parser: add mmap and string parser
[m6w6/ext-psi] / src / module.c
index 03d9d8350f3c0b0412cfd6833b403d6e90b5d3a6..28c04145661550c4f6338a0c7df093d7fb7be7c0 100644 (file)
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
+/*******************************************************************************
+ Copyright (c) 2016, Michael Wallner <mike@php.net>.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+     * Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+     * Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*******************************************************************************/
+
+#include "php_psi_stdinc.h"
 
 #include "php.h"
 #include "php_ini.h"
 #include "ext/standard/info.h"
+#include "zend_constants.h"
+#include "zend_operators.h"
 
 #include "php_psi.h"
+#include "token.h"
 #include "parser.h"
 
-#include "libjit.h"
-#include "libffi.h"
+#if HAVE_LIBJIT
+# include "libjit.h"
+# ifndef HAVE_LIBFFI
+#  define PSI_ENGINE "jit"
+# endif
+#endif
+#if HAVE_LIBFFI
+# include "libffi.h"
+# define PSI_ENGINE "ffi"
+#endif
 
 ZEND_DECLARE_MODULE_GLOBALS(psi);
 
 PHP_INI_BEGIN()
-       STD_PHP_INI_ENTRY("psi.engine", "ffi", PHP_INI_SYSTEM, OnUpdateString, engine, zend_psi_globals, psi_globals)
-       STD_PHP_INI_ENTRY("psi.directory", "psis", PHP_INI_SYSTEM, OnUpdateString, directory, zend_psi_globals, psi_globals)
+       STD_PHP_INI_ENTRY("psi.engine", PSI_ENGINE, PHP_INI_SYSTEM, OnUpdateString, engine, zend_psi_globals, psi_globals)
+       STD_PHP_INI_ENTRY("psi.directory", "psi.d", PHP_INI_SYSTEM, OnUpdateString, directory, zend_psi_globals, psi_globals)
 PHP_INI_END();
 
-void psi_error(int type, const char *msg, ...)
-{
-       char buf[0x1000];
-       va_list argv;
-
-       va_start(argv, msg);
-       vslprintf(buf, 0x1000, msg, argv);
-       va_end(argv);
-
-       php_error(type, buf);
-}
+static zend_object_handlers psi_object_handlers;
+static zend_class_entry *psi_class_entry;
 
-int psi_internal_type(impl_type *type)
+zend_class_entry *psi_object_get_class_entry()
 {
-       switch (type->type) {
-       case PSI_T_BOOL:
-               return _IS_BOOL;
-       case PSI_T_INT:
-       case PSI_T_LONG:
-               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_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, sizeof(*aip));
-
-       fi = (zend_internal_function_info *) &aip[0];
-       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);
-
-       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;
+       return psi_class_entry;
 }
 
-size_t psi_num_min_args(impl *impl)
+static void psi_object_free(zend_object *o)
 {
-       size_t i, n = impl->func->args->count;
+       psi_object *obj = PSI_OBJ(NULL, o);
 
-       for (i = 0; i < impl->func->args->count; ++i) {
-               if (impl->func->args->args[i]->def) {
-                       --n;
+       if (obj->data) {
+               if (obj->dtor) {
+                       obj->dtor(obj->data);
                }
+               obj->data = NULL;
        }
-       return n;
+       zend_object_std_dtor(o);
 }
 
-void psi_to_int(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
+zend_object *psi_object_init_ex(zend_class_entry *ce, void *data, void (*dtor)(void *))
 {
-       switch (t) {
-       case PSI_T_FLOAT:
-               RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->fval);
-               convert_to_long(return_value);
-               break;
-       case PSI_T_DOUBLE:
-               RETVAL_DOUBLE(deref_impl_val(ret_val, var)->dval);
-               convert_to_long(return_value);
-               break;
-       default:
-               RETVAL_LONG(deref_impl_val(ret_val, var)->lval);
-       }
-}
+       psi_object *o;
 
