Commit

node_modules/mongoose/lib/cast/double.js

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+'use strict';
+
+const assert = require('assert');
+const BSON = require('bson');
+const isBsonType = require('../helpers/isBsonType');
+
+/**
+ * Given a value, cast it to a IEEE 754-2008 floating point, or throw an `Error` if the value
+ * cannot be casted. `null`, `undefined`, and `NaN` are considered valid inputs.
+ *
+ * @param {Any} value
+ * @return {Number}
+ * @throws {Error} if `value` does not represent a IEEE 754-2008 floating point. If casting from a string, see [BSON Double.fromString API documentation](https://mongodb.github.io/node-mongodb-native/Next/classes/BSON.Double.html#fromString)
+ * @api private
+ */
+
+module.exports = function castDouble(val) {
+  if (val == null || val === '') {
+    return null;
+  }
+
+  let coercedVal;
+  if (isBsonType(val, 'Long')) {
+    coercedVal = val.toNumber();
+  } else if (typeof val === 'string') {
+    try {
+      coercedVal = BSON.Double.fromString(val);
+      return coercedVal;
+    } catch {
+      assert.ok(false);
+    }
+  } else if (typeof val === 'object') {
+    const tempVal = val.valueOf() ?? val.toString();
+    // ex: { a: 'im an object, valueOf: () => 'helloworld' } // throw an error
+    if (typeof tempVal === 'string') {
+      try {
+        coercedVal = BSON.Double.fromString(val);
+        return coercedVal;
+      } catch {
+        assert.ok(false);
+      }
+    } else {
+      coercedVal = Number(tempVal);
+    }
+  } else {
+    coercedVal = Number(val);
+  }
+
+  return new BSON.Double(coercedVal);
+};