Improve stack trace handling

*: Get rid of JIM_ERR_ADDSTACK and use interp->addStackTrace instead
*: 'return -code error' doesn't add a stack frame
*: Rename _file_copy to {file copy} for better error messages
*: Use 'return -code' to prevent excessive levels in the stack trace
Also rename info_nameofexecutable to {info nameofexecutable}

1 files changed, 2 insertions, 1 deletions

diff --git a/jim.h b/jim.h
index 17851fb..7b91cd2 100644
--- a/jim.h
+++ b/jim.h
@@ -134,7 +134,7 @@ extern "C" {
 #define JIM_EXIT 6
 /* The following are internal codes and should never been seen/used */
 #define JIM_EVAL 7
-#define JIM_ERR_ADDSTACK 8
+
 #define JIM_MAX_NESTING_DEPTH 10000 /* default max nesting depth */
 
 /* Some function get an integer argument with flags to change
@@ -483,6 +483,7 @@ typedef struct Jim_Interp {
     Jim_Obj *result; /* object returned by the last command called. */
     int errorLine; /* Error line where an error occurred. */
     char *errorFileName; /* Error file where an error occurred. */
+    int addStackTrace; /* > 0 If a level should be added to the stack trace */
     int numLevels; /* Number of current nested calls. */
     int maxNestingDepth; /* Used for infinite loop detection. */
     int returnCode; /* Completion code to return on JIM_RETURN. */