-void psi_to_double(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
-{
-       switch (t) {
-       case PSI_T_FLOAT:
-               RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->fval);
-               break;
-       case PSI_T_DOUBLE:
-               RETVAL_DOUBLE(deref_impl_val(ret_val, var)->dval);
-               break;
-       default:
-               RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->lval);
-               break;
+       if (!ce) {
+               ce = psi_class_entry;
        }
-}
 
-void psi_to_string(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
-{
-       switch (t) {
-       case PSI_T_CHAR:
-       case PSI_T_SINT8:
-       case PSI_T_UINT8:
-               if (!var->arg->var->pointer_level) {
-                       RETVAL_STRINGL(&ret_val->cval, 1);
-               } else {
-                       ret_val = deref_impl_val(ret_val, var);
-                       if (ret_val && ret_val->ptr) {
-                               RETVAL_STRING(ret_val->ptr);
-                       } else {
-                               RETVAL_EMPTY_STRING();
-                       }
-               }
-               break;
-       case PSI_T_FLOAT:
-               RETVAL_DOUBLE((double) deref_impl_val(ret_val, var)->fval);
-               convert_to_string(return_value);
-               break;
-       case PSI_T_DOUBLE:
-               RETVAL_DOUBLE(deref_impl_val(ret_val, var)->dval);
-               convert_to_string(return_value);
-               break;
-       default:
-               RETVAL_LONG(deref_impl_val(ret_val, var)->lval);
-               convert_to_string(return_value);
-               break;
-       }
-}
-
-size_t psi_t_alignment(token_t t)
-{
-       size_t align;
-#define PSI_TAS_D(T) struct PSI_TAS_ ##T { \
-       char c; \
-       T x; \
-}
-#define PSI_TAS_P(T) struct PSI_TAS_ ## T ## _pointer { \
-       char c; \
-       T *x; \
-}
-#define PSI_TAS_C(T) align = offsetof(struct PSI_TAS_ ##T, x)
-#define PSI_TAS_CASE(T) { \
-       PSI_TAS_D(T); \
-       PSI_TAS_C(T); \
-}
-       switch (t) {
-       case PSI_T_CHAR:
-               PSI_TAS_CASE(char);
-               break;
-       case PSI_T_SINT8:
-               PSI_TAS_CASE(int8_t);
-               break;
-       case PSI_T_UINT8:
-               PSI_TAS_CASE(uint8_t);
-               break;
-       case PSI_T_SHORT:
-               PSI_TAS_CASE(short);
-               break;
-       case PSI_T_SINT16:
-               PSI_TAS_CASE(int16_t);
-               break;
-       case PSI_T_UINT16:
-               PSI_TAS_CASE(uint16_t);
-               break;
-       case PSI_T_INT:
-               PSI_TAS_CASE(int);
-               break;
-       case PSI_T_SINT32:
-               PSI_TAS_CASE(int32_t);
-               break;
-       case PSI_T_UINT32:
-               PSI_TAS_CASE(uint32_t);
-               break;
-       case PSI_T_LONG:
-               PSI_TAS_CASE(long);
-               break;
-       case PSI_T_SINT64:
-               PSI_TAS_CASE(int64_t);
-               break;
-       case PSI_T_UINT64:
-               PSI_TAS_CASE(uint64_t);
-               break;
-       case PSI_T_FLOAT:
-               PSI_TAS_CASE(float);
-               break;
-       case PSI_T_DOUBLE:
-               PSI_TAS_CASE(double);
-               break;
-       case PSI_T_SIZE_T:
-               PSI_TAS_CASE(size_t);
-               break;
-       case PSI_T_POINTER:
-               {
-                       PSI_TAS_P(char);
-                       PSI_TAS_C(char_pointer);
-               }
-               break;
-       EMPTY_SWITCH_DEFAULT_CASE();
-       }
+       o = ecalloc(1, sizeof(*o) + zend_object_properties_size(ce));
 
-       return align;
-}
+       o->data = data;
+       o->dtor = dtor;
 
