RFCs

This document tracks RFCs, both implemented and not implemented (implemented RFC should eventually go way from here).

Deprecate clone operator and replace it with .clone method

Status: Implemented, as optional behavior currently. Can be specified by #forbid-clone-operator or #allow-clone-operator

Replace let with const

Replace ‘let’ for immutables with ‘const’ keyword or make them aliases.

const and let for simple types works the same from coder PoV. let and const declarations for simple types (integer, float, string, null, boolean) can be optimized (we do know in compile time what is it). For other types const should work as ‘binding’ (like let do now).

Status: Waiting for implementation

Add .hasindex() for instances, classes, tables, arrays and strings.

Should behave as ‘in’ operator, but exists only for types that can have ‘index’, and should have correct check of arguments type (arrays and strings can have only integer as index)

Status: Waiting for implementation

Add .hasvalue() for tables and arrays.

The same as ‘contains’ for arrays. To make it more consistent with findvalue() and findindex() and hasindex()

Status: Waiting for implementation

assignments in ‘if’ (let and local)

  if (let a = foo()){
    println(a)
  }

equals to (except scope of visibility of ‘a’):

  let a = foo()
  if (a) {
    println(a)
  }

This is sometimes much less verbose and safer to use. The same as warlus operator in python, but we do not need it in Quirrel, cause we have expicit declaration of variables

Status: Waiting for implementation

Add for and foreach in ranges

Syntax like:

for (range:integer)
for (start_of_range:integer, end_of_range:integer)
foreach (i in range:integer)

Will allow to make code faster and safer than with for(local i=0; i<range; i++)

Status: Needs implementation

Return back _inherited and _newmember metamethods for classes, or implement some other way to validate children classes

Status: Not going to be implemented. _lock method is much more powerful and useful.

Keyworded arguments for function calls, like Python

function foo(a=1, b=2){} foo(b=3) //the same as foo(1, 3), but much safer

Should work almost the same as kwarg() function from functools.nut do or how python allow function calls. As quirrel function has in it’s infos information about default arguments, it can be called.