Rollup merge of #31186 - gchp:contributing, r=alexcrichton

[rust.git] / src / librustc / middle / cstore.rs

diff --git a/src/librustc/middle/cstore.rs b/src/librustc/middle/cstore.rs
index 27745a85935abf00d8c6668ca8da7b61754c81b3..973fd65beb3d88031936d271563ede90c60465e4 100644 (file)
--- a/src/librustc/middle/cstore.rs
+++ b/src/librustc/middle/cstore.rs
@@ -267,24 +267,28 @@ pub fn visit_ids<O: IdVisitingOperation>(&self, operation: &mut O) {
 
 // FIXME: find a better place for this?
 pub fn validate_crate_name(sess: Option<&Session>, s: &str, sp: Option<Span>) {
-    let say = |s: &str| {
-        match (sp, sess) {
-            (_, None) => panic!("{}", s),
-            (Some(sp), Some(sess)) => sess.span_err(sp, s),
-            (None, Some(sess)) => sess.err(s),
+    let mut err_count = 0;
+    {
+        let mut say = |s: &str| {
+            match (sp, sess) {
+                (_, None) => panic!("{}", s),
+                (Some(sp), Some(sess)) => sess.span_err(sp, s),
+                (None, Some(sess)) => sess.err(s),
+            }
+            err_count += 1;
+        };
+        if s.is_empty() {
+            say("crate name must not be empty");
+        }
+        for c in s.chars() {
+            if c.is_alphanumeric() { continue }
+            if c == '_'  { continue }
+            say(&format!("invalid character `{}` in crate name: `{}`", c, s));
         }
-    };
-    if s.is_empty() {
-        say("crate name must not be empty");
-    }
-    for c in s.chars() {
-        if c.is_alphanumeric() { continue }
-        if c == '_'  { continue }
-        say(&format!("invalid character `{}` in crate name: `{}`", c, s));
     }
-    match sess {
-        Some(sess) => sess.abort_if_errors(),
-        None => {}
+
+    if err_count > 0 {
+        sess.unwrap().abort_if_errors();
     }
 }