-size_t psi_t_size(token_t t)
-{
-       size_t size;
-
-       switch (t) {
-       case PSI_T_CHAR:
-               size = sizeof(char);
-               break;
-       case PSI_T_SINT8:
-       case PSI_T_UINT8:
-               size = 1;
-               break;
-       case PSI_T_SHORT:
-               size = sizeof(short);
-               break;
-       case PSI_T_SINT16:
-       case PSI_T_UINT16:
-               size = 2;
-               break;
-       case PSI_T_INT:
-               size = sizeof(int);
-               break;
-       case PSI_T_SINT32:
-       case PSI_T_UINT32:
-               size = 4;
-               break;
-       case PSI_T_LONG:
-               size = sizeof(long);
-               break;
-       case PSI_T_SINT64:
-       case PSI_T_UINT64:
-               size = 8;
-               break;
-       case PSI_T_FLOAT:
-               size = sizeof(float);
-               break;
-       case PSI_T_DOUBLE:
-               size = sizeof(double);
-               break;
-       case PSI_T_SIZE_T:
-               size = sizeof(size_t);
-               break;
-       case PSI_T_POINTER:
-               size = sizeof(char *);
-               break;
-       EMPTY_SWITCH_DEFAULT_CASE();
-       }
-       return size;
+       zend_object_std_init(&o->std, ce);
+       object_properties_init(&o->std, ce);
+       o->std.handlers = &psi_object_handlers;
+       return &o->std;
 }
 
-size_t psi_t_align(token_t t, size_t s)
+zend_object *psi_object_init(zend_class_entry *ce)
 {
-       size_t a = psi_t_alignment(t);
-       return ((s - 1) | (a - 1)) + 1;
+       return psi_object_init_ex(ce, NULL, NULL);
 }
 
-static impl_val *iterate(impl_val *val, token_t t, unsigned i, impl_val *tmp)
+ZEND_BEGIN_ARG_INFO_EX(ai_psi_dump, 0, 0, 0)
+       ZEND_ARG_INFO(0, stream)
+ZEND_END_ARG_INFO();
+static PHP_FUNCTION(psi_dump)
 {
-       size_t size = psi_t_size(t);
+       php_stream *s;
+       zval *r = NULL;
+       int fd = STDOUT_FILENO;
 
-       memset(tmp, 0, sizeof(*tmp));
-       memcpy(tmp, val->ptr + size * i, size);
-       return tmp;
-}
-
-void psi_from_zval(impl_val *mem, decl_arg *spec, zval *zv, void **tmp)
-{
-       decl_type *type = real_decl_type(spec->type);
-
-       switch (type->type) {
-       case PSI_T_FLOAT:
-               mem->fval = (float) zval_get_double(zv);
-               break;
-       case PSI_T_DOUBLE:
-               mem->dval = zval_get_double(zv);
-               break;
-       case PSI_T_CHAR:
-       case PSI_T_SINT8:
-       case PSI_T_UINT8:
-               if (spec->var->pointer_level) {
-                       zend_string *zs = zval_get_string(zv);
-                       *tmp = mem->ptr = estrndup(zs->val, zs->len);
-                       zend_string_release(zs);
-                       break;
-               }
-               /* no break */
-       default:
-               mem->zend.lval = zval_get_long(zv);
-               break;
+       if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "|r!", &r)) {
+               return;
        }
-}
+       if (r) {
+               php_stream_from_zval(s, r);
 
-void *psi_array_to_struct(decl_struct *s, HashTable *arr)
-{
-       size_t i, j = 0, size = decl_struct_size(s);
-       char *mem = ecalloc(1, size + s->args->count * sizeof(void *));
-
-       if (arr) for (i = 0; i < s->args->count; ++i) {
-               decl_struct_layout *layout = &s->layout[i];
-               decl_arg *darg = s->args->args[i];
-               zval *entry = zend_hash_str_find_ind(arr, darg->var->name, strlen(darg->var->name));
-
-               if (entry) {
-                       impl_val val;
-                       void *tmp = NULL;
-
-                       memset(&tmp, 0, sizeof(tmp));
-                       psi_from_zval(&val, darg, entry, &tmp);
-                       memcpy(mem + layout->pos, &val, layout->len);
-                       if (tmp) {
-                               ((void **)(mem + size))[j++] = tmp;
-                       }
+               if (SUCCESS != php_stream_cast(s, PHP_STREAM_AS_FD | PHP_STREAM_CAST_INTERNAL, (void **)&fd, 1)) {
+                       RETURN_FALSE;
                }
        }
-       return mem;
+       psi_context_dump(PSI_G(context), fd);
 }
 
