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//! This module contains structs related to HTTP requests, notably the Request type itself as well
//! as a builder to create requests. Typically you’ll import the http::Request type rather than
//! reaching into this module itself.
//!
use crate::component::couple::Couple;
use crate::task::InnerTask;
use crate::task::MetaTask;
use crate::{
component::{body::Body, info::Info},
plugin::deser::*,
};
use bytes::Buf;
use http::{
header::{HeaderMap, HeaderName, HeaderValue},
Extensions, Method, Uri, Version,
};
use serde::{Deserialize, Serialize};
use std::convert::TryFrom;
use std::fmt;
/// An Wrapper of [http::Request]
///
/// An HTTP request consists of a head and a potentially optional body. The body component is
/// generic, enabling arbitrary types to represent the HTTP body. For example, the body could be
/// Vec<u8>, a Stream of byte chunks, or a value that has been deserialized.
/// Generally, `Affix` and `Task` roughly add up to a `Request`,
#[derive(Serialize, Default, fmt::Debug, Deserialize)]
pub struct Request {
pub inner: InnerRequest,
pub body: Body,
pub metar: MetaRequest,
}
/// An Wrapper of [http::request::Parts]
///
/// Component parts of an HTTP `Request`
///
/// The HTTP request head consists of a method, uri, version, and a set of
/// header fields.
#[derive(Deserialize, Default, fmt::Debug, Serialize)]
pub struct InnerRequest {
#[serde(with = "serde_uri")]
pub uri: Uri,
/// request's vesoin
#[serde(with = "serde_version")]
pub version: Version,
#[serde(with = "serde_method")]
pub method: Method,
/// additional headers if necessary
#[serde(with = "serde_headermap")]
pub headers: HeaderMap<HeaderValue>,
/// additional arguments for extensive application
#[serde(skip)]
pub extensions: Exts,
}
/// An Wrapper of [http::Extensions]
///
/// A type map of protocol extensions.
///
/// Extensions` can be used by `Request` and `Response` to store
/// extra data derived from the underlying protocol.
#[derive(fmt::Debug, Default)]
pub struct Exts(
pub(crate) Extensions,
pub(crate) Extensions,
pub Extensions,
pub Extensions,
);
impl Exts {
pub fn as_mut(&mut self, index: usize) -> &mut Extensions {
match index {
0 | 1 => unreachable!("cannot mutate the extension data for Safety!"),
2 => &mut self.2,
3 => &mut self.3,
_ => unreachable!("out of range, no more than 3"),
}
}
pub fn as_ref(&self, index: usize) -> &Extensions {
match index {
0 => &self.0,
1 => &self.1,
2 => &self.2,
3 => &self.3,
_ => unreachable!("out of range, no more than 3"),
}
}
}
/// Meta Data of the Request
///
/// `MetaRequest` can be used to carry infomation about the worlflow and beyond
#[derive(Deserialize, Serialize)]
pub struct MetaRequest {
/// identifier of the entity
pub info: Info,
/// parsing the `Response` when it's done
#[serde(serialize_with = "serde_fn::serfn")]
#[serde(deserialize_with = "serde_fn::defn")]
pub(crate) parser: *const (),
/// parsing the `Response` when it failed
#[serde(serialize_with = "serde_fn::serfn_op")]
#[serde(deserialize_with = "serde_fn::defn_op")]
pub(crate) err_parser: Option<*const ()>,
/// convert the `Body`s from `Task` and `Affix` to make a new `Body`
#[serde(serialize_with = "serde_fn::serfn_op")]
#[serde(deserialize_with = "serde_fn::defn_op")]
pub body_fn: Option<*const ()>,
/// additional arguments for extensive application
#[serde(skip)]
pub exts: Exts,
}
// Safety: since *const () is a static function pointer(a usize that indicating hardware address)
// which is `Copy` so it owns the data, and no one else has it, the data can be safely transfered
