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pzol/builder_test.rs

Created February 6, 2014 09:44
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builder_test.rs
#[deriving(Eq)]
struct ParamsBuilder {
foo: uint,
bar: ~str,
baz: uint,
run: bool
}
impl ParamsBuilder {
fn default() -> ParamsBuilder{
ParamsBuilder { foo: 0, bar: ~"", baz: 0, run: false }
}
fn foo(mut self, foo: uint) -> ParamsBuilder {
self.foo = foo;
self
}
fn bar(mut self, bar: ~str) -> ParamsBuilder {
self.bar = bar;
self
}
fn baz(mut self, baz: uint) -> ParamsBuilder {
self.baz = baz;
self
}
fn run(mut self) -> ParamsBuilder {
self.run = true;
println!("{:?}", self);
self
}
}
#[test]
fn test_chain(){
let mp = ParamsBuilder::default().foo(1).bar(~"bar").baz(2).run();
assert_eq!(ParamsBuilder { foo: 1, bar: ~"bar", baz: 2, run: true }, mp);
}
@lifthrasiir
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struct MyParams {
    foo: uint,
    bar: ~str,
    baz: uint
}

impl MyParams {
  fn default() -> MyParams{
    MyParams { foo: 0, bar: ~"", baz: 0 }
  }

  fn foo(mut self, foo: uint) -> MyParams{
    self.foo = foo;
    self
  }

  fn bar(mut self, bar: ~str) -> MyParams{
    self.bar = bar;
    self
  }
}

#[test]
fn test_chain(){
  let mp = MyParams::default().foo(1).bar(~"bar");

  println!("{:?}", mp);

}

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