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https://github.com/rwf2/Rocket.git
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d7f6d82fe4
This completes the migration of custom derives to proc-macros, removing the need for the `custom_derive` feature in consumer code. This commit also includes documentation, unit tests, and compile UI tests for each of the derives. Additionally, this commit improves the existing `FromForm` and `FromFormValue` derives. The generated code for `FromForm` now returns an error value indicating the error condition. The `FromFormValue` derive now accepts a `form` attribute on variants for specifying the exact value string to match against. Closes #590. Closes #670.
32 lines
819 B
Rust
32 lines
819 B
Rust
#![feature(plugin, decl_macro)]
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#![plugin(rocket_codegen)]
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#![allow(dead_code)] // This test is only here so that we can ensure it compiles.
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extern crate rocket;
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use rocket::State;
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use rocket::response::{self, Responder};
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struct SomeState;
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pub struct CustomResponder<'r, R> {
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responder: R,
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state: &'r SomeState,
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}
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impl<'r, R: Responder<'r>> Responder<'r> for CustomResponder<'r, R> {
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fn respond_to(self, _: &rocket::Request) -> response::Result<'r> {
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unimplemented!()
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}
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}
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#[get("/unit_state")]
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fn unit_state(state: State<SomeState>) -> CustomResponder<()> {
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CustomResponder { responder: (), state: state.inner() }
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}
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#[get("/string_state")]
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fn string_state(state: State<SomeState>) -> CustomResponder<String> {
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CustomResponder { responder: "".to_string(), state: state.inner() }
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}
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