Thank you.
My problem is more complex than the example I gave. Your answer help me
in reorganizing my code. I use a lib that as generic method that why I
put generic in the example. I remove them and change the way I pass
parameters. I didn't solve everything but I think I'm progressing.
If I don't find the answer I'll post a new example.
Philippe
Le 09/02/2014 00:56, Ashish Myles a écrit :
On Sat, Feb 8, 2014 at 6:48 PM, Ashish Myles marci...@gmail.com
mailto:marci...@gmail.com wrote:
On Sat, Feb 8, 2014 at 1:21 PM, Philippe Delrieu
philippe.delr...@free.fr mailto:philippe.delr...@free.fr wrote:
pub trait Base {
fn do_base(self);
}
struct TestBase;
impl Base for TestBase{
fn do_base(self){
println!(ici);
}
}
trait GenerciFn{
fn do_genericT: Base(self, base: T);
}
struct DoGenericFn;
impl GenerciFn for DoGenericFn {
fn do_genericT: Base(self, base: T){
base.do_base();
}
}
struct ToTestStr{
vec_gen: ~[~TestBase],
}
impl ToTestStr{
fn testgencallT: GenerciFn(self, gen: T){
for base in self.vec_gen.iter(){
//let test = base as ~TestBase;
gen.do_generic(**base);
}
}
}
#[main]
fn main() {
let base = TestBase;
let test = ToTestStr {vec_gen: ~[~base],};
let gen = DoGenericFn;
test.testgencall(gen);
It took me a few attempts to get the for loop right, but here you go.
pub trait Base {
fn do_base(self);
}
struct TestBase;
impl Base for TestBase {
fn do_base(self) {
println!(ici);
}
}
trait GenericFn {
fn do_generic(self, base: Base);
}
struct DoGenericFn;
impl GenericFn for DoGenericFn {
fn do_generic(self, base: Base) {
base.do_base();
}
}
struct ToTestStr {
vec_gen: ~[~Base],
}
impl ToTestStr {
fn testgencallT: GenericFn(self, gen: T){
for ref base in self.vec_gen.iter() {
gen.do_generic(**base);
}
}
}
#[main]
fn main() {
let testbase = TestBase;
let test = ToTestStr {vec_gen: ~[~testbase as ~Base],};
let gen = DoGenericFn;
test.testgencall(gen);
}
Also, for a little more runtime polymorphism, you could change
testgencall's declaration to
fn testgencall(self, gen: GenericFn) {
...
}
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