update handling of decorators to support emitting ES2022+ #3614
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| Path | Location | Error | Message |
|---|---|---|---|
| src/compiler/transformers/decorators-to-static/convert-decorators.ts | (296, 13) | TS2322 | Type 'DeclarationName | undefined' is not assignable to type 'DeclarationName'. Type 'undefined' is not assignable to type 'DeclarationName'. |
| src/compiler/transformers/decorators-to-static/convert-decorators.ts | (375, 22) | TS2532 | Object is possibly 'undefined'. |
| src/compiler/transformers/decorators-to-static/convert-decorators.ts | (386, 30) | TS2345 | Argument of type 'Block | undefined' is not assignable to parameter of type 'Block'. Type 'undefined' is not assignable to type 'Block'. |
| src/compiler/transformers/decorators-to-static/convert-decorators.ts | (399, 9) | TS2345 | Argument of type 'undefined' is not assignable to parameter of type 'readonly ParameterDeclaration[]'. |
| src/compiler/transformers/decorators-to-static/convert-decorators.ts | (418, 3) | TS2322 | Type 'boolean | undefined' is not assignable to type 'boolean'. |
| src/compiler/transformers/test/transpile.ts | (63, 20) | TS2345 | Argument of type 'Config | null | undefined' is not assignable to parameter of type 'Config'. Type 'undefined' is not assignable to type 'Config'. |
| src/compiler/transformers/test/transpile.ts | (63, 51) | TS2532 | Object is possibly 'undefined'. |
| src/compiler/transformers/test/transpile.ts | (102, 73) | TS2345 | Argument of type 'null' is not assignable to parameter of type 'CollectionCompilerMeta'. |
| src/compiler/transformers/test/transpile.ts | (107, 10) | TS2454 | Variable 'outputText' is used before being assigned. |
| src/compiler/transformers/test/transpile.ts | (108, 18) | TS2454 | Variable 'outputText' is used before being assigned. |
| src/compiler/transformers/test/transpile.ts | (132, 5) | TS2454 | Variable 'outputText' is used before being assigned. |
reports and statistics
Our most error-prone files
| Path | Error Count |
|---|---|
| src/compiler/config/test/validate-dev-server.spec.ts | 45 |
| src/compiler/config/test/validate-output-www.spec.ts | 40 |
| src/screenshot/connector-base.ts | 40 |
| src/dev-server/index.ts | 38 |
| src/mock-doc/serialize-node.ts | 36 |
| src/compiler/sys/tests/in-memory-fs.spec.ts | 34 |
| src/screenshot/screenshot-compare.ts | 33 |
| src/compiler/transformers/test/parse-props.spec.ts | 32 |
| src/dev-server/server-process.ts | 32 |
| src/runtime/vdom/vdom-render.ts | 31 |
| src/compiler/sys/typescript/typescript-config.ts | 28 |
| src/compiler/build/build-stats.ts | 27 |
| src/compiler/output-targets/dist-lazy/generate-lazy-module.ts | 26 |
| src/compiler/prerender/prerender-main.ts | 25 |
| src/sys/node/test/worker-manager.spec.ts | 24 |
| src/compiler/style/test/optimize-css.spec.ts | 23 |
| src/compiler/sys/in-memory-fs.ts | 23 |
| src/runtime/update-component.ts | 23 |
| src/compiler/config/test/validate-paths.spec.ts | 22 |
| src/compiler/bundle/dev-module.ts | 21 |
Our most common errors
| Typescript Error Code | Count | Error messages |
|---|---|---|
| TS2532 | 648 | Error messagesObject is possibly 'undefined'. |
| TS2345 | 618 | Error messagesArgument of type 'CompilerSystem | undefined' is not assignable to parameter of type 'CompilerSystem'.Type 'undefined' is not assignable to type 'CompilerSystem'. Argument of type 'string | undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'Promise<(() => void) | null>' is not assignable to parameter of type 'Promise<() => void>'. Argument of type 'null' is not assignable to parameter of type 'BuildResultsComponentGraph'. Argument of type 'DevServerConfig | undefined' is not assignable to parameter of type 'StencilDevServerConfig'. Type 'undefined' is not assignable to type 'StencilDevServerConfig'. Argument of type 'Promise<(() => void) | null>' is not assignable to parameter of type 'Promise<() => void>'. Type '(() => void) | null' is not assignable to type '() => void'. Type 'null' is not assignable to type '() => void'. Argument of type 'ComponentRuntimeHostListener[] | undefined' is not assignable to parameter of type 'ComponentRuntimeHostListener[]'. Type 'undefined' is not assignable to type 'ComponentRuntimeHostListener[]'. Argument of type 'HTMLScriptElement | null | undefined' is not assignable to parameter of type 'HTMLScriptElement'. Type 'undefined' is not assignable to type 'HTMLScriptElement'. Argument of type 'string | null' is not assignable to parameter of type 'string'. Type 'null' is not assignable to type 'string'. Argument of type 'Logger | undefined' is not assignable to parameter of type 'Logger'. Type 'undefined' is not assignable to type 'Logger'. Argument of type 'string[] | undefined' is not assignable to parameter of type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. Argument of type 'string' is not assignable to parameter of type 'never'. Argument of type 'Diagnostic[] | undefined' is not assignable to parameter of type 'readonly Diagnostic[]'. Type 'undefined' is not assignable to type 'readonly Diagnostic[]'. Argument of type 'boolean | undefined' is not assignable to parameter of type 'boolean'. Argument of type 'BuildConditionals | undefined' is not assignable to parameter of type 'BuildConditionals'. Type 'undefined' is not assignable to type 'BuildConditionals'. Argument of type 'Diagnostic[] | undefined' is not assignable to parameter of type 'Diagnostic[]'. Type 'undefined' is not assignable to type 'Diagnostic[]'. Argument of type 'WorkerMeta | undefined' is not assignable to parameter of type 'WorkerMeta'. Type 'undefined' is not assignable to type 'WorkerMeta'. Argument of type 'CopyTask[] | undefined' is not assignable to parameter of type 'boolean | CopyTask[]'. Argument of type 'CopyTask[] | undefined' is not assignable to parameter of type 'boolean | CopyTask[]'. Type 'undefined' is not assignable to type 'boolean | CopyTask[]'. Argument of type 'OutputTargetWww' is not assignable to parameter of type 'never'. Argument of type 'string | null | undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'Set<string | null>' is not assignable to parameter of type 'Set'. Type 'string | null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Argument of type 'Set<string | null>' is not assignable to parameter of type 'Set'. Argument of type 'RollupConfig | undefined' is not assignable to parameter of type 'RollupConfig'. Type 'undefined' is not assignable to type 'RollupConfig'. Argument of type '(string[] | undefined)[]' is not assignable to parameter of type 'string[][]'. Type 'string[] | undefined' is not assignable to type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. Argument of type 'ComponentCompilerMeta | undefined' is not assignable to parameter of type 'ComponentCompilerMeta'. Type 'undefined' is not assignable to type 'ComponentCompilerMeta'. Argument of type 'true | Object | undefined' is not assignable to parameter of type 'boolean | Object | null'. Type 'undefined' is not assignable to type 'boolean | Object | null'. Argument of type 'SourceTarget | undefined' is not assignable to parameter of type 'SourceTarget'. Type 'undefined' is not assignable to type 'SourceTarget'. Argument of type 'boolean | undefined' is not assignable to parameter of type 'boolean'. Type 'undefined' is not assignable to type 'boolean'. Argument of type '(string | undefined)[]' is not assignable to parameter of type 'string[]'. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type '(string | undefined)[]' is not assignable to parameter of type 'string[]'. Argument of type 'RollupSourceMap | undefined' is not assignable to parameter of type 'SourceMap'. Type 'undefined' is not assignable to type 'SourceMap'. Argument of type 'EntryModule | undefined' is not assignable to parameter of type 'EntryModule'. Type 'undefined' is not assignable to type 'EntryModule'. Argument of type '(Module | undefined)[]' is not assignable to parameter of type 'Module[]'. Type 'Module | undefined' is not assignable to type 'Module'. Type 'undefined' is not assignable to type 'Module'. Argument of type 'Document | null' is not assignable to parameter of type 'Document'. Type 'null' is not assignable to type 'Document'. Argument of type 'Document | null' is not assignable to parameter of type 'Node | MockNode'. Type 'null' is not assignable to type 'Node | MockNode'. Argument of type 'HydrateAnchorElement' is not assignable to parameter of type '{ [attrName: string]: string; }'. 'string' index signatures are incompatible. