic2: InterGen) { } }) || _class, _dec = function(target, key) { return Arg()(target, key, 1); }, _dec1 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec2 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Inter === "undefined" ? Object : Inter, typeof InterGen === "undefined" ? Object : InterGen ]), _applyDecoratedDescriptor(_class.prototype, "method", [ Run, _dec, _dec1, _dec2 ], Object.getOwnPropertyDescriptor(_class.prototype, "method"), _class.prototype), _class)) || _class) || _class) || _class; "# ); test!( ts(), |_| decorators(Config { legacy: true, emit_metadata: true, }), legacy_metadata_generics_1, "@Decorate class MyClass { constructor( private generic: Generic, generic2: Generic ) {} }", r#"var _class; var _dec = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Generic === "undefined" ? Object : Generic, typeof Generic === "undefined" ? Object : Generic ]), _dec1 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function); let MyClass = _class = Decorate(_class = _dec1(_class = _dec((_class = class MyClass { constructor(private generic: Generic, generic2: Generic){ } }) || _class) || _class) || _class) || _class; "# ); test!( ts(), |_| decorators(Config { legacy: true, emit_metadata: true, }), legacy_metadata_nest_injection, "import { AppService } from './app.service'; import { Session, Res } from '@nestjs/common'; import * as express from 'express'; @Controller() export class AppController { constructor(private appService: AppService) {} @Inject() appService: AppService; @Inject() private appService2: AppService; @Get() getHello(): string { return this.appService.getHello(); } @Get('/callback') callback(@Res() res: express.Response, @Session() session: express.Express.Session) { const token = await this.getToken(code) const user = await this.getUserInfo(token.access_token) session.oauth2Token = token session.user = user return res.redirect(state.returnUrl ?? '/') } }", r#"var _class, _descriptor, _descriptor1, _dec, _dec1, _dec2, _dec3, _dec4, _dec5, _dec6, _dec7; import { AppService } from "./app.service"; import { Session, Res } from "@nestjs/common"; import * as express from "express"; var _dec8 = Inject(), _dec9 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", typeof AppService === "undefined" ? Object : AppService), _dec10 = Inject(), _dec11 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", typeof AppService === "undefined" ? Object : AppService), _dec12 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof AppService === "undefined" ? Object : AppService ]), _dec13 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec14 = Controller(); export let AppController = _class = _dec14(_class = _dec13(_class = _dec12(((_class = class AppController { constructor(private appService: AppService){ _initializerDefineProperty(this, "appService", _descriptor, this); _initializerDefineProperty(this, "appService2", _descriptor1, this); } getHello(): string { return this.appService.getHello(); } callback(res: express.Response, session: express.Express.Session) { const token = await this.getToken(code); const user = await this.getUserInfo(token.access_token); session.oauth2Token = token; session.user = user; return res.redirect(state.returnUrl ?? "/"); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, "appService", [ _dec8, _dec9 ], { configurable: true, enumerable: true, writable: true, initializer: void 0, }), _descriptor1 = _applyDecoratedDescriptor(_class.prototype, "appService2", [ _dec10, _dec11 ], { configurable: true, enumerable: true, writable: true, initializer: void 0, }), _dec = Get(), _dec1 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec2 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", []), _applyDecoratedDescriptor(_class.prototype, "getHello", [ _dec, _dec1, _dec2 ], Object.getOwnPropertyDescriptor(_class.prototype, "getHello"), _class.prototype), _dec3 = Get("/callback"), _dec4 = function(target, key) { return Res()(target, key, 0); }, _dec5 = function(target, key) { return Session()(target, key, 1); }, _dec6 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec7 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof express === "undefined" || typeof express.Response === "undefined" ? Object : express.Response, typeof express === "undefined" || typeof express.Express === "undefined" || typeof express.Express.Session === "undefined" ? Object : express.Express.Session ]), _applyDecoratedDescriptor(_class.prototype, "callback", [ _dec3, _dec4, _dec5, _dec6, _dec7 ], Object.getOwnPropertyDescriptor(_class.prototype, "callback"), _class.prototype), _class)) || _class) || _class) || _class;"# ); test!