// to another thread
unsafe impl Send for MetaRequest {}
unsafe impl Sync for MetaRequest {}
impl From<MetaTask> for MetaRequest {
fn from(mut m: MetaTask) -> Self {
m.info.used += 1;
Self {
info: m.info,
parser: m.parser,
err_parser: m.err_parser,
body_fn: None,
exts: Exts(
m.exts,
Extensions::new(),
Extensions::new(),
Extensions::new(),
),
}
}
}
impl From<InnerTask> for InnerRequest {
fn from(task: InnerTask) -> Self {
Self {
uri: task.uri,
headers: task.headers,
method: task.method,
version: task.version,
extensions: Exts(
task.extensions,
Extensions::new(),
Extensions::new(),
Extensions::new(),
),
}
}
}
impl Default for MetaRequest {
fn default() -> Self {
Self {
info: Info::default(),
parser: 0 as *const (),
body_fn: None,
err_parser: None,
exts: Exts::default(),
}
}
}
impl fmt::Debug for MetaRequest {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
let mut parser = "Unknow";
let mut err_parser = None;
if let Some((n, _)) = serde_fn::query(None, Some(self.parser)) {
parser = n;
}
if self.err_parser.is_some() {
if let Some((n, _)) = serde_fn::query(None, self.err_parser) {
err_parser = Some(n);
}
}
f.debug_struct("MetaRequest")
.field("info", &self.info)
.field("parser", &parser)
.field("err_parser", &err_parser)
.field("exts", &self.exts)
.finish()
}
}
impl Request {
/// Create an instance of `RequestBuilder` that used to build a `Request`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = Request::default();
/// .body(());
/// ```
pub fn builder() -> RequestBuilder {
RequestBuilder {
inner: InnerRequest::default(),
meta: MetaRequest::default(),
}
}
// /// get shared reference to header of `RequestBuilder`
// ///
// /// # Examples
// ///
// /// ```rust
// /// # use dyer::request::*;
// /// let request = Request::default();
// /// assert!(request.task().is_none());
// /// ```
// pub fn task(&self) -> &Task {
// &self.inner.task
// }
// /// get mutable reference to header of `RequestBuilder`
// ///
// /// # Examples
// ///
// /// ```rust
// /// # use dyer::request::*;
// /// let request = Request::default();
// /// request.task_mut().unwrap().body = 3;
// /// assert_eq!(request.task().unwrap().body, 3);
// /// ```
// pub fn task_mut(&mut self) -> &mut Task {
// self.inner.task
// }
// /// get shared reference to affix of `RequestBuilder`
// ///
// /// # Examples
// ///
// /// ```rust
// /// # use dyer::request::*;
// /// let request = Request::default();
// /// assert!(request.affix().is_none());
// /// ```
// pub fn affix(&self) -> Option<&Affix> {
// if self.inner.affix.is_none() {
// return None;
// }
// self.inner.affix.as_ref()
// }
// /// get mutable reference to affix of `RequestBuilder`
// ///
// /// # Examples
// ///
// /// ```rust
// /// # use dyer::request::*;
// /// let request = Request::default();
// /// request.affix_mut().body = Some(3);
// /// assert_eq!(request.affix().body, Some(3));
// /// ```
// pub fn affix_mut(&mut self) -> Option<&mut Affix> {
// if self.inner.affix.is_none() {
// return None;
// }
// self.inner.affix.as_mut()
// }
/// get shared reference to body of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = Request::default();
/// assert!(request.body().is_none());
/// ```
pub fn body(&self) -> &Body {
&self.body
}
/// get mutable reference to body of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = Request::default();
/// request.body_mut() = 3;
/// assert!(request.body_mut().is_none());
/// ```
pub fn body_mut(&mut self) -> &mut Body {
&mut self.body
}
