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use mopa crate to implement downcastng

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This commit is contained in:
Adrian Malacoda 2017-03-12 18:22:36 -05:00
parent ff48a0501f
commit 552287bc94
6 changed files with 17 additions and 6 deletions
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1
Cargo.toml
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@ -17,3 +17,4 @@ select = "0.3.0"
hyper = "0.9.18" hyper = "0.9.18"
serde_json = "0.9" serde_json = "0.9"
retry = { git = "https://github.com/jimmycuadra/retry", rev = "3fa812e650d64ede61ea243fb83ef1a222ff0f84" } retry = { git = "https://github.com/jimmycuadra/retry", rev = "3fa812e650d64ede61ea243fb83ef1a222ff0f84" }
mopa = "0.2.2"

8
src/lib.rs
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@ -3,9 +3,13 @@ extern crate select;
extern crate serde_json; extern crate serde_json;
extern crate retry; extern crate retry;
#[macro_use]
extern crate mopa;
pub mod searchers; pub mod searchers;
use std::any::Any; //use std::any::Any;
use mopa::Any;
pub trait Link: Any { pub trait Link: Any {
fn label (&self) -> &str; fn label (&self) -> &str;
@ -13,6 +17,8 @@ pub trait Link: Any {
fn as_any(&self) -> &Any; fn as_any(&self) -> &Any;
} }
mopafy!(Link);
impl Link for Box<Link + 'static> { impl Link for Box<Link + 'static> {
fn label (&self) -> &str { fn label (&self) -> &str {
(**self).label() (**self).label()

5
src/main.rs
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@ -21,11 +21,12 @@ fn main () {
searchers.add_searcher("gp", Box::new(MediawikiSearcher::new(String::from("https://gammapedia.monarch-pass.net/wiki/")))); searchers.add_searcher("gp", Box::new(MediawikiSearcher::new(String::from("https://gammapedia.monarch-pass.net/wiki/"))));
searchers.add_searcher("ip", Box::new(MediawikiSearcher::new(String::from("http://infinitypedia.org/wiki/")))); searchers.add_searcher("ip", Box::new(MediawikiSearcher::new(String::from("http://infinitypedia.org/wiki/"))));
searchers.add_searcher("wp", Box::new(MediawikiSearcher::new(String::from("https://en.wikipedia.org/wiki/")))); searchers.add_searcher("wp", Box::new(MediawikiSearcher::new(String::from("https://en.wikipedia.org/wiki/"))));
match searchers.exact_search(&term) { match searchers.exact_search(&term) {
Some(item) => { Some(item) => {
if let Some(card) = item.as_any().downcast_ref::<MtgCard>() { if let Some(card) = item.downcast_ref::<MtgCard>() {
println!("{:?}", card); println!("{:?}", card);
} else if let Some(card) = item.as_any().downcast_ref::<YugiohCard>() { } else if let Some(card) = item.downcast_ref::<YugiohCard>() {
println!("{:?}", card); println!("{:?}", card);
} else { } else {
println!("{}: {}", item.label(), item.url()); println!("{}: {}", item.label(), item.url());

3
src/searchers/mediawiki.rs
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@ -15,7 +15,8 @@ use retry::delay::Fixed;
use std; use std;
use std::io::Read; use std::io::Read;
use std::any::Any; //use std::any::Any;
use mopa::Any;
const NUM_RETRIES: usize = 10; const NUM_RETRIES: usize = 10;
const RETRY_WAIT_MILLIS: u64 = 500; const RETRY_WAIT_MILLIS: u64 = 500;

3
src/searchers/mtg.rs
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@ -14,7 +14,8 @@ use retry::delay::Fixed;
use std; use std;
use std::io::Read; use std::io::Read;
use std::any::Any; //use std::any::Any;
use mopa::Any;
const NUM_RETRIES: usize = 10; const NUM_RETRIES: usize = 10;
const RETRY_WAIT_MILLIS: u64 = 500; const RETRY_WAIT_MILLIS: u64 = 500;

3
src/searchers/yugioh.rs
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@ -14,7 +14,8 @@ use retry::delay::Fixed;
use std; use std;
use std::io::Read; use std::io::Read;
use std::any::Any; //use std::any::Any;
use mopa::Any;
const NUM_RETRIES: usize = 10; const NUM_RETRIES: usize = 10;
const RETRY_WAIT_MILLIS: u64 = 500; const RETRY_WAIT_MILLIS: u64 = 500;