( ts(), |_| decorators(Config { legacy: true, emit_metadata: true, }), legacy_metadata_parameter_decorated_types, "class Injected {} class MyClass { constructor(@inject() parameter: Injected) {} } class MyOtherClass { constructor( @inject() private readonly parameter: Injected, @inject('KIND') otherParam: Injected ) {} methodUndecorated(@demo() param: string, otherParam) {} @decorate('named') method(@inject() param: Injected, @arg() schema: Schema) {} } @Decorate class DecoratedClass { constructor( @inject() private readonly module: Injected, @inject() otherModule: Injected ) {} @decorate('example') method(@inject() param: string) {} }", r##" var _class, _class1, _dec, _dec1, _dec2, _dec3, _dec4, _dec5, _dec6, _dec7, _class2, _dec8, _dec9, _dec10, _dec11; class Injected { } var _dec12 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Injected === "undefined" ? Object : Injected ]), _dec13 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec14 = function(target, key) { return inject()(target, undefined, 0); }; let MyClass = _class = _dec14(_class = _dec13(_class = _dec12((_class = class MyClass { constructor(parameter: Injected){ } }) || _class) || _class) || _class) || _class; var _dec15 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Injected === "undefined" ? Object : Injected, typeof Injected === "undefined" ? Object : Injected ]), _dec16 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec17 = function(target, key) { return inject("KIND")(target, undefined, 1); }, _dec18 = function(target, key) { return inject()(target, undefined, 0); }; let MyOtherClass = _class1 = _dec18(_class1 = _dec17(_class1 = _dec16(_class1 = _dec15(((_class1 = class MyOtherClass { constructor(private readonly parameter: Injected, otherParam: Injected){ } methodUndecorated(param: string, otherParam) { } method(param: Injected, schema: Schema) { } }) || _class1, _dec = function(target, key) { return demo()(target, key, 0); }, _dec1 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec2 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ String, void 0 ]), _applyDecoratedDescriptor(_class1.prototype, "methodUndecorated", [ _dec, _dec1, _dec2 ], Object.getOwnPropertyDescriptor(_class1.prototype, "methodUndecorated"), _class1.prototype), _dec3 = decorate("named"), _dec4 = function(target, key) { return inject()(target, key, 0); }, _dec5 = function(target, key) { return arg()(target, key, 1); }, _dec6 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec7 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Injected === "undefined" ? Object : Injected, typeof Schema === "undefined" ? Object : Schema ]), _applyDecoratedDescriptor(_class1.prototype, "method", [ _dec3, _dec4, _dec5, _dec6, _dec7 ], Object.getOwnPropertyDescriptor(_class1.prototype, "method"), _class1.prototype), _class1)) || _class1) || _class1) || _class1) || _class1; var _dec19 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Injected === "undefined" ? Object : Injected, typeof Injected === "undefined" ? Object : Injected ]), _dec20 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec21 = function(target, key) { return inject()(target, undefined, 1); }, _dec22 = function(target, key) { return inject()(target, undefined, 0); }; let DecoratedClass = _class2 = Decorate(_class2 = _dec22(_class2 = _dec21(_class2 = _dec20(_class2 = _dec19(((_class2 = class DecoratedClass { constructor(private readonly module: Injected, otherModule: Injected){ } method(param: string) { } }) || _class2, _dec8 = decorate("example"), _dec9 = function(target, key) { return inject()(target, key, 0); }, _dec10 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec11 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ String ]), _applyDecoratedDescriptor(_class2.prototype, "method", [ _dec8, _dec9, _dec10, _dec11 ], Object.getOwnPropertyDescriptor(_class2.prototype, "method"), _class2.prototype), _class2)) || _class2) || _class2) || _class2) || _class2) || _class2; "## ); test!