Address warnings, update edition and deps, etc.

Cargo.toml

@@ -1,8 +1,8 @@
 [package]
 name = "qr"
 version = "0.1.0"
-authors = ["Artem Varaksa <aymfst@gmail.com>"]
-edition = "2018"
+authors = ["Artem Varaksa <artvaraksa@gmail.com>"]
+edition = "2021"
 
 [lib]
 crate-type = ["cdylib", "rlib"]
@@ -11,24 +11,24 @@ crate-type = ["cdylib", "rlib"]
 default = ["console_error_panic_hook"]
 
 [dependencies]
-qrcode = "0.11.0"
-url = "2.1"
-cfg-if = "0.1.2"
+qrcode = "0.14"
+url = "2.5"
+cfg-if = "1.0"
 wasm-bindgen = "0.2"
 
 # The `console_error_panic_hook` crate provides better debugging of panics by
 # logging them with `console.error`. This is great for development, but requires
 # all the `std::fmt` and `std::panicking` infrastructure, so isn't great for
 # code size when deploying.
-console_error_panic_hook = { version = "0.1.1", optional = true }
+console_error_panic_hook = { version = "0.1", optional = true }
 
 # `wee_alloc` is a tiny allocator for wasm that is only ~1K in code size
 # compared to the default allocator's ~10K. It is slower than the default
 # allocator, however.
 wee_alloc = { version = "0.4.2", optional = true }
 
 [dev-dependencies]
-wasm-bindgen-test = "0.2"
+wasm-bindgen-test = "0.3"
 
 [profile.release]
 # Tell `rustc` to optimize for small code size.

src/lib.rs

@@ -33,7 +33,7 @@ fn parse_config(segments: &mut Split<char>) -> Config {
     const DEFAULT_QUIET_ZONE: bool = true;
 
     let map = segments.fold(HashMap::new(), |mut acc, e| {
-        let pair = e.split("=").collect::<Vec<_>>();
+        let pair = e.split('=').collect::<Vec<_>>();
 
         if pair.len() < 2 {
             return acc;
@@ -96,7 +96,7 @@ pub fn handle_request(url: String) -> Result<String, JsValue> {
 
     let text = match url.query() {
         Some(text) => text.to_owned(),
-        None => url.clone().into_string(),
+        None => url.clone().into(),
     };
 
     let mut segments = url
@@ -123,5 +123,5 @@ pub fn handle_request(url: String) -> Result<String, JsValue> {
         image_builder = image_builder.max_dimensions(size, size);
     }
 
-    Ok(format!("{}", image_builder.build()))
+    Ok(image_builder.build().to_string())
 }