Add error codes

src/librustc_resolve/build_reduced_graph.rs

@@ -208,10 +208,10 @@ impl<'a, 'b:'a, 'tcx:'b> GraphBuilder<'a, 'b, 'tcx> {
                     // Return an error here by looking up the namespace that
                     // had the duplicate.
                     let ns = ns.unwrap();
-                    self.resolve_error(sp,
-                        &format!("duplicate definition of {} `{}`",
-                             namespace_error_to_string(duplicate_type),
-                             token::get_name(name)));
+                    resolve_err!(self, sp, E0428,
+                                 "duplicate definition of {} `{}`",
+                                 namespace_error_to_string(duplicate_type),
+                                 token::get_name(name));
                     {
                         let r = child.span_for_namespace(ns);
                         if let Some(sp) = r {
@@ -304,8 +304,9 @@ impl<'a, 'b:'a, 'tcx:'b> GraphBuilder<'a, 'b, 'tcx> {
                             full_path.segments.last().unwrap().identifier.name;
                         if &token::get_name(source_name)[..] == "mod" ||
                            &token::get_name(source_name)[..] == "self" {
-                            self.resolve_error(view_path.span,
-                                "`self` imports are only allowed within a { } list");
+                            resolve_err!(self, view_path.span, E0429,
+                                         "{}",
+                                         "`self` imports are only allowed within a { } list");
                         }
 
                         let subclass = SingleImport(binding.name,
@@ -325,8 +326,9 @@ impl<'a, 'b:'a, 'tcx:'b> GraphBuilder<'a, 'b, 'tcx> {
                             _ => None
                         }).collect::<Vec<Span>>();
                         if mod_spans.len() > 1 {
-                            self.resolve_error(mod_spans[0],
-                                "`self` import can only appear once in the list");
+                            resolve_err!(self, mod_spans[0], E0430,
+                                         "{}",
+                                         "`self` import can only appear once in the list");
                             for other_span in mod_spans.iter().skip(1) {
                                 self.session.span_note(*other_span,
                                     "another `self` import appears here");
@@ -341,7 +343,8 @@ impl<'a, 'b:'a, 'tcx:'b> GraphBuilder<'a, 'b, 'tcx> {
                                     let name = match module_path.last() {
                                         Some(name) => *name,
                                         None => {
-                                            self.resolve_error(source_item.span,
+                                            resolve_err!(self, source_item.span, E0431,
+                                                "{}",
                                                 "`self` import can only appear in an import list \
                                                  with a non-empty prefix");
                                             continue;

src/librustc_resolve/diagnostics.rs

@@ -209,5 +209,45 @@ register_diagnostics! {
     E0257,
     E0258,
     E0364, // item is private
-    E0365  // item is private
+    E0365, // item is private
+    E0397, // failed to resolve
+    E0398, // unresolved import
+    E0399, // can't capture dynamic environment in a fn item
+    E0400, // attempt to use a non-constant value in a constant
+    E0401, // can't use type parameters from outer function
+    E0402, // cannot use an outer type parameter in this context
+    E0403, // the name `{}` is already used
+    E0404, // is not a trait
+    E0405, // use of undeclared trait name
+    E0406, // undeclared associated type
+    E0407, // method is not a member of trait
+    E0408, // variable from pattern #1 is not bound in pattern #
+    E0409, // variable is bound with different mode in pattern # than in
+           // pattern #1
+    E0410, // variable from pattern is not bound in pattern 1
+    E0411, // use of `Self` outside of an impl or trait
+    E0412, // use of undeclared
+    E0413, // declaration of shadows an enum variant or unit-like struct in
+           // scope
+    E0414, // only irrefutable patterns allowed here
+    E0415, // identifier is bound more than once in this parameter list
+    E0416, // identifier is bound more than once in the same pattern
+    E0417, // static variables cannot be referenced in a pattern, use a
+           // `const` instead
+    E0418, // is not an enum variant, struct or const
+    E0419, // unresolved enum variant, struct or const
+    E0420, // is not an associated const
+    E0421, // unresolved associated const
+    E0422, // does not name a structure
+    E0423, // is a struct variant name, but this expression uses it like a
+           // function name
+    E0424, // `self` is not available in a static method.
+    E0425, // unresolved name
+    E0426, // use of undeclared label
+    E0427, // cannot use `ref` binding mode with ...
+    E0428, // duplicate definition of ...
+    E0429, // `self` imports are only allowed within a { } list
+    E0430, // `self` import can only appear once in the list
+    E0431  // `self` import can only appear in an import list with a non-empty
+           // prefix
 }