-void psi_to_array(zval *return_value, token_t t, impl_val *ret_val, decl_var *var)
+ZEND_BEGIN_ARG_INFO_EX(ai_psi_validate, 0, 0, 1)
+       ZEND_ARG_INFO(0, file)
+ZEND_END_ARG_INFO();
+static PHP_FUNCTION(psi_validate)
 {
-       zval ele;
-       unsigned i;
-       impl_val tmp;
-
-       array_init(return_value);
-
-       if (t == PSI_T_STRUCT) {
-               decl_struct *s = real_decl_type(var->arg->type)->strct;
-               ret_val = deref_impl_val(ret_val, var);
-
-               ZEND_ASSERT(s);
-               for (i = 0; i < s->args->count; ++i) {
-                       decl_arg *darg = s->args->args[i];
-                       decl_struct_layout layout = s->layout[i];
-                       impl_val tmp;
-                       zval ztmp;
-                       char *ptr = (char *) ret_val->ptr + layout.pos;
-
-                       memset(&tmp, 0, sizeof(tmp));
-                       memcpy(&tmp, ptr, layout.len);
-                       switch (real_decl_type(darg->type)->type) {
-                       case PSI_T_CHAR:
-                               if (darg->var->pointer_level) {
-                                       psi_to_string(&ztmp, real_decl_type(darg->type)->type, &tmp, darg->var);
-                                       break;
-                               }
-                               /* no break */
-                       case PSI_T_INT:
-                       case PSI_T_LONG:
-                               psi_to_int(&ztmp, real_decl_type(darg->type)->type, &tmp, darg->var);
-                               break;
-                       default:
-                               printf("t=%d\n", real_decl_type(darg->type)->type);
-                               abort();
-                       }
-                       add_assoc_zval(return_value, darg->var->name, &ztmp);
-               }
+       zend_string *file;
+       struct psi_parser P;
+       struct psi_data D = {0};
+
+       if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "P", &file)) {
                return;
        }
-       ret_val = deref_impl_val(ret_val, var);
-       for (i = 0; i < var->arg->var->array_size; ++i) {
-               impl_val *ptr = iterate(ret_val, t, i, &tmp);
-
-               switch (t) {
-               case PSI_T_FLOAT:
-                       ZVAL_DOUBLE(&ele, (double) ptr->fval);
-                       break;
-               case PSI_T_DOUBLE:
-                       ZVAL_DOUBLE(&ele, ptr->dval);
-                       break;
-               default:
-                       ZVAL_LONG(&ele, ptr->lval);
-                       break;
-               }
 
-               add_next_index_zval(return_value, &ele);
+       if (!psi_parser_init(&P, psi_error_wrapper, 0)) {
+               RETURN_FALSE;
        }
-}
-
-ZEND_RESULT_CODE psi_parse_args(zend_execute_data *execute_data, impl *impl)
-{
-       impl_arg *iarg;
-
-       if (!impl->func->args->count) {
-               return zend_parse_parameters_none();
+       if (!psi_parser_open_file(&P, file->val)) {
+               psi_parser_dtor(&P);
+               RETURN_FALSE;
        }
 