/// get shared reference to extensions of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// # use http::*;
/// struct S {}
/// let request = Request::default();
/// .body(());
/// let s = S {};
/// request.extensions_mut.insert(s);
/// assert_eq!(request.extensions().get::<S>(), &s);
/// ```
pub fn extensions(&self) -> &Extensions {
&self.inner.extensions.2
}
/// get mutable reference to extensions of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// # use http::*;
/// let request = Request::default();
/// .body(());
/// request.extensions_mut().insert(vec![1,2,3]);
/// assert_eq!(request.extensions().get::<Vec<_>>(), &vec![1,2,3]);
/// ```
pub fn extensions_mut(&mut self) -> &mut Extensions {
&mut self.inner.extensions.2
}
/// get shared reference to exts of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// # use http::*;
/// struct S {}
/// let request = Request::default();
/// .body(());
/// let s = S {};
/// request.exts_mut.insert(s);
/// assert_eq!(request.exts().get::<S>(), &s);
/// ```
pub fn exts(&self) -> &Extensions {
&self.metar.exts.2
}
/// get mutable reference to exts of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// # use http::*;
/// let request = Request::default();
/// .body(());
/// request.exts_mut().insert(vec![1,2,3]);
/// assert_eq!(request.exts().get::<Vec<_>>(), &vec![1,2,3]);
/// ```
pub fn exts_mut(&mut self) -> &mut Extensions {
&mut self.metar.exts.2
}
/// get shared reference to body_fn of `Task`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// # fn body_fn(t: T, p: P) -> Body { todo!() }
/// let reqeust = Request::default();
/// .body_fn(body_fn)
/// .body(());
/// assert_eq!(*reqeust.body_fn(), body_fn);
/// ```
pub fn body_fn(&self) -> Option<fn(Body) -> Body> {
if self.metar.body_fn.is_none() {
return None;
}
let f = unsafe {
std::mem::transmute::<*const (), fn(Body) -> Body>(self.metar.body_fn.unwrap())
};
Some(f)
}
/// set the body_fn of `Request`,
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// # use http::*;
/// # fn body_fn(_: Body) -> Body { todo!() }
/// let task = Request::default();
/// .as_mut()
/// .body_fn_mut(body_fn);
/// assert_eq!(*Request.body_fn(), body_fn);
/// ```
pub fn body_fn_mut(&mut self, body_fn: fn(Body) -> Body) {
let body_fn = body_fn as *const ();
self.metar.body_fn = Some(body_fn);
}
/// get shared reference to info of `Request`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// let request = request::default();
/// assert_eq!(request.info().used, 0);
/// ```
pub fn info(&self) -> &Info {
&self.metar.info
}
/// get mutable reference to info of `Task`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// let request = request::default();
/// task.info_mut().unique = false;
/// assert_eq!(*task.info_ref().unique, false);
/// ```
pub fn info_mut(&mut self) -> &mut Info {
&mut self.metar.info
}
/// Consume the request and obtain the body
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = request::default();
/// assert!(request.into_body().is_empty());
/// ```
pub fn into_body(self) -> Body {
self.body
}
/// Convert the body of the `request` with function
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = request::default();
/// let new= request.map(|v| v + 1 );
/// assert_eq!(new.body, vec![2,3,4]);
/// ```
pub fn map<F>(self, f: F) -> Request
where
F: FnOnce(Body) -> Body,
{
Request {
body: f(self.body),
metar: self.metar,
inner: self.inner,
}
}
/// Create new `Request` directly with body, inner data
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = request::default();
/// let ( mut inner, body, meta ) = request.into_parts();