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'URL | null' is not assignable to parameter of type 'URL'. Type 'null' is not assignable to type 'URL'. Argument of type 'number | undefined' is not assignable to parameter of type 'number'. Type 'undefined' is not assignable to type 'number'. Argument of type 'SitemapXmpResults | null' is not assignable to parameter of type 'SitemapXmpResults'. Type 'null' is not assignable to type 'SitemapXmpResults'. Argument of type 'string | undefined' is not assignable to parameter of type 'string | URL'. Argument of type 'Map<string, string[]> | undefined' is not assignable to parameter of type 'Map<string, string[]>'. Type 'undefined' is not assignable to type 'Map<string, string[]>'. Argument of type 'undefined' is not assignable to parameter of type 'string'. Argument of type 'ServiceWorkerConfig | undefined' is not assignable to parameter of type 'ServiceWorkerConfig'. Type 'undefined' is not assignable to type 'ServiceWorkerConfig'. Argument of type 'string | undefined' is not assignable to parameter of type 'string | URL'. Type 'undefined' is not assignable to type 'string | URL'. Argument of type 'CssNode[] | null | undefined' is not assignable to parameter of type 'void | CssNode[]'. Argument of type 'CssNode[] | null | undefined' is not assignable to parameter of type 'void | CssNode[]'. Type 'null' is not assignable to type 'void | CssNode[]'. Argument of type 'null' is not assignable to parameter of type 'string'. Argument of type 'CompilerSystemCreateDirectoryOptions | undefined' is not assignable to parameter of type 'CompilerSystemCreateDirectoryOptions'. Type 'undefined' is not assignable to type 'CompilerSystemCreateDirectoryOptions'. Argument of type 'null' is not assignable to parameter of type 'CompilerFileWatcherEvent'. Argument of type 'null' is not assignable to parameter of type '{ access: (filePath: string) => Promise; accessSync: (filePath: string) => boolean; cancelDeleteDirectoriesFromDisk: (dirPaths: string[]) => void; cancelDeleteFilesFromDisk: (filePaths: string[]) => void; ... 17 more ...; writeFiles: (files: { ...; } | Map<...>, opts?: FsWriteOptions | undefined) => Promise...'. Argument of type 'undefined' is not assignable to parameter of type 'TypeChecker'. Argument of type 'CollectionBundleManifest[] | undefined' is not assignable to parameter of type 'any[]'. Type 'undefined' is not assignable to type 'any[]'. Argument of type 'Module | undefined' is not assignable to parameter of type 'Module'. Type 'undefined' is not assignable to type 'Module'. Argument of type 'NodeArray | undefined' is not assignable to parameter of type 'NodeArray | HeritageClause[]'. Type 'undefined' is not assignable to type 'NodeArray | HeritageClause[]'. Argument of type 'Block | undefined' is not assignable to parameter of type 'Block'. Type 'undefined' is not assignable to type 'Block'. Argument of type 'undefined' is not assignable to parameter of type 'readonly ParameterDeclaration[]'. Argument of type 'Expression | undefined' is not assignable to parameter of type 'Expression'. Type 'undefined' is not assignable to type 'Expression'. Argument of type 'Symbol | undefined' is not assignable to parameter of type 'Symbol'. Type 'undefined' is not assignable to type 'Symbol'. Argument of type 'TypeNode | undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type '(PropertyAssignment | null)[]' is not assignable to parameter of type 'readonly ObjectLiteralElementLike[]'. Type 'PropertyAssignment | null' is not assignable to type 'ObjectLiteralElementLike'. Type 'null' is not assignable to type 'ObjectLiteralElementLike'. Argument of type 'Signature | undefined' is not assignable to parameter of type 'Signature'. Type 'undefined' is not assignable to type 'Signature'. Argument of type '(PropertyAssignment | null)[]' is not assignable to parameter of type 'readonly ObjectLiteralElementLike[]'. Argument of type 'Identifier | undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'undefined' is not assignable to parameter of type 'readonly ClassElement[]'. Argument of type 'Config | null | undefined' is not assignable to parameter of type 'Config'. Type 'undefined' is not assignable to type 'Config'. Argument of type 'null' is not assignable to parameter of type 'CollectionCompilerMeta'. Argument of type 'PropertyName | undefined' is not assignable to parameter of type 'PropertyName'. Type 'undefined' is not assignable to type 'PropertyName'. Argument of type 'NamedExportBindings | undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'Declaration | undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'Identifier | undefined' is not assignable to parameter of type 'string | BindingName'. Type 'undefined' is not assignable to type 'string | BindingName'. Argument of type 'ScriptTarget | undefined' is not assignable to parameter of type 'ScriptTarget | CreateSourceFileOptions'. Type 'undefined' is not assignable to type 'ScriptTarget | CreateSourceFileOptions'. Argument of type 'Diagnostic' is not assignable to parameter of type 'DiagnosticWithLocation'. Types of property 'file' are incompatible. Type 'SourceFile | undefined' is not assignable to type 'SourceFile'. Type 'undefined' is not assignable to type 'SourceFile'. Argument of type '(...pathSegments: string[]) => string | undefined' is not assignable to parameter of type '(...args: string[]) => string'. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'OpenInEditorCallback | undefined' is not assignable to parameter of type 'OpenInEditorCallback'. Type 'undefined' is not assignable to type 'OpenInEditorCallback'. Argument of type 'CompilerWatcher | undefined' is not assignable to parameter of type 'CompilerWatcher'. Type 'undefined' is not assignable to type 'CompilerWatcher'. Argument of type '{ editor: string | undefined; }' is not assignable to parameter of type 'OpenInEditorOptions'. Types of property 'editor' are incompatible. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Argument of type 'string | undefined' is not assignable to parameter of type 'PathLike'. Argument of type 'DevServerConfig | undefined' is not assignable to parameter of type 'DevServerConfig'. Type 'undefined' is not assignable to type 'DevServerConfig'. Argument of type 'CompilerBuildResults | undefined' is not assignable to parameter of type 'CompilerBuildResults'. Type 'undefined' is not assignable to type 'CompilerBuildResults'. Argument of type 'Window | undefined' is not assignable to parameter of type 'Window'. Type 'undefined' is not assignable to type 'Window'. Argument of type 'SerializeDocumentOptions | undefined' is not assignable to parameter of type 'HydrateDocumentOptions'. Type 'undefined' is not assignable to type 'HydrateDocumentOptions'. Argument of type 'HydrateDocumentOptions | undefined' is not assignable to parameter of type 'HydrateDocumentOptions'. Type 'undefined' is not assignable to type 'HydrateDocumentOptions'. Argument of type 'MockNode | null' is not assignable to parameter of type 'MockNode'. Type 'null' is not assignable to type 'MockNode'. Argument of type 'string | undefined' is not assignable to parameter of type 'string | null'. Type 'undefined' is not assignable to type 'string | null'. Argument of type 'string | undefined' is not assignable to parameter of type 'string | null'. Argument of type 'ShadowRoot | null' is not assignable to parameter of type 'Node'. Type 'null' is not assignable to type 'Node'. Argument of type 'MockElement' is not assignable to parameter of type 'MockHTMLElement'. Types of property 'namespaceURI' are incompatible. Type 'string | null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Argument of type 'null' is not assignable to parameter of type 'string | Node'. Argument of type 'null' is not assignable to parameter of type 'string | boolean | undefined'. Argument of type '(Window & typeof globalThis) | null' is not assignable to parameter of type 'Window'. Type 'null' is not assignable to type 'Window'. Argument of type 'string | null | undefined' is not assignable to parameter of type 'string | undefined'. Argument of type 'HostRef | undefined' is not assignable to parameter of type 'HostRef'. Type 'undefined' is not assignable to type 'HostRef'. Argument of type 'this' is not assignable to parameter of type 'HostElement'. Type 'HostElement' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/declarations/stencil-private").HostElement'. The types returned by 'componentOnReady()' are incompatible between these types. Type 'Promise | undefined' is not assignable to type 'Promise'. Type 'undefined' is not assignable to type 'Promise'. Argument of type 'this' is not assignable to parameter of type 'HostElement'. Argument of type 'string | null' is not assignable to parameter of type 'string | undefined'. Argument of type 'PropertyDescriptor | undefined' is not assignable to parameter of type 'PropertyDescriptor & ThisType'. Type 'undefined' is not assignable to type 'PropertyDescriptor & ThisType'. Type 'undefined' is not assignable to type 'PropertyDescriptor'. Argument of type 'HTMLElement | undefined' is not assignable to parameter of type 'HTMLElement'. Type 'undefined' is not assignable to type 'HTMLElement'. Argument of type 'HostElement | undefined' is not assignable to parameter of type 'HostElement'. Type 'undefined' is not assignable to type 'HostElement'. Argument of type 'HostElement | undefined' is not assignable to parameter of type 'EventTarget'. Type 'undefined' is not assignable to type 'EventTarget'. Argument of type 'HostElement | undefined' is not assignable to parameter of type 'Element'. Type 'undefined' is not assignable to type 'Element'. Argument of type 'VNode[] | undefined' is not assignable to parameter of type 'VNode[]'. Type 'undefined' is not assignable to type 'VNode[]'. Argument of type 'null | undefined' is not assignable to parameter of type 'ChildType'. Type 'undefined' is not assignable to type 'ChildType'. Argument of type 'VNode | null' is not assignable to parameter of type 'ChildType'. Type 'null' is not assignable to type 'ChildType'. Argument of type 'VNode | undefined' is not assignable to parameter of type 'ChildType'. Type 'undefined' is not assignable to type 'ChildType'. Argument of type 'VNode | null | undefined' is not assignable to parameter of type 'ChildType'. Type 'undefined' is not assignable to type 'ChildType'. Argument