/* OpenIDA - Outil d'analyse de fichiers binaires
 * invoke.c - décompilation des appels de méthode
 *
 * Copyright (C) 2010-2011 Cyrille Bagard
 *
 *  This file is part of OpenIDA.
 *
 *  OpenIDA is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  OpenIDA is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.
 */


#include "translate.h"


#include "../instruction.h"
#include "../operand.h"
#include "../../../decomp/expr/assign.h"
#include "../../../decomp/expr/call.h"
#include "../../../format/dex/pool.h"




/******************************************************************************
*                                                                             *
*  Paramètres  : instr = instruction d'origine à convertir.                   *
*                ctx   = contexte de la phase de décompilation.               *
*                                                                             *
*  Description : Décompile une instruction de type 'invoke-virtual'.          *
*                                                                             *
*  Retour      : Instruction mise en place ou NULL.                           *
*                                                                             *
*  Remarques   : -                                                            *
*                                                                             *
******************************************************************************/

GDecInstruction *dalvik_decomp_instr_invoke_virtual(const GArchInstruction *instr, GDecContext *ctx)
{
    GDecInstruction *result;                /* Instruction à retourner     */


    size_t count;                           /* Quantité d'opérandes        */
    GArchOperand *op;                       /* Opérande de l'instruction   */
    uint32_t index;                         /* Indice de l'élément visé    */
    GDexFormat *format;                     /* Accès aux constantes        */
    GBinRoutine *routine;                   /* Routine visée par l'appel   */

    const char *string;                     /* Chaîne à afficher           */
    GOpenidaType *type;                     /* Type quelconque             */
    char *tmp;                              /* Chaîne à afficher & libérer */



    GArchOperand *operand;                  /* Opérande de l'instruction   */
    GDecInstruction *reg;                   /* Pseudo-registre redéfini    */
    GDecInstruction *imm;                   /* Valeur immédiate décompilée */

    GArchInstruction *iter;                 /* Boucle de parcours          */
    vmpa_t max;                             /* Limite à ne pas dépasser    */


    result = NULL;


    printf("PAssaage !\n");






    /* Récupération de la méthode */

    count = g_arch_instruction_count_operands(instr);
    op = g_arch_instruction_get_operand(instr, count - 1);

    index = g_dalvik_pool_operand_get_index(G_DALVIK_POOL_OPERAND(op));

    printf("POOL ?? %d -> %d\n", G_IS_DALVIK_POOL_OPERAND(op), index);

    format = G_DEX_FORMAT(g_object_get_data(G_OBJECT(ctx), "format"));
    routine = get_routine_from_dex_pool(format, index);
    if (routine == NULL) return NULL;


#if 0
            if (operand->cache.method == NULL)
                g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY,
                                                      "<bad_method_index>", 18, RTT_VAR_NAME);

            else
            {
                tmp = g_binary_routine_to_string(operand->cache.method);

                g_content_exporter_insert_into_buffer(exporter, buffer, BLC_ASSEMBLY,
                                                      tmp, strlen(tmp), RTT_VAR_NAME);

                free(tmp);


#endif

    result = g_routine_call_new(routine, true);

        //GDecInstruction *g_routine_call_new(GBinRoutine *routine, bool is_object)
    /*
    operand = g_arch_instruction_get_operand(instr, 1);
    reg = g_dec_context_convert_register(ctx, operand);

    operand = g_arch_instruction_get_operand(instr, 1);
    imm = g_imm_expression_new(G_IMM_OPERAND(operand));

    result = g_assign_expression_new(G_DEC_EXPRESSION(reg), G_DEC_EXPRESSION(imm));
    */





    /* Récupération d'un résultat ? */

    iter = instr;
    max = g_dec_context_get_max_address(ctx);

    iter = g_arch_instruction_get_next_iter(instr, iter, max);

    if (iter != NULL)
        switch (g_dalvik_instruction_get_opcode(G_DALVIK_INSTRUCTION(iter)))
        {
            case DOP_MOVE_RESULT:

                operand = g_arch_instruction_get_operand(iter, 0);
                reg = g_dec_context_convert_register(ctx, operand);

                result = g_assign_expression_new(G_DEC_EXPRESSION(reg), G_DEC_EXPRESSION(result));

                break;

            default:
                break;

        }

    return result;

}