( ts(), |_| decorators(Config { legacy: true, emit_metadata: true, }), legacy_metadata_type_serialization, "import { Service } from './service'; import { Decorate } from './Decorate'; const sym = Symbol(); @Decorate() class Sample { constructor( private p0: String, p1: Number, p2: 10, p3: 'ABC', p4: boolean, p5: string, p6: number, p7: Object, p8: () => any, p9: 'abc' | 'def', p10: String | Number, p11: Function, p12: null, p13: undefined, p14: any, p15: (abc: any) => void, p16: false, p17: true, p18: string = 'abc' ) {} @Decorate method( @Arg() p0: Symbol, p1: typeof sym, p2: string | null, p3: never, p4: string | never, p5: (string | null), p6: Maybe, p7: Object | string, p8: string & MyStringType, p9: string[], p10: [string, number], p11: void, p12: this is number, p13: null | undefined, p14: (string | (string | null)), p15: Object, p16: any, p17: bigint, ) {} /** * Member Expression */ @Decorate() method2( p0: Decorate.Name = 'abc', p1: Decorate.Name ) {} /** * Assignments */ @Decorate() assignments( p0: string = 'abc' ) {} }", r##"var _class, _dec, _dec1, _dec2, _dec3, _dec4, _dec5, _dec6, _dec7, _dec8; import { Service } from "./service"; import { Decorate } from "./Decorate"; const sym = Symbol(); var _dec9 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof String === "undefined" ? Object : String, typeof Number === "undefined" ? Object : Number, Number, String, Boolean, String, Number, typeof Object === "undefined" ? Object : Object, Function, String, Object, typeof Function === "undefined" ? Object : Function, void 0, void 0, Object, Function, Boolean, Boolean, void 0 ]), _dec10 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec11 = Decorate(); let Sample = _class = _dec11(_class = _dec10(_class = _dec9(((_class = class Sample { constructor(private p0: String, p1: Number, p2: 10, p3: "ABC", p4: boolean, p5: string, p6: number, p7: Object, p8: () => any, p9: "abc" | "def", p10: String | Number, p11: Function, p12: null, p13: undefined, p14: any, p15: (abc: any) => void, p16: false, p17: true, p18: string = "abc"){ } method(p0: Symbol, p1: typeof sym, p2: string | null, p3: never, p4: string | never, p5: (string | null), p6: Maybe, p7: Object | string, p8: string & MyStringType, p9: string[], p10: [string, number], p11: void, p12: this is number, p13: null | undefined, p14: (string | (string | null)), p15: Object, p16: any, p17: bigint) { } method2(p0: Decorate.Name. = "abc", p1: Decorate.Name.) { } assignments(p0: string = "abc") { } }) || _class, _dec = function(target, key) { return Arg()(target, key, 0); }, _dec1 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec2 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Symbol === "undefined" ? Object : Symbol, Object, void 0, void 0, void 0, void 0, typeof Maybe === "undefined" ? Object : Maybe, Object, Object, Array, Array, void 0, Boolean, void 0, Object, typeof Object === "undefined" ? Object : Object, Object, Number ]), _applyDecoratedDescriptor(_class.prototype, "method", [ Decorate, _dec, _dec1, _dec2 ], Object.getOwnPropertyDescriptor(_class.prototype, "method"), _class.prototype), _dec3 = Decorate(), _dec4 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec5 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ void 0, typeof Decorate === "undefined" || typeof Decorate.Name === "undefined" ? Object : Decorate.Name ]), _applyDecoratedDescriptor(_class.prototype, "method2", [ _dec3, _dec4, _dec5 ], Object.getOwnPropertyDescriptor(_class.prototype, "method2"), _class.prototype), _dec6 = Decorate(), _dec7 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec8 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ void 0 ]), _applyDecoratedDescriptor(_class.prototype, "assignments", [ _dec6, _dec7, _dec8 ], Object.getOwnPropertyDescriptor(_class.prototype, "assignments"), _class.prototype), _class)) || _class) || _class) || _class;"##, ok_if_code_eq ); test!( ts(), |_| decorators(Config { legacy: true, emit_metadata: true, }), issue_1160_1, " enum MyEnum { x = \"xxx\", y = \"yyy\" } class Xpto { @Decorator() value!: MyEnum; } function Decorator() { return function (...args) {}; } ", " var _class, _descriptor; enum MyEnum { x = \"xxx\", y = \"yyy\" } var _dec = Decorator(), _dec1 = typeof Reflect !== \"undefined\" && typeof Reflect.metadata === \ \"function\" && Reflect.metadata(\"design:type\", String); let Xpto = ((_class = class Xpto { constructor(){ _initializerDefineProperty(this, \"value\", _descriptor, this); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, \"value\", [ _dec, _dec1 ], { configurable: true, enumerable: true, writable: true, initializer: void 0 }), _class); function Decorator() { return function(...args) { }; } ", ok_if_code_eq ); // decorators_legacy_interop_local_define_property test!( // See: https://github.com/swc-project/swc/issues/421 ignore, Default::default(), |t| chain!