of type 'null | undefined' is not assignable to parameter of type 'ChildType'. Argument of type 'RenderNode | undefined' is not assignable to parameter of type 'Node | null'. Type 'undefined' is not assignable to type 'Node | null'. Argument of type 'VNode | undefined' is not assignable to parameter of type 'VNode'. Type 'undefined' is not assignable to type 'VNode'. Argument of type 'null' is not assignable to parameter of type 'VNode'. Argument of type 'RenderNode | undefined' is not assignable to parameter of type 'Node'. Type 'undefined' is not assignable to type 'Node'. Argument of type 'null' is not assignable to parameter of type 'RenderNode'. Argument of type 'ScreenshotDiff | undefined' is not assignable to parameter of type 'ScreenshotDiff'. Type 'undefined' is not assignable to type 'ScreenshotDiff'. Argument of type 'string | undefined' is not assignable to parameter of type 'PathLike'. Type 'undefined' is not assignable to type 'PathLike'. Argument of type 'string | undefined' is not assignable to parameter of type 'string | SemVer'. Type 'undefined' is not assignable to type 'string | SemVer'. Argument of type 'string | undefined' is not assignable to parameter of type 'string | SemVer'. Argument of type 'null' is not assignable to parameter of type 'number | undefined'. Argument of type 'null' is not assignable to parameter of type 'number | PromiseLike'. Argument of type 'CompilerWorkerTask | undefined' is not assignable to parameter of type 'CompilerWorkerTask'. Type 'undefined' is not assignable to type 'CompilerWorkerTask'. Argument of type 'null' is not assignable to parameter of type 'CompilerWorkerTask'. Argument of type 'undefined' is not assignable to parameter of type 'ErrorHandler'. Argument of type 'string | undefined' is not assignable to parameter of type 'MockRequestInfo'. Type 'undefined' is not assignable to type 'MockRequestInfo'. Argument of type 'string | undefined' is not assignable to parameter of type 'MockRequestInfo'. Argument of type 'MockResponse | undefined' is not assignable to parameter of type 'MockResponse'. Type 'undefined' is not assignable to type 'MockResponse'. Argument of type 'RuntimeRef | undefined' is not assignable to parameter of type 'RuntimeRef'. Type 'undefined' is not assignable to type 'RuntimeRef'. Argument of type 'this' is not assignable to parameter of type 'E2EElementInternal'. Type 'E2EElement' is not assignable to type 'E2EElementInternal'. Types of property 'find' are incompatible. Type '(selector: string) => Promise<E2EElement | null>' is not assignable to type '(selector: FindSelector) => Promise'. Argument of type 'string | null | undefined' is not assignable to parameter of type 'SerializableOrJSHandle'. Type 'undefined' is not assignable to type 'SerializableOrJSHandle'. Argument of type 'this' is not assignable to parameter of type 'E2EElementInternal'. Argument of type 'ElementHandle | null' is not assignable to parameter of type 'ElementHandle'. Type 'null' is not assignable to type 'ElementHandle'. Argument of type '{ viewport: EmulateViewport | undefined; userAgent: string | undefined; }' is not assignable to parameter of type '{ viewport: Viewport; userAgent: string; }'. Types of property 'viewport' are incompatible. Type 'EmulateViewport | undefined' is not assignable to type 'Viewport'. Type 'undefined' is not assignable to type 'Viewport'. Argument of type 'null' is not assignable to parameter of type 'SourceMap | undefined'. |
| TS2322 | 541 | Error messagesType 'string | undefined' is not assignable to type 'string'.Type 'undefined' is not assignable to type 'string'. Type 'string | null | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'null' is not assignable to type 'DevServerConfig | undefined'. Type 'boolean | null | undefined' is not assignable to type 'boolean | undefined'. Type 'null' is not assignable to type 'boolean | undefined'. Type 'null' is not assignable to type 'DevServer'. Type 'undefined' is not assignable to type 'ComponentConstructor | Promise'. Type 'HTMLElement | null' is not assignable to type 'HTMLElement'. Type 'null' is not assignable to type 'HTMLElement'. Type '({ type: "chunk"; fileName: string; map: SourceMap | undefined; code: string; moduleFormat: ModuleFormat | undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; } | { ...; })[]' is not assignable to type 'RollupResult[]'. Type '{ type: "chunk"; fileName: string; map: SourceMap | undefined; code: string; moduleFormat: ModuleFormat | undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; } | { ...; }' is not assignable to type 'RollupResult'. Type '{ type: "chunk"; fileName: string; map: SourceMap | undefined; code: string; moduleFormat: ModuleFormat | undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; }' is not assignable to type 'RollupResult'. Type '{ type: "chunk"; fileName: string; map: SourceMap | undefined; code: string; moduleFormat: ModuleFormat | undefined; entryKey: string; imports: string[]; isEntry: boolean; ... 4 more ...; content?: undefined; }' is not assignable to type 'RollupChunkResult'. Types of property 'moduleFormat' are incompatible. Type 'ModuleFormat | undefined' is not assignable to type 'ModuleFormat'. Type 'undefined' is not assignable to type 'ModuleFormat'. Type 'null' is not assignable to type 'CompilerBuildResults'. Type 'undefined' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'Document'. Type 'null' is not assignable to type 'Promise'. Type 'null' is not assignable to type 'LoggerTimeSpan'. Type 'boolean | undefined' is not assignable to type 'boolean'. Type 'number | undefined' is not assignable to type 'number'. Type 'undefined' is not assignable to type 'number'. Type 'boolean | "prod" | undefined' is not assignable to type 'boolean | "prod"'. Type 'undefined' is not assignable to type 'boolean | "prod"'. Type 'BuildResultsComponentGraph | undefined' is not assignable to type 'BuildResultsComponentGraph'. Type 'undefined' is not assignable to type 'BuildResultsComponentGraph'. Type 'RollupResults | undefined' is not assignable to type 'RollupResults'. Type 'undefined' is not assignable to type 'RollupResults'. Type '{ name: string | undefined; source: string; tags: any[]; }[]' is not assignable to type '{ name: string; source: string; tags: string[]; }[]'. Type '{ name: string | undefined; source: string; tags: any[]; }' is not assignable to type '{ name: string; source: string; tags: string[]; }'. Types of property 'name' are incompatible. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'null' is not assignable to type 'CompilerWorkerContext'. Type 'null' is not assignable to type 'WatchOfConfigFile'. Type 'null' is not assignable to type 'Promise<(void | void[])[]>'. Type 'Promise<(void | void[] | null)[]>' is not assignable to type 'Promise<(void | void[])[]>'. Type '(void | void[] | null)[]' is not assignable to type '(void | void[])[]'. Type 'void | void[] | null' is not assignable to type 'void | void[]'. Type 'null' is not assignable to type 'void | void[]'. Type 'null' is not assignable to type '{ program: WatchOfConfigFile; rebuild: () => void; }'. Type 'string | null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string | undefined'. Type 'string' is not assignable to type 'never'. Type 'null' is not assignable to type 'never'. Type 'never[]' is not assignable to type 'never'. Type '{ code: string; exports: string[]; workerMsgId: string; dependencies: string[]; } | null' is not assignable to type 'WorkerMeta | undefined'. Type 'null' is not assignable to type 'WorkerMeta | undefined'. Type 'WorkerMeta | undefined' is not assignable to type 'WorkerMeta'. Type 'undefined' is not assignable to type 'WorkerMeta'. Type 'CompilerSystem | undefined' is not assignable to type 'CompilerSystem'. Type 'undefined' is not assignable to type 'CompilerSystem'. Type 'Logger | undefined' is not assignable to type 'Logger'. Type 'undefined' is not assignable to type 'Logger'. Type 'import("/home/runner/work/stencil/stencil/src/compiler/cache").Cache' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/declarations/stencil-private").Cache'. The types returned by 'get(...)' are incompatible between these types. Type 'Promise<string | null>' is not assignable to type 'Promise'. Type 'null' is not assignable to type 'ValidatedConfig'. Type 'null' is not assignable to type 'Config'. Type 'null' is not assignable to type 'string[]'. Type '{ dir: string; buildDir: string; collectionDir: string | null; typesDir: string; esmLoaderPath: string; copy: d.CopyTask[]; polyfills: boolean | undefined; empty: boolean; transformAliasedImportPathsInCollection: boolean; type: "dist"; }' is not assignable to type 'Required'. Types of property 'polyfills' are incompatible. Type 'boolean | undefined' is not assignable to type 'boolean'. Type 'string | undefined' is not assignable to type 'never'. Type 'undefined' is not assignable to type 'never'. Type 'boolean | undefined' is not assignable to type 'never'. Type 'undefined' is not assignable to type 'never'. Type 'boolean' is not assignable to type 'never'. Type 'CopyTask[]' is not assignable to type 'never'. Type 'null' is not assignable to type 'number | undefined'. Type 'null' is not assignable to type 'HistoryApiFallback | undefined'. Type 'null' is not assignable to type 'CopyTask[] | undefined'. Type '{ dirPath: string; filePath: string; fileName: string; readmePath: string; usagesDir: string; tag: string; readme: string | undefined; usage: JsonDocsUsage; docs: string; docsTags: CompilerJsDocTagInfo[]; ... 