mirror of
https://github.com/swc-project/swc.git
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dc58122283
swc_ecma_transforms_compat: - `computed_properties`: Add loose mode. - `template_literals`: Add loose mode. - `object_spread`: Add loose mode. - `optional_chaining`: Add loose mode. - `nullish_coalescing`: Add loose mode. - `optional_chaining`: Fix #2734.
1640 lines
31 KiB
Rust
1640 lines
31 KiB
Rust
use swc_common::{chain, Mark};
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use swc_ecma_parser::Syntax;
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use swc_ecma_transforms_base::resolver::resolver;
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use swc_ecma_transforms_compat::{
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es2015,
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es2015::{
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block_scoping,
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destructuring::{destructuring, Config},
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parameters, spread,
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},
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es2018::object_rest_spread,
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};
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use swc_ecma_transforms_testing::{test, test_exec};
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use swc_ecma_visit::Fold;
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fn syntax() -> Syntax {
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Default::default()
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}
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fn tr() -> impl Fold {
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destructuring(Config { loose: true })
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}
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test!(
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syntax(),
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|_| tr(),
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issue_169,
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"export class Foo {
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func(a, b = Date.now()) {
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return {a};
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}
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}",
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"export class Foo{
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func(a, ref) {
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let b = ref === void 0 ? Date.now() : ref;
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return {
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a
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};
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}
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}
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"
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);
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test!(
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syntax(),
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|_| chain!(
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spread(spread::Config {
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..Default::default()
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}),
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parameters(),
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destructuring(Default::default()),
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block_scoping(),
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object_rest_spread(Default::default()),
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),
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issue_1948,
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"
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const fn2 = (arg1, {opt1, opt2}, arg2, {opt3, opt4}, ...arg3) => {
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console.log(arg1, opt1, opt2, arg2, opt3, opt4, arg3);
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};
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function fn3(arg1, {opt1, opt2}, arg2, {opt3, opt4}, ...arg3) {
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console.log(arg1, opt1, opt2, arg2, opt3, opt4, arg3);
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};
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class cls {
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fn4(arg1, {opt1, opt2}, arg2, {opt3, opt4}, ...arg3) {
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console.log(arg1, opt1, opt2, arg2, opt3, opt4, arg3);
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}
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fn5(arg1, arg2) {
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console.log(arg1, arg2);
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}
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}",
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"
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var fn2 = function(arg1, param, arg2, param1) {
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var opt1 = param.opt1, opt2 = param.opt2, opt3 = param1.opt3, opt4 = param1.opt4;
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for(var _len = arguments.length, arg3 = new Array(_len > 4 ? _len - 4 : 0), _key = 4; _key \
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< _len; _key++){
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arg3[_key - 4] = arguments[_key];
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}
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console.log(arg1, opt1, opt2, arg2, opt3, opt4, arg3);
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};
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function fn3(arg1, param, arg2, param2) {
