diff options
Diffstat (limited to 'generic/tclOO.c')
| -rw-r--r-- | generic/tclOO.c | 168 |
1 files changed, 77 insertions, 91 deletions
diff --git a/generic/tclOO.c b/generic/tclOO.c index 6aa03fa..c8471d5 100644 --- a/generic/tclOO.c +++ b/generic/tclOO.c @@ -90,18 +90,16 @@ static inline void RemoveClass(Class **list, int num, int idx); static inline void RemoveObject(Object **list, int num, int idx); static inline void SquelchCachedName(Object *oPtr); -static int PublicObjectCmd(ClientData clientData, - Tcl_Interp *interp, int objc, - Tcl_Obj *const *objv); static int PublicNRObjectCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const *objv); -static int PrivateObjectCmd(ClientData clientData, +static int PrivateNRObjectCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const *objv); -static int PrivateNRObjectCmd(ClientData clientData, +static int MyClassNRObjCmd(ClientData clientData, Tcl_Interp *interp, int objc, Tcl_Obj *const *objv); +static void MyClassDeleted(ClientData clientData); /* * Methods in the oo::object and oo::class classes. First, we define a helper @@ -152,65 +150,10 @@ static const char *initScript = /* " tcloo.tcl OO_LIBRARY oo::library;"; */ /* - * The scripted part of the definitions of slots. - */ - -static const char *slotScript = -"::oo::define ::oo::Slot {\n" -" method Get {} {error unimplemented}\n" -" method Set list {error unimplemented}\n" -" method -set args {\n" -" uplevel 1 [list [namespace which my] Set $args]\n" -" }\n" -" method -append args {\n" -" uplevel 1 [list [namespace which my] Set [list" -" {*}[uplevel 1 [list [namespace which my] Get]] {*}$args]]\n" -" }\n" -" method -clear {} {uplevel 1 [list [namespace which my] Set {}]}\n" -" forward --default-operation my -append\n" -" method unknown {args} {\n" -" set def --default-operation\n" -" if {[llength $args] == 0} {\n" -" return [uplevel 1 [list [namespace which my] $def]]\n" -" } elseif {![string match -* [lindex $args 0]]} {\n" -" return [uplevel 1 [list [namespace which my] $def {*}$args]]\n" -" }\n" -" next {*}$args\n" -" }\n" -" export -set -append -clear\n" -" unexport unknown destroy\n" -"}\n" -"::oo::objdefine ::oo::define::superclass forward --default-operation my -set\n" -"::oo::objdefine ::oo::define::mixin forward --default-operation my -set\n" -"::oo::objdefine ::oo::objdefine::mixin forward --default-operation my -set\n"; - -/* - * The body of the <cloned> method of oo::object. + * The scripted part of the definitions of TclOO. */ -static const char *clonedBody = -"foreach p [info procs [info object namespace $originObject]::*] {" -" set args [info args $p];" -" set idx -1;" -" foreach a $args {" -" lset args [incr idx] " -" [if {[info default $p $a d]} {list $a $d} {list $a}]" -" };" -" set b [info body $p];" -" set p [namespace tail $p];" -" proc $p $args $b;" -"};" -"foreach v [info vars [info object namespace $originObject]::*] {" -" upvar 0 $v vOrigin;" -" namespace upvar [namespace current] [namespace tail $v] vNew;" -" if {[info exists vOrigin]} {" -" if {[array exists vOrigin]} {" -" array set vNew [array get vOrigin];" -" } else {" -" set vNew $vOrigin;" -" }" -" }" -"}"; +#include "tclOOScript.h" /* * The actual definition of the variable holding the TclOO stub table. @@ -360,7 +303,7 @@ InitFoundation( ThreadLocalData *tsdPtr = Tcl_GetThreadData(&tsdKey, sizeof(ThreadLocalData)); Foundation *fPtr = ckalloc(sizeof(Foundation)); - Tcl_Obj *namePtr, *argsPtr, *bodyPtr; + Tcl_Obj *namePtr; Tcl_DString buffer; Command *cmdPtr; int i; @@ -440,18 +383,6 @@ InitFoundation( } /* - * Create the default <cloned> method implementation, used when 'oo::copy' - * is called to finish the copying of one object to another. - */ - - TclNewLiteralStringObj(argsPtr, "originObject"); - Tcl_IncrRefCount(argsPtr); - bodyPtr = Tcl_NewStringObj(clonedBody, -1); - TclOONewProcMethod(interp, fPtr->objectCls, 0, fPtr->clonedName, argsPtr, - bodyPtr, NULL); - TclDecrRefCount(argsPtr); - - /* * Finish setting up the class of classes by marking the 'new' method as * private; classes, unlike general objects, must have explicit names. We * also need to create the constructor for classes. @@ -491,7 +422,12 @@ InitFoundation( if (TclOODefineSlots(fPtr) != TCL_OK) { return TCL_ERROR; } - return Tcl_EvalEx(interp, slotScript, -1, 0); + + /* + * Evaluate the remaining definitions, which are a compiled-in