forgot the no_std attr

src/environ.rs

@@ -1,8 +1,10 @@
+use alloc::string::String;
+
+use crate::alloc::string::ToString;
 use crate::parse_list_of_floats;
 use crate::Expr;
 use crate::HashMap;
 use crate::RispError;
-
 macro_rules! ensure_tonicity {
     ($check_fn:expr) => {{
         |args: &[Expr]| -> Result<Expr, RispError> {

src/evaluate.rs

@@ -1,10 +1,15 @@
-use crate::lib::environ::env_get;
+use alloc::format;
-use crate::lib::Environ;
+use alloc::string::String;
-use crate::lib::Expr;
+use alloc::string::ToString;
-use crate::lib::HashMap;
+use alloc::vec::Vec;
-use crate::lib::RLambda;
+
-use crate::lib::Rc;
+use crate::environ::env_get;
-use crate::lib::RispError;
+use crate::Environ;
+use crate::Expr;
+use crate::HashMap;
+use crate::RLambda;
+use crate::Rc;
+use crate::RispError;
 
 pub fn eval(exp: &Expr, env: &mut Environ) -> Result<Expr, RispError> {
     match exp {

src/lib.rs

@@ -1,12 +1,23 @@
+#![feature(slice_take)]
+#![allow(special_module_name)]
+#![feature(build_hasher_default_const_new)]
+#![no_std]
 use core::fmt;
 
 use core::num::ParseFloatError;
 // use std::hash::DefaultHasher;
 
+use alloc::fmt::format;
+use alloc::rc::Rc;
+use alloc::string::String;
+use alloc::string::ToString;
+use alloc::vec::Vec;
 pub use hashbrown::hash_map::HashMap;
-
+pub extern crate alloc;
-pub use std::io::Write;
+use alloc::format;
-pub use std::rc::Rc;
+use alloc::vec;
+// pub use alloc::;
+// pub use core::rc::Rc;
 
 mod environ;
 pub use environ::default_env;

src/parser.rs

@@ -1,3 +1,7 @@
+use alloc::string::String;
+use alloc::string::ToString;
+use alloc::vec::Vec;
+
 use crate::evaluate::eval;
 use crate::read_seq;
 use crate::Environ;