raising the head after a three-weeks refactoring
[m6w6/ext-psi] / src / engine.c
diff --git a/src/engine.c b/src/engine.c
deleted file mode 100644 (file)
index 6fba400..0000000
+++ /dev/null
@@ -1,769 +0,0 @@
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#else
-# include "php_config.h"
-#endif
-
-#include "php.h"
-#include "php_psi.h"
-
-#include "zend_exceptions.h"
-#include "zend_interfaces.h"
-#include "ext/spl/spl_iterators.h"
-
-#include "parser.h"
-#include "engine.h"
-#include "calc.h"
-#include "marshal.h"
-
-static inline void psi_do_set(zval *return_value, set_value *set)
-{
-       decl_arg *set_arg = set->vars->vars[0]->arg;
-
-       zval_dtor(return_value);
-       set->func->handler(return_value, set, set_arg->let);
-}
-
-int psi_internal_type(impl_type *type)
-{
-       switch (type->type) {
-       case PSI_T_BOOL:
-               return _IS_BOOL;
-       case PSI_T_INT:
-               return IS_LONG;
-       case PSI_T_FLOAT:
-       case PSI_T_DOUBLE:
-               return IS_DOUBLE;
-       case PSI_T_STRING:
-               return IS_STRING;
-       case PSI_T_ARRAY:
-               return IS_ARRAY;
-       default:
-               return 0;
-       }
-}
-
-zend_long psi_zval_count(zval *zvalue)
-{
-       /* mimic PHP count() */
-       zend_long count;
-       zval retval;
-
-       switch (Z_TYPE_P(zvalue)) {
-       default:
-               count = 1;
-               break;
-       case IS_NULL:
-               count = 0;
-               break;
-       case IS_ARRAY:
-               count = zend_array_count(Z_ARRVAL_P(zvalue));
-               break;
-       case IS_OBJECT:
-               count = 1;
-               if (Z_OBJ_HT_P(zvalue)->count_elements) {
-                       if (SUCCESS == Z_OBJ_HT_P(zvalue)->count_elements(zvalue, &count)) {
-                               break;
-                       }
-               }
-
-               if (instanceof_function(Z_OBJCE_P(zvalue), spl_ce_Countable)) {
-                       zend_call_method_with_0_params(zvalue, NULL, NULL, "count", &retval);
-                       if (Z_TYPE(retval) != IS_UNDEF) {
-                               count = zval_get_long(&retval);
-                               zval_ptr_dtor(&retval);
-                       }
-               }
-               break;
-       }
-
-       return count;
-}
-
-zend_internal_arg_info *psi_internal_arginfo(impl *impl)
-{
-       size_t i;
-       zend_internal_arg_info *aip;
-       zend_internal_function_info *fi;
-
-       aip = calloc(impl->func->args->count + 1 + !!impl->func->args->vararg.name, sizeof(*aip));
-
-       fi = (zend_internal_function_info *) &aip[0];
-       fi->allow_null = 1;
-       fi->required_num_args = psi_num_min_args(impl);
-       fi->return_reference = impl->func->return_reference;
-       fi->type_hint = psi_internal_type(impl->func->return_type);
-
-       if (impl->func->args->vararg.name) {
-               impl_arg *vararg = impl->func->args->vararg.name;
-               zend_internal_arg_info *ai = &aip[impl->func->args->count];
-
-               ai->name = vararg->var->name;
-               ai->allow_null = 1;
-               ai->type_hint = psi_internal_type(vararg->type);
-               if (vararg->var->reference) {
-                       ai->pass_by_reference = 1;
-               }
-               ai->is_variadic = 1;
-       }
-
-       for (i = 0; i < impl->func->args->count; ++i) {
-               impl_arg *iarg = impl->func->args->args[i];
-               zend_internal_arg_info *ai = &aip[i+1];
-
-               ai->name = iarg->var->name;
-               ai->type_hint = psi_internal_type(iarg->type);
-               if (iarg->var->reference) {
-                       ai->pass_by_reference = 1;
-               }
-               //if (iarg->var->reference || (iarg->def && iarg->def->type == PSI_T_NULL)) {
-                       ai->allow_null = 1;
-               //}
-       }
-
-       return aip;
-}
-
-size_t psi_num_min_args(impl *impl)
-{
-       size_t i, n = impl->func->args->count;
-
-       for (i = 0; i < impl->func->args->count; ++i) {
-               if (impl->func->args->args[i]->def) {