-       ZEND_PARSE_PARAMETERS_START(psi_num_min_args(impl), impl->func->args->count)
-       nextarg:
-               iarg = impl->func->args->args[_i];
-               if (iarg->def) {
-                       Z_PARAM_OPTIONAL;
-               }
-               if (PSI_T_BOOL == iarg->type->type) {
-                       if (iarg->def) {
-                               iarg->val.zend.bval = iarg->def->type == PSI_T_TRUE ? 1 : 0;
-                       }
-                       Z_PARAM_BOOL(iarg->val.zend.bval);
-               } else if (PSI_T_INT == iarg->type->type || PSI_T_LONG == iarg->type->type) {
-                       if (iarg->def) {
-                               iarg->val.zend.lval = zend_atol(iarg->def->text, strlen(iarg->def->text));
-                       }
-                       Z_PARAM_LONG(iarg->val.zend.lval);
-               } else if (PSI_T_FLOAT == iarg->type->type || PSI_T_DOUBLE == iarg->type->type) {
-                       if (iarg->def) {
-                               iarg->val.dval = zend_strtod(iarg->def->text, NULL);
-                       }
-                       Z_PARAM_DOUBLE(iarg->val.dval);
-               } else if (PSI_T_STRING == iarg->type->type) {
-                       struct {char *val; size_t len;} str;
-                       if (iarg->def) {
-                               /* FIXME */
-                               str.len = strlen(iarg->def->text) - 2;
-                               str.val = &iarg->def->text[1];
-                       }
-                       Z_PARAM_STR_EX(iarg->val.zend.str, 1, 0);
-                       if (iarg->val.zend.str) {
-                               zend_string_addref(iarg->val.zend.str);
-                       } else if (iarg->def) {
-                               iarg->val.zend.str = zend_string_init(str.val, str.len, 0);
-                       }
-               } else if (PSI_T_ARRAY == iarg->type->type) {
-                       /* handled as _zv in let or set */
-                       Z_PARAM_PROLOGUE(0);
-               } else {
-                       error_code = ZPP_ERROR_FAILURE;
+       while (0 < psi_parser_scan(&P)) {
+               psi_parser_parse(&P, psi_token_alloc(&P));
+               if (P.num == PSI_T_EOF) {
                        break;
                }
-               iarg->_zv = _arg;
-               if (_i < _max_num_args) {
-                       goto nextarg;
-               }
-       ZEND_PARSE_PARAMETERS_END_EX(return FAILURE);
-
-       return SUCCESS;
-}
-
-void *psi_do_calloc(let_calloc *alloc)
-{
-       decl_type *type = real_decl_type(alloc->type);
-       size_t size;
-
-       if (type->type == PSI_T_STRUCT) {
-               /* psi_do_clean expects a NULL pointer after the struct */
-               size = decl_struct_size(type->strct) + sizeof(void *);
-       } else {
-               size = psi_t_size(type->type);
        }
+       psi_parser_parse(&P, NULL);
 
-       return ecalloc(alloc->n, size);
+       psi_data_ctor(&D, P.error, P.flags);
+       RETVAL_BOOL(psi_data_validate(&D, PSI_DATA(&P)) && !P.errors);
+       psi_data_dtor(&D);
+
+       psi_parser_dtor(&P);
 }
 
