Ziele Untersuchung
mit Columbo Integrität von
Datenbanken Interaktion und
Portierbarkeit Ergonomie der
Schnittstellen

Angebot Produkte Projekt Beratung

Mittel Analytik Modellierung Sprachen Algebra Logik Hardware Denken Kreativität

Zusammenhänge Gesellschaft Wirtschaft Branche Firma


products/sources/formale Sprachen/GAP/src/ (Algebra von RWTH Aachen Version 4.15.1^©) Datei vom 18.9.2025 mit Größe 4 kB

Quelle info.c Sprache: C

/****************************************************************************
**
**  This file is part of GAP, a system for computational discrete algebra.
**
**  Copyright of GAP belongs to its developers, whose names are too numerous
**  to list here. Please refer to the COPYRIGHT file for details.
**
**  SPDX-License-Identifier: GPL-2.0-or-later
**
**  This file declares the functions handling Info statements.
*/

#include "info.h"

#include "bool.h"
#include "calls.h"
#include "error.h"
#include "gapstate.h"
#include "gvars.h"
#include "modules.h"
#include "plist.h"

#ifdef HPCGAP
#include "hpc/aobjects.h"
#endif

enum {
    INFODATA_NUM = 1,
    INFODATA_CURRENTLEVEL,
    INFODATA_CLASSNAME,
    INFODATA_HANDLER,
    INFODATA_OUTPUT,
};

static Obj InfoDecision;
static Obj IsInfoClassListRep;
static Obj DefaultInfoHandler;
static Obj ResetShowUsedInfoClassesHandler;
static Obj ShowUsedInfoClassesHandler;

static Obj FuncShowUsedInfoClasses(Obj self, Obj choice)
{
    RequireTrueOrFalse(SELF_NAME, choice);

    if (choice == True) {
        STATE(ShowUsedInfoClassesActive) = 1;
        CALL_0ARGS(ResetShowUsedInfoClassesHandler);
    }
    else {
        STATE(ShowUsedInfoClassesActive) = 0;
    }

    return 0;
}

void InfoDoPrint(Obj cls, Obj lvl, Obj args)
{
    if (IS_PLIST(cls))
        cls = ELM_PLIST(cls, 1);
#ifdef HPCGAP
    Obj fun = Elm0AList(cls, INFODATA_HANDLER);
#else
    Obj fun = ELM_PLIST(cls, INFODATA_HANDLER);
#endif
    if (!fun)
        fun = DefaultInfoHandler;

    CALL_3ARGS(fun, cls, lvl, args);
}

Obj InfoCheckLevel(Obj selectors, Obj level)
{
    if (STATE(ShowUsedInfoClassesActive)) {
        CALL_2ARGS(ShowUsedInfoClassesHandler, selectors, level);
    }
    // Fast-path the most common failing case.
    // The fast-path only deals with the case where all arguments are of the
    // correct type, and were False is returned.
    if (CALL_1ARGS(IsInfoClassListRep, selectors) == True) {
#ifdef HPCGAP
        Obj index = ElmAList(selectors, INFODATA_CURRENTLEVEL);
#else
        Obj index = ELM_PLIST(selectors, INFODATA_CURRENTLEVEL);
#endif
        if (IS_INTOBJ(index) && IS_INTOBJ(level)) {
            // < on INTOBJs compares the represented integers.
            if (index < level) {
                return False;
            }
        }
    }
    return CALL_2ARGS(InfoDecision, selectors, level);
}

/****************************************************************************
**
*F * * * * * * * * * * * * * initialize module * * * * * * * * * * * * * * *
*/

/****************************************************************************
**
*V  GVarFuncs . . . . . . . . . . . . . . . . . . list of functions to export
*/
static StructGVarFunc GVarFuncs[] = {
    GVAR_FUNC_1ARGS(ShowUsedInfoClasses, choice), { 0, 0, 0, 0, 0 }
};

/****************************************************************************
**
*F  InitKernel( <module> )  . . . . . . . . initialise kernel data structures
*/
static Int InitKernel(StructInitInfo * module)
{
    // init filters and functions
    InitHdlrFuncsFromTable(GVarFuncs);

    // The work of handling Info messages is delegated to the GAP level
    ImportFuncFromLibrary("InfoDecision", &InfoDecision);
    ImportFuncFromLibrary("DefaultInfoHandler", &DefaultInfoHandler);
    ImportFuncFromLibrary("IsInfoClassListRep", &IsInfoClassListRep);
    ImportFuncFromLibrary("RESET_SHOW_USED_INFO_CLASSES",
                          &ResetShowUsedInfoClassesHandler);
    ImportFuncFromLibrary("SHOW_USED_INFO_CLASSES",
                          &ShowUsedInfoClassesHandler);

    return 0;
}

/****************************************************************************
**
*F  InitLibrary( <module> ) . . . . . . .  initialise library data structures
*/
static Int InitLibrary(StructInitInfo * module)
{

    InitGVarFuncsFromTable(GVarFuncs);

    ExportAsConstantGVar(INFODATA_CURRENTLEVEL);
    ExportAsConstantGVar(INFODATA_CLASSNAME);
    ExportAsConstantGVar(INFODATA_HANDLER);
    ExportAsConstantGVar(INFODATA_OUTPUT);
    ExportAsConstantGVar(INFODATA_NUM);

    return 0;
}

/****************************************************************************
**
*F  InitInfoInfo()  . . . . . . . . . . . . . . . . . table of init functions
*/
static StructInitInfo module = {
    // init struct using C99 designated initializers; for a full list of
    // fields, please refer to the definition of StructInitInfo
    .type = MODULE_BUILTIN,
    .name = "info",
    .initKernel = InitKernel,
    .initLibrary = InitLibrary,
};

StructInitInfo * InitInfoInfo(void)
{
    return &module;
}

quality100%

¤ Dauer der Verarbeitung: 0.14 Sekunden (vorverarbeitet) ¤

Wurzel

Suchen

Beweissystem der NASA

Beweissystem Isabelle

NIST Cobol Testsuite

Cephes Mathematical Library

Wiener Entwicklungsmethode

Haftungshinweis

Die Informationen auf dieser Webseite wurden nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit, noch Qualität der bereit gestellten Informationen zugesichert.