using Slang API to ignore trivia nodes

Author: Janther

src/slang-nodes/SlangNode.ts

@@ -1,5 +1,8 @@
-import { TerminalKind, TerminalNode } from '@nomicfoundation/slang/cst';
-import { createKindCheckFunction } from '../slang-utils/create-kind-check-function.js';
+import {
+  TerminalKind,
+  TerminalKindExtensions,
+  TerminalNode
+} from '@nomicfoundation/slang/cst';
 import { MultiLineComment } from '../slang-nodes/MultiLineComment.js';
 import { MultiLineNatSpecComment } from '../slang-nodes/MultiLineNatSpecComment.js';
 import { SingleLineComment } from '../slang-nodes/SingleLineComment.js';
@@ -9,15 +12,6 @@ import type { Edge } from '@nomicfoundation/slang/cst';
 import type { Comment, StrictAstNode } from '../slang-nodes/types.d.ts';
 import type { AstLocation, SlangAstNode } from '../types.d.ts';
 
-const isCommentOrWhiteSpace = createKindCheckFunction([
-  TerminalKind.MultiLineComment,
-  TerminalKind.MultiLineNatSpecComment,
-  TerminalKind.SingleLineComment,
-  TerminalKind.SingleLineNatSpecComment,
-  TerminalKind.EndOfLine,
-  TerminalKind.Whitespace
-]);
-
 const offsets = new Map<number, number>();
 export function clearOffsets(): void {
   offsets.clear();
@@ -40,7 +34,10 @@ function reversedIterator<T>(children: T[]): Iterable<T> {
 function getOffset(children: Edge[] | Iterable<Edge>): number {
   let offset = 0;
   for (const { node } of children) {
-    if (node.isNonterminalNode() || !isCommentOrWhiteSpace(node)) {
+    if (
+      node.isNonterminalNode() ||
+      !TerminalKindExtensions.isTrivia(node.kind)
+    ) {
       // The node's content starts when we find the first non-terminal token,
       // or if we find a non-comment, non-whitespace token.
       return offset;