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docs: add README as library documentation

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bytedream 2023-02-11 18:51:49 +01:00
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README.md
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@ -4,7 +4,7 @@ Tiny crate to set default values for serde fields via inline attribute declarati
## Overview
This crate is an approach to do what serde-rs/serde#368 purposes.
This crate is an approach to do what [serde-rs/serde#368](https://github.com/serde-rs/serde/issues/368) purposes.
If you want to set default values in plain [`serde`](https://serde.rs/), you have to create a function and link to it with `#[serde(default = "...")`.
This may be good if you need to do calculations to get the default value, but often you just want a simple integer or string to be the default value and have to create a whole function to return a hard-coded value.
```rust

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src/lib.rs
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@ -1,3 +1,5 @@
#![doc = include_str!("../README.md")]
use proc_macro::TokenStream;
use syn::{parse_macro_input, Item};