REFLECT

Reflect Module

The reflect module provides runtime type inspection and reflection utilities for VintLang. It allows you to examine the type and structure of values, check for null, and determine if a value is an array, object, or function.

Importing

import reflect

Functions

reflect.typeOf(value)

Returns the type name of the given value as a string.

• Arguments:
  • value: Any value
• Returns: String (e.g., "STRING", "ARRAY", "DICT", "NULL", "FUNCTION", etc.)
• Example:

  reflect.typeOf("hello")        // "STRING"
  reflect.typeOf([1,2,3])        // "ARRAY"
  reflect.typeOf({"a": 1})      // "DICT"
  reflect.typeOf(null)           // "NULL"
  reflect.typeOf(func() {})      // "FUNCTION"
  

reflect.valueOf(value)

Returns the raw value passed in (identity function).

• Arguments:
  • value: Any value
• Returns: The same value
• Example:

  reflect.valueOf(42); // 42
  reflect.valueOf("foo"); // "foo"
  

reflect.isNil(value)

Checks if the value is null.

• Arguments:
  • value: Any value
• Returns: Boolean
• Example:

  reflect.isNil(null); // true
  reflect.isNil(123); // false
  

reflect.isArray(value)

Checks if the value is an array.

• Arguments:
  • value: Any value
• Returns: Boolean
• Example:

  reflect.isArray([1, 2, 3]); // true
  reflect.isArray("not array"); // false
  

reflect.isObject(value)

Checks if the value is a dictionary/object.

• Arguments:
  • value: Any value
• Returns: Boolean
• Example:

  reflect.isObject({ a: 1 }); // true
  reflect.isObject([1, 2, 3]); // false
  

reflect.isFunction(value)

Checks if the value is a function.

• Arguments:
  • value: Any value
• Returns: Boolean
• Example:

  let f = func(x) { x * 2 }
  reflect.isFunction(f)          // true
  reflect.isFunction(123)        // false
  

Example Usage

See examples/reflect.vint for a full demonstration of all reflect module functions.