New Function to Perform Class Transformation #683

Feature Request

A new function named classTransform that converts a given input into an instance of a specific class.

The function could have the following signature:

typia.classTransform<T>(input: Primitive<T>): T;

This function takes two arguments:

• input: The primitive input to be converted.
• T: The target class that the input should be transformed into.

The function should return an instance of the class T with the given input.

This function would be particularly useful for converting raw input data into class instances. This issue is critical as it prevents proper type validation and transformation of the incoming request body, a common requirement in type-safe server-side applications. (see samchon/nestia#431)

Example Usage

Here is an example of how this function could be used:

class Foo {
  constructor(public value: string) {}

  bar() {
    return this.value;
  }
}

const input = {value: "test"};
const transformed = typia.classTransform<Test>(input);
console.log(transformed.bar()); // Should log: "test"