Fix stack overflow caused by displaying errors (#36)

CHANGELOG.md

@@ -1,3 +1,8 @@
+## [1.0.2] - 2020-08-16
+
+### Fixed
+- Fixed stack overflow caused by displaying errors
+
 ## [1.0.1] - 2020-08-16
 
 ### Fixed

src/error.rs

@@ -38,13 +38,7 @@ macro_rules! error {
             $(#[$variantdoc] $variant), +
         }
 
-        impl Error for $name {
-            fn description(&self) -> &str {
-                match *self {
-                    $($name::$variant => $message), +
-                }
-            }
-        }
+        impl Error for $name { }
 
         impl From<$name> for String {
             fn from(error: $name) -> String {
@@ -62,8 +56,10 @@ macro_rules! error {
         }
 
         impl fmt::Display for $name {
-            fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
-                write!(formatter, "{}", self)
+            fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+                match *self {
+                    $($name::$variant => write!(f, $message)), +
+                }
             }
         }
     };

tests/tests.rs

@@ -128,6 +128,10 @@ fn test() {
 
     sonar_test::test(&clang);
 
+    // SourceError _______________________________
+
+    assert_eq!(format!("{}", SourceError::Unknown), "an unknown error occurred");
+
     // Entity ____________________________________
 
     let source = "