diff options
Diffstat (limited to 'generic/tclCompCmds.c')
| -rw-r--r-- | generic/tclCompCmds.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/generic/tclCompCmds.c b/generic/tclCompCmds.c index c774a5e..323aa87 100644 --- a/generic/tclCompCmds.c +++ b/generic/tclCompCmds.c @@ -532,7 +532,8 @@ TclCompileCatchCmd( Tcl_Token *cmdTokenPtr, *resultNameTokenPtr, *optsNameTokenPtr; int resultIndex, optsIndex, range, dropScript = 0; DefineLineInformation; /* TIP #280 */ - + int depth = TclGetStackDepth(envPtr); + /* * If syntax does not match what we expect for [catch], do not compile. * Let runtime checks determine if syntax has changed. @@ -611,11 +612,13 @@ TclCompileCatchCmd( } ExceptionRangeEnds(envPtr, range); + /* * Emit the "no errors" epilogue: push "0" (TCL_OK) as the catch result, * and jump around the "error case" code. */ + TclCheckStackDepth(depth+1, envPtr); PushStringLiteral(envPtr, "0"); TclEmitForwardJump(envPtr, TCL_UNCONDITIONAL_JUMP, &jumpFixup); @@ -624,12 +627,14 @@ TclCompileCatchCmd( * return code. */ - TclAdjustStackDepth(-2 + dropScript, envPtr); ExceptionRangeTarget(envPtr, range, catchOffset); + TclSetStackDepth(depth + dropScript, envPtr); + if (dropScript) { TclEmitOpcode( INST_POP, envPtr); } + /* Stack at this point is empty */ TclEmitOpcode( INST_PUSH_RESULT, envPtr); TclEmitOpcode( INST_PUSH_RETURN_CODE, envPtr); @@ -678,6 +683,7 @@ TclCompileCatchCmd( } TclEmitOpcode( INST_POP, envPtr); + TclCheckStackDepth(depth+1, envPtr); return TCL_OK; } |