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authorGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
committerGravatar Piotr Russ <mail@pruss.it> 2020-11-16 00:10:28 +0100
commite06ec920f7a5d784e674c4c4b4e6d1da3dc7391d (patch)
tree55713f725f77b44ebfec86e4eec3ce33e71458ca /node_modules/mongoose/lib/cast/number.js
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Diffstat (limited to 'node_modules/mongoose/lib/cast/number.js')
-rw-r--r--node_modules/mongoose/lib/cast/number.js43
1 files changed, 43 insertions, 0 deletions
diff --git a/node_modules/mongoose/lib/cast/number.js b/node_modules/mongoose/lib/cast/number.js
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+++ b/node_modules/mongoose/lib/cast/number.js
@@ -0,0 +1,43 @@
+'use strict';
+
+const assert = require('assert');
+
+/*!
+ * Given a value, cast it to a number, or throw a `CastError` if the value
+ * cannot be casted. `null` and `undefined` are considered valid.
+ *
+ * @param {Any} value
+ * @param {String} [path] optional the path to set on the CastError
+ * @return {Boolean|null|undefined}
+ * @throws {Error} if `value` is not one of the allowed values
+ * @api private
+ */
+
+module.exports = function castNumber(val) {
+ if (val == null) {
+ return val;
+ }
+ if (val === '') {
+ return null;
+ }
+
+ if (typeof val === 'string' || typeof val === 'boolean') {
+ val = Number(val);
+ }
+
+ assert.ok(!isNaN(val));
+ if (val instanceof Number) {
+ return val.valueOf();
+ }
+ if (typeof val === 'number') {
+ return val;
+ }
+ if (!Array.isArray(val) && typeof val.valueOf === 'function') {
+ return Number(val.valueOf());
+ }
+ if (val.toString && !Array.isArray(val) && val.toString() == Number(val)) {
+ return Number(val);
+ }
+
+ assert.ok(false);
+};