Expose visitorKeys

Author: fisker

src/index.ts

@@ -1,2 +1,3 @@
 export * from './estree-parser.js';
 export type { NGMicrosyntax, NGNode } from './types.ts';
+export { visitorKeys } from './visitor-keys.js';

src/types.ts

@@ -11,14 +11,14 @@ export interface NGBaseNode extends LocationInformation {
   type: string;
 }
 
-export type NGNode =
-  | babel.Node
+export type NGOwnNode =
   | NGMicrosyntaxNode
   | NGEmptyExpression
   | NGPipeExpression
-  | NGQuotedExpression
   | NGChainedExpression;
 
+export type NGNode = babel.Node | NGOwnNode;
+
 export type CommentLine = babel.CommentLine & LocationInformation;
 
 export interface NGEmptyExpression extends NGBaseNode {
@@ -32,12 +32,6 @@ export interface NGPipeExpression extends NGBaseNode {
   arguments: babel.Expression[];
 }
 
-export interface NGQuotedExpression extends NGBaseNode {
-  type: 'NGQuotedExpression';
-  prefix: string;
-  value: string;
-}
-
 export interface NGChainedExpression extends NGBaseNode {
   type: 'NGChainedExpression';
   expressions: NGNode[];

src/visitor-keys.ts

@@ -0,0 +1,17 @@
+import type { NGOwnNode } from './types.ts';
+
+type VisitorKeys = {
+  [P in NGOwnNode as P['type']]: (keyof P)[];
+};
+
+export const visitorKeys: VisitorKeys = {
+  NGChainedExpression: ['expressions'],
+  NGEmptyExpression: [],
+  NGPipeExpression: ['left', 'right', 'arguments'],
+  NGMicrosyntax: ['body'],
+  NGMicrosyntaxAs: ['key', 'alias'],
+  NGMicrosyntaxExpression: ['expression', 'alias'],
+  NGMicrosyntaxKey: [],
+  NGMicrosyntaxKeyedExpression: ['key', 'expression'],
+  NGMicrosyntaxLet: ['key', 'value'],
+};