since we are not supporting prettier 2, getNode will not return undefined

Author: Janther

src/index.ts

@@ -51,7 +51,7 @@ const parsers = {
   [antlrParserId]: antlrParser
 };
 
-const solidityCanAttachComment = (node: { type: string }): boolean =>
+const antlrCanAttachComment = (node: { type: string }): boolean =>
   typeof node.type === 'string' &&
   node.type !== 'BlockComment' &&
   node.type !== 'LineComment';
@@ -63,7 +63,7 @@ const canAttachComment = (node: AstNode): boolean =>
 
 // https://prettier.io/docs/en/plugins.html#printers
 const antlrPrinter = {
-  canAttachComment: solidityCanAttachComment,
+  canAttachComment: antlrCanAttachComment,
   handleComments: {
     ownLine: comments.solidityHandleOwnLineComment,
     endOfLine: comments.solidityHandleEndOfLineComment,

src/slangPrinter.ts

@@ -20,10 +20,9 @@ function hasNodeIgnoreComment(node: StrictAstNode): boolean {
 }
 
 function ignoreComments(path: AstPath<AstNode>): void {
-  // TODO: remove undefined once we stop supporting prettier 2
   const node = path.getNode();
   // We ignore anything that is not an object
-  if (node === null || node === undefined || typeof node !== 'object') return;
+  if (node === null || typeof node !== 'object') return;
 
   const keys = Object.keys(node) as (keyof StrictAstNode)[];
   for (const key of keys) {
@@ -64,7 +63,7 @@ function genericPrint(
 ): Doc {
   const node = path.getNode();
 
-  if (typeof node === 'undefined' || node === null) {
+  if (node === null) {
     return '';
   }