-                       --n;
-               }
-       }
-       return n;
-}
-
-
-static inline ZEND_RESULT_CODE psi_parse_args(zend_execute_data *execute_data, impl *impl)
-{
-       size_t i;
-       impl_arg *iarg;
-       zend_error_handling zeh;
-
-       zend_replace_error_handling(EH_THROW, zend_exception_get_default(), &zeh);
-
-       if (!impl->func->args->count) {
-               ZEND_RESULT_CODE rv;
-
-               rv = zend_parse_parameters_none();
-               zend_restore_error_handling(&zeh);
-               return rv;
-       }
-
-       ZEND_PARSE_PARAMETERS_START(psi_num_min_args(impl), impl->func->args->vararg.name ? -1 : impl->func->args->count)
-       nextarg:
-               if (impl->func->args->vararg.name && _i >= impl->func->args->count) {
-                       impl_arg *varg = impl->func->args->vararg.name;
-                       iarg = init_impl_arg(
-                                       init_impl_type(varg->type->type, varg->type->name),
-                                       init_impl_var(varg->var->name, varg->var->reference),
-                                       NULL);
-
-                       Z_PARAM_OPTIONAL;
-                       if (_i == impl->func->args->count) {
-                               impl->func->args->vararg.args = init_impl_args(iarg);
-                       } else {
-                               add_impl_arg(impl->func->args->vararg.args, iarg);
-                       }
-               } else {
-                       iarg = impl->func->args->args[_i];
-                       if (iarg->def) {
-                               Z_PARAM_OPTIONAL;
-                       }
-               }
-               if (PSI_T_BOOL == iarg->type->type) {
-                       Z_PARAM_BOOL(iarg->val.zend.bval);
-               } else if (PSI_T_INT == iarg->type->type) {
-                       Z_PARAM_LONG(iarg->val.zend.lval);
-               } else if (PSI_T_FLOAT == iarg->type->type || PSI_T_DOUBLE == iarg->type->type) {
-                       Z_PARAM_DOUBLE(iarg->val.dval);
-               } else if (PSI_T_STRING == iarg->type->type) {
-                       Z_PARAM_STR_EX(iarg->val.zend.str, 1, iarg->var->reference);
-                       if (iarg->val.zend.str) {
-                               zend_string_addref(iarg->val.zend.str);
-                       }
-               } else if (PSI_T_ARRAY == iarg->type->type) {
-                       Z_PARAM_PROLOGUE(0);
-               } else if (PSI_T_OBJECT == iarg->type->type) {
-                       Z_PARAM_PROLOGUE(0);
-               } else if (PSI_T_MIXED == iarg->type->type) {
-                       Z_PARAM_PROLOGUE(0);
-               } else if (PSI_T_CALLABLE == iarg->type->type) {
-                       zend_fcall_info fci;
-                       zend_fcall_info_cache fcc;
-
-                       Z_PARAM_FUNC_EX(fci, fcc, 1, 0);
-
-                       if (fci.size) {
-                               iarg->val.zend.cb = ecalloc(1, sizeof(zend_fcall));
-                               iarg->val.zend.cb->fci = fci;
-                               iarg->val.zend.cb->fcc = fcc;
-                       }
-               } else {
-                       error_code = ZPP_ERROR_FAILURE;
-                       break;
-               }
-               iarg->_zv = _arg;
-               ZVAL_DEREF(iarg->_zv);
-               if (_i < _num_args) {
-                       goto nextarg;
-               }
-       ZEND_PARSE_PARAMETERS_END_EX(
-               zend_restore_error_handling(&zeh);
-               return FAILURE
-       );
-
-       /* set up defaults */
-       for (i = 0; i < impl->func->args->count; ++i) {
-               if (i >= EX_NUM_ARGS() && iarg->def) {
-                       iarg = impl->func->args->args[i];
-
-                       switch (iarg->type->type) {
-                       case PSI_T_BOOL:
-                               iarg->val.zend.bval = iarg->def->type == PSI_T_TRUE ? 1 : 0;
-                               break;
-                       case PSI_T_INT:
-                               iarg->val.zend.lval = zend_atol(iarg->def->text, strlen(iarg->def->text));
