Fatal errors

- Makes errors fatal, so that a phase is only reached when all previous phases were error-free
- Parsing still recovers and can produce multiple errors
- Evaluation fails fast and can thus produce only a single error (except for parse errors due to an import)
- The single error that could occur during execution is removed for now
- Removes Value::Error variant

1 files changed, 2 insertions, 1 deletions

diff --git a/src/loading/mod.rs b/src/loading/mod.rs
index 64a65580..ab52439d 100644
--- a/src/loading/mod.rs
+++ b/src/loading/mod.rs
@@ -34,7 +34,8 @@ pub trait Loader {
 /// A file id that can be [resolved](Loader::resolve_from) from a path.
 ///
 /// Should be the same for all paths pointing to the same file.
-#[derive(Debug, Copy, Clone, Eq, PartialEq, Hash, Serialize, Deserialize)]
+#[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
+#[derive(Serialize, Deserialize)]
 pub struct FileId(u64);
 
 impl FileId {