Function compile 

pub fn compile(source: &str, fns: &[Box<dyn Function>]) -> Result

Compiles the given source code into the final Program.

This function initializes an external environment and default compilation configuration before invoking the compilation process.

Arguments

• source - The source code to be compiled.
• fns - A list of function definitions available during compilation.

Returns

A Result containing the compiled program or a diagnostic error.

Errors

On compilation error, a list of diagnostics is returned.