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var opt1 = param.opt1, opt2 = param.opt2, opt3 = param2.opt3, opt4 = param2.opt4;
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for(var _len = arguments.length, arg3 = new Array(_len > 4 ? _len - 4 : 0), _key = 4; _key \
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< _len; _key++){
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arg3[_key - 4] = arguments[_key];
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}
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console.log(arg1, opt1, opt2, arg2, opt3, opt4, arg3);
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}
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;
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class cls {
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fn4(arg1, param, arg2, param3) {
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var opt1 = param.opt1, opt2 = param.opt2, opt3 = param3.opt3, opt4 = param3.opt4;
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for(var _len = arguments.length, arg3 = new Array(_len > 4 ? _len - 4 : 0), _key = 4; \
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_key < _len; _key++){
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arg3[_key - 4] = arguments[_key];
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}
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console.log(arg1, opt1, opt2, arg2, opt3, opt4, arg3);
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}
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fn5(arg1, arg2) {
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console.log(arg1, arg2);
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}
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}
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"
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);
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test!(
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syntax(),
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|_| tr(),
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issue_260_01,
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"[code = 1] = []",
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"var ref, ref1;
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ref = [], ref1 = ref[0], code = ref1 === void 0 ? 1 : ref1, ref;"
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);
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test!(
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syntax(),
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|_| tr(),
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issue_260_02,
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"[code = 1, ...rest] = [];",
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"code = 1 = void 0, rest = [];",
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ok_if_code_eq
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);
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test!(
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syntax(),
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|_| tr(),
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object_pat_assign_prop,
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"({code = 1} = {})",
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"var ref, ref1;
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ref = {}, ref1 = ref.code, code = ref1 === void 0 ? 1 : ref1, ref;"
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);
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test!(
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syntax(),
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|_| tr(),
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obj_assign_pat,
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r#"let { a = 1 } = foo"#,
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r#"let _a = foo.a, a = _a === void 0 ? 1 : _a;"#
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);
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test!(
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syntax(),
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|_| tr(),
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obj_assign_expr,
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r#"let a;
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[{ a = 1 }] = foo"#,
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r#"let a;
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var ref, ref1, ref2;
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ref = foo, ref1 = ref[0], ref2 = ref1.a, a = ref2 === void 0 ? 1 : ref2, ref1, ref;"#
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);
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test!(
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syntax(),
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|_| tr(),
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array1,
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r#"var [a, [b], [c]] = ["hello", [", ", "junk"], ["world"]];"#,
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r#"var a = 'hello', ref = [', ', 'junk'], b = ref[0], c = 'world';"#
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);
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test!(
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syntax(),
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|_| tr(),
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array2,
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r#"[a, [b], [c]] = ["hello", [", ", "junk"], ["world"]];"#,
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r#"a = 'hello', [b] = [', ', 'junk'], [c] = ['world'];
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"#
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);
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test!(
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syntax(),
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|_| tr(),
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assign_expr_completion_record,
