fix: 🐛 broken matInput without ngModel

Author: DmitryEfimenko

projects/ngx-errors/src/lib/set-mat-input-error-state-matcher.directive.ts

@@ -17,6 +17,10 @@ export class SetMatInputErrorStateMatcherDirective implements OnDestroy {
     @Self() private matInput: MatInput,
     private overriddenShowWhen: OverriddenShowWhen
   ) {
+    if (!this.matInput.ngControl) {
+      return;
+    }
+
     const control = this.matInput.ngControl.control;
 
     const sub = overriddenShowWhen.controlOverridden$

projects/playground/src/app/lazy/lazy.component.html

@@ -31,6 +31,8 @@
   <button type="submit">Submit</button>
 </form>
 
+<hr />
+
 <mat-form-field appearance="fill">
   <mat-label>Name</mat-label>
 
@@ -53,3 +55,9 @@
     <span ngxError="minlength">Name should be at least 10 chars - DIMA</span>
   </mat-error>
 </mat-form-field>
+
+<mat-form-field appearance="fill">
+  <mat-label>Name</mat-label>
+
+  <input matInput value="Input without ngModel" required autocomplete="off" />
+</mat-form-field>