2e9fdbde9e
In JIT compiled apps, component definitions are compiled upon first access. For a component class `A` that extends component class `B`, the `B` component is also compiled when the `InheritDefinitionFeature` runs during the compilation of `A` before it has finalized. A problem arises when the compilation of `B` would flush the NgModule scoping queue, where the NgModule declaring `A` is still pending. The scope information would be applied to the definition of `A`, but its compilation is still in progress so requesting the component definition would compile `A` again from scratch. This "inner compilation" is correctly assigned the NgModule scope, but once the "outer compilation" of `A` finishes it would overwrite the inner compilation's definition, losing the NgModule scope information. In summary, flushing the NgModule scope queue could trigger a reentrant compilation, where JIT compilation is non-reentrant. To avoid the reentrant compilation, a compilation depth counter is introduced to avoid flushing the NgModule scope during nested compilations. Fixes #37105 PR Close #37795
Angular
The sources for this package are in the main Angular repo. Please file issues and pull requests against that repo.
Usage information and reference details can be found in Angular documentation.
License: MIT