From 5ed55fb31191eb8057a57afcd8316335632c94c8 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 5 Sep 2020 23:12:19 +0100
Subject: [PATCH] debug RawToken better

---
 src/imports.rs |  2 +-
 src/spec.rs    | 10 +++++++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/imports.rs b/src/imports.rs
index d09dd4a6..f38853f8 100644
--- a/src/imports.rs
+++ b/src/imports.rs
@@ -17,7 +17,7 @@ pub use std::iter;
 pub use std::iter::repeat_with;
 pub use std::collections::VecDeque;
 pub use std::num::Wrapping;
-pub use std::cmp;
+pub use std::cmp::{self,min,max};
 pub use std::error::Error;
 pub use std::marker::PhantomData;
 pub use std::ops::{Deref,DerefMut};
diff --git a/src/spec.rs b/src/spec.rs
index f13d6bcb..26943187 100644
--- a/src/spec.rs
+++ b/src/spec.rs
@@ -15,7 +15,7 @@ pub type Coord = isize;
 
 pub type Pos = [Coord; 2];
 
-#[derive(Clone,Debug,Eq,PartialEq,Ord,PartialOrd,Hash,Serialize,Deserialize)]
+#[derive(Clone,Eq,PartialEq,Ord,PartialOrd,Hash,Serialize,Deserialize)]
 #[serde(transparent)]
 pub struct RawToken (pub String);
 
@@ -104,6 +104,14 @@ mod implementation {
   use crate::imports::*;
   type Insn = crate::commands::MgmtGameInstruction;
 
+  impl Debug for RawToken {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+      let s = &self.0;
+      let len = min(5, s.len() / 2);
+      write!(f, "{:?}...", &s[0..len])
+    }
+  }
+
   #[typetag::serde(tag="access")]
   pub trait PlayerAccessSpec : Debug {
     fn token_mgi(&self, _player: PlayerId) -> Option<MgmtGameInstruction> {
-- 
2.30.2