Struct CSCDARG

pub struct CSCDARG<'a, FT> { /* private fields */ }

CSCDARG is Structure Data Type to Keep Track Parameter Changes Struct for CSCDARG

Implementations

impl<'a, FT> CSCDARG<'a, FT>

CSCDARG Self Implement

pub fn new(func: FT) -> CSCDARG<'a, FT>

CSCDARG Constructor CSCDARG::new(wrapper_func)

example:

  use csclib::*;
  pub fn wrapper<'a>(args:Vec<Box<dyn Any>>)->(&'a str,usize)
    {
      let (a,b,c);
      a=*args[0].downcast_ref::<&str>().unwrap();
      b=*args[1].downcast_ref::<usize>().unwrap();
      c=*args[2].downcast_ref::<usize>().unwrap();
      tfunc(a,b,c)
    }
  pub fn tfunc(a:&str,b:usize,c:usize)->(&str,usize)
    {
      (a,b+b*b+c)
    }
  let itr;
  itr=CSCDARG::new(wrapper)
    .set(("a",""))  // set default value for parameter 'a'
    .set(("b",2_usize)) // set default value for parameter 'b'
    .set(("a","CSC")) // set value for parameter 'a'
    .set(("b",8_usize)) //  set value for parameter 'b'
    .set(("c",3_usize)) // set default value for parameter 'c'
    .set(("c",5_usize)) // set value for parameter 'c'
    .set(("t",13_usize)) // set default value for parameter 't', which never use
    .set(("a",7_i32)) // set invalid value for parameter 'a' which cause panic
    .call(); // return final result of execute wrapper function
  println!("{:?}",itr);

pub fn set<G>(self, arg: (&'a str, G)) -> Self

where G: 'static,

Helper Functon to Set or Modify Position Parameter Each Parameter Have to Follow Position With Format (“parameter_name”,Assigned Repective Value)

example:

  // --snip-- 
  let itr;
  itr=CSCDARG::new(wrapper)
    .set(("a",""))  // set default value for parameter 'a'
    // --snip-- 
    .set(("t",13_usize)) // set default value for parameter 't', which never use

pub fn call<VT>(self) -> VT

where FT: Fn(Vec<Box<dyn Any>>) -> VT,

Action Functon to Execute Wrapper

example:

  // --snip-- 
  let itr;
  itr=CSCDARG::new(wrapper)
    .set(("a",""))  // set default value for parameter 'a'
    // --snip-- 
    .set(("t",13_usize)) // set default value for parameter 't', which never use
    .call(); // return final result of execute wrapper function
  println!("{:?}",itr);

Trait Implementations

impl<'a, FT: Debug> Debug for CSCDARG<'a, FT>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.