Tcl script. + */ + + return Tcl_EvalEx(interp, tclOOSetupScript, -1, 0); } /* @@ -776,10 +712,9 @@ AllocObject( if (nsPtr->parentPtr != NULL) { nsPtr = nsPtr->parentPtr; } - } oPtr->command = TclCreateObjCommandInNs(interp, nameStr, - (Tcl_Namespace *)nsPtr, PublicObjectCmd, oPtr, NULL); + (Tcl_Namespace *)nsPtr, TclOOPublicObjectCmd, oPtr, NULL); /* * Add the NRE command and trace directly. While this breaks a number of @@ -796,7 +731,10 @@ AllocObject( tracePtr->refCount = 1; oPtr->myCommand = TclNRCreateCommandInNs(interp, "my", oPtr->namespacePtr, - PrivateObjectCmd, PrivateNRObjectCmd, oPtr, MyDeleted); + TclOOPrivateObjectCmd, PrivateNRObjectCmd, oPtr, MyDeleted); + oPtr->myclassCommand = TclNRCreateCommandInNs(interp, "myclass", + oPtr->namespacePtr, TclOOMyClassObjCmd, MyClassNRObjCmd, oPtr, + MyClassDeleted); return oPtr; } @@ -824,12 +762,12 @@ SquelchCachedName( /* * ---------------------------------------------------------------------- * - * MyDeleted -- + * MyDeleted, MyClassDeleted -- * - * This callback is triggered when the object's [my] command is deleted - * by any mechanism. It just marks the object as not having a [my] - * command, and so prevents cleanup of that when the object itself is - * deleted. + * These callbacks are triggered when the object's [my] or [myclass] + * commands are deleted by any mechanism. They just mark the object as + * not having a [my] command or [myclass] command, and so prevent cleanup + * of those commands when the object itself is deleted. * * ---------------------------------------------------------------------- */ @@ -843,6 +781,14 @@ MyDeleted( oPtr->myCommand = NULL; } + +static void +MyClassDeleted( + ClientData clientData) +{ + Object *oPtr = clientData; + oPtr->myclassCommand = NULL; +} /* * ---------------------------------------------------------------------- @@ -1215,6 +1161,9 @@ ObjectNamespaceDeleted( Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->command); } + if (oPtr->myclassCommand) { + Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->myclassCommand); + } if (oPtr->myCommand) { Tcl_DeleteCommandFromToken(oPtr->fPtr->interp, oPtr->myCommand); } @@ -2453,7 +2402,7 @@ Tcl_ObjectSetMetadata( /* * ---------------------------------------------------------------------- * - * PublicObjectCmd, PrivateObjectCmd, TclOOInvokeObject -- + * TclOOPublicObjectCmd, TclOOPrivateObjectCmd, TclOOInvokeObject -- * * Main entry point for object invocations. The Public* and Private* * wrapper functions (implementations of both object instance commands @@ -2463,8 +2412,8 @@ Tcl_ObjectSetMetadata( * ---------------------------------------------------------------------- */ -static int -PublicObjectCmd( +int +TclOOPublicObjectCmd( ClientData clientData, Tcl_Interp *interp, int objc, @@ -2484,8 +2433,8 @@ PublicNRObjectCmd( NULL); } -static int -PrivateObjectCmd( +int +TclOOPrivateObjectCmd( ClientData clientData, Tcl_Interp *interp, int objc, @@ -2538,6 +2487,43 @@ TclOOInvokeObject( /* * ---------------------------------------------------------------------- * + * TclOOMyClassObjCmd, MyClassNRObjCmd -- + * + * Special trap door to allow an object to delegate simply to its class. + * + * ---------------------------------------------------------------------- + */ + +int +TclOOMyClassObjCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const *objv) +{ + return Tcl_NRCallObjProc(interp, MyClassNRObjCmd, clientData, objc, objv); +} + +static int +MyClassNRObjCmd( + ClientData clientData, + Tcl_Interp *interp, + int objc, + Tcl_Obj *const *objv) +{ + Object *oPtr = clientData; + + if (objc < 2) { + Tcl_WrongNumArgs(interp, 1, objv, "methodName ?arg ...?"); + return TCL_ERROR; + } + return TclOOObjectCmdCore(oPtr->selfCls->thisPtr, interp, objc, objv, 0, + NULL); +} + +/* + * ---------------------------------------------------------------------- + * * TclOOObjectCmdCore, FinalizeObjectCall -- * * Main function for object invocations. Does call chain creation, @@ -2892,9 +2878,9 @@ Tcl_GetObjectFromObj( if (cmdPtr == NULL) { goto notAnObject; } - if (cmdPtr->objProc != PublicObjectCmd) { + if (cmdPtr->objProc != TclOOPublicObjectCmd) { cmdPtr = (Command *) TclGetOriginalCommand((Tcl_Command) cmdPtr); - if (cmdPtr == NULL || cmdPtr->objProc != PublicObjectCmd) { + if (cmdPtr == NULL || cmdPtr->objProc != TclOOPublicObjectCmd) { goto notAnObject; } } |