6c1573bc08
The downlevel decorator transform (commonly used in the CLI and other
tooling of the ecosystem for enabling JIT ES2015+), is currently
incorrectly dealing with nested classes.
The transform will accidentally visit nested classes (in a constructor)
multiple times and generate duplicated instances of the `ctorParameters`
fields. This does not sound like an issue at first, but the duplicated
`ctorParameters` fields will miss significant type information that has
been elided by the first visit, resulting in generated code like the
following:
```js
let MyClass = /* @__PURE__ */ __name(class MyClass extends UpgradeNg1ComponentAdapter {
constructor(scope, injector3, elementRef) {
}
}, "MyClass");
MyClass.ctorParameters = () => [
{ type: void 0, decorators: [{ type: Inject, args: [$SCOPE] }] },
{ type: Injector },
{ type: ElementRef }
];
MyClass.ctorParameters = () => [
{ type: void 0 }, // <---- NOTE!
{ type: Injector },
{ type: ElementRef }
];
```
PR Close #44281
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| .vscode | ||
| .yarn | ||
| aio | ||
| docs | ||
| goldens | ||
| integration | ||
| modules | ||
| packages | ||
| scripts | ||
| third_party | ||
| tools | ||
| .bazelignore | ||
| .bazelrc | ||
| .bazelversion | ||
| .clang-format | ||
| .editorconfig | ||
| .gitattributes | ||
| .gitignore | ||
| .gitmessage | ||
| .mailmap | ||
| .npmrc | ||
| .nvmrc | ||
| .prettierrc | ||
| .pullapprove.yml | ||
| .yarnrc | ||
| browser-providers.conf.js | ||
| BUILD.bazel | ||
| CHANGELOG.md | ||
| CODE_OF_CONDUCT.md | ||
| CONTRIBUTING.md | ||
| gulpfile.js | ||
| karma-js.conf.js | ||
| LICENSE | ||
| package.json | ||
| README.md | ||
| renovate.json | ||
| test-events.js | ||
| tsconfig-tslint.json | ||
| tslint.json | ||
| WORKSPACE | ||
| yarn.lock | ||
| yarn.lock.readme.md | ||
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