( decorators(decorators::Config { legacy: true, ..Default::default() }), class_properties(), classes(Some(t.comments.clone()),) ), decorators_legacy_interop_local_define_property, r#" function dec() {} // Create a local function binding so babel has to change the name of the helper function _defineProperty() {} class A { @dec a; @dec b = 123; c = 456; } "#, r#" var _class, _descriptor, _descriptor2, _temp; function dec() {} // Create a local function binding so babel has to change the name of the helper function _defineProperty() {} let A = (_class = (_temp = function A() { "use strict"; _classCallCheck(this, A); _initializerDefineProperty(this, "a", _descriptor, this); _initializerDefineProperty(this, "b", _descriptor2, this); _defineProperty2(this, "c", 456); }, _temp), (_descriptor = _applyDecoratedDescriptor(_class.prototype, "a", [dec], { configurable: true, enumerable: true, writable: true, initializer: null }), _descriptor2 = _applyDecoratedDescriptor(_class.prototype, "b", [dec], { configurable: true, enumerable: true, writable: true, initializer: function () { return 123; } })), _class); "# ); fn issue_395_syntax() -> ::swc_ecma_parser::Syntax { ::swc_ecma_parser::Syntax::Es(::swc_ecma_parser::EsConfig { decorators: true, ..Default::default() }) } test!( issue_395_syntax(), |_| chain!( decorators(Default::default()), common_js( Mark::fresh(Mark::root()), common_js::Config { strict: false, strict_mode: true, no_interop: true, ..Default::default() }, None ), ), issue_395_1, " import Test from './moduleA.js' @Test('0.0.1') class Demo { constructor() { this.author = 'alan' } } ", " 'use strict'; var _moduleAJs = require('./moduleA.js'); let Demo = _decorate([(0, _moduleAJs).default('0.0.1')], function(_initialize) { class Demo{ constructor(){ _initialize(this); this.author = 'alan'; } } return { F: Demo, d: [] }; }); " ); test!( issue_395_syntax(), |_| chain!( decorators(Default::default()), common_js::common_js( Mark::fresh(Mark::root()), common_js::Config { strict: false, strict_mode: true, no_interop: true, ..Default::default() }, None ), ), issue_395_2, " const Test = (version) => { return (target) => { target.version = version } } export default Test ", " 'use strict'; Object.defineProperty(exports, '__esModule', { value: true }); exports.default = void 0; const Test = (version)=>{ return (target)=>{ target.version = version; }; }; var _default = Test; exports.default = _default; " ); // function_name_function_assignment test!( ignore, Default::default(), |t| chain!( resolver(), decorators(decorators::Config { legacy: true, ..Default::default() }), classes(Some(t.comments.clone())), function_name(), ), function_name_function_assignment, r#" var foo; foo = function() { }; var baz; baz = function() { baz(); }; baz = 12; bar = function() { bar(); }; "#, r#" var foo; foo = function foo() {}; var _baz; _baz = function baz() { _baz(); }; _baz = 12; bar = function (_bar) { function bar() { return _bar.apply(this, arguments); } bar.toString = function () { return _bar.toString(); }; return bar; }(function () { bar(); }); "# ); // function_name_shorthand_property test!( // not important ignore, Default::default(), |t| chain!( resolver(), decorators(decorators::Config { legacy: true, ..Default::default() }), classes(Some(t.comments.clone())), function_name(), ), function_name_shorthand_property, r#" var Utils = { get: function() {} }; var { get } = Utils; var bar = { get: function(arg) { get(arg, "baz"); } }; var f = function ({ foo = "bar" }) { var obj = { // same name as parameter foo: function () { foo; } }; }; "#, r#" var Utils = { get: function get() {} }; var { get: _get } = Utils; var bar = { get: function get(arg) { _get(arg, "baz"); } }; var f = function f({ foo: _foo = "bar" }) { var obj = { // same name as parameter foo: function foo() { _foo; } }; }; "# ); // function_name_object test!( ignore, Default::default(), |t| chain!( resolver(), function_name(), classes(Some(t.comments.clone())), decorators(decorators::Config { legacy: true, ..Default::default() }) ), function_name_object, r#" var obj = { f: function () { (function f() { console.log(f); })(); }, h: function () { console.log(h); }, m: function () { doSmth(); } }; "#, r#" var obj = { f: function f() { (function f() { console.log(f); })(); }, h: function (_h) { function h() { return _h.apply(this, arguments); } h.toString = function () { return _h.toString(); }; return h; }(function () { console.log(h); }), m: function m() { doSmth(); } }; "# ); // function_name_export test!( // not important ignore, Default::default(), |t| chain!( resolver(), function_name(), classes(Some(t.comments.clone())), decorators(decorators::Config { legacy: true, ..Default::default() }) ), function_name_export, r#" export var foo = "yes", foob = "no"; export function whatever() {} export default function wowzers() {} var bar = { foo: function () { foo; }, whatever: function () { whatever; }, wowzers: function () { wowzers; } }; "#, r#" var _foo = "yes", foob = "no"; export { _foo as foo, foob }; function _whatever() {} export { _whatever as whatever }; function _wowzers() {} export { _wowzers as default }; var bar = { foo: function foo() { _foo; }, whatever: function whatever() { _whatever; }, wowzers: function wowzers() { _wowzers; } }; "# ); // function_name_global test!