-void *psi_do_let(decl_arg *darg)
+ZEND_BEGIN_ARG_INFO_EX(ai_psi_validate_string, 0, 0, 1)
+       ZEND_ARG_INFO(0, string)
+ZEND_END_ARG_INFO();
+static PHP_FUNCTION(psi_validate_string)
 {
-       impl_arg *iarg = darg->let->arg;
-       impl_val *arg_val;
-
-       darg->let->ptr = &darg->let->out;
-       arg_val = darg->let->ptr;
-
-       if (!iarg) {
-               /* let foo = calloc(1, long);
-                * let foo = NULL;
-                * let foo;
-                */
-               if (darg->let->val->func && darg->let->val->func->type == PSI_T_CALLOC) {
-                       arg_val->ptr = psi_do_calloc(darg->let->val->func->alloc);
-                       darg->let->mem = arg_val->ptr;
-               } else if (darg->var->array_size) {
-                       arg_val->ptr = ecalloc(darg->var->array_size, sizeof(*arg_val));
-                       darg->let->mem = arg_val->ptr;
-               } else {
-                       memset(arg_val, 0, sizeof(*arg_val));
-               }
-       } else {
-
-               switch (darg->let->val->func->type) {
-               case PSI_T_BOOLVAL:
-                       if (iarg->type->type == PSI_T_BOOL) {
-                               arg_val->cval = iarg->val.zend.bval;
-                       } else {
-                               arg_val->cval = zend_is_true(iarg->_zv);
-                       }
-                       break;
-               case PSI_T_INTVAL:
-                       if (iarg->type->type == PSI_T_INT || iarg->type->type == PSI_T_LONG) {
-                               arg_val->lval = iarg->val.zend.lval;
-                       } else {
-                               arg_val->lval = zval_get_long(iarg->_zv);
-                       }
-                       break;
-               case PSI_T_STRVAL:
-                       if (iarg->type->type == PSI_T_STRING) {
-                               arg_val->ptr = estrdup(iarg->val.zend.str->val);
-                               darg->let->mem = arg_val->ptr;
-                               zend_string_release(iarg->val.zend.str);
-                       } else {
-                               zend_string *zs = zval_get_string(iarg->_zv);
-                               arg_val->ptr = estrdup(zs->val);
-                               darg->let->mem = arg_val->ptr;
-                               zend_string_release(zs);
-                       }
-                       break;
-               case PSI_T_STRLEN:
-                       if (iarg->type->type == PSI_T_STRING) {
-                               arg_val->lval = iarg->val.zend.str->len;
-                               zend_string_release(iarg->val.zend.str);
-                       } else {
-                               zend_string *zs = zval_get_string(iarg->_zv);
-                               arg_val->lval = zs->len;
-                               zend_string_release(zs);
-                       }
-                       break;
-               case PSI_T_ARRVAL:
-                       if (iarg->type->type == PSI_T_ARRAY) {
-                               decl_type *type = real_decl_type(darg->type);
-
-                               switch (type->type) {
-                               case PSI_T_STRUCT:
-                                       arg_val->ptr = psi_array_to_struct(type->strct, HASH_OF(iarg->_zv));
-                                       darg->let->mem = arg_val->ptr;
-                                       break;
-                               }
-                       }
-                       break;
-               EMPTY_SWITCH_DEFAULT_CASE();
-               }
-       }
+       zend_string *string;
+       struct psi_parser P;
+       struct psi_data D = {0};
 
-       if (darg->let->val && darg->let->val->is_reference) {
-               return &darg->let->ptr;
-       } else {
-               return darg->let->ptr;
+       if (SUCCESS != zend_parse_parameters(ZEND_NUM_ARGS(), "S", &string)) {
+               return;
        }
-}
 
-void psi_do_set(zval *return_value, set_func *func, decl_vars *vars)
-{
-       impl_val *val = (impl_val *) &vars->vars[0]->arg->let->ptr;
-
-       ZVAL_DEREF(return_value);
-       zval_dtor(return_value);
-
-       switch (func->type) {
-       case PSI_T_TO_STRING:
-               psi_to_string(return_value, real_decl_type(vars->vars[0]->arg->type)->type, val, vars->vars[0]);
-               break;
-       case PSI_T_TO_ARRAY:
-               psi_to_array(return_value, real_decl_type(vars->vars[0]->arg->type)->type, val, vars->vars[0]);
-               break;
-       EMPTY_SWITCH_DEFAULT_CASE();
+       if (!psi_parser_init(&P, psi_error_wrapper, 0)) {
+               RETURN_FALSE;
        }
-}
-
-void psi_do_return(impl *impl, impl_val *ret_val, zval *return_value)
-{
-       return_stmt *ret = impl->stmts->ret.list[0];
-
-       switch (ret->func->type) {
-       case PSI_T_TO_STRING:
-               psi_to_string(return_value, real_decl_type(impl->decl->func->type)->type, ret_val, ret->decl);
-               break;
-       case PSI_T_TO_INT:
-               psi_to_int(return_value, real_decl_type(impl->decl->func->type)->type, ret_val, ret->decl);
-               break;
-       case PSI_T_TO_ARRAY:
-               psi_to_array(return_value, real_decl_type(impl->decl->func->type)->type, ret_val, ret->decl);
-               break;
-       EMPTY_SWITCH_DEFAULT_CASE();
+       if (!psi_parser_open_string(&P, string->val, string->len)) {
+               psi_parser_dtor(&P);
+               RETURN_FALSE;
        }
-}
-
-void psi_do_free(free_stmt *fre)
-{
-       size_t i;
-
-       for (i = 0; i < fre->vars->count; ++i) {
-               decl_var *dvar = fre->vars->vars[i];
 
