Don't print null sources for errors

1 files changed, 4 insertions, 1 deletions

diff --git a/src/main/java/org/shedlang/compiler/cli/ShedCli.java b/src/main/java/org/shedlang/compiler/cli/ShedCli.java
index e4f98607..7f6d88ad 100644
--- a/src/main/java/org/shedlang/compiler/cli/ShedCli.java
+++ b/src/main/java/org/shedlang/compiler/cli/ShedCli.java
@@ -8,6 +8,7 @@ import org.shedlang.compiler.ShedCompiler;
 import org.shedlang.compiler.backends.Backends;
 import org.shedlang.compiler.backends.ShedTarget;
 import org.shedlang.compiler.errors.CompilerError;
+import org.shedlang.compiler.sources.NullSource;
 
 import java.io.IOException;
 import java.nio.file.Path;
@@ -19,7 +20,9 @@ public class ShedCli {
         try {
             compile(args);
         } catch (CompilerError error) {
-            System.err.println(error.source().describe());
+            if (!(error.source() instanceof NullSource)) {
+                System.err.println(error.source().describe());
+            }
             System.err.println(error.getMessage());
             System.exit(2);
         }