11 more ...; listeners: JsonDocsListener[]; }[]' is not assignable to type 'JsonDocsComponent[]'. Type '{ dirPath: string; filePath: string; fileName: string; readmePath: string; usagesDir: string; tag: string; readme: string | undefined; usage: d.JsonDocsUsage; docs: string; docsTags: d.CompilerJsDocTagInfo[]; ... 11 more ...; listeners: d.JsonDocsListener[]; }' is not assignable to type 'JsonDocsComponent'. Types of property 'readme' are incompatible. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'string[] | undefined' is not assignable to type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. Type '{ name: string; type: string; mutable: boolean; attr: string | undefined; reflectToAttr: boolean; docs: string; docsTags: CompilerJsDocTagInfo[]; default: string | undefined; deprecation: string | undefined; values: JsonDocsValue[]; optional: boolean; required: boolean; }[]' is not assignable to type 'JsonDocsProp[]'. Type '{ name: string; type: string; mutable: boolean; attr: string | undefined; reflectToAttr: boolean; docs: string; docsTags: d.CompilerJsDocTagInfo[]; default: string | undefined; deprecation: string | undefined; values: d.JsonDocsValue[]; optional: boolean; required: boolean; }' is not assignable to type 'JsonDocsProp'. Types of property 'default' are incompatible. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '{ name: string; type: string; mutable: false; attr: string; reflectToAttr: false; docs: string; docsTags: never[]; default: undefined; deprecation: undefined; values: JsonDocsValue[]; optional: true; required: false; }[]' is not assignable to type 'JsonDocsProp[]'. Type '{ name: string; type: string; mutable: false; attr: string; reflectToAttr: false; docs: string; docsTags: never[]; default: undefined; deprecation: undefined; values: d.JsonDocsValue[]; optional: true; required: false; }' is not assignable to type 'JsonDocsProp'. Types of property 'default' are incompatible. Type 'undefined' is not assignable to type 'string'. Type '(ComponentCompilerMeta | undefined)[]' is not assignable to type 'ComponentCompilerMeta[]'. Type 'ComponentCompilerMeta | undefined' is not assignable to type 'ComponentCompilerMeta'. Type 'undefined' is not assignable to type 'ComponentCompilerMeta'. Type '(ComponentCompilerMeta | undefined)[][]' is not assignable to type 'readonly ComponentCompilerMeta[][]'. Type '(ComponentCompilerMeta | undefined)[]' is not assignable to type 'ComponentCompilerMeta[]'. Type 'null' is not assignable to type 'boolean | SourceMapOptions | undefined'. Type 'null' is not assignable to type 'SourceMap | undefined'. Type '{ name: string | undefined; tags: string[]; }[]' is not assignable to type 'CollectionDependencyData[]'. Type '{ name: string | undefined; tags: string[]; }' is not assignable to type 'CollectionDependencyData'. Types of property 'name' are incompatible. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'string | undefined' is not assignable to type 'string | number'. Type 'undefined' is not assignable to type 'string | number'. Type 'SourceMap | undefined' is not assignable to type 'SourceMap'. Type 'undefined' is not assignable to type 'SourceMap'. Type 'string | null' is not assignable to type 'string | undefined'. Type 'null' is not assignable to type 'string | undefined'. Type 'null' is not assignable to type 'Function'. Type 'null' is not assignable to type 'Map<string, string[]>'. Type 'null' is not assignable to type 'PrerenderConfig'. Type 'null' is not assignable to type 'Set'. Type 'null' is not assignable to type 'HydrateAnchorElement[]'. Type 'null' is not assignable to type '(prerenderRequest: PrerenderUrlRequest) => Promise'. Type 'CssNode | null' is not assignable to type 'void | CssNode'. Type 'null' is not assignable to type 'void | CssNode'. Type 'CssNode | null' is not assignable to type 'CssNode'. Type 'null' is not assignable to type 'CssNode'. Type 'CssNode | null' is not assignable to type 'void | CssNode'. Type 'RegExpExecArray | null' is not assignable to type 'RegExpExecArray'. Type 'null' is not assignable to type 'RegExpExecArray'. Type 'null' is not assignable to type '() => string'. Type 'null' is not assignable to type 'number'. Type 'null' is not assignable to type 'boolean'. Type 'null' is not assignable to type 'boolean | undefined'. Type 'FsItem | undefined' is not assignable to type 'FsItem'. Type 'undefined' is not assignable to type 'FsItem'. Type 'null' is not assignable to type 'CompilerFileWatcherCallback[]'. Type '(key: string) => string | undefined' is not assignable to type '(key: string) => string'. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '(p: string) => Promise<string | undefined>' is not assignable to type '{ (p: string): Promise; (p: string, encoding: "utf8"): Promise; (p: string, encoding: "binary"): Promise; }'. Type 'Promise<string | undefined>' is not assignable to type 'Promise'. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '(p: string) => string | undefined' is not assignable to type '(p: string, encoding?: string | undefined) => string'. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type '((maxConcurrentWorkers: number) => WorkerMainController) | null' is not assignable to type '((maxConcurrentWorkers: number) => WorkerMainController) | undefined'. Type 'null' is not assignable to type '((maxConcurrentWorkers: number) => WorkerMainController) | undefined'. Type 'null' is not assignable to type 'ResolvedModuleWithFailedLookupLocations'. Type 'null' is not assignable to type 'Worker'. Type 'CollectionCompilerMeta | undefined' is not assignable to type 'CollectionCompilerMeta'. Type 'undefined' is not assignable to type 'CollectionCompilerMeta'. Type 'DeclarationName | undefined' is not assignable to type 'DeclarationName'. Type 'undefined' is not assignable to type 'DeclarationName'. Type 'null' is not assignable to type 'PropertyAssignment'. Type 'boolean | null' is not assignable to type 'boolean'. Type 'null' is not assignable to type 'boolean'. Type 'undefined' is not assignable to type 'ComponentCompilerVirtualProperty'. Type '{ name: string; method: string; bubbles: boolean; cancelable: boolean; composed: boolean; docs: CompilerJsDoc; complexType: ComponentCompilerEventComplexType; internal: boolean | undefined; }[]' is not assignable to type 'ComponentCompilerEvent[]'. Type '{ name: string; method: string; bubbles: boolean; cancelable: boolean; composed: boolean; docs: d.CompilerJsDoc; complexType: d.ComponentCompilerEventComplexType; internal: boolean | undefined; }' is not assignable to type 'ComponentCompilerEvent'. Types of property 'internal' are incompatible. Type 'boolean | undefined' is not assignable to type 'boolean'. Type '{ name: string; docs: CompilerJsDoc; complexType: ComponentCompilerMethodComplexType; internal: boolean | undefined; }[]' is not assignable to type 'ComponentCompilerMethod[]'. Type '{ name: string; docs: d.CompilerJsDoc; complexType: d.ComponentCompilerMethodComplexType; internal: boolean | undefined; }' is not assignable to type 'ComponentCompilerMethod'. Types of property 'internal' are incompatible. Type 'boolean | undefined' is not assignable to type 'boolean'. Type '{ name: string; type: ComponentCompilerPropertyType; attribute: string | undefined; reflect: boolean; mutable: boolean; required: boolean; optional: boolean; defaultValue: string | undefined; complexType: ComponentCompilerPropertyComplexType; docs: CompilerJsDoc; internal: boolean | undefined; }[]' is not assignable to type 'ComponentCompilerProperty[]'. Type '{ name: string; type: d.ComponentCompilerPropertyType; attribute: string | undefined; reflect: boolean; mutable: boolean; required: boolean; optional: boolean; defaultValue: string | undefined; complexType: d.ComponentCompilerPropertyComplexType; docs: d.CompilerJsDoc; internal: boolean | undefined; }' is not assignable to type 'ComponentCompilerProperty'. Types of property 'internal' are incompatible. Type 'boolean | undefined' is not assignable to type 'boolean'. Type 'null' is not assignable to type 'ImportData'. Type 'undefined' is not assignable to type '"queryparams" | null'. Type 'null' is not assignable to type 'WeakSet'. Type 'null' is not assignable to type 'Module'. Type 'Module | undefined' is not assignable to type 'Module'. Type 'undefined' is not assignable to type 'Module'. Type 'undefined' is not assignable to type 'CompilerJsDoc'. Type '{ [x: string]: d.TypesMemberNameData[] | undefined; }' is not assignable to type 'TypesImportData'. 