-                               break;
-                       case PSI_T_FLOAT:
-                       case PSI_T_DOUBLE:
-                               iarg->val.dval = zend_strtod(iarg->def->text, NULL);
-                               break;
-                       case PSI_T_STRING:
-                               /* FIXME */
-                               iarg->val.zend.str = zend_string_init(&iarg->def->text[1], strlen(iarg->def->text) - 2, 0);
-                               break;
-                       }
-               }
-       }
-
-       zend_restore_error_handling(&zeh);
-       return SUCCESS;
-}
-
-static inline void *psi_do_calloc(let_calloc *alloc)
-{
-       zend_long n = psi_long_num_exp(alloc->nmemb, NULL), s = psi_long_num_exp(alloc->size, NULL);
-       void *mem = safe_emalloc(n, s, sizeof(void *));
-       memset(mem, 0, n * s + sizeof(void *));
-#if 0
-       fprintf(stderr, "calloc: %p\n", mem);
-#endif
-       return mem;
-}
-
-static inline impl_val *psi_let_func(let_func *func, decl_arg *darg);
-
-static inline void *psi_let_val(let_val *val, decl_arg *darg)
-{
-       ZEND_ASSERT(darg);
-
-       switch (val ? val->kind : PSI_LET_NULL) {
-       case PSI_LET_TMP:
-               memcpy(darg->ptr, deref_impl_val(val->data.var->arg->let, val->data.var), sizeof(impl_val));
-               break;
-       case PSI_LET_NULL:
-               if (darg->var->array_size) {
-                       darg->val.ptr = ecalloc(darg->var->array_size, sizeof(impl_val));
-                       darg->mem = darg->val.ptr;
-               } else {
-                       memset(&darg->val, 0, sizeof(impl_val));
-               }
-               break;
-       case PSI_LET_CALLOC:
-               darg->val.ptr = psi_do_calloc(val->data.alloc);
-               darg->mem = darg->val.ptr;
-               break;
-       case PSI_LET_NUMEXP:
-               darg->val.zend.lval = psi_long_num_exp(val->data.num, NULL);
-               break;
-       case PSI_LET_CALLBACK:
-               darg->val.ptr = val->data.callback->decl->call.sym;
-               break;
-       case PSI_LET_FUNC:
-               if (!psi_let_func(val->data.func, darg)) {
-                       return NULL;
-               }
-               break;
-       }
-
-       if (val && val->is_reference) {
-               return darg->let = &darg->ptr;
-       } else {
-               return darg->let = darg->ptr;
-       }
-}
-
-static inline impl_val *psi_let_func_ex(let_func *func, void *dptr, decl_type *dtype, decl_var *dvar, token_t itype, impl_val *ival, zval *zvalue, void **to_free) {
-       switch (func->type) {
-       case PSI_T_BOOLVAL:
-               return psi_let_boolval(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_INTVAL:
-               return psi_let_intval(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_FLOATVAL:
-               return psi_let_floatval(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_STRVAL:
-               return psi_let_strval(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_STRLEN:
-               return psi_let_strlen(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_PATHVAL:
-               return psi_let_pathval(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_OBJVAL:
-               return psi_let_objval(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_ZVAL:
-               return psi_let_zval(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_VOID:
-               return psi_let_void(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_COUNT:
-               return psi_let_count(dptr, dtype, itype, ival, zvalue, to_free);
-       case PSI_T_ARRVAL:
-               if (func->inner) {
-                       char *mem = NULL;
-                       size_t i, j = 0;
-                       decl_type *real;
-                       decl_args *args = extract_decl_type_args(dtype, &real);
-
-                       if (itype != PSI_T_ARRAY) {
-                               SEPARATE_ARG_IF_REF(zvalue);
-                               convert_to_array(zvalue);
-                       }
-
-                       if (args) {
