planning

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

@@ -0,0 +1,62 @@
+// @flow
+
+import getType from '../util/get_type.js';
+import validate from './validate.js';
+import ValidationError from '../error/validation_error.js';
+
+import type {ValidationOptions} from './validate.js';
+
+type Options = ValidationOptions & {
+    arrayElementValidator: Function;
+};
+
+export default function validateArray(options: Options): Array<ValidationError> {
+    const array = options.value;
+    const arraySpec = options.valueSpec;
+    const style = options.style;
+    const styleSpec = options.styleSpec;
+    const key = options.key;
+    const validateArrayElement = options.arrayElementValidator || validate;
+
+    if (getType(array) !== 'array') {
+        return [new ValidationError(key, array, `array expected, ${getType(array)} found`)];
+    }
+
+    if (arraySpec.length && array.length !== arraySpec.length) {
+        return [new ValidationError(key, array, `array length ${arraySpec.length} expected, length ${array.length} found`)];
+    }
+
+    if (arraySpec['min-length'] && array.length < arraySpec['min-length']) {
+        return [new ValidationError(key, array, `array length at least ${arraySpec['min-length']} expected, length ${array.length} found`)];
+    }
+
+    let arrayElementSpec = {
+        "type": arraySpec.value,
+        "values": arraySpec.values,
+        "minimum": arraySpec.minimum,
+        "maximum": arraySpec.maximum,
+        function: undefined
+    };
+
+    if (styleSpec.$version < 7) {
+        arrayElementSpec.function = arraySpec.function;
+    }
+
+    if (getType(arraySpec.value) === 'object') {
+        arrayElementSpec = arraySpec.value;
+    }
+
+    let errors = [];
+    for (let i = 0; i < array.length; i++) {
+        errors = errors.concat(validateArrayElement({
+            array,
+            arrayIndex: i,
+            value: array[i],
+            valueSpec: arrayElementSpec,
+            style,
+            styleSpec,
+            key: `${key}[${i}]`
+        }));
+    }
+    return errors;
+}