refactor(jslib): specific constant for any instead of undefined

tools/upend_js/query.ts

@@ -1,27 +1,28 @@
 import type { Address } from "./types";
 import { isAddress } from "./types";
 
-type OneOrMany<T> = T | T[];
+export const Any = "?";
+type QueryPart<T> = T | T[] | typeof Any;
 
 export class Query {
   private _query: string | undefined;
 
-  public matches(
-    entity: OneOrMany<string> | undefined,
-    attribute: OneOrMany<string> | undefined,
-    value: OneOrMany<string | number | Address> | undefined
+  public static matches(
+    entity: QueryPart<string>,
+    attribute: QueryPart<string>,
+    value: QueryPart<string | number | Address>
   ): Query {
     const query = new Query();
 
     let entityStr;
-    if (entity === undefined) {
+    if (entity === Any) {
       entityStr = "?";
     } else {
       entityStr = Array.isArray(entity) ? `(in ${entity.join(" ")})` : entity;
     }
 
     let attributeStr;
-    if (attribute === undefined) {
+    if (attribute === Any) {
       attributeStr = "?";
     } else {
       attributeStr = Array.isArray(attribute)
@@ -30,7 +31,7 @@ export class Query {
     }
 
     let valueStr;
-    if (value === undefined) {
+    if (value === Any) {
       valueStr = "?";
     } else {
       valueStr = (Array.isArray(value) ? value : [value])

tools/upend_js/test.ts

@@ -1,26 +1,23 @@
 import test from "ava";
-import { Query } from "./query";
+import { Any, Query } from "./query";
 
 test("query matches simple", (t) => {
-  const query = new Query().matches("entity", "attribute", "value");
+  const query = Query.matches("entity", "attribute", "value");
   t.is(query.toString(), '(matches entity "attribute" "value")');
 });
 
 test("query matches anything", (t) => {
-  const query = new Query().matches(undefined, undefined, undefined);
+  const query = Query.matches(Any, Any, Any);
   t.is(query.toString(), "(matches ? ? ?)");
 });
 
 test("query matches array", (t) => {
-  const query = new Query().matches("entity", "attribute", [
-    "value1",
-    "value2",
-  ]);
+  const query = Query.matches("entity", "attribute", ["value1", "value2"]);
   t.is(query.toString(), '(matches entity "attribute" (in "value1" "value2"))');
 });
 
 test("query matches addresses", (t) => {
-  const query = new Query().matches("entity", "attribute", [
+  const query = Query.matches("entity", "attribute", [
     "@address1",
     "@address2",
   ]);
@@ -31,6 +28,6 @@ test("query matches addresses", (t) => {
 });
 
 test("query matches numbers", (t) => {
-  const query = new Query().matches("entity", "attribute", [1, 2]);
+  const query = Query.matches("entity", "attribute", [1, 2]);
   t.is(query.toString(), '(matches entity "attribute" (in 1 2))');
 });