diff options
Diffstat (limited to 'generic/tclEnsemble.c')
-rw-r--r-- | generic/tclEnsemble.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/generic/tclEnsemble.c b/generic/tclEnsemble.c index 2753876..835c9ad 100644 --- a/generic/tclEnsemble.c +++ b/generic/tclEnsemble.c @@ -3056,6 +3056,9 @@ CompileToCompiledCommand( Tcl_Parse synthetic; Tcl_Token *tokenPtr; int result, i; + int savedNumCmds = envPtr->numCommands; + int savedStackDepth = envPtr->currStackDepth; + unsigned savedCodeNext = envPtr->codeNext - envPtr->codeStart; if (cmdPtr->compileProc == NULL) { return TCL_ERROR; @@ -3110,6 +3113,17 @@ CompileToCompiledCommand( result = cmdPtr->compileProc(interp, &synthetic, cmdPtr, envPtr); /* + * If our target fails to compile, revert the number of commands and the + * pointer to the place to issue the next instruction. [Bug 3600328] + */ + + if (result != TCL_OK) { + envPtr->numCommands = savedNumCmds; + envPtr->currStackDepth = savedStackDepth; + envPtr->codeNext = envPtr->codeStart + savedCodeNext; + } + + /* * Clean up if necessary. */ |