planning

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

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+// @flow
+
+import getType from '../util/get_type.js';
+import ValidationError from '../error/validation_error.js';
+
+import type {ValidationOptions} from './validate.js';
+
+type Options = ValidationOptions & {
+    arrayIndex: number;
+}
+
+export default function validateNumber(options: Options): Array<ValidationError> {
+    const key = options.key;
+    const value = options.value;
+    const valueSpec = options.valueSpec;
+    let type = getType(value);
+
+    // eslint-disable-next-line no-self-compare
+    if (type === 'number' && value !== value) {
+        type = 'NaN';
+    }
+
+    if (type !== 'number') {
+        return [new ValidationError(key, value, `number expected, ${type} found`)];
+    }
+
+    if ('minimum' in valueSpec) {
+        let specMin = valueSpec.minimum;
+        if (getType(valueSpec.minimum) === 'array') {
+            const i = options.arrayIndex;
+            specMin = valueSpec.minimum[i];
+        }
+        if (value < specMin) {
+            return [new ValidationError(key, value, `${value} is less than the minimum value ${specMin}`)];
+        }
+    }
+
+    if ('maximum' in valueSpec) {
+        let specMax = valueSpec.maximum;
+        if (getType(valueSpec.maximum) === 'array') {
+            const i = options.arrayIndex;
+            specMax = valueSpec.maximum[i];
+        }
+        if (value > specMax) {
+            return [new ValidationError(key, value, `${value} is greater than the maximum value ${specMax}`)];
+        }
+    }
+
+    return [];
+}