mirror of
https://github.com/swc-project/swc.git
synced 2024-12-21 04:32:01 +03:00
2c477780f0
swc_ecma_parser: - Don't panic on `typeof import(T)`. (#2198) - Fix parsing of ternary. (#2196) swc_ecma_transforms_base: - `fixer`: Handle unary in lhs of an exponentation expression. (#2191) swc_ecma_transforms_compat: - Use variable for `this` in arrow expressions. (#2212) swc_ecma_visit: - Add a trait `InjectVars`. node_swc: - Increease recursion limit while deserializing. (#2223)
958 lines
23 KiB
Rust
958 lines
23 KiB
Rust
use swc_common::{chain, Mark};
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use swc_ecma_parser::Syntax;
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use swc_ecma_transforms_compat::{
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es2015,
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es2015::{block_scoping, for_of::for_of},
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es2017::async_to_generator,
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};
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use swc_ecma_transforms_testing::{compare_stdout, test, test_exec, Tester};
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test!(
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::swc_ecma_parser::Syntax::default(),
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|_| block_scoping(),
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for_loop,
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"for (const key in obj) {
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const bar = obj[key];
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let qux;
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let fog;
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if (Array.isArray(bar)) {
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qux = bar[0];
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fog = bar[1];
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} else {
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qux = bar;
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}
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baz(key, qux, fog);
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}",
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"for (var key in obj) {
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var bar = obj[key];
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var qux = void 0;
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var fog = void 0;
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if (Array.isArray(bar)) {
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qux = bar[0];
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fog = bar[1];
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} else {
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qux = bar;
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}
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baz(key, qux, fog);
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}"
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);
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test!(
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::swc_ecma_parser::Syntax::default(),
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|_| block_scoping(),
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for_let_loop,
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"let functions = [];
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for (let i = 0; i < 10; i++) {
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functions.push(function() {
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console.log(i);
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});
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}
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functions[0]();
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functions[7]();",
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"
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var _loop = function(i) {
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functions.push(function() {
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console.log(i);
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});
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};
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var functions = [];
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for(var i = 0; i < 10; i++)_loop(i);
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functions[0]();
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functions[7]();
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"
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);
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test_exec!(
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::swc_ecma_parser::Syntax::default(),
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|_| block_scoping(),
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for_let_loop_exec,
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"let functions = [];
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for (let i = 0; i < 10; i++) {
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functions.push(function() {
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return i;
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});
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}
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expect(functions[0]()).toBe(0);
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expect(functions[7]()).toBe(7);
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"
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);
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test_exec!(
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::swc_ecma_parser::Syntax::default(),
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|_| block_scoping(),
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for_let_of_exec,
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"let functions = [];
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for (let i of [1, 3, 5, 7, 9]) {
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functions.push(function() {
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return i;
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});
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}
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expect(functions[0]()).toBe(1);
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expect(functions[1]()).toBe(3);
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"
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);
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test_exec!(
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::swc_ecma_parser::Syntax::default(),
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|_| chain!(for_of(Default::default()), block_scoping()),
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issue_609_1,
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"let functions = [];
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for (let i of [1, 3, 5, 7, 9]) {
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functions.push(function() {
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return i;
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});
