👍 use [@core/unknownutil@4.3.0/is/custom-jsonable]

Author: Milly

deno.jsonc

@@ -42,7 +42,7 @@
     ]
   },
   "imports": {
-    "@core/unknownutil": "jsr:@core/unknownutil@^4.1.0",
+    "@core/unknownutil": "jsr:@core/unknownutil@^4.3.0",
     "@denops/core": "jsr:@denops/core@^7.0.0",
     "@denops/test": "jsr:@denops/test@^3.0.1",
     "@lambdalisue/errorutil": "jsr:@lambdalisue/errorutil@^1.0.0",

eval/stringify.ts

@@ -1,5 +1,6 @@
 import { isArray } from "@core/unknownutil/is/array";
 import { isBoolean } from "@core/unknownutil/is/boolean";
+import { isCustomJsonable } from "@core/unknownutil/is/custom-jsonable";
 import { isFunction } from "@core/unknownutil/is/function";
 import { isInstanceOf } from "@core/unknownutil/is/instance-of";
 import { isNullish } from "@core/unknownutil/is/nullish";
@@ -81,7 +82,7 @@ export function stringify(value: unknown): string {
     if (isExprString(value)) {
       return `"${value.replaceAll('"', '\\"')}"`;
     }
-    if (isJsonable(value)) {
+    if (isCustomJsonable(value)) {
       value = value.toJSON(key);
       if (isVimEvaluatable(value)) {
         return toVimExpression(value);
@@ -136,19 +137,6 @@ export function stringify(value: unknown): string {
   return reduce(value, "");
 }
 
-type Jsonable = {
-  /**
-   * Returns a JSON value that can be specified to {@linkcode JSON.stringify}.
-   *
-   * @see {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify#tojson_behavior|toJSON() behavior}
-   */
-  toJSON(key: string | number): unknown;
-};
-
-function isJsonable(x: unknown): x is Jsonable {
-  return x != null && isFunction((x as Jsonable).toJSON);
-}
-
 function isIgnoreRecordValue(x: unknown): boolean {
   return isUndefined(x) || isFunction(x) || isSymbol(x);
 }

helper/expr_string.ts

@@ -136,6 +136,7 @@ export function isExprString(x: unknown): x is ExprString {
   })(x);
 }
 
+// NOTE: Do not use [@core/unknownutil@4.3.0/is/custom-jsonable], it's changes behaviour.
 function isJsonable(x: unknown): x is Jsonable {
   return x != null && isFunction((x as Jsonable).toJSON);
 }