diff options
Diffstat (limited to 'generic/tclOOBasic.c')
-rw-r--r-- | generic/tclOOBasic.c | 138 |
1 files changed, 70 insertions, 68 deletions
diff --git a/generic/tclOOBasic.c b/generic/tclOOBasic.c index 329f0a4..5e983fc 100644 --- a/generic/tclOOBasic.c +++ b/generic/tclOOBasic.c @@ -19,6 +19,8 @@ static inline Tcl_Object *AddConstructionFinalizer(Tcl_Interp *interp); static int AfterNRDestructor(ClientData data[], Tcl_Interp *interp, int result); +static int DecrRefsPostClassConstructor(ClientData data[], + Tcl_Interp *interp, int result); static int FinalizeConstruction(ClientData data[], Tcl_Interp *interp, int result); static int FinalizeEval(ClientData data[], @@ -70,6 +72,74 @@ FinalizeConstruction( /* * ---------------------------------------------------------------------- * + * TclOO_Class_Constructor -- + * + * Implementation for oo::class constructor. + * + * ---------------------------------------------------------------------- + */ + +int +TclOO_Class_Constructor( + ClientData clientData, + Tcl_Interp *interp, + Tcl_ObjectContext context, + int objc, + Tcl_Obj *const *objv) +{ + Object *oPtr = (Object *) Tcl_ObjectContextObject(context); + Tcl_Obj *invoke[3]; + + if (objc-1 > Tcl_ObjectContextSkippedArgs(context)) { + Tcl_WrongNumArgs(interp, Tcl_ObjectContextSkippedArgs(context), objv, + "?definitionScript?"); + return TCL_ERROR; + } else if (objc == Tcl_ObjectContextSkippedArgs(context)) { + return TCL_OK; + } + + /* + * Delegate to [oo::define] to do the work. + */ + + invoke[0] = oPtr->fPtr->defineName; + invoke[1] = TclOOObjectName(interp, oPtr); + invoke[2] = objv[objc-1]; + + /* + * Must add references or errors in configuration script will cause + * trouble. + */ + + Tcl_IncrRefCount(invoke[0]); + Tcl_IncrRefCount(invoke[1]); + Tcl_IncrRefCount(invoke[2]); + TclNRAddCallback(interp, DecrRefsPostClassConstructor, + invoke[0], invoke[1], invoke[2], NULL); + + /* + * Tricky point: do not want the extra reported level in the Tcl stack + * trace, so use TCL_EVAL_NOERR. + */ + + return TclNREvalObjv(interp, 3, invoke, TCL_EVAL_NOERR, NULL); +} + +static int +DecrRefsPostClassConstructor( + ClientData data[], + Tcl_Interp *interp, + int result) +{ + TclDecrRefCount((Tcl_Obj *) data[0]); + TclDecrRefCount((Tcl_Obj *) data[1]); + TclDecrRefCount((Tcl_Obj *) data[2]); + return result; +} + +/* + * ---------------------------------------------------------------------- + * * TclOO_Class_Create -- * * Implementation for oo::class->create method. @@ -1141,74 +1211,6 @@ TclOOCopyObjectCmd( } /* - * ---------------------------------------------------------------------- - * - * TclOOUpcatchCmd -- - * - * Implementation of the [oo::UpCatch] command, which is a combination of - * [uplevel 1] and [catch] that makes it easier to write transparent - * error handling in scripts. - * - * ---------------------------------------------------------------------- - */ - -int -TclOOUpcatchCmd( - ClientData ignored, - Tcl_Interp *interp, - int objc, - Tcl_Obj *const objv[]) -{ - return Tcl_NRCallObjProc(interp, TclOONRUpcatch, NULL, objc, objv); -} - -static int -UpcatchCallback( - ClientData data[], - Tcl_Interp *interp, - int result) -{ - Interp *iPtr = (Interp *) interp; - CallFrame *savedFramePtr = data[0]; - Tcl_Obj *resultObj[2]; - int rewind = iPtr->execEnvPtr->rewind; - - iPtr->varFramePtr = savedFramePtr; - if (rewind || Tcl_LimitExceeded(interp)) { - Tcl_AppendObjToErrorInfo(interp, Tcl_ObjPrintf( - "\n (\"UpCatch\" body line %d)", Tcl_GetErrorLine(interp))); - return TCL_ERROR; - } - resultObj[0] = Tcl_GetObjResult(interp); - resultObj[1] = Tcl_GetReturnOptions(interp, result); - Tcl_SetObjResult(interp, Tcl_NewListObj(2, resultObj)); - return TCL_OK; -} - -int -TclOONRUpcatch( - ClientData ignored, - Tcl_Interp *interp, - int objc, - Tcl_Obj *const objv[]) -{ - Interp *iPtr = (Interp *) interp; - CallFrame *savedFramePtr = iPtr->varFramePtr; - - if (objc != 2) { - Tcl_WrongNumArgs(interp, 1, objv, "script"); - return TCL_ERROR; - } - if (iPtr->varFramePtr->callerVarPtr != NULL) { - iPtr->varFramePtr = iPtr->varFramePtr->callerVarPtr; - } - - Tcl_NRAddCallback(interp, UpcatchCallback, savedFramePtr, NULL,NULL,NULL); - return TclNREvalObjEx(interp, objv[1], TCL_EVAL_NOERR, - iPtr->cmdFramePtr, 1); -} - -/* * Local Variables: * mode: c * c-basic-offset: 4 |