-                               size_t size = extract_decl_type_size(real, NULL);
-
-                               mem = ecalloc(1, size + args->count * sizeof(void *));
-
-                               for (i = 0; i < args->count; ++i) {
-                                       decl_arg *darg = args->args[i];
-                                       let_val *lval = locate_let_vals_val(func->inner, darg->var->name);
-                                       impl_val *ptr = NULL;
-
-                                       if (lval) {
-                                               if ((ptr = psi_let_val(lval, darg))) {
-                                                       memcpy(mem + darg->layout->pos, ptr, darg->layout->len);
-                                                       if (darg->mem) {
-                                                               ((void **)(mem + size))[j++] = darg->mem;
-                                                       }
-                                               }
-                                               if (real->type == PSI_T_UNION) {
-                                                       break;
-                                               }
-                                       }
-                               }
-                       } else {
-                               zval *zv;
-                               let_val *inner = func->inner->vals[0];
-                               decl_var *sub_var;
-                               size_t size;
-
-                               if (inner->var) {
-                                       sub_var = inner->var;
-                               } else {
-                                       sub_var = copy_decl_var(dvar);
-                                       assert(sub_var->pointer_level);
-                                       --sub_var->pointer_level;
-                               }
-
-                               size = sub_var->pointer_level ? SIZEOF_VOID_P : extract_decl_type_size(real, NULL);
-                               mem = ecalloc(1, size * (1 + zend_array_count(Z_ARRVAL_P(zvalue))));
-
-                               ZEND_HASH_FOREACH_VAL_IND(Z_ARRVAL_P(zvalue), zv)
-                               {
-                                       void *tmp = NULL;
-                                       impl_val val = {0}, *ptr, *sub;
-
-                                       ptr = psi_let_func_ex(inner->data.func, &val, real, dvar, 0, NULL, zv, &tmp);
-                                       sub = deref_impl_val(ptr, sub_var);
-
-                                       memcpy(&mem[size * j++], &sub, size);
-                               }
-                               ZEND_HASH_FOREACH_END();
-
-                               if (sub_var != inner->var) {
-                                       free_decl_var(sub_var);
-                               }
-                       }
-                       return *to_free = mem;
-               } else {
-                       return psi_let_arrval(dptr, dtype, dvar, itype, ival, zvalue, to_free);
-               }
-               break;
-       default:
-               assert(0);
-       }
-       return NULL;
-}
-
-static inline impl_val *psi_let_func(let_func *func, decl_arg *darg) {
-
-       if (func->var->arg) {
-               return darg->ptr = psi_let_func_ex(func,
-                               darg->ptr, darg->type, darg->var,
-                               func->var->arg->type->type,
-                               &func->var->arg->val,
-                               func->var->arg->_zv,
-                               &darg->mem);
-       } else {
-               impl_var *ivar = locate_let_val_impl_var(func->outer);
-               zval *entry = zend_symtable_str_find(Z_ARRVAL_P(ivar->arg->_zv), func->var->name+1, strlen(func->var->name)-1);
-               impl_arg *iarg = init_impl_arg(
-                               init_impl_type(PSI_T_MIXED, "mixed"),
-                               copy_impl_var(func->var), NULL);
-
-               func->var->arg = iarg;
-               if (entry) {
-                       iarg->_zv = entry;
