#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

#include "code-generation.h"

#include <assert.h>
#include <stdio.h>
#include <stdlib.h>

static void generate_global_variable(CcmmcAst *global_decl, CcmmcState *state)
{
    fputs("\t.data\n", state->asm_output);
    for (CcmmcAst *var_decl = global_decl->child->right_sibling;
         var_decl != NULL; var_decl = var_decl->right_sibling) {
        CcmmcSymbol *var_sym = ccmmc_symbol_table_retrieve(state->table,
            var_decl->value_id.name);
        switch (var_decl->value_id.kind) {
            case CCMMC_KIND_ID_NORMAL:
                fprintf(state->asm_output, "\t.comm %s, 4\n", var_sym->name);
                break;
            case CCMMC_KIND_ID_ARRAY:
                break;
            case CCMMC_KIND_ID_WITH_INIT:
                break;
            default:
                assert(false);
        }
    }
}

static void generate_function(CcmmcAst *funcion, CcmmcState *state)
{
}

static void generate_program(CcmmcState *state)
{
    for (CcmmcAst *global_decl = state->ast->child; global_decl != NULL;
         global_decl = global_decl->right_sibling) {
        switch (global_decl->value_decl.kind) {
            case CCMMC_KIND_DECL_VARIABLE:
                generate_global_variable(global_decl, state);
                break;
            case CCMMC_KIND_DECL_FUNCTION:
                generate_function(global_decl, state);
                break;
            case CCMMC_KIND_DECL_FUNCTION_PARAMETER:
            case CCMMC_KIND_DECL_TYPE:
            default:
                assert(false);
        }
    }
}

void ccmmc_code_generation(CcmmcState *state)
{
    state->table->this_scope = NULL;
    state->table->current = NULL;
    ccmmc_symbol_table_reopen_scope(state->table);
    generate_program(state);
}

// vim: set sw=4 ts=4 sts=4 et: