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

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

  let how_hungry : int;

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

  new(in_x : uint, in_y : int) { self.meows = in_x; self.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 14:21:13 -05:00			`// error-pattern:assigning to immutable field`
Remove the class keyword 2012-08-15 20:46:55 -05:00			`struct 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). 2012-03-28 00:08:48 -05:00			`priv {`
syntax: Eliminate 'mutable' keyword. Closes #2254 2012-04-21 15:42:54 -05:00			`let 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). 2012-03-28 00:08:48 -05:00			`}`

			`let how_hungry : int;`

			`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 14:21:13 -05:00			`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). 2012-03-28 00:08:48 -05:00			`}`

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 14:21:13 -05:00			`new(in_x : uint, in_y : int) { self.meows = in_x; self.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). 2012-03-28 00:08:48 -05:00			`}`

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