-               } else {
-                       zval ztmp;
-
-                       ZVAL_NULL(&ztmp);
-                       iarg->_zv = zend_symtable_str_update_ind(Z_ARRVAL_P(ivar->arg->_zv), func->var->name+1, strlen(func->var->name)-1, &ztmp);
-               }
-
-               psi_let_func(func, darg);
-               free_impl_arg(iarg);
-               return darg->ptr;
-       }
-
-}
-
-static inline void *psi_do_let(let_stmt *let)
-{
-       return psi_let_val(let->val, let->val->var->arg);
-}
-
-static inline void psi_do_return(zval *return_value, return_stmt *ret)
-{
-       ret->set->func->handler(return_value, ret->set, ret->set->vars->vars[0]->arg->ptr);
-}
-
-static inline void psi_do_free(free_stmt *fre)
-{
-       size_t i, j;
-
-       for (i = 0; i < fre->calls->count; ++i) {
-               free_call *f = fre->calls->list[i];
-
-               for (j = 0; j < f->vars->count; ++j) {
-                       decl_var *dvar = f->vars->vars[j];
-                       decl_arg *darg = dvar->arg;
-                       impl_val *fval = darg->let;
-
-                       f->decl->call.args[j] = deref_impl_val(fval, dvar);
-               }
-
-               /* FIXME: check in validate_* that free functions return scalar */
-               psi_context_call(&PSI_G(context), &f->decl->call, NULL);
-       }
-}
-
-static inline void psi_clean_array_struct(let_val *val, decl_arg *darg) {
-       if (val->kind == PSI_LET_FUNC
-       &&      val->data.func->type == PSI_T_ARRVAL) {
-               decl_type *type = real_decl_type(darg->type);
-
-               if (type->type == PSI_T_STRUCT) {
-                       void **ptr = (void **) ((char *) darg->mem + type->real.strct->size);
-
-                       while (*ptr) {
-                               efree(*ptr++);
-                       }
-                       // args = type->real.strct->args;
-               } else if (type->type == PSI_T_UNION) {
-                       void **ptr = (void **) ((char *) darg->mem + type->real.unn->size);
-
-                       if (*ptr) {
-                               efree(*ptr);
-                       }
-                       // args = type->real.unn->args;
-               }
-#if 0
-               if (args && val->data.func->inner) {
-                       size_t i;
-
-                       for (i = 0; i < val->data.func->inner->count; ++i) {
-                               let_val *inner = val->data.func->inner->vals[i];
-                               decl_var *refvar = locate_let_val_inner_ref(inner)->var;
-                               decl_arg *subarg = locate_decl_arg(args, refvar->name);
-
-                               if (subarg) {
-                                       psi_clean_array_struct(val->data.func->inner->vals[i], subarg);
-                                       if (subarg->mem) {
-                                               efree(subarg->mem);
-                                               subarg->mem = NULL;
-                                       }
-                               }
-                       }
-               }
-#endif
-       }
-}
-
-static inline void psi_clean_let_val(let_val *val) {
-
-       let_func *func = locate_let_val_func(val);
-
-       if (func && func->inner) {
-               size_t i;
-
-               for (i = 0; i < func->inner->count; ++i) {
-                       let_val *inner = func->inner->vals[i];
-                       psi_clean_let_val(inner);
-               }
-       }
-       if (val->var) {
-               decl_arg *darg = val->var->arg;
-               if (darg) {
-                       if (darg->mem) {
-                               psi_clean_array_struct(val, darg);
-                               efree(darg->mem);
-                               darg->mem = NULL;
-                       }
-                       darg->ptr = &darg->val;
-                       darg->let = darg->ptr;
-               }
-       }
-}
-
-static inline void psi_do_clean(impl *impl)
-{
-       size_t i;
-
-       if (impl->decl->func->ptr != &impl->decl->func->val) {
-               efree(impl->decl->func->ptr);