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r#"var x, y;
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[x, y] = [1, 2];"#,
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r#"var x, y;
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x = 1, y = 2"#
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);
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test!(
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syntax(),
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|_| tr(),
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assign_expr_pat,
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r#"var z = {};
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var { x: { y } = {} } = z;"#,
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r#"var z = {
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};
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var tmp = z.x, y = (tmp === void 0 ? {} : tmp).y;"#
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);
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test!(
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syntax(),
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|_| tr(),
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assign_expr,
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r#"console.log([x] = [123]);"#,
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r#"var ref;
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console.log((ref = [123], x = ref[0], ref));"#
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);
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test_exec!(
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syntax(),
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|_| destructuring(Config { loose: true }),
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chained,
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r#"var a, b, c, d;
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({ a, b } = ({ c, d } = { a: 1, b: 2, c: 3, d: 4}));
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expect(a).toBe(1);
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expect(b).toBe(2);
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expect(c).toBe(3);
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expect(d).toBe(4);"#
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);
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test!(
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syntax(),
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|_| tr(),
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empty,
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r#"var [, a, [b], [c], d] = ["foo", "hello", [", ", "junk"], ["world"]];"#,
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r#"var ref = ['foo', 'hello', [', ', 'junk'], ['world']], a = ref[1], ref1 = ref[2],
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b = ref1[0], ref2 = ref[3], c = ref2[0], d = ref[4];
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"#
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);
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test!(
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ignore,
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syntax(),
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|_| tr(),
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es7_object_rest_builtins,
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r#"var z = {};
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var { ...x } = z;
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var { x, ...y } = z;
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var { [x]: x, ...y } = z;
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(function({ x, ...y }) { });
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({ x, y, ...z } = o);"#,
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r#"var z = {};
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var _z = z,
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x = Object.assign({}, _z);
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var _z2 = z,
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x = _z2.x,
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y = _objectWithoutProperties(_z2, ["x"]);
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var _z3 = z,
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x = _z3[x],
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y = _objectWithoutProperties(_z3, [x].map(_toPropertyKey));
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(function (_ref) {
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var x = _ref.x,
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y = _objectWithoutProperties(_ref, ["x"]);
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});
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var _o = o;
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x = _o.x;
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y = _o.y;
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z = _objectWithoutProperties(_o, ["x", "y"]);
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_o;"#
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);
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test!(
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ignore,
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syntax(),
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|_| tr(),
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es7_object_rest,
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r#"var z = {};
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var { ...x } = z;
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var { x, ...y } = z;
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var { [x]: x, ...y } = z;
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(function({ x, ...y }) { });
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({ x, y, ...z } = o);"#,
