Remove the CKEditor 5 logger and its usage

src/dom/rect.js

@@ -10,7 +10,6 @@
 import isRange from './isrange';
 import isWindow from './iswindow';
 import getBorderWidths from './getborderwidths';
-import log from '../log';
 import isText from './istext';
 import { isElement } from 'lodash-es';
 
@@ -67,26 +66,16 @@ export default class Rect {
 		} );
 
 		if ( isElement( source ) || isSourceRange ) {
-			const sourceNode = isSourceRange ? source.startContainer : source;
-
-			if ( !sourceNode.ownerDocument || !sourceNode.ownerDocument.body.contains( sourceNode ) ) {
-				/**
-				 * The `Rect` class depends on `getBoundingClientRect` and `getClientRects` DOM methods.
-				 * If the {@link #constructor source} of a rect in an HTML element or a DOM range but it does
-				 * not belong to any rendered DOM tree, these methods will fail to obtain the geometry and
-				 * the rect instance makes little sense to the features using it.
-				 *
-				 * To get rid of this warning make sure the source passed to the constructor
-				 * is a descendant of `window.document.body`.
-				 *
-				 * @error rect-source-not-in-dom
-				 * @param {String} source The source of the Rect instance.
-				 */
-				log.warn(
-					'rect-source-not-in-dom: The source of this rect does not belong to any rendered DOM tree.',
-					{ source }
-				);
-			}
+			// The `Rect` class depends on `getBoundingClientRect` and `getClientRects` DOM methods. If the source
+			// of a rect in an HTML element or a DOM range but it does not belong to any rendered DOM tree, these methods
+			// will fail to obtain the geometry and the rect instance makes little sense to the features using it.
+			// To get rid of this warning make sure the source passed to the constructor is a descendant of `window.document.body`.
+			// @if CK_DEBUG // const sourceNode = isSourceRange ? source.startContainer : source;
+			// @if CK_DEBUG // if ( !sourceNode.ownerDocument || !sourceNode.ownerDocument.body.contains( sourceNode ) ) {
+			// @if CK_DEBUG // 	console.warn(
+			// @if CK_DEBUG // 		'rect-source-not-in-dom: The source of this rect does not belong to any rendered DOM tree.',
+			// @if CK_DEBUG // 		{ source } );
+			// @if CK_DEBUG // }
 
 			if ( isSourceRange ) {
 				copyRectProperties( this, Rect.getDomRangeRects( source )[ 0 ] );

src/version.js

@@ -9,8 +9,8 @@
 
 /* globals window, global */
 
-import log from './log';
 import { version } from 'ckeditor5/package.json';
+import CKEditorError from './ckeditorerror';
 
 const windowOrGlobal = typeof window === 'object' ? window : global;
 
@@ -138,7 +138,10 @@ if ( windowOrGlobal.CKEDITOR_VERSION ) {
 	 *
 	 * @error ckeditor-duplicated-modules
 	 */
-	log.error( 'ckeditor-duplicated-modules: Some CKEditor 5 modules are duplicated.' );
+	throw new CKEditorError(
+		'ckeditor-duplicated-modules: Some CKEditor 5 modules are duplicated.',
+		null
+	);
 } else {
 	windowOrGlobal.CKEDITOR_VERSION = version;
 }

tests/_utils-tests/utils.js

@@ -29,7 +29,7 @@ describe( 'utils - testUtils', () => {
 		} );
 
 		it( 'should create an observer', () => {
-			function Emitter() { }
+			function Emitter() {}
 			Emitter.prototype = EmitterMixin;
 
 			expect( observer ).to.be.instanceof( Emitter );

tests/collection.js

@@ -522,7 +522,7 @@ describe( 'Collection', () => {
 			sinon.assert.calledWithExactly( spy, callback, ctx );
 			expect( ret ).to.deep.equal( [ 'foo' ], 'ret value was forwarded' );
 
-			function callback() { }
+			function callback() {}
 		} );
 	} );
 
@@ -538,7 +538,7 @@ describe( 'Collection', () => {
 			sinon.assert.calledWithExactly( spy, callback, ctx );
 			expect( ret ).to.equal( needl, 'ret value was forwarded' );
 
-			function callback() { }
+			function callback() {}
 		} );
 	} );
 
@@ -555,7 +555,7 @@ describe( 'Collection', () => {
 			sinon.assert.calledWithExactly( spy, callback, ctx );
 			expect( ret ).to.deep.equal( [ needl ], 'ret value was forwarded' );
 
-			function callback() { }
+			function callback() {}
 		} );
 	} );
 
@@ -700,7 +700,7 @@ describe( 'Collection', () => {
 			} );
 
 			it( 'does not chain', () => {
-				const returned = collection.bindTo( new Collection() ).using( () => { } );
+				const returned = collection.bindTo( new Collection() ).using( () => {} );
 
 				expect( returned ).to.be.undefined;
 			} );