/// let _ = request::from_parts(inner, body, meta);
/// ```
pub fn from_parts(inner: InnerRequest, body: Body, metar: MetaRequest) -> Self {
Self { inner, body, metar }
}
/// split `request` into body, inner data
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = request::default();
/// let (_inner, _body, _meta ) = request.into_parts();
/// ```
pub fn into_parts(self) -> (InnerRequest, Body, MetaRequest) {
(self.inner, self.body, self.metar)
}
/// Create new `Request` directly with Task and Affix(Optional)
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = request::default();
/// let ( mut inner, body, meta ) = request.into_parts();
/// let _ = request::from_parts(inner, body, meta);
/// ```
pub fn from_couple(
couple: &Couple,
f: Option<&Box<dyn for<'c, 'd> Fn(&'c Body, Option<&'d Body>) -> Body + Send>>,
) -> Self {
match couple.affix {
Some(ref affix) => {
let item = Some(&affix.body);
let body = match f {
Some(ff) => ff(&couple.task.body, item),
None => Body::get_merged(&couple.task.body, item),
};
let inner = InnerRequest {
uri: couple.task.inner.uri.clone(),
method: couple.task.inner.method.clone(),
version: couple.task.inner.version.clone(),
headers: couple.task.inner.headers.clone(),
extensions: unsafe {
Exts(
std::ptr::read(&couple.task.inner.extensions),
std::ptr::read(&affix.inner.extensions),
Extensions::new(),
Extensions::new(),
)
},
};
let mut info = couple.task.metat.info.clone();
info.able = f64::max(info.able, affix.metap.info.able);
info.id = couple.id;
let metar = MetaRequest {
info: info,
parser: couple.task.metat.parser.clone(),
err_parser: couple.task.metat.err_parser.clone(),
body_fn: None,
exts: unsafe {
Exts(
std::ptr::read(&couple.task.metat.exts),
std::ptr::read(&affix.metap.exts),
Extensions::new(),
Extensions::new(),
)
},
};
Self { inner, body, metar }
}
None => {
let body = match f {
// concat the body with the function
Some(ff) => ff(&couple.task.body, None),
// concat the body directly, the layout:
// - task body + affix body
None => Body::get_merged(&couple.task.body, None),
};
let inner = InnerRequest {
uri: couple.task.inner.uri.clone(),
method: couple.task.inner.method.clone(),
version: couple.task.inner.version,
headers: couple.task.inner.headers.clone(),
extensions: Exts(
unsafe { std::ptr::read(&couple.task.inner.extensions) },
Extensions::new(),
Extensions::new(),
Extensions::new(),
),
};
let mut info = couple.task.metat.info.clone();
info.id = couple.id;
let metar = MetaRequest {
info: info,
parser: couple.task.metat.parser,
err_parser: couple.task.metat.err_parser,
body_fn: None,
exts: Exts(
unsafe { std::ptr::read(&couple.task.metat.exts) },
Extensions::new(),
Extensions::new(),
Extensions::new(),
),
};
Self { inner, body, metar }
}
}
}
}
impl
Into<(
MetaRequest,
hyper::Request<hyper::Body>,
Extensions,
Extensions,
)> for Request
{
/// transform a `Request` into `hyper::Request`
fn into(
mut self,
) -> (
MetaRequest,
hyper::Request<hyper::Body>,
Extensions,
Extensions,
) {
let (ext_t, ext_p) = (self.inner.extensions.0, self.inner.extensions.1);
let mut r = hyper::Request::builder()
.uri(self.inner.uri)
.method(self.inner.method)
//.header(self.inner.headers)
.version(self.inner.version)
.extension(self.inner.extensions.2)
.body(hyper::body::Body::from(self.body.to_bytes()))
.unwrap();
*r.headers_mut() = self.inner.headers;
(self.metar, r, ext_t, ext_p)
}
}
/// An Wrapper of [http::request::Builder]
///
/// An HTTP request builder
///
/// This type can be used to construct an instance or `Request`
/// through a builder-like pattern.