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r#"var z = {};
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var _z = z,
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x = _extends({}, _z);
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var _z2 = z,
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x = _z2.x,
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y = _objectWithoutProperties(_z2, ["x"]);
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var _z3 = z,
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x = _z3[x],
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y = _objectWithoutProperties(_z3, [x].map(_toPropertyKey));
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(function (_ref) {
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var x = _ref.x,
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y = _objectWithoutProperties(_ref, ["x"]);
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});
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var _o = o;
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x = _o.x;
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y = _o.y;
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z = _objectWithoutProperties(_o, ["x", "y"]);
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_o;"#
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);
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test!(
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ignore,
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syntax(),
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|_| tr(),
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export_variable,
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r#"export let {a, b, c: {d, e: {f = 4}}} = {};"#,
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r#"
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var _ref = {},
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a = _ref.a,
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b = _ref.b,
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_ref$c = _ref.c,
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d = _ref$c.d,
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_ref$c$e$f = _ref$c.e.f,
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f = _ref$c$e$f === void 0 ? 4 : _ref$c$e$f;
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export { a, b, d, f };"#
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);
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test!(
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syntax(),
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|_| tr(),
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for_in,
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r#"for (var [name, value] in obj) {
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print("Name: " + name + ", Value: " + value);
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}"#,
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r#"for(var ref in obj){
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let name = ref[0], value = ref[1];
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print('Name: ' + name + ', Value: ' + value);
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}
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"#
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);
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|
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test!(
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syntax(),
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|_| tr(),
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for_let,
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r#"for (let [ i, n ] = range; ; ) {}"#,
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r#"for(let i = range[0], n = range[1];;){}"#
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);
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|
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test!(
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syntax(),
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|_| tr(),
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for_of,
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r#"for (var [ name, before, after ] of test.expectation.registers) {
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|
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}"#,
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r#"for(var ref of test.expectation.registers){
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let name = ref[0], before = ref[1], after = ref[2];
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}"#
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);
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|
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test_exec!(
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ignore,
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syntax(),
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|_| destructuring(Config { loose: true }),
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fn_key_with_obj_rest_spread,
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r#"const { [(() => 1)()]: a, ...rest } = { 1: "a" };
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expect(a).toBe("a");
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expect(rest).toEqual({});"#
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);
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|
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test!(
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syntax(),
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|_| tr(),
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babel_issue_3081,
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r#"let list = [1, 2, 3, 4];
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for (let i = 0, { length } = list; i < length; i++) {
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list[i];
