feat: Allow const enums (#497)

plexinc · Jul 11, 2023 · 194e505 · 194e505
1 parent 3958e77
commit 194e505
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Showing 2 changed files with 7 additions and 1 deletion.
diff --git a/src/__tests__/schema.test.ts b/src/__tests__/schema.test.ts
@@ -9,6 +9,7 @@ enum TEST_ENUM {
   FOO = 'foo',
   BAR = 'bar',
 }
+const READONLY_CONST_VALUES = ['qux', 'baz'] as const;
 
 describe('schema', () => {
   test('simple', () => {
@@ -465,6 +466,7 @@ describe('schema', () => {
         decimalOptional: types.decimal(),
         decimalRequired: types.decimal({ required: true }),
         enumOptional: types.enum([...Object.values(TEST_ENUM), null]),
+        enumReadonly: types.enum(READONLY_CONST_VALUES),
         enumRequired: types.enum(Object.values(TEST_ENUM), { required: true }),
         nullOptional: types.null(),
         nullRequired: types.null({ required: true }),
@@ -596,6 +598,9 @@ describe('schema', () => {
         enumOptional: {
           enum: ['foo', 'bar', null],
         },
+        enumReadonly: {
+          enum: ['qux', 'baz'],
+        },
         enumRequired: {
           enum: ['foo', 'bar'],
         },
@@ -736,6 +741,7 @@ describe('schema', () => {
       decimalOptional?: Decimal128;
       decimalRequired: Decimal128;
       enumOptional?: TEST_ENUM | null;
+      enumReadonly?: 'qux' | 'baz';
       enumRequired: TEST_ENUM;
       nullOptional?: null;
       nullRequired: null;

diff --git a/src/types.ts b/src/types.ts
@@ -150,7 +150,7 @@ function constant<Value, Options extends GenericOptions>(
 }
 
 function enumType<Enum, Options extends GenericOptions>(
-  values: Enum[],
+  values: readonly Enum[],
   options?: Options
 ): GetType<Enum, Options> {
   return {