'string' index signatures are incompatible. Type 'TypesMemberNameData[] | undefined' is not assignable to type 'TypesMemberNameData[]'. Type 'undefined' is not assignable to type 'TypesMemberNameData[]'. Type 'string | undefined' is not assignable to type 'string | null'. Type '((data: { file: string; line: number; column: number; }) => void) | null' is not assignable to type 'OpenInEditorCallback | undefined'. Type 'null' is not assignable to type 'OpenInEditorCallback | undefined'. Type 'null' is not assignable to type 'WebSocket'. Type 'null' is not assignable to type 'BuildOnEventRemove'. Type 'null' is not assignable to type '() => void'. Type 'null' is not assignable to type '(msg: DevServerMessage) => void'. Type 'DevServerConfig | undefined' is not assignable to type 'DevServerConfig'. Type 'undefined' is not assignable to type 'DevServerConfig'. Type 'null' is not assignable to type '{ open(openId: string): Promise; }'. Type 'string | null' is not assignable to type 'string | undefined'. Type 'null' is not assignable to type 'Promise<DevServerEditor[]>'. Type 'null' is not assignable to type '(req: IncomingMessage, res: ServerResponse, next: () => void) => void'. Type 'null' is not assignable to type 'URL'. Type 'null' is not assignable to type 'URLSearchParams'. Type 'PageReloadStrategy | undefined' is not assignable to type 'PageReloadStrategy'. Type 'undefined' is not assignable to type 'PageReloadStrategy'. Type 'null' is not assignable to type 'Server<typeof IncomingMessage, typeof ServerResponse>'. Type 'null' is not assignable to type 'DevWebSocket'. Type 'null' is not assignable to type 'DevServerContext'. Type 'DevWebSocket | null' is not assignable to type 'DevWebSocket'. Type 'null' is not assignable to type 'DevWebSocket'. Type 'null' is not assignable to type 'ChildProcess'. Type 'null' is not assignable to type 'HydrateApp'. Type '() => undefined' is not assignable to type '{ (cb?: (() => void) | undefined): TestServerResponse; (chunk: any, cb?: (() => void) | undefined): TestServerResponse; (chunk: any, encoding: BufferEncoding, cb?: (() => void) | undefined): TestServerResponse; }'. Type 'undefined' is not assignable to type 'TestServerResponse'. Type 'null' is not assignable to type 'ComponentConstructor'. Type '(this: HostElement) => Promise | undefined' is not assignable to type '() => Promise'. Type 'Promise | undefined' is not assignable to type 'Promise'. Type 'undefined' is not assignable to type 'Promise'. Type 'null' is not assignable to type 'Window & typeof globalThis'. Type 'null' is not assignable to type 'Window'. Type 'null' is not assignable to type 'Window & typeof globalThis'. Type 'null' is not assignable to type 'MockCSSStyleSheet'. Type 'null' is not assignable to type 'string | boolean'. Type 'null' is not assignable to type 'Location'. Type 'null' is not assignable to type 'MockElement'. Type 'null' is not assignable to type 'SVGSVGElement'. Type 'null' is not assignable to type 'SVGElement'. Type 'null' is not assignable to type 'EventTarget'. Type 'null' is not assignable to type 'MockEventListener[]'. Type 'null' is not assignable to type 'MockDocument'. Type '{ name: string; value: string; namespace: string | null; prefix: null; }[]' is not assignable to type 'Attribute[]'. Type '{ name: string; value: string; namespace: string | null; prefix: null; }' is not assignable to type 'Attribute'. Types of property 'namespace' are incompatible. Type 'string | null' is not assignable to type 'string | undefined'. Type '(element: MockElement) => string | null' is not assignable to type '(element: unknown) => string'. Type 'string | null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Type 'ParentNode | null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'Document'. Type 'string | null | undefined' is not assignable to type 'string | undefined'. Type 'never[] | null' is not assignable to type 'RenderNode[]'. Type 'null' is not assignable to type 'RenderNode[]'. Type 'null' is not assignable to type 'VNode[]'. Type 'null' is not assignable to type 'string | number | undefined'. Type 'null' is not assignable to type 'string | number | Function'. Type 'RenderNode | null' is not assignable to type 'RenderNode'. Type 'null' is not assignable to type 'RenderNode'. Type 'HTMLElement | null' is not assignable to type 'EventTarget'. Type 'null' is not assignable to type 'EventTarget'. Type 'string | null | undefined' is not assignable to type 'string | undefined'. Type 'null' is not assignable to type 'string | undefined'. Type 'null' is not assignable to type 'Set | undefined'. Type 'null' is not assignable to type '[string, any][] | undefined'. Type 'VNode[] | undefined' is not assignable to type 'VNode[]'. Type 'undefined' is not assignable to type 'VNode[]'. Type '(props: {}, children: VNode[], utils: FunctionalUtilities) => null' is not assignable to type 'FunctionalComponent<{}>'. Type 'null' is not assignable to type 'VNode | VNode[]'. Type '() => null' is not assignable to type 'FunctionalComponent<{}>'. Type 'null' is not assignable to type 'VNode | VNode[]'. Type 'null' is not assignable to type 'VNode'. Type 'undefined' is not assignable to type 'VNode'. Type 'RenderNode | undefined' is not assignable to type 'RenderNode'. Type 'undefined' is not assignable to type 'RenderNode'. Type 'RelocateNodeData | undefined' is not assignable to type 'RelocateNodeData'. Type 'undefined' is not assignable to type 'RelocateNodeData'. Type 'ChildNode | null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'Node'. Type 'null' is not assignable to type 'ScreenshotBuild'. Type 'null' is not assignable to type 'ScreenshotCache'. Type 'null' is not assignable to type 'Buffer'. Type 'null' is not assignable to type 'Screenshot'. Type '(() => void) | undefined' is not assignable to type '() => any'. Type 'undefined' is not assignable to type '() => any'. Type '() => null' is not assignable to type '(opts: { rootDir: string; moduleId: string; path: string; }) => string'. Type 'null' is not assignable to type 'string'. Type '() => null' is not assignable to type '(opts: { moduleId: string; path?: string | undefined; version?: string | undefined; }) => string'. Type 'null' is not assignable to type 'string'. Type '() => string | undefined' is not assignable to type '() => string'. Type 'string | undefined' is not assignable to type 'string'. Type 'undefined' is not assignable to type 'string'. Type 'number | null' is not assignable to type 'number'. Type 'null' is not assignable to type 'number'. Type 'any[] | undefined' is not assignable to type 'any[]'. Type 'undefined' is not assignable to type 'any[]'. Type 'boolean | null | undefined' is not assignable to type 'boolean | undefined'. Type 'null' is not assignable to type 'ConfigBundle[] | undefined'. Type 'null' is not assignable to type 'OutputTarget[] | undefined'. Type 'null' is not assignable to type 'TestingConfig | undefined'. Type 'null' is not assignable to type 'Cache'. Type 'null' is not assignable to type '{ access: (filePath: string) => Promise; accessSync: (filePath: string) => boolean; cancelDeleteDirectoriesFromDisk: (dirPaths: string[]) => void; cancelDeleteFilesFromDisk: (filePaths: string[]) => void; ... 17 more ...; writeFiles: (files: { ...; } | Map<...>, opts?: FsWriteOptions | undefined) => Promise...'. Type 'HostRef | undefined' is not assignable to type 'HostRef'. Type 'undefined' is not assignable to type 'HostRef'. Type 'Function | undefined' is not assignable to type 'Function'. Type 'undefined' is not assignable to type 'Function'. Type 'RafCallback | undefined' is not assignable to type 'Function'. Type 'undefined' is not assignable to type 'Function'. Type 'QueuedLoadModule | undefined' is not assignable to type 'QueuedLoadModule'. Type 'undefined' is not assignable to type 'QueuedLoadModule'. Type 'null' is not assignable to type 'ElementHandle'. Type 'null' is not assignable to type 'E2EPageInternal'. Type 'ElementHandle | null' is not assignable to type 'ElementHandle'. Type 'null' is not assignable to type 'ElementHandle'. Type 'null' is not assignable to type 'Promise<JSHandle>'. Type '(a?: any, b?: any) => Promise<ScreenshotDiff | undefined>' is not assignable to type '{ (): Promise; (description: string): Promise; (opts: ScreenshotOptions): Promise<...>; (description: string, opts: ScreenshotOptions): Promise<...>; }'. Type 'Promise<ScreenshotDiff | undefined>' is not assignable to type 'Promise'. Type 'ScreenshotDiff | undefined' is not assignable to type 'ScreenshotDiff'. Type 'undefined' is not assignable to type 'ScreenshotDiff'. Type 'null' is not assignable to type 'CompilerWatcher'. Type 'null' is not assignable to type 'Promise'. Type 'Browser | null' is not assignable to type 'Browser'. Type 'null' is not assignable to type 'Browser'. Type 'null' is not assignable to type 'ValidatedConfig'. Type 'null' is not assignable to type 'Browser'. Type 'null' is not assignable to type 'SourceMap'. Type 'null' is not assignable to type 'PackageJsonData'. Type 'null' is not assignable to type '{ [moduleId: string]: string; } | undefined'. |
| TS2531 | 203 | Error messagesObject is possibly 'null'. |
| TS2454 | 46 | Error messagesVariable 'pkgJsonData' is used before being assigned.Variable 'minifyOpts' is used before being assigned. Variable 'workerCtrl' is used before being assigned. Variable 'timespan' is used before being assigned. Variable 'content' is used before being assigned. Variable 'compilerExe' is used before being assigned. Variable 'outputText' is used before being assigned. Variable 'importResolvedFile' is used before being assigned. Variable 'win' is used before being assigned. Variable 'attrName' is used before being assigned. Variable 'oldValue' is used before being assigned. Variable 'newValue' is used before being assigned. Variable 'hostId' is used before being assigned. Variable 'promise' is used before being assigned. Variable 'textContent' is used before being assigned. Variable 'resolve' is used before being assigned. Variable 'opts' is used before being assigned. |
| TS2722 | 41 | Error messagesCannot invoke an object which is possibly 'undefined'. |