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}
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expect(functions[0]()).toBe(1);
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expect(functions[1]()).toBe(3);
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"
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);
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test!(
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::swc_ecma_parser::Syntax::default(),
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|_| block_scoping(),
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issue_662,
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"function foo(parts) {
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let match = null;
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for (let i = 1; i >= 0; i--) {
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for (let j = 0; j >= 0; j--) {
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match = parts[i][j];
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if (match) {
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break;
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}
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}
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if (match) {
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break;
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}
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}
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return match;
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}
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foo();",
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"function foo(parts) {
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var match = null;
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for (var i = 1; i >= 0; i--) {
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for (var j = 0; j >= 0; j--) {
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match = parts[i][j];
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if (match) {
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break;
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}
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}
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if (match) {
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break;
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}
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}
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return match;
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}
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foo();"
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);
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test!(
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::swc_ecma_parser::Syntax::default(),
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|_| block_scoping(),
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issue_686,
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"module.exports = function(values) {
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var vars = [];
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var elem = null, name, val;
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for (var i = 0; i < this.elements.length; i++) {
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elem = this.elements[i];
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name = elem.name;
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if (!name) continue;
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val = values[name];
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if (val == null) val = '';
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switch (elem.type) {
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case 'submit':
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break;
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case 'radio':
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case 'checkbox':
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elem.checked = val.some(function(str) {
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return str.toString() == elem.value;
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});
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break;
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case 'select-multiple':
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elem.fill(val);
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break;
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case 'textarea':
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elem.innerText = val;
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break;
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case 'hidden':
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break;
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default:
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if (elem.fill) {
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elem.fill(val);
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} else {
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elem.value = val;
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}
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break;
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}
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}
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return vars;
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};",
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"
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module.exports = function(values) {
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var _this = this, _loop = function(i) {
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elem = _this.elements[i];
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name = elem.name;
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if (!name) return 'continue';
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val = values[name];
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if (val == null) val = '';
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switch(elem.type){
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case 'submit':
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break;
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case 'radio':
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case 'checkbox':
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elem.checked = val.some(function(str) {
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return str.toString() == elem.value;
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});
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break;
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case 'select-multiple':
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elem.fill(val);
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break;
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case 'textarea':
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elem.innerText = val;
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break;
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case 'hidden':
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break;