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}"#,
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r#"let list = [1, 2, 3, 4];
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for(let i = 0, length = list.length; i < length; i++){
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list[i];
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}
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"#
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);
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|
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test_exec!(
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syntax(),
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|_| destructuring(Config { loose: true }),
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babel_issue_5090,
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r#"const assign = function([...arr], index, value) {
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arr[index] = value;
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return arr;
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}
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const arr = [1, 2, 3];
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assign(arr, 1, 42);
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|
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expect(arr).toEqual([1, 2, 3]);"#
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);
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|
|
test!(
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syntax(),
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|_| tr(),
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babel_issue_5628,
|
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r#"
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(function () {
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let q;
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let w;
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let e;
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if (true) [q, w, e] = [1, 2, 3].map(()=>123);
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})();"#,
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r#"(function() {
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let q;
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let w;
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let e;
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var ref;
|
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if (true) ref = [1, 2, 3].map(()=>123), q = ref[0], w = ref[1], e = ref[2], ref;
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})();"#
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);
|
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|
|
test!(
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syntax(),
|
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|_| tr(),
|
|
babel_issue_5744,
|
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r#"if (true) [a, b] = [b, a];"#,
|
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r#"var ref;
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if (true) ref = [b, a], a = ref[0], b = ref[1], ref;"#
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);
|
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|
|
test!(
|
|
ignore,
|
|
syntax(),
|
|
|_| tr(),
|
|
babel_issue_6373,
|
|
r#"import { NestedObjects } from "./some-module"
|
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|
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const { Foo, Bar } = NestedObjects"#,
|
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r#""use strict";
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|
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var _someModule = require("./some-module");
|
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|
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const Foo = _someModule.NestedObjects.Foo,
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Bar = _someModule.NestedObjects.Bar;"#
|
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);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
known_array,
|
|
r#"var z = [];
|
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var [x, ...y] = z;"#,
|
|
r#"var z = [];
|
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var x = z[0],
|
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y = z.slice(1);"#
|
|
);
|
|
|
|
//test!(
|
|
// syntax(),
|
|
// |_| tr(),
|
|
// member_expr,
|
|
// r#"[foo.foo, foo.bar] = [1, 2];"#,
|
|
// r#"foo.foo = 1, foo.bar = 2;"#
|
|
//);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
multiple,
|
|
r#"var coords = [1, 2];
|
|
var { x, y } = coords,
|
|
foo = "bar";"#,
|
|
r#"var coords = [1, 2];
|
|
var x = coords.x, y = coords.y, foo = 'bar';"#
|
|
);
|
|
|
|
test_exec!(
|
|
ignore,
|
|
syntax(),
|
|
|_| destructuring(Config { loose: true }),
|
|
number_key_with_object_spread,
|
|
r#"const foo = {
|
|
1: "a",
|
|
2: "b",
|
|
3: "c",
|
|
};
|
|
|
|
const { [1]: bar, ...rest } = foo;
|
|
|
|
expect(bar).toBe("a");
|
|
expect(rest).toEqual({ 2: "b", 3: "c" });"#
|
|
);
|
|
|
|
test_exec!(
|
|
ignore,
|
|
syntax(),
|
|
|_| destructuring(Config { loose: true }),
|
|
spread_generator,
|
|
r#"function* f() {
|
|
for (var i = 0; i < 3; i++) {
|
|
yield i;
|
|
}
|
|
}
|
|
var [...xs] = f();
|
|
expect(xs).toEqual([0, 1, 2]);"#
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
spread_test,
|
|
r#"function isSorted([x, y, ...wow]) {
|
|
if (!zs.length) return true
|
|
if (y > x) return isSorted(zs)
|
|
return false
|
|
}"#,
|
|
r#"function isSorted(ref) {
|
|
let x = ref[0], y = ref[1], wow = ref.slice(2);
|
|
if (!zs.length) return true;
|
|
if (y > x) return isSorted(zs);
|
|
return false;
|
|
}"#
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_311,
|
|
"const Foo = 'foo';
|
|
|
|
const bar = {
|
|
[Foo]: {
|
|
qux: 'baz'
|
|
}
|
|
};
|
|
|
|
const {
|
|
[Foo]: {
|
|
qux
|
|
}
|
|
} = bar;",
|
|
"
|
|
const Foo = 'foo';
|
|
const bar = {
|
|