pub struct RequestBuilder {
inner: InnerRequest,
meta: MetaRequest,
}
impl RequestBuilder {
/// Create an instance of `RequestBuilder` that used to build a `Request`
/// Same as `Request::builder()`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let request = RequestBuilder::new()
/// .body(());
/// ```
pub fn new() -> Self {
Self {
inner: InnerRequest::default(),
meta: MetaRequest::default(),
}
}
/// set the uri of `Task`, if not called, the default value is "/"
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let task = TaskBuilder::new()
/// .uri("https://example.com")
/// .parser(parser_fn)
/// .body(());
/// ```
pub fn uri<S>(mut self, uri: S) -> Self
where
Uri: TryFrom<S>,
<Uri as TryFrom<S>>::Error: Into<http::Error>,
{
self.inner.uri = TryFrom::try_from(uri)
.map_err(Into::into)
.expect("Set Uri Failed");
self
}
/// get shared reference to uri of `TaskBuilder`
/// Same as `Task::uri(...)`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let uri = "https://example.com";
/// let task = TaskBuilder::new()
/// .uri(uri)
/// .parser(parser_fn)
/// .body(());
/// assert_eq!(task.uri_ref(), uri);
/// ```
pub fn uri_ref(&self) -> &Uri {
&self.inner.uri
}
/// set the method of `Task`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # use http::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let method = Method::POST;
/// let task = TaskBuilder::new()
/// .method(method)
/// .parser(parser_fn)
/// .body(());
/// assert_eq!(task.method_ref(), method);
/// ```
pub fn method<S>(mut self, method: S) -> Self
where
Method: TryFrom<S>,
<Method as TryFrom<S>>::Error: Into<http::Error>,
{
self.inner.method = TryFrom::try_from(method)
.map_err(Into::into)
.expect("Set Method Failed");
self
}
/// get shared reference to method of `TaskBuilder`
/// Same as `Task::method(...)`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let method = Method::POST;
/// let task = TaskBuilder::new()
/// .method(method)
/// .parser(parser_fn)
/// .body(());
/// assert_eq!(task.method_ref(), method);
/// ```
pub fn method_ref(&self) -> &Method {
&self.inner.method
}
/// get shared reference to header of `TaskBuilder`
/// Same as `Task::headers(...)`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let task = TaskBuilder::new()
/// .header("accept", "*/*")
/// .parser(parser_fn)
/// .body(());
/// assert_eq!(task.header_ref()["accept"], "*/*");
/// ```
pub fn header_ref(&self) -> &HeaderMap<HeaderValue> {
&self.inner.headers
}
/// get mutable reference to header of `TaskBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let task = TaskBuilder::new()
/// .header("accept", "*/*")
/// .parser(parser_fn)
/// .body(());
/// task.header_mut().insert("accept", "text/html");
/// assert_eq!(task.header_ref()["accept"], "text/html");
/// ```
pub fn header_mut(&mut self) -> &mut HeaderMap<HeaderValue> {
&mut self.inner.headers
}
/// set the headers of `Task`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # use http::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let task = TaskBuilder::new()
/// .header("accept", "*/*")
/// .parser(parser_fn)
/// .body(());
/// assert_eq!(task.header_ref()["accept"], "*/*");
/// ```
pub fn header<K, V>(mut self, key: K, value: V) -> Self
where
HeaderName: TryFrom<K>,
<HeaderName as TryFrom<K>>::Error: Into<http::Error>,
HeaderValue: TryFrom<V>,
<HeaderValue as TryFrom<V>>::Error: Into<http::Error>,
{
let k: HeaderName = TryFrom::try_from(key)
.map_err(Into::into)
.expect("Invalid Key When Setting Header");
let v: HeaderValue = TryFrom::try_from(value)
.map_err(Into::into)
.expect("Invalid Value When Setting Header");
self.inner.headers.append(k, v);
self
}
/// set the version of `Task`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # use http::*;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let task = TaskBuilder::new()
