Ivy doesn't report about missed component declaration

🐞 bug report

Affected Package

compiler

Is this a regression?

yes.

Without Ivy If you miss component declaration you get an error. Either during AOT build or serve ERROR in : Cannot determine the module for class ButtonComponent in ...

or with JIT in browser (ng serve)

compiler.js:2175 Uncaught Error: Template parse errors:
'app-button' is not a known element:

With Ivy Nothing reported in both modes! Nieither during the build, nor in the browser console.

Description

I belive it should be reporting about missed component declaration in all modes. Error message must include missed tag name.

🔬 Minimal Reproduction

here’s the repo to illistrate the problem https://github.com/fetis/ng8ivy

I created ButtonComponent and comment it in module declaration.

🌍 Your Environment

Angular Version: Angular CLI: 8.0.3 Node: 12.4.0 OS: darwin x64 Angular: 8.0.1 … animations, common, compiler, compiler-cli, core, forms … language-service, platform-browser, platform-browser-dynamic … router

Package Version

@angular-devkit/architect 0.800.3 @angular-devkit/build-angular 0.800.3 @angular-devkit/build-optimizer 0.800.3 @angular-devkit/build-webpack 0.800.3 @angular-devkit/core 8.0.3 @angular-devkit/schematics 8.0.3 @angular/cli 8.0.3 @ngtools/webpack 8.0.3 @schematics/angular 8.0.3 @schematics/update 0.800.3 rxjs 6.4.0 typescript 3.4.5 webpack 4.30.0

[alxhub]

Closing as we now have proper template type-checking including the error message that tells you your component should be part of an NgModule.

[kara]

hm, I hear different info from different ng-devs. Last time @matsko on local meetup said that the current status is kind of RC and all internal testing is complete.

Ivy isn’t RC yet (will be RC when v9 RC comes out). Internal testing is definitely still in-progress. We don’t have all the pieces done yet.