| TS2352 | 19 | Error messagesConversion of type 'null' to type 'CompilerSystem' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first.Conversion of type 'null' to type 'string' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. Conversion of type 'null' to type 'string[]' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. Conversion of type '{ cmps: never[]; }' to type 'Module' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. Type '{ cmps: never[]; }' is missing the following properties from type 'Module': coreRuntimeApis, collectionName, dtsFilePath, excludeFromCollection, and 27 more. Conversion of type 'null' to type 'ScreenshotCache' may be a mistake because neither type sufficiently overlaps with the other. If this was intentional, convert the expression to 'unknown' first. |
| TS2769 | 13 | Error messagesNo overload matches this call.Overload 1 of 2, '(type: keyof DocumentEventMap, listener: (this: Document, ev: PointerEvent | MouseEvent | UIEvent | Event | ErrorEvent | ... 13 more ... | WheelEvent) => any, options?: boolean | ... 1 more ... | undefined): void', gave the following error. Argument of type '"e"' is not assignable to parameter of type 'keyof DocumentEventMap'. Overload 2 of 2, '(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions | undefined): void', gave the following error. Argument of type 'null' is not assignable to parameter of type 'EventListenerOrEventListenerObject'. No overload matches this call. Overload 1 of 2, '(o: {}): string[]', gave the following error. Argument of type 'BuildResultsComponentGraph | undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. Overload 2 of 2, '(o: object): string[]', gave the following error. Argument of type 'BuildResultsComponentGraph | undefined' is not assignable to parameter of type 'object'. Type 'undefined' is not assignable to type 'object'. No overload matches this call. Overload 1 of 4, '(object: {}, method: never): SpyInstance<never, never>', gave the following error. Argument of type 'CompilerWorkerContext | undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. Overload 2 of 4, '(object: {}, method: never): SpyInstance<never, never>', gave the following error. Argument of type 'CompilerWorkerContext | undefined' is not assignable to parameter of type '{}'. Type 'undefined' is not assignable to type '{}'. No overload matches this call. The last overload gave the following error. Argument of type 'string | null' is not assignable to parameter of type '(substring: string, ...args: any[]) => string'. Type 'null' is not assignable to type '(substring: string, ...args: any[]) => string'. No overload matches this call. The last overload gave the following error. Argument of type 'string | null' is not assignable to parameter of type 'string | number | boolean | PseudoBigInt'. Type 'null' is not assignable to type 'string | number | boolean | PseudoBigInt'. No overload matches this call. The last overload gave the following error. Argument of type 'string | undefined' is not assignable to parameter of type 'string | RegExp'. Type 'undefined' is not assignable to type 'string | RegExp'. No overload matches this call. Overload 1 of 2, '(configFileName: string, optionsToExtend: CompilerOptions | undefined, system: System, createProgram?: CreateProgram | undefined, reportDiagnostic?: DiagnosticReporter | undefined, reportWatchStatus?: WatchStatusReporter | undefined, watchOptionsToExtend?: WatchOptions | undefined, extraFileExtensions?: readonly FileExtensionInfo[] | undefined): WatchCompilerHostOfConfigFile<...>', gave the following error. Argument of type 'string | undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Overload 2 of 2, '(rootFiles: string[], options: CompilerOptions, system: System, createProgram?: CreateProgram | undefined, reportDiagnostic?: DiagnosticReporter | undefined, reportWatchStatus?: WatchStatusReporter | undefined, projectReferences?: readonly ProjectReference[] | undefined, watchOptions?: WatchOptions | undefined): WatchCompilerHostOfFilesAndCompilerOptions<...>', gave the following error. Argument of type 'string | undefined' is not assignable to parameter of type 'string[]'. Type 'undefined' is not assignable to type 'string[]'. No overload matches this call. Overload 1 of 2, '(timeoutId: string | number | Timeout | undefined): void', gave the following error. Argument of type 'Timeout | null' is not assignable to parameter of type 'string | number | Timeout | undefined'. Type 'null' is not assignable to type 'string | number | Timeout | undefined'. Overload 2 of 2, '(id?: number | undefined): void', gave the following error. Argument of type 'Timeout | null' is not assignable to parameter of type 'number | undefined'. Type 'null' is not assignable to type 'number | undefined'. No overload matches this call. Overload 1 of 2, '(timeoutId: string | number | Timeout | undefined): void', gave the following error. Argument of type 'Timeout | null' is not assignable to parameter of type 'string | number | Timeout | undefined'. Overload 2 of 2, '(id?: number | undefined): void', gave the following error. Argument of type 'Timeout | null' is not assignable to parameter of type 'number | undefined'. No overload matches this call. Overload 1 of 3, '(p: string, encoding: "utf8"): Promise', gave the following error. Argument of type 'string | undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. Overload 2 of 3, '(p: string, encoding: "binary"): Promise', gave the following error. Argument of type 'string | undefined' is not assignable to parameter of type 'string'. Type 'undefined' is not assignable to type 'string'. No overload matches this call. Overload 1 of 2, '(values: [] | readonly unknown[]): Promise<unknown[] | []>', gave the following error. Argument of type 'Promise[] | undefined' is not assignable to parameter of type '[] | readonly unknown[]'. Type 'undefined' is not assignable to type '[] | readonly unknown[]'. Overload 2 of 2, '(values: Iterable<void | PromiseLike>): Promise<void[]>', gave the following error. Argument of type 'Promise[] | undefined' is not assignable to parameter of type 'Iterable<void | PromiseLike>'. Type 'undefined' is not assignable to type 'Iterable<void | PromiseLike>'. |
| TS2790 | 10 | Error messagesThe operand of a 'delete' operator must be optional. |
| TS2538 | 8 | Error messagesType 'undefined' cannot be used as an index type.Type 'null' cannot be used as an index type. |
| TS2416 | 4 | Error messagesProperty 'get' in type 'Cache' is not assignable to the same property in base type 'Cache'.Type '(key: string) => Promise<string | null>' is not assignable to type '(key: string) => Promise'. Type 'Promise<string | null>' is not assignable to type 'Promise'. Type 'string | null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Property 'getMemoryStats' in type 'Cache' is not assignable to the same property in base type 'Cache'. Type '() => string | null' is not assignable to type '() => string'. Type 'string | null' is not assignable to type 'string'. Type 'null' is not assignable to type 'string'. Property 'find' in type 'E2EElement' is not assignable to the same property in base type 'E2EElementInternal'. Type '(selector: string) => Promise<E2EElement | null>' is not assignable to type '(selector: FindSelector) => Promise'. Type 'Promise<E2EElement | null>' is not assignable to type 'Promise'. Type 'E2EElement | null' is not assignable to type 'E2EElement'. Type 'null' is not assignable to type 'E2EElement'. Property 'findAll' in type 'E2EElement' is not assignable to the same property in base type 'E2EElementInternal'. Type '(selector: string) => Promise<E2EElement[]>' is not assignable to type '(selector: FindSelector) => Promise<E2EElement[]>'. Type 'Promise<import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-element").E2EElement[]>' is not assignable to type 'Promise<import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-declarations").E2EElement[]>'. Type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-element").E2EElement[]' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-declarations").E2EElement[]'. Type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-element").E2EElement' is not assignable to type 'import("/home/runner/work/stencil/stencil/src/testing/puppeteer/puppeteer-declarations").E2EElement'. The types returned by 'find(...)' are incompatible between these types. Type 'Promise<E2EElement | null>' is not assignable to type 'Promise'. |
| TS2533 | 3 | Error messagesObject is possibly 'null' or 'undefined'. |
| TS2493 | 3 | Error messagesTuple type '[]' of length '0' has no element at index '0'. |
| TS2488 | 2 | Error messagesType 'Diagnostic[] | undefined' must have a 'Symbol.iterator' method that returns an iterator.Type 'string[] | undefined' must have a 'Symbol.iterator' method that returns an iterator. |
| TS2774 | 2 | Error messagesThis condition will always return true since this function is always defined. Did you mean to call it instead? |
| TS2684 | 1 | Error messagesThe 'this' context of type 'ResolveIdHook | undefined' is not assignable to method's 'this' of type 'Function'.Type 'undefined' is not assignable to type 'Function'. |
| TS2464 | 1 | Error messagesA computed property name must be of type 'string', 'number', 'symbol', or 'any'. |
| TS2430 | 1 | Error messagesInterface 'SerializeOpts' incorrectly extends interface 'SerializeCssOptions'.Types of property 'usedSelectors' are incompatible. Type 'UsedSelectors | null' is not assignable to type 'UsedSelectors | undefined'. Type 'null' is not assignable to type 'UsedSelectors | undefined'. |
Unused exports report
There are 9 unused exports on this PR. That's the same number of errors on main, so at least we're not creating new ones!
