amxo_parser_dm_func_utils.c

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#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
 
#include "amxo_parser_priv.h"
#include "amxo_parser.tab.h"
#include "amxo_parser_hooks_priv.h"
 
static int64_t amxo_attr_2_func_attr(int64_t attributes) {
    int64_t func_attrs = 0;
    if(SET_BIT(attr_private) & attributes) {
        func_attrs |= SET_BIT(amxd_fattr_private);
    }
    if(SET_BIT(attr_protected) & attributes) {
        func_attrs |= SET_BIT(amxd_fattr_protected);
    }
    if(SET_BIT(attr_template) & attributes) {
        func_attrs |= SET_BIT(amxd_fattr_template);
    }
    if(SET_BIT(attr_instance) & attributes) {
        func_attrs |= SET_BIT(amxd_fattr_instance);
    }
    if(SET_BIT(attr_asynchronous) & attributes) {
        func_attrs |= SET_BIT(amxd_fattr_async);
    }
    return func_attrs;
}
 
static int64_t amxo_attr_2_arg_attr(int64_t attributes) {
    int64_t arg_attrs = 0;
    if(SET_BIT(attr_in) & attributes) {
        arg_attrs |= SET_BIT(amxd_aattr_in);
    }
    if(SET_BIT(attr_out) & attributes) {
        arg_attrs |= SET_BIT(amxd_aattr_out);
    }
    if(SET_BIT(attr_mandatory) & attributes) {
        arg_attrs |= SET_BIT(amxd_aattr_mandatory);
    }
    if(SET_BIT(attr_strict) & attributes) {
        arg_attrs |= SET_BIT(amxd_aattr_strict);
    }
    return arg_attrs;
}
 
int amxo_parser_push_func(amxo_parser_t* pctx,
                          const char* name,
                          int64_t attr_bitmask,
                          uint32_t type) {
    amxd_function_t* func = NULL;
    amxd_function_t* orig_func = NULL;
    int64_t fattrs = amxo_attr_2_func_attr(attr_bitmask);
    int retval = -1;
    amxc_string_t res_name;
    amxc_string_init(&res_name, 0);
 
    if(amxc_string_set_resolved(&res_name, name, &pctx->config) > 0) {
        name = amxc_string_get(&res_name, 0);
    }
 
    orig_func = amxd_object_get_function(pctx->object, name);
 
    pctx->status = amxd_function_new(&func, name, type, NULL);
    if(pctx->status != amxd_status_ok) {
        amxo_parser_msg(pctx, "Failed to create function %s", name);
        goto exit;
    }
 
    if(amxd_object_get_type(pctx->object) == amxd_object_instance) {
        fattrs |= SET_BIT(amxd_fattr_instance);
    }
 
    amxd_function_set_attrs(func, fattrs, true);
 
    if(orig_func != NULL) {
        if(amxd_function_get_owner(orig_func) == pctx->object) {
            amxd_function_delete(&orig_func);
        }
        amxo_parser_msg(pctx, "Overriding function %s", name);
        pctx->status = amxd_object_add_function(pctx->object, func);
        retval = 1;
    } else {
        pctx->status = amxd_object_add_function(pctx->object, func);
        retval = 0;
    }
 
    amxo_hooks_add_func(pctx, name, fattrs, type);
 
    pctx->func = func;
 
exit:
    amxc_string_clean(&res_name);
    return retval;
}
 
bool amxo_parser_set_function_flags(amxo_parser_t* pctx, amxc_var_t* flags) {
    const amxc_htable_t* ht_flags = NULL;
 
    when_null(flags, exit);
    when_true(amxc_var_type_of(flags) != AMXC_VAR_ID_HTABLE, exit);
 
    ht_flags = amxc_var_constcast(amxc_htable_t, flags);
    amxc_htable_for_each(it, ht_flags) {
        const char* flag_name = amxc_htable_it_get_key(it);
        amxc_var_t* flag = amxc_var_from_htable_it(it);
        if(amxc_var_dyncast(bool, flag)) {
            amxd_function_set_flag(pctx->func, flag_name);
        } else {
            amxd_function_unset_flag(pctx->func, flag_name);
        }
    }
 
    amxc_var_delete(&flags);
 
exit:
    return true;
}
 
void amxo_parser_pop_func(amxo_parser_t* pctx) {
    amxd_object_fn_t fn = NULL;
    amxo_hooks_end_func(pctx);
    fn = (amxd_object_fn_t) pctx->resolved_fn;
    amxd_function_set_impl(pctx->func, fn);
    amxc_string_delete(&pctx->resolved_fn_name);
    pctx->func = NULL;
    pctx->resolved_fn = NULL;
}
 
bool amxo_parser_add_arg(amxo_parser_t* pctx,
                         const char* name,
                         int64_t attr_bitmask,
                         uint32_t type,
                         amxc_var_t* def_value) {
    bool retval = false;
    int64_t aattrs = amxo_attr_2_arg_attr(attr_bitmask);
    if(!IS_BIT_SET(aattrs, amxd_aattr_in) &&
       !IS_BIT_SET(aattrs, amxd_aattr_out)) {
        aattrs |= 1 << amxd_aattr_in;
    }
 
    amxo_hooks_add_func_arg(pctx, name, aattrs, type, def_value);
 
    pctx->status = amxd_function_new_arg(pctx->func, name, type, def_value);
    if(pctx->status != amxd_status_ok) {
        amxo_parser_msg(pctx, "Failed to create/add function argument %s", name);
        goto exit;
    }
 
    amxd_function_arg_set_attrs(pctx->func, name, aattrs, true);
    retval = true;
 
exit:
    return retval;
}