-               if (dvar->arg && dvar->arg->let->out.ptr) {
-                       free(dvar->arg->let->out.ptr);
-                       dvar->arg->let->out.ptr = NULL;
+       while (0 < psi_parser_scan(&P)) {
+               psi_parser_parse(&P, psi_token_alloc(&P));
+               if (P.num == PSI_T_EOF) {
+                       break;
                }
        }
+       psi_parser_parse(&P, NULL);
+
+       psi_data_ctor(&D, P.error, P.flags);
+       RETVAL_BOOL(psi_data_validate(&D, PSI_DATA(&P)) && !P.errors);
+       psi_data_dtor(&D);
+
+       psi_parser_dtor(&P);
 }
 
-void psi_do_clean(impl *impl)
+static PHP_MINIT_FUNCTION(psi)
 {
-       size_t i;
-
-       for (i = 0; i < impl->func->args->count; ++i ) {
-               impl_arg *iarg = impl->func->args->args[i];
+       struct psi_context_ops *ops = NULL;
+       zend_class_entry ce = {0};
+       unsigned flags = 0;
 
-               switch (iarg->type->type) {
-               case PSI_T_STRING:
-                       if (iarg->val.zend.str) {
-                               zend_string_release(iarg->val.zend.str);
-                       }
-                       break;
-               }
+       if (psi_check_env("PSI_DEBUG")) {
+               flags |= PSI_DEBUG;
+       }
+       if (psi_check_env("PSI_SILENT")) {
+               flags |= PSI_SILENT;
        }
 
-       if (impl->decl->args) for (i = 0; i < impl->decl->args->count; ++i) {
-               decl_arg *darg = impl->decl->args->args[i];
+       REGISTER_INI_ENTRIES();
 
-               if (darg->let && darg->let->mem) {
-                       decl_type *type = real_decl_type(darg->type);
+       INIT_NS_CLASS_ENTRY(ce, "psi", "object", NULL);
+       psi_class_entry = zend_register_internal_class_ex(&ce, NULL);
+       psi_class_entry->create_object = psi_object_init;
 
-                       if (type->type == PSI_T_STRUCT) {
-                               size_t eos = decl_struct_size(type->strct);
-                               void **ptr = (void **) ((char *) darg->let->mem + eos);
+       memcpy(&psi_object_handlers, zend_get_std_object_handlers(), sizeof(zend_object_handlers));
+       psi_object_handlers.offset = XtOffsetOf(psi_object, std);
+       psi_object_handlers.free_obj = psi_object_free;
+       psi_object_handlers.clone_obj = NULL;
 
-                               while (*ptr) {
-                                       efree(*ptr++);
-                               }
-                       }
-                       efree(darg->let->mem);
-                       darg->let->mem = NULL;
-               }
-       }
-}
+#ifdef HAVE_LIBJIT
+       if (!strcasecmp(PSI_G(engine), "jit")) {
+               ops = psi_libjit_ops();
+       } else
+#endif
+#ifdef HAVE_LIBFFI
+               ops = psi_libffi_ops();
+#endif
 
-PHP_MINIT_FUNCTION(psi)
-{
-       PSI_ContextOps *ops;
+       if (!ops) {
+               php_error(E_WARNING, "No PSI engine found");
+               return FAILURE;
+       }
 