Unused exports
| File | Line | Identifier |
|---|---|---|
| src/screenshot/screenshot-fs.ts | 18 | readScreenshotData |
| src/testing/testing-utils.ts | 186 | withSilentWarn |
| src/compiler/app-core/app-data.ts | 3 | BUILD |
| src/compiler/app-core/app-data.ts | 88 | Env |
| src/compiler/app-core/app-data.ts | 90 | NAMESPACE |
| src/compiler/fs-watch/fs-watch-rebuild.ts | 111 | updateCacheFromRebuild |
| src/testing/platform/testing-platform.ts | 29 | cssVarShim |
| src/testing/puppeteer/puppeteer-declarations.ts | 513 | WaitForEventOptions |
| src/client/polyfills/css-shim/utils.ts | 1 | GLOBAL_SCOPE |
alicewriteswrongs
changed the title
rwaskiewicz
reviewed
Sep 20, 2022
There was a problem hiding this comment.
I wasn't terribly thorough here, so my inline comments can be ignored for the time being.
The one bigger question I have is, is this the right path we should be taking? We had originally slated this a v3 feature with the intent that we may cause breaking changes to the runtime here. However, I haven't spent as much time with this as you have, so I suppose my actual question is "Is there a path forward where we align with the ECMAScript standard instead of having to patch the ctor?"
| * @returns a new list of the same ClassElement nodes, with any nodes which have | ||
| * Stencil-specific decorators modified to remove them | ||
| */ | ||
| const removeStencilDecorators = (classMembers: ts.ClassElement[]): ts.ClassElement[] => { | ||
| return classMembers.map((m) => { |
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I know this is a pre-existing variable name, but could we rename m to something a little more descriptive? I think prior to this PR, the scope of the .map() call in which its declared grew a little too large for m to have great semantic meaning as a name and nobody changed it :-(
| @@ -105,8 +120,9 @@ const removeStencilDecorators = (classMembers: ts.ClassElement[]) => { | |||
| m.body | |||
| ); | |||
| } else if (ts.isPropertyDeclaration(m)) { | |||
| return ts.updateProperty(m, newDecorators, m.modifiers, m.name, m.questionToken, m.type, m.initializer); | |||
| return m; | |||
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IIUC, we're not removing Stencil-decorators on the class member anymore if it's a property declaration and deferring that to later - is that correct? If that's the case, it may be worth adding a comment stating why we are singling out property declarations to only return them
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yeah that's correct, we want to keep the stencil-specific decorators on them so that we can tell later on whether we want to keep them on as class members or not
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I think that we will be able to do a much better implementation of all the decorator-based functionality in Stencil once the ES decorators proposal is accepted. In particular, I think we could add the stencil/src/runtime/proxy-component.ts Lines 39 to 68 in a3f9af2 Assuming that the proposal is accepted more or less as it's written currently, that would overall be a much more elegant solution and something where we'd be outputting nice, standards-compliant ES classes and not hacking things up 😅 My guess is that proposal will get accepted fairly soon and then will need a bit of time to get full support everywhere. What would you think about merging something along these lines in the meantime, so that we can support |
LMK if I'm understanding this correctly - at Stencil's compile time (before we invoke the TypeScript compiler), we add
FWIW I'd consider it "stable" at Stage 3/with the TS team is looking at implementing it for 4.9 - it's both terrifying and exciting 😆 Although 4.9 is in beta, it doesn't appear the Decorators proposal has landed yet. The RC is slated for Nov 1 at the time of this writing, with the final build and official releases on Nov 11th and 15th, respectively. But either way, we unfortunately don't have an implementation to prototype against :-/ |
rwaskiewicz
suggested changes
Sep 27, 2022
| @@ -73,6 +73,8 @@ const visitClassDeclaration = ( | |||
| listenDecoratorsToStatic(diagnostics, decoratedMembers, newMembers); | |||
| } | |||
|
|
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| const newerMembers = handleClassFields(classNode, newMembers); | |||
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If we push forward with this implementation, can we add a comment as to what we're doing with newerMembers? While I think a reader can probably make some reasonable assumptions by the JSDoc on handleClassFields, I think it'd be beneficial to explain why we're updating the class decl with newerMembers (more specifically, what newerMembers is and how it differs from newMembers)
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makes sense! newerMembers is also not the best name, I'll come up with something better
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| const statements = []; | ||
| const updatedClassMembers = []; |
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Minor, can we add type declarations to these two?
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| const statements = []; | |
| const updatedClassMembers = []; | |
| const statements: ts.ExpressionStatement[] = []; | |
| const updatedClassMembers: ts.ClassElement[] = []; |
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| // @ts-ignore | ||
| ts.factory.createIdentifier(member.name.escapedText) |
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Can we determine if there's another property that doesn't require us to use @ts-ignore? I've been bit by that one being undefined before (or maybe it was text?), IDK if that's what we want to move forward with or not
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Came up with this, it's a bit wordy but no type assertions or @ts-ignore necessary:
const declarationName: ts.DeclarationName = ts.getNameOfDeclaration(member);
const memberName =
declarationName.kind === ts.SyntaxKind.ComputedPropertyName
? declarationName.expression.getText()
: declarationName.getText();There was a problem hiding this comment.
memberName is then a string that we can just pass in to ts.factory.createIdentifier
| /** | ||
| * Helper util for updating the constructor on a class declaration AST node. | ||
| * | ||
| * @param classNode the class node whose constructor we're going to be updated |
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this reads a little funky
Suggested change
| * @param classNode the class node whose constructor we're going to be updated | |
| * @param classNode the class node whose constructor that's going to be updated |
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lol indeed it does 😅
| statements = [createConstructorBodyWithSuper(), ...statements]; | ||
| } | ||
|
|
||
| classMembers[constructorIndex] = ts.updateConstructor( |
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Can we use the factory method here? I think it's
Suggested change
| classMembers[constructorIndex] = ts.updateConstructor( | |
| classMembers[constructorIndex] = ts.factory.updateConstructorDeclaration( |
| constructorMethod.decorators, | ||
| constructorMethod.modifiers, | ||
| constructorMethod.parameters, | ||
| ts.updateBlock(constructorMethod.body, statements) |
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Can we use the factory method here? I think it's
Suggested change
| ts.updateBlock(constructorMethod.body, statements) | |
| ts.factory.updateBlock(constructorMethod.body, statements) | |
| * @returns a {@link ts.ExpressionStatement} node equivalent to `super()` | ||
| */ | ||
| const createConstructorBodyWithSuper = (): ts.ExpressionStatement => { | ||
| return ts.createExpressionStatement(ts.createCall(ts.createIdentifier('super'), undefined, undefined)); |
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what would you suggest we do? right now this will basically add a super() call if one isn't present in the existing constructor or if we're creating a new one if the class inherits from another class. Right now it always gets added as the first statement in the constructor
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Hmmm - are you saying it's always added there today? If so, maybe I jumped the gun and we should punt on this for now. If not, I wonder if we can find the index of the super() call in an existing ctor (if it exists) and use that? And if not we just put it at the start?