( // Cost of development is too high. ignore, Default::default(), |t| chain!( resolver(), decorators(decorators::Config { legacy: true, ..Default::default() }), function_name(), classes(Some(t.comments.clone())), ), function_name_global, r#" var test = { setInterval: function(fn, ms) { setInterval(fn, ms); } }; "#, r#" var test = { setInterval: function (_setInterval) { function setInterval(_x, _x2) { return _setInterval.apply(this, arguments); } setInterval.toString = function () { return _setInterval.toString(); }; return setInterval; }(function (fn, ms) { setInterval(fn, ms); }) }; "# ); // function_name_modules test!( Default::default(), |t| chain!( resolver(), decorators(decorators::Config { legacy: true, ..Default::default() }), classes(Some(t.comments.clone())), function_name(), common_js(Mark::fresh(Mark::root()), Default::default(), None), ), function_name_modules, r#" import events from "events"; class Template { events() { return events; } } console.log(new Template().events()); "#, r#" "use strict"; var _events = _interopRequireDefault(require("events")); let Template = /*#__PURE__*/ function () { 'use strict'; function Template() { _classCallCheck(this, Template); } _createClass(Template, [{ key: "events", value: function events() { return _events.default; } }]); return Template; }(); console.log(new Template().events()); "# ); // function_name_eval test!( Default::default(), |t| chain!( resolver(), function_name(), classes(Some(t.comments.clone())), decorators(decorators::Config { legacy: true, ..Default::default() }) ), function_name_eval, r#" var a = { eval: function () { return eval; } }; "#, r#" var a = { eval: function _eval() { return eval; } }; "# ); test!( ts(), |_| decorators(decorators::Config { legacy: true, ..Default::default() }), swc_node_210, " class Foo{ @dec [foo]() { } } ", " var _class; let Foo = ((_class = class Foo { [foo]() { } }) || _class, _applyDecoratedDescriptor(_class.prototype, foo, [ dec ], Object.getOwnPropertyDescriptor(_class.prototype, foo), _class.prototype), _class); " ); test!( ts(), |_| decorators(decorators::Config { legacy: true, emit_metadata: true, ..Default::default() }), issue_1421_1, " class User { @column() currency!: 'usd' | 'eur' | 'yen'; } ", " var _class, _descriptor; var _dec = column(), _dec1 = typeof Reflect !== 'undefined' && typeof Reflect.metadata === \ 'function' && Reflect.metadata('design:type', String); let User = ((_class = class User { constructor(){ _initializerDefineProperty(this, 'currency', _descriptor, this); } }) || _class, _descriptor = _applyDecoratedDescriptor(_class.prototype, 'currency', [ _dec, _dec1 ], { configurable: true, enumerable: true, writable: true, initializer: void 0 }), _class); " ); test!( ts(), |_| decorators(decorators::Config { legacy: true, emit_metadata: true, ..Default::default() }), issue_1456_1, " class MyClass { constructor(@Inject() param1: Injected) {} } ", r#" var _class; var _dec = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:paramtypes", [ typeof Injected === "undefined" ? Object : Injected ]), _dec1 = typeof Reflect !== "undefined" && typeof Reflect.metadata === "function" && Reflect.metadata("design:type", Function), _dec2 = function(target, key) { return Inject()(target, undefined, 0); }; let MyClass = _class = _dec2(_class = _dec1(_class = _dec((_class = class MyClass { constructor(param1: Injected){ } }) || _class) || _class) || _class) || _class; "# ); test!( ts(), |_| decorators(decorators::Config { ..Default::default() }), issue_846_1, " class SomeClass { @dec someMethod() {} } class OtherClass extends SomeClass { @dec anotherMethod() { super.someMethod() } } ", " let SomeClass = _decorate([], function(_initialize) { class SomeClass { constructor(){ _initialize(this); } } return { F: SomeClass, d: [ { kind: 'method', decorators: [ dec ], key: 'someMethod', value: function someMethod() { } } ] }; }); let OtherClass = _decorate([], function(_initialize, _SomeClass) { class OtherClass extends _SomeClass { constructor(...args){ super(...args); _initialize(this); } } return { F: OtherClass, d: [ { kind: 'method', decorators: [ dec ], key: 'anotherMethod', value: function anotherMethod() { _get(_getPrototypeOf(OtherClass.prototype), 'someMethod', \ this).call(this); } } ] }; }, SomeClass); " );