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default:
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if (elem.fill) {
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elem.fill(val);
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} else {
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elem.value = val;
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}
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break;
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}
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};
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var vars = [];
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var elem = null, name, val;
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for(var i = 0; i < this.elements.length; i++){
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var _ret = _loop(i);
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if (_ret === 'continue') continue;
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}
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return vars;
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};
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"
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);
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test_exec!(
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::swc_ecma_parser::Syntax::default(),
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|_| block_scoping(),
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issue_723_1,
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"function foo() {
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const lod = { 0: { mig: 'bana' }};
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for (let i = 0; i < 1; i++) {
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const { mig } = lod[i];
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return false;
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(zap) => zap === mig;
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}
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return true;
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}
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expect(foo()).toBe(false);
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"
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);
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test_exec!(
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::swc_ecma_parser::Syntax::default(),
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|Tester { comments, .. }| {
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let mark = Mark::fresh(Mark::root());
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es2015::es2015(
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mark,
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Some(comments.clone()),
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es2015::Config {
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..Default::default()
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},
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)
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},
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issue_723_2,
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"function foo() {
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const lod = { 0: { mig: 'bana' }};
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for (let i = 0; i < 1; i++) {
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const { mig } = lod[i];
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return false;
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(zap) => zap === mig;
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}
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return true;
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}
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expect(foo()).toBe(false);
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"
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);
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test!(
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Syntax::default(),
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|Tester { comments, .. }| {
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let mark = Mark::fresh(Mark::root());
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es2015::es2015(
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mark,
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Some(comments.clone()),
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es2015::Config {
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..Default::default()
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},
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)
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},
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issue_1022_1,
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"
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for (let i = 0; i < 5; i++) {
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console.log(i++, [2].every(x => x != i))
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}
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",
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r#"
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var _loop = function(i1) {
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console.log(i1++, [
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2
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].every(function(x) {
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return x != i1;
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}));
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i = i1, void 0;
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};
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for(var i = 0; i < 5; i++)_loop(i);
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"#
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);
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test!(
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Syntax::default(),
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|Tester { comments, .. }| {
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let mark = Mark::fresh(Mark::root());
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es2015::es2015(
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mark,
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Some(comments.clone()),
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es2015::Config {
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..Default::default()
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},
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)
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},
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issue_1022_2,
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"
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for (let i = 0; i < 5; i++) {
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console.log(i++, [2].every(x => x != i))
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if (i % 2 === 0) continue
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}
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",