-       REGISTER_INI_ENTRIES();
+       PSI_G(context) = psi_context_init(NULL, ops, psi_error_wrapper, flags);
+       psi_context_build(PSI_G(context), PSI_G(directory));
 
-       if (!strcasecmp(PSI_G(engine), "jit")) {
-               ops = PSI_Libjit();
-       } else {
-               ops = PSI_Libffi();
+       if (psi_check_env("PSI_DUMP")) {
+               psi_context_dump(PSI_G(context), STDOUT_FILENO);
        }
 
-       PSI_ContextInit(&PSI_G(context), ops, psi_error);
-       PSI_ContextBuild(&PSI_G(context), PSI_G(directory));
-
        return SUCCESS;
 }
-PHP_MSHUTDOWN_FUNCTION(psi)
+
+static PHP_MSHUTDOWN_FUNCTION(psi)
 {
-       PSI_ContextDtor(&PSI_G(context));
+       psi_context_free(&PSI_G(context));
 
        UNREGISTER_INI_ENTRIES();
 
        return SUCCESS;
 }
 
-/* Remove if there's nothing to do at request start */
-/* {{{ PHP_RINIT_FUNCTION
- */
-PHP_RINIT_FUNCTION(psi)
-{
 #if defined(COMPILE_DL_PSI) && defined(ZTS)
-       ZEND_TSRMLS_CACHE_UPDATE();
-#endif
-       return SUCCESS;
-}
-/* }}} */
-
-/* Remove if there's nothing to do at request end */
-/* {{{ PHP_RSHUTDOWN_FUNCTION
- */
-PHP_RSHUTDOWN_FUNCTION(psi)
+static PHP_RINIT_FUNCTION(psi)
 {
+       ZEND_TSRMLS_CACHE_UPDATE();
        return SUCCESS;
 }
-/* }}} */
+#endif
 
-PHP_MINFO_FUNCTION(psi)
+static PHP_MINFO_FUNCTION(psi)
 {
        php_info_print_table_start();
-       php_info_print_table_header(2, "psi support", "enabled");
+       php_info_print_table_header(2, "PSI Support", "enabled");
+       php_info_print_table_row(2, "Extension Version", PHP_PSI_VERSION);
        php_info_print_table_end();
+       php_info_print_table_start();
+       php_info_print_table_header(3, "Used Library", "Compiled", "Linked");
+       php_info_print_table_row(3, "libffi",
+#ifndef PHP_PSI_LIBFFI_VERSION
+# define PHP_PSI_LIBFFI_VERSION "unknown"
+#endif
+#ifdef HAVE_LIBFFI
+                       PHP_PSI_LIBFFI_VERSION, "unknown"
+#else
+                       "disabled", "disabled"
+#endif
+       );
+       php_info_print_table_row(3, "libjit",
+#ifdef HAVE_LIBJIT
+                       "unknown", "unknown"
+#else
+                       "disabled", "disabled"
+#endif
+       );
 
        DISPLAY_INI_ENTRIES();
 }
-const zend_function_entry psi_functions[] = {
+
+static const zend_function_entry psi_functions[] = {
+       PHP_FE(psi_dump, ai_psi_dump)
+       PHP_FE(psi_validate, ai_psi_validate)
+       PHP_FE(psi_validate_string, ai_psi_validate_string)
        PHP_FE_END
 };
 
@@ -717,8 +299,12 @@ zend_module_entry psi_module_entry = {
        psi_functions,
        PHP_MINIT(psi),
        PHP_MSHUTDOWN(psi),
+#if defined(COMPILE_DL_PSI) && defined(ZTS)
        PHP_RINIT(psi),         /* Replace with NULL if there's nothing to do at request start */
-       PHP_RSHUTDOWN(psi),     /* Replace with NULL if there's nothing to do at request end */
+#else
+       NULL,
+#endif
+       NULL,
        PHP_MINFO(psi),
        PHP_PSI_VERSION,
        STANDARD_MODULE_PROPERTIES