-               impl->decl->func->ptr = &impl->decl->func->val;
-       }
-
-       for (i = 0; i < impl->func->args->count; ++i ) {
-               impl_arg *iarg = impl->func->args->args[i];
-
-               switch (iarg->type->type) {
-               case PSI_T_STRING:
-                       if (iarg->val.zend.str) {
-                               zend_string_release(iarg->val.zend.str);
-                       }
-                       break;
-               case PSI_T_CALLABLE:
-                       if (iarg->val.zend.cb) {
-                               if (iarg->val.zend.cb->fci.size) {
-                                       zend_fcall_info_args_clear(&iarg->val.zend.cb->fci, 1);
-                               }
-                               efree(iarg->val.zend.cb);
-                       }
-                       break;
-               }
-       }
-
-       for (i = 0; i < impl->stmts->let.count; ++i) {
-               let_stmt *let = impl->stmts->let.list[i];
-               psi_clean_let_val(let->val);
-       }
-
-       if (impl->func->args->vararg.args) {
-               free_impl_args(impl->func->args->vararg.args);
-               impl->func->args->vararg.args = NULL;
-       }
-       if (impl->func->args->vararg.types) {
-               efree(impl->func->args->vararg.types);
-               impl->func->args->vararg.types = NULL;
-       }
-       if (impl->func->args->vararg.values) {
-               efree(impl->func->args->vararg.values);
-               impl->func->args->vararg.values = NULL;
-       }
-       if (impl->func->args->vararg.free_list) {
-               void **list = impl->func->args->vararg.free_list;
-
-               while (*list) {
-                       efree(*list++);
-               }
-
-               efree(impl->func->args->vararg.free_list);
-               impl->func->args->vararg.free_list = NULL;
-       }
-}
-
-
-static inline void psi_do_args(impl *impl) {
-       size_t i;
-
-       for (i = 0; i < impl->decl->args->count; ++i) {
-               impl->decl->call.args[i] = impl->decl->args->args[i]->let;
-       }
-
-       if (!impl->decl->func->var->pointer_level) {
-               decl_type *real;
-               decl_args *args = extract_decl_type_args(impl->decl->func->type, &real);
-
-               switch (real->type) {
-               case PSI_T_STRUCT:
-               case PSI_T_UNION:
-                       impl->decl->func->ptr = ecalloc(1,
-                                       extract_decl_type_size(real, NULL) + args->count * sizeof(void*));
-                       break;
-               default:
-                       break;
-               }
-       }
-}
-
-static inline impl_vararg *psi_do_varargs(impl *impl) {
-       size_t i, j;
-       impl_vararg *va = &impl->func->args->vararg;
-       size_t vacount = va->args->count;
-
-
-       if (!vacount) {
-               return NULL;
-       }
-
-       va->types = ecalloc(vacount, sizeof(*va->types));
-       va->values = ecalloc(vacount, sizeof(*va->values));
-
-       for (i = 0, j = 0; i < vacount; ++i) {
-               impl_arg *vaarg = va->args->args[i];
-               void *to_free = NULL;
-               token_t vatype = va->name->type->type;
-               psi_marshal_let let_fn;
-
-               if (vatype == PSI_T_MIXED) {
-                       switch (Z_TYPE_P(vaarg->_zv)) {
-                       case IS_TRUE:
-                       case IS_FALSE:  vatype = PSI_T_BOOL;    break;
-                       case IS_LONG:   vatype = PSI_T_INT;             break;
-                       case IS_DOUBLE: vatype = PSI_T_FLOAT;   break;
-                       default:                vatype = PSI_T_STRING;  break;
-                       }
-               }
-
-
-               switch (vatype) {
-               case PSI_T_BOOL:        let_fn = psi_let_boolval;       break;
-               case PSI_T_INT:         let_fn = psi_let_intval;        break;
-               case PSI_T_FLOAT:
-               case PSI_T_DOUBLE:      let_fn = psi_let_floatval;      break;
-               case PSI_T_STRING:      let_fn = psi_let_strval;        break;
-               EMPTY_SWITCH_DEFAULT_CASE();