[Foo]: {
|
|
qux: 'baz'
|
|
}
|
|
};
|
|
const qux = bar[Foo].qux;"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_317,
|
|
"export const [
|
|
A,
|
|
B,
|
|
C
|
|
] = [1,2,3];
|
|
|
|
export const [
|
|
E,
|
|
D,
|
|
F
|
|
] = [4,5,6];",
|
|
"
|
|
export const A = 1, B = 2, C = 3;
|
|
export const E = 4, D = 5, F = 6;"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_336,
|
|
"const { 'foo-bar': fooBar } = baz;",
|
|
"const fooBar = baz['foo-bar'];"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_404_1,
|
|
"function foo(bar) {
|
|
const { foo } = bar;
|
|
return foo;
|
|
}",
|
|
"
|
|
function foo(bar) {
|
|
const foo = bar.foo;
|
|
return foo;
|
|
}"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|t| chain!(
|
|
resolver(),
|
|
es2015(
|
|
Mark::fresh(Mark::root()),
|
|
Some(t.comments.clone()),
|
|
Default::default()
|
|
),
|
|
),
|
|
issue_404_2,
|
|
"function foo(bar) {
|
|
const { foo } = bar;
|
|
return foo;
|
|
}",
|
|
"
|
|
function foo1(bar) {
|
|
var foo = bar.foo;
|
|
return foo;
|
|
}"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_404_3,
|
|
"function foo(bar) {
|
|
var { foo: foo1 } = bar;
|
|
return foo1;
|
|
}",
|
|
"
|
|
function foo(bar) {
|
|
var foo1 = bar.foo;
|
|
return foo1;
|
|
}
|
|
"
|
|
);
|
|
|
|
// destructuring_function_key_with_object_rest_spread
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
destructuring(Default::default())
|
|
),
|
|
destructuring_function_key_with_object_rest_spread_exec,
|
|
r#"
|
|
const { [(() => 1)()]: a, ...rest } = { 1: "a" };
|
|
|
|
expect(a).toBe("a");
|
|
expect(rest).toEqual({});
|
|
|
|
"#
|
|
);
|
|
|
|
// regression_8528
|
|
test!(
|
|
syntax(),
|
|
|_| destructuring(Default::default()),
|
|
regression_8528,
|
|
r#"
|
|
function isBetween(x, a, b) {
|
|
if (a > b) [a, b] = [b, a];
|
|
return x > a && x < b;
|
|
}
|
|
|
|
"#,
|
|
r#"
|
|
function isBetween(x, a, b) {
|
|
var ref;
|
|
if (a > b) ref = [b, a], a = ref[0], b = ref[1], ref;
|
|
|
|
return x > a && x < b;
|
|
}
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_for_of
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_for_of,
|
|
r#"
|
|
for (var [ name, before, after ] of test.expectation.registers) {
|
|
|
|
}
|
|
|
|
for ([ name, before, after ] of test.expectation.registers) {
|
|
|
|
}
|
|
|
|
"#,
|
|
r#"
|
|
for (var ref2 of test.expectation.registers){
|
|
var _ref = _slicedToArray(ref2, 3), name = _ref[0], before = _ref[1], after = _ref[2];
|
|
}
|
|
var ref1;
|
|
for (ref of test.expectation.registers){
|
|
ref1 = ref, name = ref1[0], before = ref1[1], after = ref1[2], ref1;
|
|
}
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_object_basic
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_object_basic,
|
|
r#"
|
|
var coords = [1, 2];
|
|
var { x, y } = coords;
|
|
|
|
"#,
|
|
r#"
|
|
var coords = [1, 2];
|
|
var x = coords.x,
|
|
y = coords.y;
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_assignment_arrow_function_block
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_assignment_arrow_function_block,
|
|
r#"
|
|
() => { [a, b] = [1, 2] }
|
|
|
|
"#,
|
|
r#"
|
|
() => {
|
|
a = 1, b = 2;
|
|
};
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_non_iterable
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_non_iterable_exec,
|
|
r#"
|
|
expect(
|
|
() => {
|
|
var [foo, bar] = undefined;
|
|
}).toThrow();
|
|
|
|
expect(
|
|
() => {
|
|
var foo = [ ...undefined ];
|
|
}).toThrow();
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_empty_object_pattern
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_empty_object_pattern_exec,
|
|
r#"
|
|
expect(function () {
|
|
var {} = null;
|
|
}).toThrow("Cannot destructure undefined");
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_chained
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_chained_exec,
|
|
r#"
|
|
var a, b, c, d;
|
|
({ a, b } = ({ c, d } = { a: 1, b: 2, c: 3, d: 4}));
|
|
expect(a).toBe(1);
|
|
expect(b).toBe(2);
|
|
expect(c).toBe(3);
|
|
expect(d).toBe(4);
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_object_rest_impure_computed_keys
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
),
|
|
destructuring_object_rest_impure_computed_keys_exec,
|
|
r#"
|
|
var key, x, y, z;
|
|
// impure
|
|
key = 1;
|
|
var { [key++]: y, ...x } = { 1: 1, a: 1 };
|
|
expect(x).toEqual({ a: 1 });
|
|
expect(key).toBe(2);
|
|
expect(1).toBe(y);
|
|
|
|
// takes care of the order
|
|
|
|
key = 1;
|
|
var { [++key]: y, [++key]: z, ...rest} = {2: 2, 3: 3};
|
|
expect(y).toBe(2);
|
|
expect(z).toBe(3);
|
|
|
|
// pure, computed property should remain as-is
|
|
key = 2;
|
|
({ [key]: y, z, ...x } = {2: "two", z: "zee"});
|
|
expect(y).toBe("two");
|
|
expect(x).toEqual({});
|
|
expect(z).toBe("zee");
|
|
|
|
// rhs evaluated before lhs
|
|
var order = [];
|
|
function left() {
|
|
order.push("left");
|
|
return 0;
|
|
}
|
|
function right() {
|
|
order.push("right");
|
|
return {};
|
|
}
|
|
var { [left()]: y, ...x} = right();
|
|
expect(order).toEqual(["right", "left"]);
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_issue_5090
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_issue_5090_exec,
|
|
r#"
|
|
const assign = function([...arr], index, value) {
|
|
arr[index] = value;
|
|
return arr;
|
|
}
|
|
|
|
const arr = [1, 2, 3];
|
|
assign(arr, 1, 42);
|
|
|
|
expect(arr).toEqual([1, 2, 3]);
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_default_precedence
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_default_precedence_exec,
|
|
r#"
|
|
var f0 = function (a, b = a, c = b) {
|
|
return [a, b, c];
|
|
};
|
|
|
|
expect(f0(1)).toEqual([1, 1, 1]);
|
|
|
|
var f1 = function ({a}, b = a, c = b) {
|
|
return [a, b, c];
|
|
};
|
|
|
|
expect(f1({a: 1})).toEqual([1, 1, 1]);
|
|
|
|
var f2 = function ({a}, b = a, c = a) {
|
|
return [a, b, c];
|
|
};
|
|
|
|
expect(f2({a: 1})).toEqual([1, 1, 1]);
|
|
|
|
"#
|
|
);
|
|
|
|
//// destructuring_es7_object_rest_builtins
|
|
//test!(
|
|
// syntax(),
|
|
// |_| tr(r#"{
|
|
// "plugins": [
|
|
//
|
|
// [destructuring(Default::default()), { "useBuiltIns": true }],
