planning

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

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+// @flow
+
+import ValidationError from '../error/validation_error.js';
+import getType from '../util/get_type.js';
+import validate from './validate.js';
+
+import type {ValidationOptions} from './validate.js';
+
+export default function validateLight(options: ValidationOptions): Array<ValidationError> {
+    const light = options.value;
+    const styleSpec = options.styleSpec;
+    const lightSpec = styleSpec.light;
+    const style = options.style;
+
+    let errors = [];
+
+    const rootType = getType(light);
+    if (light === undefined) {
+        return errors;
+    } else if (rootType !== 'object') {
+        errors = errors.concat([new ValidationError('light', light, `object expected, ${rootType} found`)]);
+        return errors;
+    }
+
+    for (const key in light) {
+        const transitionMatch = key.match(/^(.*)-transition$/);
+
+        if (transitionMatch && lightSpec[transitionMatch[1]] && lightSpec[transitionMatch[1]].transition) {
+            errors = errors.concat(validate({
+                key,
+                value: light[key],
+                valueSpec: styleSpec.transition,
+                style,
+                styleSpec
+            }));
+        } else if (lightSpec[key]) {
+            errors = errors.concat(validate({
+                key,
+                value: light[key],
+                valueSpec: lightSpec[key],
+                style,
+                styleSpec
+            }));
+        } else {
+            errors = errors.concat([new ValidationError(key, light[key], `unknown property "${key}"`)]);
+        }
+    }
+
+    return errors;
+}