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r#"
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var _loop = function(i1) {
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console.log(i1++, [
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2
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].every(function(x) {
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return x != i1;
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}));
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if (i1 % 2 === 0) return i = i1, "continue";
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i = i1, void 0;
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};
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for(var i = 0; i < 5; i++){
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var _ret = _loop(i);
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if (_ret === "continue") continue;
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}
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"#
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);
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test!(
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Syntax::default(),
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|Tester { comments, .. }| {
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let mark = Mark::fresh(Mark::root());
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es2015::es2015(
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mark,
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Some(comments.clone()),
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es2015::Config {
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..Default::default()
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},
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)
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},
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issue_1022_3,
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"
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for (let i = 0; i < 5; i++) {
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console.log(i++, [2].every(x => x != i))
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if (i % 2 === 0) break
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}
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",
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r#"
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var _loop = function(i1) {
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console.log(i1++, [
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2
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].every(function(x) {
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return x != i1;
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}));
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if (i1 % 2 === 0) return i = i1, "break";
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i = i1, void 0;
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};
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for(var i = 0; i < 5; i++){
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var _ret = _loop(i);
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if (_ret === "break") break;
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}
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"#
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);
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test!(
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Syntax::default(),
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|Tester { comments, .. }| {
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let mark = Mark::fresh(Mark::root());
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es2015::es2015(
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mark,
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Some(comments.clone()),
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es2015::Config {
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..Default::default()
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},
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)
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},
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issue_1021_1,
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"
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class C {
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m() {
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for (let x = 0; x < 10; x++) console.log(this, y => y != x)
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}
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}
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",
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r#"
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var C = function() {
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"use strict";
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function C() {
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_classCallCheck(this, C);
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}
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_createClass(C, [
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{
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key: "m",
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value: function m() {
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var _this = this, _loop = function(x) {
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console.log(_this, function(y) {
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return y != x;
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});
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};
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for(var x = 0; x < 10; x++)_loop(x);
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}
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}
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]);
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return C;
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}();
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"#
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);
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test!(
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Syntax::default(),
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|Tester { comments, .. }| {
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let mark = Mark::fresh(Mark::root());
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es2015::es2015(
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mark,
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Some(comments.clone()),
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es2015::Config {
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..Default::default()
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},
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)
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},
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issue_1036_1,
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"
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async function foo() {
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await Promise.all([[1], [2], [3]].map(
