Nasal: do not print invalid elements for error backtraces.

2013-10-16 23:33:06 +02:00
parent a37a254a68
commit b217019723
1 changed files with 4 additions and 3 deletions
--- a/simgear/nasal/code.c
+++ b/simgear/nasal/code.c
@@ -941,12 +941,13 @@ naRef naContinue(naContext ctx)

 static void logError(naContext ctx)
 {
-    int i;
-    printf("logError\n");
+    int i, stack_depth = naStackDepth(ctx);
    printf("Nasal runtime error: %s\n", naGetError(ctx));
+    if( stack_depth < 1 )
+        return;
    printf("  at %s\n", naStr_data(naGetSourceFile(ctx, 0)));
    printf(", line %d\n", naGetLine(ctx, 0));
-    for(i = 1; i < naStackDepth(ctx); ++i )
+    for(i = 1; i < stack_depth; ++i )
        printf( "  called from: %s, line %d",
                naStr_data(naGetSourceFile(ctx, i)),
                naGetLine(ctx, i));