planning

node_modules/@mapbox/mapbox-gl-style-spec/validate/validate_enum.js

@@ -0,0 +1,24 @@
+// @flow
+
+import ValidationError from '../error/validation_error.js';
+import {unbundle} from '../util/unbundle_jsonlint.js';
+
+import type {ValidationOptions} from './validate.js';
+
+export default function validateEnum(options: ValidationOptions): Array<ValidationError> {
+    const key = options.key;
+    const value = options.value;
+    const valueSpec = options.valueSpec;
+    const errors = [];
+
+    if (Array.isArray(valueSpec.values)) { // <=v7
+        if (valueSpec.values.indexOf(unbundle(value)) === -1) {
+            errors.push(new ValidationError(key, value, `expected one of [${valueSpec.values.join(', ')}], ${JSON.stringify(value)} found`));
+        }
+    } else { // >=v8
+        if (Object.keys(valueSpec.values).indexOf(unbundle(value)) === -1) {
+            errors.push(new ValidationError(key, value, `expected one of [${Object.keys(valueSpec.values).join(', ')}], ${JSON.stringify(value)} found`));
+        }
+    }
+    return errors;
+}