[FEATURE] pattern matching in variables

[LuisOtavio13]

Summary

Currently, no programming language accepts pattern matching in variables.

Problem

It's very verbose to use pattern matching on variables, so today I propose creating pattern matching for variables.

Proposed Solution

adopt the use of syntax

   let x {  y > 8 } =y+1;

x will have y+1 only if y is greater than 8.
x is Option

Impact Area

Mark the area most affected:

• syntax / language design
• frontend / parser
• frontend / checker
• middleend / IR
• docs / workflow
• tooling / CI
• other

Example

func main() : (){
 let y = 10;
 let x { y > 7 } = 20;
()
}