Completed docs, added icon

src/stl/cpsio/io.rs

@@ -10,7 +10,9 @@ use crate::utils::unwrap_or;
 /// An IO command to be handled by the host application.
 #[derive(Clone, Debug)]
 pub enum IO {
+  /// Print a string to standard output and resume execution
   Print(String, ExprInst),
+  /// Read a line from standard input and pass it to the calback
   Readline(ExprInst),
 }
 atomic_inert!(IO);

src/stl/mk_stl.rs

@@ -6,6 +6,8 @@ use super::str::str;
 use crate::interner::Interner;
 use crate::pipeline::ConstTree;
 
+/// Build the standard library used by the interpreter by combining the other
+/// libraries
 pub fn mk_stl(i: &Interner) -> ConstTree {
   cpsio(i) + conv(i) + bool(i) + str(i) + num(i)
 }

src/stl/mod.rs

@@ -1,3 +1,4 @@
+//! Constants exposed to usercode by the interpreter
 mod assertion_error;
 mod bool;
 mod conv;