diff options
| -rw-r--r-- | generic/tclCompCmdsSZ.c | 2 | ||||
| -rw-r--r-- | tests/tailcall.test | 7 |
2 files changed, 8 insertions, 1 deletions
diff --git a/generic/tclCompCmdsSZ.c b/generic/tclCompCmdsSZ.c index 383abc2..355c741 100644 --- a/generic/tclCompCmdsSZ.c +++ b/generic/tclCompCmdsSZ.c @@ -2618,7 +2618,7 @@ TclCompileTailcallCmd( Tcl_Token *tokenPtr = parsePtr->tokenPtr; int i; - if (parsePtr->numWords < 2 || parsePtr->numWords > 256 + if (parsePtr->numWords < 2 || parsePtr->numWords >= 256 || envPtr->procPtr == NULL) { return TCL_ERROR; } diff --git a/tests/tailcall.test b/tests/tailcall.test index 3704333..35a7268 100644 --- a/tests/tailcall.test +++ b/tests/tailcall.test @@ -708,6 +708,13 @@ test tailcall-14.1-bc {{in a deleted namespace} {byte compiled}} -body { } } -returnCodes 1 -result {namespace "::ns" not found} +test tailcall-bug-784befb0ba {tailcall crash with 254 args} -body { + proc tccrash args {llength $args} + # Must be EXACTLY 254 for crash + proc p {} [list tailcall tccrash {*}[lrepeat 254 x]] + p +} -result 254 + # cleanup ::tcltest::cleanupTests |