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async ([a]) => Promise.resolve().then(() => a * 2))
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)
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}
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",
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"
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async function foo() {
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await Promise.all([
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[
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1
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],
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[
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2
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],
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[
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3
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]
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].map(async function(param) {
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var _param = _slicedToArray(param, 1), a = _param[0];
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return Promise.resolve().then(function() {
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return a * 2;
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});
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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::default(),
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|Tester { comments, .. }| {
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let mark = Mark::fresh(Mark::root());
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chain!(
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async_to_generator(),
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es2015::es2015(
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mark,
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Some(comments.clone()),
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es2015::Config {
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..Default::default()
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},
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)
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)
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},
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|
issue_1036_2,
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|
"
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async function foo() {
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await Promise.all([[1], [2], [3]].map(
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async ([a]) => Promise.resolve().then(() => a * 2))
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)
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}
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",
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r#"
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var regeneratorRuntime = require("regenerator-runtime");
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function _foo() {
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_foo = _asyncToGenerator(regeneratorRuntime.mark(function _callee() {
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return regeneratorRuntime.wrap(function _callee$(_ctx) {
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while(1)switch(_ctx.prev = _ctx.next){
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case 0:
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_ctx.next = 2;
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return Promise.all([
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[
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1
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],
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[
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2
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],
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[
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3
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]
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].map(_asyncToGenerator(regeneratorRuntime.mark(function _callee(param) {
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var _param = _slicedToArray(param, 1), a = _param[0];
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return regeneratorRuntime.wrap(function _callee$(_ctx) {
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while(1)switch(_ctx.prev = _ctx.next){
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case 0:
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return _ctx.abrupt("return", Promise.resolve().then(function() {
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return a * 2;
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}));
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case 1:
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case "end":
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return _ctx.stop();
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}
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}, _callee);
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}))));
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case 2:
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case "end":
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return _ctx.stop();
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}
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}, _callee);
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}));
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return _foo.apply(this, arguments);
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}
|
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function foo() {
|
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return _foo.apply(this, arguments);
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}
|
|
|
|
"#
|
|
);
|
|
|
|
test_exec!(
|
|
Syntax::default(),
|
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|Tester { comments, .. }| {
|
|
let mark = Mark::fresh(Mark::root());
|
|
chain!(
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|
async_to_generator(),
|
|
es2015::es2015(
|
|
mark,
|
|
Some(comments.clone()),
|
|
es2015::Config {
|
|
..Default::default()
|
|
},
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|
)
|
|
)
|
|
},
|
|
issue_1036_3,
|
|
"
|
|
const x = async function() {
|
|
return await Promise.all([[1], [2], [3]].map(
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async ([a]) => Promise.resolve().then(() => a * 2))
|
|
)
|
|
};
|
|
return x().then(x => {
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expect(x).toEqual([2, 4, 6])
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})
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|_| block_scoping(),
|
|
issue_1231_1,
|
|
"
|
|
function combineOverlappingMatches(matches) {
|
|
let hasOverlaps = false
|
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|
|
for (let i = matches.length - 1; i >= 0; i--) {
|
|
let currentMatch = matches[i]
|
|
let overlap = matches.find(match => {
|
|
return match !== currentMatch && match.itemsType === currentMatch.itemsType
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|