/// .version(Version::HTTP_10)
/// .parser(parser_fn)
/// .body(());
/// assert_eq!(task.version_ref(), Version::HTTP_10);
/// ```
pub fn version(mut self, version: Version) -> Self {
self.inner.version = version;
self
}
/// get shared reference to version of `TaskBuilder`
/// Same as `Task::version(...)`
///
/// # Examples
///
/// ```rust
/// # use dyer::task::*;
/// # use http::Version;
/// # fn parser_fn(_: Response ) -> Parsed<E,> { todo!() }
/// let version = Version::HTTP_10;
/// let task = TaskBuilder::new()
/// .version(version)
/// .parser(parser_fn)
/// .body(());
/// assert_eq!(task.version_ref(), version);
/// ```
pub fn version_ref(&self) -> &Version {
&self.inner.version
}
/// Take this `RequestBuilder` and combine the body to create a `Request`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// let _ = RequestBuilder::new()
/// .body(());
/// ```
pub fn body<'r, R>(self, body: Body) -> http::Result<Request> {
Ok(Request {
inner: self.inner,
metar: self.meta,
body,
})
}
/// get shared reference to extensions of `RequestBuilder`
/// Same as `Request::extensions(...)`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// # use http::*;
/// struct S {}
/// let request = RequestBuilder::new()
/// .body(());
/// let s = S {};
/// request.extensions_mut.insert(s);
/// assert_eq!(request.extensions_ref().get::<S>(), &s);
/// ```
pub fn extensions_ref(&self) -> &Extensions {
&self.inner.extensions.2
}
/// get mutable reference to extensions of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// # use http::*;
/// let request = RequestBuilder::new()
/// .body(());
/// request.extensions_mut().insert(vec![1,2,3]);
/// assert_eq!(request.extensions_ref().get::<Vec<_>>(), &vec![1,2,3]);
/// ```
pub fn extensions_mut(&mut self) -> &mut Extensions {
&mut self.inner.extensions.2
}
/// set the exts of `Request`
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// let Request = RequestBuilder::new()
/// .extensions(vec![1,2,3])
/// .body(());
/// assert_eq!(Request.extensions_ref(), &vec![1,2,3]);
/// ```
pub fn extensions<S>(mut self, extensions: S) -> Self
where
S: std::any::Any + Send + Sync + 'static,
{
self.inner.extensions.2.insert(extensions);
self
}
/// get shared reference to exts of `RequestBuilder`
/// Same as `Request::exts(...)`
///
/// # Examples
///
/// ```rust
/// # use dyer::request::*;
/// # use http::*;
/// struct S {}
/// let request = RequestBuilder::new()
/// .body(());
/// let s = S {};
/// request.exts_mut.insert(s);
/// assert_eq!(request.exts_ref().get::<S>(), &s);
/// ```
pub fn exts_ref(&self) -> &Extensions {
&self.meta.exts.2
}
/// get mutable reference to exts of `RequestBuilder`
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// # use http::*;
/// let request = RequestBuilder::new()
/// .body(());
/// request.exts_mut().insert(vec![1,2,3]);
/// assert_eq!(request.exts_ref().get::<Vec<_>>(), &vec![1,2,3]);
/// ```
pub fn exts_mut(&mut self) -> &mut Extensions {
&mut self.meta.exts.2
}
/// set the exts of `Request`
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// let Request = RequestBuilder::new()
/// .exts(vec![1,2,3])
/// .body(());
/// assert_eq!(Request.exts_ref(), &vec![1,2,3]);
/// ```
pub fn exts<S>(mut self, exts: S) -> Self
where
S: std::any::Any + Send + Sync + 'static,
{
self.meta.exts.2.insert(exts);
self
}
/// set the body_fn of `Request`,
///
/// # Examples
///
/// ```rust
/// # use dyer::Request::*;
/// # use http::*;
/// # fn body_fn(t: T, p: P) -> Body { todo!() }
/// let task = RequestBuilder::new()
/// .body_fn(body_fn)
/// .body(());
/// assert_eq!(*Request.body_fn_ref(), body_fn);
/// ```
pub fn body_fn(&mut self, body_fn: fn(Body) -> Body) -> &mut Self {
let body_fn = body_fn as *const ();
self.meta.body_fn = Some(body_fn);
self
}
}