|
|
// spread(spread::Config{..Default::default()}),
|
|
// parameters(),
|
|
// block_scoping(),
|
|
// object_rest_spread(Default::default()),
|
|
// ]
|
|
//}
|
|
//"#),
|
|
// destructuring_es7_object_rest_builtins,
|
|
// r#"
|
|
//var z = {};
|
|
//var { ...x } = z;
|
|
//var { x, ...y } = z;
|
|
//var { [x]: x, ...y } = z;
|
|
//(function({ x, ...y }) { });
|
|
//
|
|
//({ x, y, ...z } = o);
|
|
//
|
|
//"#,
|
|
// r#"
|
|
//var z = {};
|
|
//var _z = z,
|
|
// x = Object.assign({}, _z);
|
|
//var _z2 = z,
|
|
// x = _z2.x,
|
|
// y = _objectWithoutProperties(_z2, ["x"]);
|
|
//var _z3 = z,
|
|
// x = _z3[x],
|
|
// y = _objectWithoutProperties(_z3, [x].map(_toPropertyKey));
|
|
//
|
|
//(function (_ref) {
|
|
// var x = _ref.x,
|
|
// y = _objectWithoutProperties(_ref, ["x"]);
|
|
//});
|
|
//
|
|
//var _o = o;
|
|
//x = _o.x;
|
|
//y = _o.y;
|
|
//z = _objectWithoutProperties(_o, ["x", "y"]);
|
|
//_o;
|
|
//
|
|
//"#
|
|
//);
|
|
|
|
// destructuring_parameters
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_parameters,
|
|
r#"
|
|
function somethingAdvanced({topLeft: {x: x1, y: y1} = {}, bottomRight: {x: x2, y: y2} = {}}, p2, p3){
|
|
|
|
}
|
|
|
|
function unpackObject({title: title, author: author}) {
|
|
return title + " " + author;
|
|
}
|
|
|
|
console.log(unpackObject({title: "title", author: "author"}));
|
|
|
|
var unpackArray = function ([a, b, c], [x, y, z]) {
|
|
return a+b+c;
|
|
};
|
|
|
|
console.log(unpackArray(["hello", ", ", "world"], [1, 2, 3]));
|
|
|
|
"#,
|
|
r#"
|
|
function somethingAdvanced(param, p2, p3) {
|
|
var tmp = param.topLeft, ref = tmp === void 0 ? {
|
|
} : tmp, x1 = ref.x, y1 = ref.y, tmp1 = param.bottomRight, ref1 = tmp1 === void 0 ? {
|
|
} : tmp1, x2 = ref1.x, y2 = ref1.y;
|
|
}
|
|
|
|
function unpackObject(param) {
|
|
var title = param.title,
|
|
author = param.author;
|
|
return title + " " + author;
|
|
}
|
|
|
|
console.log(unpackObject({
|
|
title: "title",
|
|
author: "author"
|
|
}));
|
|
|
|
var unpackArray = function(param, param1) {
|
|
var _param = _slicedToArray(param, 3),
|
|
a = _param[0],
|
|
b = _param[1],
|
|
c = _param[2],
|
|
_param1 = _slicedToArray(param1, 3),
|
|
x = _param1[0],
|
|
y = _param1[1],
|
|
z = _param1[2];
|
|
|
|
return a + b + c;
|
|
};
|
|
|
|
console.log(unpackArray(["hello", ", ", "world"], [1, 2, 3]));
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_array_unpack_optimisation
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_array_unpack_optimisation,
|
|
r#"
|
|
var [a, b] = [1, 2];
|
|
var [[a, b]] = [[1, 2]];
|
|
var [a, b, ...c] = [1, 2, 3, 4];
|
|
var [[a, b, ...c]] = [[1, 2, 3, 4]];
|
|
|
|
var [a, b] = [1, 2, 3];
|
|
var [[a, b]] = [[1, 2, 3]];
|
|
var [a, b] = [a, b];
|
|
[a[0], a[1]] = [a[1], a[0]];
|
|
var [a, b] = [...foo, bar];
|
|
var [a, b] = [foo(), bar];
|
|
var [a, b] = [clazz.foo(), bar];
|
|
var [a, b] = [clazz.foo, bar];
|
|
var [a, b] = [, 2];
|
|
[a, b] = [1, 2];
|
|
[a, b] = [, 2];
|
|
; // Avoid completion record special case
|
|
|
|
"#,
|
|
r#"
|
|
var a = 1,
|
|
b = 2;
|
|
var a = 1,
|
|
b = 2;
|
|
var a = 1,
|
|
b = 2,
|
|
c = [3, 4];
|
|
var a = 1,
|
|
b = 2,
|
|
c = [3, 4];
|
|
var ref = [1, 2, 3],
|
|
a = ref[0],
|
|
b = ref[1];
|
|
var ref1 = [1, 2, 3],
|
|
a = ref1[0],
|
|
b = ref1[1];
|
|
var ref2 = [a, b],
|
|
a = ref2[0],
|
|
b = ref2[1];
|
|
var ref3;
|
|
ref3 = [a[1], a[0]], a[0] = ref3[0], a[1] = ref3[1], ref3;
|
|
|
|
|
|
var ref4 = _slicedToArray(_toConsumableArray(foo).concat([bar]), 2), a = ref4[0], b = ref4[1];
|
|
// TODO: var ref4 = _toConsumableArray(foo).concat([bar]), a = ref4[0], b = ref4[1];
|
|
|
|
var ref5 = [foo(), bar],
|
|
a = ref5[0],
|
|
b = ref5[1];
|
|
var ref6 = [clazz.foo(), bar],
|
|
a = ref6[0],
|
|
b = ref6[1];
|
|
var ref7 = [clazz.foo, bar],
|
|
a = ref7[0],
|
|
b = ref7[1];
|
|
var a,
|
|
b = 2;
|
|
a = 1, b = 2;
|
|
a = void 0, b = 2;
|
|
|
|
; // Avoid completion record special case
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_known_array
|
|
test!(
|
|
// We will use constant propagation instead of optimizing in each pass
|
|
ignore,
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_known_array,
|
|
r#"
|
|
var z = [];
|
|
var [x, ...y] = z;
|
|
|
|
"#,
|
|
r#"
|
|
var z = [];
|
|
var x = z[0],
|
|
y = z.slice(1);
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_es7_object_rest
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_es7_object_rest,
|
|
r#"
|
|
var z = {};
|
|
var { ...x } = z;
|
|
var { x, ...y } = z;
|
|
var { [x]: x, ...y } = z;
|
|
(function({ x, ...y }) { });
|
|
|
|
({ x, y, ...z } = o);
|
|
|
|
"#,
|
|
r#"
|
|
var z = {};
|
|
var x = _extends({
|
|
}, z);
|
|
var x = z.x,
|
|
y = _objectWithoutProperties(z, ["x"]);
|
|
var x = z[x],
|
|
y = _objectWithoutProperties(z, [x].map(_toPropertyKey));
|
|
|
|
(function (_param) {
|
|
var x = _param.x,
|
|
y = _objectWithoutProperties(_param, ["x"]);
|
|
});
|
|
|
|
var _o;
|
|
var ref;
|
|
_o = o, z = _objectWithoutProperties(_o, ['x', 'y']), ref = _o, x = ref.x, y = ref.y, ref, _o;
|
|
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_const
|
|
test_exec!(
|
|
syntax(),
|
|
|_| destructuring(Default::default()),
|
|
destructuring_const_exec,
|
|
r#"
|
|
const getState = () => ({});
|
|
|
|
const { data: { courses: oldCourses = [] } = {} } = getState();
|
|
|
|
expect(oldCourses).toEqual([]);
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_assignment_expression_pattern
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
),
|
|
destructuring_assignment_expression_pattern,
|
|
r#"
|
|
var z = {};
|
|
var { x: { y } = {} } = z;
|
|
|
|
"#,
|
|
r#"
|
|
var z = {};
|
|
var tmp = z.x, y = (tmp === void 0 ? {} : tmp).y;
|
|
"#
|
|
);
|
|
|
|
// destructuring_object_advanced
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
),
|
|
destructuring_object_advanced,
|
|
r#"
|
|
var rect = {};
|
|
var {topLeft: {x: x1, y: y1}, bottomRight: {x: x2, y: y2}} = rect;
|
|
var { 3: foo, 5: bar } = [0, 1, 2, 3, 4, 5, 6];
|
|
|
|
"#,
|
|
r#"
|
|
var rect = {};
|
|
var _topLeft = rect.topLeft,
|
|
x1 = _topLeft.x,
|
|
y1 = _topLeft.y,
