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Using no_std + alloc ()

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Removed references to `std` and replaced them with references to `core` and `alloc`.
Features `rocket` and `iron` still require `std`.

Co-authored-by: Chris Wong <lambda.fairy@gmail.com>
This commit is contained in:
Benjamin Halsted 2021-07-30 05:05:31 -07:00 • committed by GitHub
parent 6a3d3eca6e
commit 3eb4254ffb
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GPG key ID: 4AEE18F83AFDEB23
4 changed files with 27 additions and 4 deletions
CHANGELOG.md
maud/src
lib.rs
maud_htmlescape
lib.rs
maud_macros/src
lib.rs

3
CHANGELOG.md
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@ -2,6 +2,9 @@
## [Unreleased]
- Support `no_std` + `alloc`.
[#278](https://github.com/lambda-fairy/maud/issues/278)
## [0.22.2] - 2021-01-09
- Don't require `?` suffix for empty attributes. The old syntax is kept for backward compatibility.

18
maud/src/lib.rs
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@ -1,3 +1,5 @@
#![no_std]
//! A macro for writing HTML templates.
//!
//! This documentation only describes the runtime API. For a general
@ -7,7 +9,10 @@
#![doc(html_root_url = "https://docs.rs/maud/0.22.2")]
use std::fmt::{self, Write};
extern crate alloc;
use alloc::string::String;
use core::fmt::{self, Write};
pub use maud_macros::{html, html_debug};
@ -89,8 +94,9 @@ impl<T: fmt::Display + ?Sized> Render for T {
#[doc(hidden)]
pub mod render {
use crate::Render;
use alloc::string::String;
use core::fmt::Write;
use maud_htmlescape::Escaper;
use std::fmt::Write;
pub trait RenderInternal {
fn __maud_render_to(&self, w: &mut String);
@ -167,7 +173,11 @@ pub const DOCTYPE: PreEscaped<&'static str> = PreEscaped("<!DOCTYPE html>");
#[cfg(feature = "iron")]
mod iron_support {
extern crate std;
use crate::PreEscaped;
use alloc::boxed::Box;
use alloc::string::String;
use iron::headers::ContentType;
use iron::modifier::{Modifier, Set};
use iron::modifiers::Header;
@ -191,7 +201,10 @@ mod iron_support {
#[cfg(feature = "rocket")]
mod rocket_support {
extern crate std;
use crate::PreEscaped;
use alloc::string::String;
use rocket::http::{ContentType, Status};
use rocket::request::Request;
use rocket::response::{Responder, Response};
@ -211,6 +224,7 @@ mod rocket_support {
mod actix_support {
use crate::PreEscaped;
use actix_web_dep::{Error, HttpRequest, HttpResponse, Responder};
use alloc::string::String;
use futures_util::future::{ok, Ready};
impl Responder for PreEscaped<String> {

7
maud_htmlescape/lib.rs
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@ -1,3 +1,5 @@
#![cfg_attr(not(test), no_std)]
//! Internal support code used by the [Maud] template engine.
//!
//! You should not need to depend on this crate directly.
@ -6,7 +8,10 @@
#![doc(html_root_url = "https://docs.rs/maud_htmlescape/0.17.0")]
use std::fmt;
extern crate alloc;
use alloc::string::String;
use core::fmt;
/// An adapter that escapes HTML special characters.
///

3
maud_macros/src/lib.rs
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@ -35,8 +35,9 @@ fn expand(input: TokenStream) -> TokenStream {
let markups = parse::parse(input);
let stmts = generate::generate(markups, output_ident.clone());
quote!({
extern crate alloc;
extern crate maud;
let mut #output_ident = ::std::string::String::with_capacity(#size_hint);
let mut #output_ident = alloc::string::String::with_capacity(#size_hint);
#stmts
maud::PreEscaped(#output_ident)
})