We're checking types!!!!

src/ast.ts

@@ -142,7 +142,7 @@ export type RecordUpdate = {
 export type Definition = {
     kind: 'definition'
     name: string
-    body: AST
+    body?: AST
     line?: number
     column?: number
     start?: number
@@ -327,6 +327,7 @@ export function prettyPrint(ast: AST, indent = 0): string {
             const ann = ast.annotation
                 ? ` : ${prettyPrintType(ast.annotation.type)}`
                 : '';
+            if (!ast.body) return `${ast.name}${ann};`;
             return `${ast.name}${ann} = ${prettyPrint(ast.body, indent)};`;
 
         default:
@@ -398,18 +399,18 @@ export function prettyPrintType(type: TypeAST): string {
     }
 }
 
-function prettyPrintTypeDefinition(td: TypeDefinition): string {
-    const params = td.params.length > 0 ? ' ' + td.params.join(' ') : '';
-    const ctors = td.constructors.map(c => {
-        const args = c.args.map(a =>
-            a.kind === 'type-function' || a.kind === 'type-apply'
-                ? `(${prettyPrintType(a)})`
-                : prettyPrintType(a)
-        ).join(' ');
-        return args ? `${c.name} ${args}` : c.name;
-    }).join(' | ');
-    return `${td.name}${params} = ${ctors};`;
-}
+// function prettyPrintTypeDefinition(td: TypeDefinition): string {
+//     const params = td.params.length > 0 ? ' ' + td.params.join(' ') : '';
+//     const ctors = td.constructors.map(c => {
+//         const args = c.args.map(a =>
+//             a.kind === 'type-function' || a.kind === 'type-apply'
+//                 ? `(${prettyPrintType(a)})`
+//                 : prettyPrintType(a)
+//         ).join(' ');
+//         return args ? `${c.name} ${args}` : c.name;
+//     }).join(' | ');
+//     return `${td.name}${params} = ${ctors};`;
+// }
 
 function needsQuotes(key: string): boolean {
     return key === '_' || !/^[a-zA-Z_][a-zA-Z0-9_]*$/.test(key);