})
|
|
|
|
if (overlap) {
|
|
hasOverlaps = true
|
|
matches.splice(i, 1)
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|
}
|
|
}
|
|
|
|
if (hasOverlaps) {
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|
combineOverlappingMatches(matches)
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|
}
|
|
}
|
|
|
|
combineOverlappingMatches([1])
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|
",
|
|
"
|
|
function combineOverlappingMatches(matches) {
|
|
var _loop = function(i) {
|
|
var currentMatch = matches[i];
|
|
var overlap = matches.find((match)=>{
|
|
return match !== currentMatch && match.itemsType === currentMatch.itemsType;
|
|
});
|
|
if (overlap) {
|
|
hasOverlaps = true;
|
|
matches.splice(i, 1);
|
|
}
|
|
};
|
|
var hasOverlaps = false;
|
|
for(var i = matches.length - 1; i >= 0; i--)_loop(i);
|
|
if (hasOverlaps) {
|
|
combineOverlappingMatches(matches);
|
|
}
|
|
}
|
|
combineOverlappingMatches([
|
|
1
|
|
]);
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|_| block_scoping(),
|
|
issue_1415_1,
|
|
"
|
|
export function test(items) {
|
|
const infoMap = new WeakMap();
|
|
for (let i = 0; i < items.length; i += 1) {
|
|
const item = items[i];
|
|
let info;
|
|
switch (item.type) {
|
|
case 'branch1':
|
|
info = item.method1();
|
|
break;
|
|
case 'branch2':
|
|
info = item.method2();
|
|
break;
|
|
case 'branch3':
|
|
info = item.method3(
|
|
Object.fromEntries(
|
|
item.subItems.map((t) => [item.alias ?? t.name, getInfo(t)])
|
|
)
|
|
);
|
|
break;
|
|
default:
|
|
throw new Error('boom');
|
|
}
|
|
infoMap.set(item, info); // important
|
|
}
|
|
|
|
function getInfo(item) {
|
|
if (!infoMap.has(item)) {
|
|
throw new Error('no info yet');
|
|
}
|
|
return infoMap.get(item);
|
|
}
|
|
}
|
|
",
|
|
"
|
|
export function test(items) {
|
|
var _loop = function(i) {
|
|
var item = items[i];
|
|
var info = void 0;
|
|
switch(item.type){
|
|
case 'branch1':
|
|
info = item.method1();
|
|
break;
|
|
case 'branch2':
|
|
info = item.method2();
|
|
break;
|
|
case 'branch3':
|
|
info = item.method3(Object.fromEntries(item.subItems.map((t)=>[
|
|
item.alias ?? t.name,
|
|
getInfo(t)
|
|
]
|
|
)));
|
|
break;
|
|
default:
|
|
throw new Error('boom');
|
|
}
|
|
infoMap.set(item, info);
|
|
};
|
|
var infoMap = new WeakMap();
|
|
for(var i = 0; i < items.length; i += 1)_loop(i);
|
|
function getInfo(item) {
|
|
if (!infoMap.has(item)) {
|
|
throw new Error('no info yet');
|
|
}
|
|
return infoMap.get(item);
|
|
}
|
|
}
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|Tester { comments, .. }| {
|
|
let mark = Mark::fresh(Mark::root());
|
|
es2015::es2015(
|
|
mark,
|
|
Some(comments.clone()),
|
|
es2015::Config {
|
|
..Default::default()
|
|
},
|
|
)
|
|
},
|
|
arguments_loop,
|
|
"
|
|
function test() {
|
|
for (var i = 0; i < arguments.length; i++) {
|
|
var arg = arguments[i];
|
|
console.log((() => arg)());
|
|
}
|
|
}
|
|
",
|
|
"
|
|
function test() {
|
|
var _arguments = arguments, _loop = function(i) {
|
|
var arg = _arguments[i];
|
|
console.log(function() {
|
|
return arg;
|
|
}());
|
|
};
|
|
for(var i = 0; i < arguments.length; i++)_loop(i);
|
|
}
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|Tester { comments, .. }| {
|
|
let mark = Mark::fresh(Mark::root());
|
|
es2015::es2015(
|
|
mark,
|
|
Some(comments.clone()),
|
|
es2015::Config {
|
|
..Default::default()
|
|
},
|
|
)
|
|
},
|
|
arguments_loop_member,
|
|
"
|
|
function test(a) {
|
|
for (var i = 0; i < a.arguments.length; i++) {
|
|
var arg = a.arguments[i];
|
|
console.log((() => arg)());
|
|
}
|
|
}
|
|
",
|
|
"
|
|
function test(a) {
|
|
var _loop = function(i) {
|
|
var arg = a.arguments[i];
|
|
console.log(function() {
|
|
return arg;
|
|
}());
|
|
};
|
|
for(var i = 0; i < a.arguments.length; i++)_loop(i);
|
|
}
|
|
"
|
|
);
|
|
|
|
compare_stdout!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|Tester { comments, .. }| {
|
|
let mark = Mark::fresh(Mark::root());
|
|
es2015::es2015(
|
|
mark,
|
|
Some(comments.clone()),
|
|
es2015::Config {
|
|
..Default::default()
|
|
},
|
|
)
|
|
},
|
|
arguments_arrow,
|
|
"
|
|
function test() {
|
|
for (var i = 0; i < arguments.length; i++) {
|
|
console.log((() => arguments[i])());
|
|
}
|
|
}
|
|
|
|
test(1, 2, 3);
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|Tester { comments, .. }| {
|
|
let mark = Mark::fresh(Mark::root());
|
|
es2015::es2015(
|
|
mark,
|
|
Some(comments.clone()),
|
|
es2015::Config {
|
|
..Default::default()
|
|
},
|
|
)
|
|
},
|
|
arguments_function,
|
|
"
|
|
function test() {
|
|
for (var i = 0; i < arguments.length; i++) {
|
|
console.log((function () { return arguments[i] })());
|
|
}
|
|
}
|
|
",
|
|
"
|
|
function test() {
|
|
var _loop = function(i) {
|
|
console.log(function() {
|
|
return arguments[i];
|
|
}());
|
|
};
|
|
for(var i = 0; i < arguments.length; i++)_loop(i);
|
|
}
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|_| block_scoping(),
|
|
issue_1462_1,
|
|
"
|
|
export default function _objectSpread(target) {
|
|
for (var i = 1; i < arguments.length; i++) {
|
|
var source = arguments[i] != null ? arguments[i] : {};
|
|
var ownKeys = Object.keys(source);
|
|
|
|
if (typeof Object.getOwnPropertySymbols === 'function') {
|
|
ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
|
|
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
|
|
}));
|
|
}
|
|
|
|
ownKeys.forEach(function (key) {
|
|
defineProperty(target, key, source[key]);
|
|
});
|
|
}
|
|
|
|
return target;
|
|
}
|
|
",
|
|
"
|
|
export default function _objectSpread(target) {
|
|
var _arguments = arguments, _loop = function(i) {
|
|
var source = _arguments[i] != null ? _arguments[i] : {
|
|
};
|
|
var ownKeys = Object.keys(source);
|
|
if (typeof Object.getOwnPropertySymbols === 'function') {
|
|
ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function(sym) \
|
|
{
|
|
return Object.getOwnPropertyDescriptor(source, sym).enumerable;
|
|
}));
|
|
}
|
|
ownKeys.forEach(function(key) {
|
|
defineProperty(target, key, source[key]);
|
|
});
|
|
};
|
|
for(var i = 1; i < arguments.length; i++)_loop(i);
|
|
return target;
|
|
}
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|_| block_scoping(),
|
|
issue_2027_1,
|
|
"
|
|
const keys = {
|
|
a: 1,
|
|
b: 2,
|
|
}
|
|
|
|
const controller = {}
|
|
|
|
for (const key in keys) {
|
|
controller[key] = (c, ...d) => {
|
|
console.log(keys[key])
|
|
}
|
|
}
|
|
",
|
|
"
|
|
var _loop = function(key) {
|
|
controller[key] = (c, ...d)=>{
|
|
console.log(keys[key]);
|
|
};
|
|
};
|
|
var keys = {
|
|
a: 1,
|
|
b: 2
|
|
};
|
|
var controller = {
|
|
};
|
|
for(var key in keys)_loop(key);
|
|
"
|
|
);
|
|
|
|
test!(
|
|
::swc_ecma_parser::Syntax::default(),
|
|
|t| {
|
|
let mark = Mark::fresh(Mark::root());
|
|
|
|
es2015(mark, Some(t.comments.clone()), Default::default())
|
|
},
|
|
issue_2027_2,
|
|
"
|
|
const keys = {
|
|
a: 1,
|
|
b: 2,
|
|
}
|
|
|
|
const controller = {}
|
|
|
|
for (const key in keys) {
|
|
controller[key] = (c, ...d) => {
|
|
console.log(keys[key])
|
|
}
|
|
}
|
|
",
|
|
"
|
|
var _loop = function(key) {
|
|
controller[key] = function(c) {
|
|
for(var _len = arguments.length, d = new Array(_len > 1 ? _len - 1 : 0), _key = 1; \
|
|
_key < _len; _key++){
|
|
d[_key - 1] = arguments[_key];
|
|
}
|
|
console.log(keys[key]);
|
|
};
|
|
};
|
|
var keys = {
|
|
a: 1,
|
|
b: 2
|
|
};
|
|
var controller = {
|
|
};
|
|
for(var key in keys)_loop(key);
|
|
"
|
|
);
|