Made lyon_extra crate compatible with no_std

crates/extra/Cargo.toml

@@ -1,19 +1,22 @@
 [package]
 name = "lyon_extra"
-version = "1.0.3"
+version = "1.1.0"
 description = "Various optional utilities for the lyon crate."
 authors = ["Nicolas Silva <nical@fastmail.com>"]
 repository = "https://github.com/nical/lyon"
 documentation = "https://docs.rs/lyon_extra/"
 license = "MIT OR Apache-2.0"
 workspace = "../.."
+edition = "2018"
 
 [lib]
 name = "lyon_extra"
 
 [features]
+default = ["std"]
 serialization = ["lyon_path/serialization"]
+std = ["thiserror/std", "lyon_path/std"]
 
 [dependencies]
-lyon_path = { version = "1.0.0", path = "../path" }
-thiserror = "1.0"
+lyon_path = { version = "1.0.0", path = "../path", default-features = false }
+thiserror = { version = "2.0", default-features = false }

crates/extra/src/debugging.rs

@@ -2,6 +2,8 @@ use path::math::Point;
 use path::PathEvent;
 use path::{Path, PathSlice};
 
+use std::{println, vec::Vec, panic};
+
 pub type Polygons = Vec<Vec<Point>>;
 pub type PolygonsRef<'a> = &'a [Vec<Point>];
 
@@ -105,8 +107,6 @@ pub fn find_reduced_test_case<F: Fn(Path) -> bool + panic::UnwindSafe + panic::R
     path
 }
 
-use std::panic;
-
 fn find_reduced_test_case_sp<F>(mut polygons: Polygons, cb: &F) -> Polygons
 where
     F: Fn(Path) -> bool + panic::UnwindSafe + panic::RefUnwindSafe,

crates/extra/src/lib.rs

@@ -2,12 +2,21 @@
 #![deny(bare_trait_objects)]
 #![allow(dead_code)]
 #![allow(unused_variables)]
+#![no_std]
 
 extern crate lyon_path as path;
 
+extern crate alloc;
+
+#[cfg(any(test, feature = "std"))]
+#[macro_use]
+extern crate std;
+
+
 pub use path::geom::euclid;
 pub use path::math;
 
+#[cfg(any(test, feature = "std"))]
 pub mod debugging;
 pub mod parser;
 pub mod rust_logo;

crates/extra/src/parser.rs

@@ -3,10 +3,12 @@ use path::{
     math::{point, vector, Angle, Point},
     traits::PathBuilder,
 };
+use core::{mem};
 
-extern crate thiserror;
+extern crate alloc;
+use alloc::{string::String, vec::Vec};
 
-use self::thiserror::Error;
+use thiserror::Error;
 
 #[non_exhaustive]
 #[derive(Error, Clone, Debug, PartialEq)]
@@ -457,7 +459,7 @@ impl PathParser {
         match self.float_buffer.parse::<f32>() {
             Ok(val) => Ok(val),
             Err(_) => Err(ParseError::Number {
-                src: std::mem::take(&mut self.float_buffer),
+                src: mem::take(&mut self.float_buffer),
                 line,
                 column,
             }),