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@rwaskiewicz just an quick update on this PR. I made two improvements:
I think things should now be ready for another look! |
rwaskiewicz
suggested changes
Oct 4, 2022
| * Take a list of `ClassElement` AST nodes and remove any decorators from | ||
| * method elements which are Stencil-specific decorators. We implement the | ||
| * intended behavior for these Stencil-specific decorators (things like | ||
| * `@Watch`, `@PropDidChange`, etc) through a combination of compile- and |
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Wasn't PropDidChange removed for v2? 😆
...checks code...
Oh, that's still in MEMBER_DECORATORS_TO_REMOVE 🤦
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hum, should we remove them while we're in here?
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I haven't looked at your changes you've made since this comment. If you haven't already, it's probably best we remove them in an explicit commit/PR (e.g. "Remove Deprecated Decorator Names")
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Created STENCIL-591 for this
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| // update the property to remove decorators | ||
| return ts.updateProperty( | ||
| member, | ||
| newDecorators, | ||
| member.modifiers, | ||
| member.name, | ||
| member.questionToken, | ||
| member.type, | ||
| member.initializer | ||
| ); |
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I don't think I understand this block yet. It updates properties that aren't methods, that shouldn't be in the ctor, like @Event?
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yes that's right - basically we don't want to do this edit (from class field to constructor-initialized field, idk what to call that exactly) to all fields, but just to ones decorated with @State and @Prop. So this is the behavior that was previously there for all fields.
| if (shouldInitializeInConstructor(member) && ts.isPropertyDeclaration(member)) { | ||
| const declarationName: ts.DeclarationName = ts.getNameOfDeclaration(member); | ||
|
|
||
| const memberName = |
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Can we add a comment as to what/why we're doing this? I think the ternary itself is simple enough, but I don't think it's clear what the distinction for a ComputedPropertyName is here from another declaration (or what a ComputedPropertyName looks like in this context
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Yeah I'll add a comment explaining - I'm not sure this ever could be a ComputedPropertyName in practice, but the nodes are typed that way so I put the checks to keep typescript happy
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the TypeScript AST viewer does allow me to use a computed name for a declaration, like so:
const bar = "bar"
class Foo {
[bar] = "baz";
}it parses it to
I didn't realize you could do this! But it does seem like that is valid ECMAScript.
MDN has a brief note about it in this section: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Classes/Public_class_fields#public_instance_fields
I read some of the ECMAScript standard and it seems to be in accordance with that: https://tc39.es/ecma262/multipage/ecmascript-language-expressions.html#prod-PropertyName
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I'll add a little note with some examples to clarify
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the TypeScript AST viewer does allow me to use a computed name for a declaration, like so:
thanks JavaScript 😏
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Definitely some possibilities for runtime metaprogramming there!
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Had no idea that was possible 🤯
| ts.factory.createToken(ts.SyntaxKind.EqualsToken), | ||
| // if the member has no initializer we should default to setting it to | ||
| // just 'undefined' | ||
| member.initializer ?? ts.factory.createIdentifier('undefined') |
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The TypeScript compiler doesn't do any eager evaluation here, right? e.g. if the initializer was an expression that results in null, TS doesn't use null in this calculation, right?
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hum I don't think so, according to my editor member.initializer will be ts.Expression (i.e. an AST node representing an expression) or undefined, so I'm basically ensuring that if it is undefined we hoist that value into AST-land instead of JS-runtime-value-land, if that makes sense? 🤔
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another way to say that is that yeah, I think if the expression evaluates to null that won't come into play until later on in the backend of the TS compiler when it goes to emit JS and has to turn such AST nodes into concrete values in the emitted code
| @@ -0,0 +1,172 @@ | |||
| import { transpileModule } from './transpile'; | |||
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Can we add a few tests around super() please?
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oh yeah that's a good idea, will do
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@rwaskiewicz made a few more updates, should be ready for another look |
rwaskiewicz
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Oct 5, 2022
|
LGTM! |
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@rwaskiewicz just pushed a comment-only commit to add TODOs for STENCIL-591 |
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Oct 5, 2022
tanner-reits
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Oct 5, 2022
| if (shouldInitializeInConstructor(member) && ts.isPropertyDeclaration(member)) { | ||
| const declarationName: ts.DeclarationName = ts.getNameOfDeclaration(member); | ||
|
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| const memberName = |
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Had no idea that was possible 🤯
This updates our handling of Stencil-defined decorators to enable
Stencil users to set an ES2022+ `target` in their `tsconfig.json`.
This requires a code change on our end because as of ES2022 class fields
are now a standard part of ECMAScript, so the TypeScript compiler will
emit a class field when it is present in the source, so this:
```ts
class Foo {
field: string = "blah";
}
```
will compile to something like
```js
class Foo {
field = "blah";
}
```
Previously it compiled to something like this:
```js
class Foo {
constructor() {
this.field = "blah";
}
}
```
Now why is that a problem for us?
When a class field is decorated with a Stencil-defined decorator, we
rely on defining our own setters and getters (using
`Object.defineProperty`) to implement the behavior we want.
Unfortunately, the behavior defined in the ECMAScript standard for class
fields is incompatible with using manually-defined getters and setters,
so we ultimately have to convert some decorated class fields to be
initialized in the constructor instead.
In ES2022+ if we try to use `Object.defineProperty` on this class's
prototype in order to define a `set` and `get` function for a property
`foo` which is declared using the class field syntax it will not
override the default behavior of the instance field `foo`, so doing
something like the following:
```ts
class MyClass {
foo = "bar";
}
Object.defineProperty(MyClass.prototype, "foo", {
get() {
return "Foo is: " + this.foo
}
});
```
and then calling `myClassInstance.foo` will _not_ return `"Foo is: bar"` but
just `"bar"`. This is because the standard ECMAScript behavior is now to use
the internals of `Object.defineProperty` on a class instance to instantiate
fields, and that call at instantiation-time overrides what's set on the
prototype. For details, see the accepted ECMAScript proposal for this
behavior:
https://github.com/tc39/proposal-class-fields#public-fields-created-with-objectdefineproperty
Why is this important? With `target` set to an ECMAScript version prior to
ES2022 TypeScript by default would emit a class which instantiated the field
in its constructor, something like this:
```ts
class CompiledMyClass {
constructor() {
this.foo = "bar"
}
}
```
This plays nicely with later using `Object.defineProperty` on the
prototype to define getters and setters, or simply with defining them
right on the class (see the code in `proxyComponent`,
`proxyCustomElement`, and friends, where we do just this).
However, with a `target` of ES2022 or higher (e.g. `ESNext`) default
behavior for TypeScript is instead to emit code like this:
```ts
class CompiledMyClass {
foo = "bar"
}
```
This output is more correct because the compiled code 1) more closely
resembles the TypeScript source and 2) is using standard JS syntax instead
of desugaring it. There is an announcement in the release notes for
TypeScript v3.7 which explains some helpful background about the change,
and about the `useDefineForClassFields` TypeScript option which lets you
opt-in to the old output:
https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-7.html#the-usedefineforclassfields-flag-and-the-declare-property-modifier
For our use-case, however, the ES2022+ behavior doesn't work, since we
need to be able to define getters and setters on these fields. We could
require that the TypeScript configuration used for Stencil have the
`useDefineForClassFields` setting set to `false`, but that would have
the undesirable side-effect that class fields which are _not_ decorated
with a Stencil decorator for which we require getters and setters
(`@State`, `@Prop`) would _also_ be instantiated in the constructor.
So instead, we take matters into our own hands. When we encounter a
class field which is decorated with a Stencil decorator we remove it
from the class and add a statement to the constructor to instantiate it
with the correct default value.
This commit makes the change to do that for fields decorated with
`@State` and `@Prop`.
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There is a lot of detail here! Check the diff for an essay in a comment on the
handleClassFieldsfunction which explains much of what's going on here.Pull request checklist
Please check if your PR fulfills the following requirements:
npm run build) was run locally and any changes were pushednpm test) were run locally and passednpm run test.karma.prod) were run locally and passednpm run prettier) was run locally and passedPull request type
Please check the type of change your PR introduces:
What is the current behavior?
GitHub Issue Number: N/A
What is the new behavior?
Does this introduce a breaking change?
Testing
If you want to test this out you can
npm run build && npm pack.tgzinto the repo linked from bug: esnext target (Public Instance Fields) breaks State props rerendering #3130npm startwith thetargetfield intsconfig.jsonset to bothes2017andESNextYou could also try to confirm first that you can reproduce the error described so you know what you're looking for - basically, with a current version of Stencil if you set
ES2022orESNextthe@Stateprops won't rerender properly, and you'll just see a sad facsimile of interactivity when younpm start. If you install the fix in this branch, however, you'll be increasing and decreasing a counter until the cows come home 🐮🤠Other information