rust/src/test/compile-fail/mutable-class-fields-2.rs

// error-pattern:assigning to immutable field
struct cat {
  priv mut meows : uint,

  how_hungry : int,
}

impl cat {
  fn eat() {
    self.how_hungry -= 5;
  }

}

fn cat(in_x : uint, in_y : int) -> cat {
    cat {
        meows: in_x,
        how_hungry: in_y
    }
}

fn main() {
  let nyan : cat = cat(52u, 99);
  nyan.eat();
}
Require "self" as base expression for intra-class method or field references All field or method references within a class must begin with "self." now. A bare reference to a field or method in the same class will no longer typecheck. 2012-03-29 12:21:13 -07:00			`// error-pattern:assigning to immutable field`
Remove the class keyword 2012-08-15 18:46:55 -07:00			`struct cat {`
Remove priv sections from classes. Obsolete the syntax 2012-09-10 18:56:07 -07:00			`priv mut meows : uint,`
Enforce mutability declarations in classes; correct shapes for classes 1. Enforce mutability declarations on class fields. Don't allow any mutation of class fields not declared as mutable (except inside the constructor). 2. Handle classes correctly in shape (treat classes like records). 2012-03-27 22:08:48 -07:00
Remove 'let' syntax for struct fields 2012-09-06 19:40:15 -07:00			`how_hungry : int,`
Convert class methods to impl methods. Stop parsing class methods 2012-09-07 19:04:40 -07:00			`}`
Enforce mutability declarations in classes; correct shapes for classes 1. Enforce mutability declarations on class fields. Don't allow any mutation of class fields not declared as mutable (except inside the constructor). 2. Handle classes correctly in shape (treat classes like records). 2012-03-27 22:08:48 -07:00
Convert class methods to impl methods. Stop parsing class methods 2012-09-07 19:04:40 -07:00			`impl cat {`
Enforce mutability declarations in classes; correct shapes for classes 1. Enforce mutability declarations on class fields. Don't allow any mutation of class fields not declared as mutable (except inside the constructor). 2. Handle classes correctly in shape (treat classes like records). 2012-03-27 22:08:48 -07:00			`fn eat() {`
Require "self" as base expression for intra-class method or field references All field or method references within a class must begin with "self." now. A bare reference to a field or method in the same class will no longer typecheck. 2012-03-29 12:21:13 -07:00			`self.how_hungry -= 5;`
Enforce mutability declarations in classes; correct shapes for classes 1. Enforce mutability declarations on class fields. Don't allow any mutation of class fields not declared as mutable (except inside the constructor). 2. Handle classes correctly in shape (treat classes like records). 2012-03-27 22:08:48 -07:00			`}`

Remove struct ctors 2012-09-05 15:58:43 -07:00			`}`

			`fn cat(in_x : uint, in_y : int) -> cat {`
			`cat {`
			`meows: in_x,`
			`how_hungry: in_y`
			`}`
Enforce mutability declarations in classes; correct shapes for classes 1. Enforce mutability declarations on class fields. Don't allow any mutation of class fields not declared as mutable (except inside the constructor). 2. Handle classes correctly in shape (treat classes like records). 2012-03-27 22:08:48 -07:00			`}`

			`fn main() {`
			`let nyan : cat = cat(52u, 99);`
			`nyan.eat();`
			`}`