|
|
_bottomRight = rect.bottomRight,
|
|
x2 = _bottomRight.x,
|
|
y2 = _bottomRight.y;
|
|
var ref = [0, 1, 2, 3, 4, 5, 6],
|
|
foo = ref[3],
|
|
bar = ref[5];
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_spread
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
),
|
|
destructuring_spread,
|
|
r#"
|
|
function isSorted([x, y, ...wow]) {
|
|
if (!zs.length) return true
|
|
if (y > x) return isSorted(zs)
|
|
return false
|
|
}
|
|
|
|
"#,
|
|
r#"
|
|
function isSorted(param) {
|
|
var _param = _toArray(param),
|
|
x = _param[0],
|
|
y = _param[1],
|
|
wow = _param.slice(2);
|
|
|
|
if (!zs.length) return true;
|
|
if (y > x) return isSorted(zs);
|
|
return false;
|
|
}
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_mixed
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
),
|
|
destructuring_mixed,
|
|
r#"
|
|
var rect = {};
|
|
var {topLeft: [x1, y1], bottomRight: [x2, y2] } = rect;
|
|
|
|
"#,
|
|
r#"
|
|
var rect = {};
|
|
|
|
var _topLeft = _slicedToArray(rect.topLeft, 2),
|
|
x1 = _topLeft[0],
|
|
y1 = _topLeft[1],
|
|
_bottomRight = _slicedToArray(rect.bottomRight, 2),
|
|
x2 = _bottomRight[0],
|
|
y2 = _bottomRight[1];
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_assignment_statement
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
destructuring(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default())
|
|
),
|
|
destructuring_assignment_statement,
|
|
r#"
|
|
[a, b] = f();
|
|
"#,
|
|
r#"
|
|
var ref;
|
|
ref = f(), a = ref[0], b = ref[1], ref;
|
|
"#
|
|
);
|
|
|
|
// destructuring_array
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_array,
|
|
r#"
|
|
var [a, [b], [c]] = ["hello", [", ", "junk"], ["world"]];
|
|
[a, [b], [c]] = ["hello", [", ", "junk"], ["world"]];
|
|
|
|
"#,
|
|
r#"
|
|
var a = 'hello', ref = [', ', 'junk'], b = ref[0], c = 'world';
|
|
a = 'hello', [b] = [', ', 'junk'], [c] = ['world'];
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_assignment_arrow_function_no_block
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_assignment_arrow_function_no_block,
|
|
r#"
|
|
() => [a, b] = [1, 2]
|
|
|
|
"#,
|
|
r#"
|
|
var ref;
|
|
()=>(ref = [1, 2], a = ref[0], b = ref[1], ref)
|
|
"#
|
|
);
|
|
|
|
// destructuring_issue_9834
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_issue_9834,
|
|
r#"
|
|
const input = {};
|
|
|
|
const {
|
|
given_name: givenName,
|
|
'last_name': lastName,
|
|
[`country`]: country,
|
|
[prefix + 'state']: state,
|
|
[`${prefix}consents`]: consents,
|
|
...rest
|
|
} = input;
|
|
|
|
"#,
|
|
r#"
|
|
var input = {};
|
|
|
|
var key = prefix + 'state',
|
|
key1 = `${prefix}consents`,
|
|
givenName = input.given_name,
|
|
lastName = input['last_name'],
|
|
country = input[`country`],
|
|
state = input[key],
|
|
consents = input[key1],
|
|
rest = _objectWithoutProperties(input, ['given_name', 'last_name', `country`, key, key1].map(_toPropertyKey));
|
|
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_number_key_with_object_rest_spread
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
object_rest_spread(Default::default()),
|
|
destructuring(Default::default())
|
|
),
|
|
destructuring_number_key_with_object_rest_spread_exec,
|
|
r#"
|
|
const foo = {
|
|
1: "a",
|
|
2: "b",
|
|
3: "c",
|
|
};
|
|
|
|
const { [1]: bar, ...rest } = foo;
|
|
|
|
expect(bar).toBe("a");
|
|
expect(rest).toEqual({ 2: "b", 3: "c" });
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_for_in
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_for_in,
|
|
r#"
|
|
for (var [name, value] in obj) {
|
|
print("Name: " + name + ", Value: " + value);
|
|
}
|
|
|
|
for ([name, value] in obj) {
|
|
print("Name: " + name + ", Value: " + value);
|
|
}
|
|
|
|
"#,
|
|
r#"
|
|
for(var ref2 in obj){
|
|
var _ref = _slicedToArray(ref2, 2), name = _ref[0], value = _ref[1];
|
|
print('Name: ' + name + ', Value: ' + value);
|
|
}
|
|
var ref1;
|
|
for(ref in obj){
|
|
ref1 = ref, name = ref1[0], value = ref1[1], ref1;
|
|
print('Name: ' + name + ', Value: ' + value);
|
|
}"#
|
|
);
|
|
|
|
// destructuring_issue_5744
|
|
test!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_issue_5744,
|
|
r#"
|
|
if (true) [a, b] = [b, a];
|
|
|
|
"#,
|
|
r#"
|
|
var ref;
|
|
if (true) ref = [b, a], a = ref[0], b = ref[1], ref;
|
|
|
|
"#
|
|
);
|
|
|
|
// destructuring_spread_generator
|
|
test_exec!(
|
|
syntax(),
|
|
|_| chain!(
|
|
spread(spread::Config {
|
|
..Default::default()
|
|
}),
|
|
parameters(),
|
|
destructuring(Default::default()),
|
|
block_scoping(),
|
|
object_rest_spread(Default::default()),
|
|
),
|
|
destructuring_spread_generator_exec,
|
|
r#"
|
|
function* f() {
|
|
for (var i = 0; i < 3; i++) {
|
|
yield i;
|
|
}
|
|
}
|
|
var [...xs] = f();
|
|
expect(xs).toEqual([0, 1, 2]);
|
|
|
|
"#
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
custom_call,
|
|
"foo([a, b] = [1, 2])",
|
|
"var ref;
|
|
foo((ref = [1, 2], a = ref[0], b = ref[1], ref));"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_1477_1,
|
|
"
|
|
const [ { a: a_ = 1 } ] = b
|
|
",
|
|
"
|
|
const ref = b[0], tmp = ref.a, a_ = tmp === void 0 ? 1 : tmp;
|
|
"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_1477_2,
|
|
"
|
|
async function f(a, b) {
|
|
const [ { a: a_ = 1 } ] = JSON.parse(b)
|
|
}
|
|
",
|
|
"
|
|
async function f(a, b) {
|
|
const ref = JSON.parse(b), ref1 = ref[0], tmp = ref1.a, a_ = tmp === void 0 ? 1 : tmp;
|
|
}
|
|
"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_1477_3,
|
|
"
|
|
const [ a = 1 ] = b
|
|
",
|
|
"
|
|
const tmp = b[0], a = tmp === void 0 ? 1 : tmp;
|
|
"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
issue_1477_4,
|
|
"
|
|
[ a = 1 ] = b
|
|
",
|
|
"
|
|
var ref, ref1;
|
|
ref = b, ref1 = ref[0], a = ref1 === void 0 ? 1 : ref1, ref;
|
|
"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
next_001,
|
|
"
|
|
const { NODE_ENV }= process.env;
|
|
",
|
|
"
|
|
const NODE_ENV = process.env.NODE_ENV;
|
|
"
|
|
);
|
|
|
|
test!(
|
|
syntax(),
|
|
|_| tr(),
|
|
next_002,
|
|
"
|
|
({ NODE_ENV }= process.env);
|
|
",
|
|
"
|
|
NODE_ENV = process.env.NODE_ENV;
|
|
"
|
|
);
|