fix(wd-form): empty toast when reject is Error

src/uni_modules/wot-design-uni/components/wd-form/types.ts

@@ -35,7 +35,10 @@ export interface FormItemRule {
   required: boolean
   message: string
   pattern?: RegExp
-  validator?: (value: any, rule: FormItemRuleWithoutValidator) => boolean | Promise<string> | Promise<boolean> | Promise<void> | Promise<unknown>
+  validator?: (
+    value: any,
+    rule: FormItemRuleWithoutValidator
+  ) => boolean | Promise<string> | Promise<Error> | Promise<boolean> | Promise<void> | Promise<unknown>
 }
 
 export type FormItemRuleWithoutValidator = Omit<FormItemRule, 'validator'>

src/uni_modules/wot-design-uni/components/wd-form/wd-form.vue

@@ -94,11 +94,23 @@ async function validate(prop?: string): Promise<{ valid: boolean; errors: ErrorM
                     valid = false
                   }
                 })
-                .catch((error) => {
-                  errors.push({
-                    prop,
-                    message: error || rule.message
-                  })
+                .catch((error: any) => {
+                  if (error instanceof Error) {
+                    errors.push({
+                      prop,
+                      message: error.message || rule.message
+                    })
+                  } else if (typeof error === 'string') {
+                    errors.push({
+                      prop,
+                      message: error
+                    })
+                  } else {
+                    errors.push({
+                      prop,
+                      message: rule.message
+                    })
+                  }
                   valid = false
                 })
             )