-               }
-
-               va->types[i] = vatype;
-
-               /* FIXME: varargs with struct-by-value :) */
-               //if (!psi_let_val(let_fn, vaarg, &va->values[i], NULL, &to_free)) {
-               if (!let_fn(&va->values[i], NULL, vaarg->type->type, &vaarg->val, vaarg->_zv, &to_free)) {
-                       return NULL;
-               }
-
-               if (to_free) {
-                       if (!va->free_list) {
-                               va->free_list = ecalloc(vacount - i + 1, sizeof(*va->free_list));
-                       }
-                       va->free_list[j++] = to_free;
-               }
-       }
-
-       return va;
-}
-
-ZEND_RESULT_CODE psi_call(zend_execute_data *execute_data, zval *return_value, impl *impl)
-{
-       size_t i;
-       impl_vararg *va = NULL;
-
-       memset(impl->decl->func->ptr, 0, sizeof(impl_val));
-
-       if (SUCCESS != psi_parse_args(execute_data, impl)) {
-               return FAILURE;
-       }
-
-       for (i = 0; i < impl->stmts->let.count; ++i) {
-               let_stmt *let = impl->stmts->let.list[i];
-
-               if (!psi_do_let(let)) {
-                       psi_do_return(return_value, impl->stmts->ret.list[0]);
-                       psi_do_clean(impl);
-                       return FAILURE;
-               }
-       }
-
-       if (impl->decl->args) {
-               psi_do_args(impl);
-
-               if (impl->func->args->vararg.args) {
-                       va = psi_do_varargs(impl);
-               }
-       }
-
-       psi_context_call(&PSI_G(context), &impl->decl->call, va);
-       psi_do_return(return_value, impl->stmts->ret.list[0]);
-
-       for (i = 0; i < impl->stmts->set.count; ++i) {
-               set_stmt *set = impl->stmts->set.list[i];
-
-               if (set->arg->_zv) {
-                       psi_do_set(set->arg->_zv, set->val);
-               }
-       }
-
-       for (i = 0; i < impl->stmts->fre.count; ++i) {
-               free_stmt *fre = impl->stmts->fre.list[i];
-
-               psi_do_free(fre);
-       }
-       psi_do_clean(impl);
-
-       return SUCCESS;
-}
-
-ZEND_RESULT_CODE psi_callback(let_callback *cb, void *retval, unsigned argc, void **argv)
-{
-       size_t i;
-       decl *decl_cb = cb->decl;
-       impl_arg *iarg = cb->func->var->arg;
-       zval return_value, *zargv = calloc(argc, sizeof(*zargv));
-       void *result, *to_free = NULL;
-
-       ZEND_ASSERT(argc == cb->decl->args->count);
-
-       /* prepare args for the userland call */
-       for (i = 0; i < argc; ++i) {
-               cb->decl->args->args[i]->let = argv[i];
-       }
-       for (i = 0; i < cb->args->count; ++i) {
-               psi_do_set(&zargv[i], cb->args->vals[i]);
-       }
-       zend_fcall_info_argp(&iarg->val.zend.cb->fci, cb->args->count, zargv);
-
-       /* callback into userland */
-       ZVAL_UNDEF(&return_value);
-       iarg->_zv = &return_value;
-       zend_fcall_info_call(&iarg->val.zend.cb->fci, &iarg->val.zend.cb->fcc, iarg->_zv, NULL);
-
-       /* marshal return value of the userland call
-       switch (iarg->type->type) {
-       case PSI_T_BOOL:        zend_parse_arg_bool(iarg->_zv, &iarg->val.zend.bval, NULL, 0);          break;
-       case PSI_T_LONG:        zend_parse_arg_long(iarg->_zv, &iarg->val.zend.lval, NULL, 0, 1);       break;
-       case PSI_T_FLOAT:
-       case PSI_T_DOUBLE:      zend_parse_arg_double(iarg->_zv, &iarg->val.dval, NULL, 0);                     break;
-       case PSI_T_STRING:      zend_parse_arg_str(iarg->_zv, &iarg->val.zend.str, 0);                          break;
-       }
-       */
-       result = psi_let_func_ex(cb->func, retval, decl_cb->func->type, decl_cb->func->var, 0, &iarg->val, iarg->_zv, &to_free);
-       // result = cb->func->handler(retval, decl_cb->func->type, iarg, &to_free);
-
-       if (result != retval) {
-               *(void **)retval = result;
-       }
-
-       zend_fcall_info_args_clear(&iarg->val.zend.cb->fci, 0);
-       for (i = 0; i < cb->args->count; ++i) {
-               zval_ptr_dtor(&zargv[i]);
-       }
-       free(zargv);
-
-       return SUCCESS;
-
-}