refactor: svgNodeFilter

projects/cdk/constants/svg-node-filter.ts

@@ -1,6 +1,7 @@
-// Filtering SVGElements for TreeWalker
-// Filter must be a function in IE, other modern browsers are compliant to this format
-export const svgNodeFilter: NodeFilter = ((node: Node) =>
-    'ownerSVGElement' in node
-        ? NodeFilter.FILTER_REJECT
-        : NodeFilter.FILTER_ACCEPT) as any;
+export const svgNodeFilter: Exclude<NodeFilter, (node: Node) => number> = {
+    acceptNode(node: Node): number {
+        return 'ownerSVGElement' in node
+            ? NodeFilter.FILTER_REJECT
+            : NodeFilter.FILTER_ACCEPT;
+    },
+};

projects/cdk/constants/test/svg-node-filter.spec.ts

@@ -1,16 +1,15 @@
 import {svgNodeFilter} from '@taiga-ui/cdk';
 
-// TODO: 3.0 rewrite tests after IE removing
 describe('SvgNodeFilter', () => {
     it('child SVG', () => {
-        const node: Node = {ownerSVGElement: null} as unknown as Node;
-
-        expect((svgNodeFilter as any)(node)).toBe(NodeFilter.FILTER_REJECT);
+        expect(svgNodeFilter.acceptNode({ownerSVGElement: null} as unknown as Node)).toBe(
+            NodeFilter.FILTER_REJECT,
+        );
     });
 
     it('not child SVG', () => {
-        const node: Node = {} as unknown as Node;
-
-        expect((svgNodeFilter as any)(node)).toBe(NodeFilter.FILTER_ACCEPT);
+        expect(svgNodeFilter.acceptNode({} as unknown as Node)).toBe(
+            NodeFilter.FILTER_ACCEPT,
+        );
     });
 });