X-Git-Url: https://git.m6w6.name/?p=m6w6%2Fext-psi;a=blobdiff_plain;f=src%2Fmodule.c;h=ff7353aeeac9cc272a030fd98181f1e5468718c0;hp=b8109b370e434bdba23ad0ac2c93c9eb924871fb;hb=574519ef5e3ab76f00253fad870afce7135638d1;hpb=4a49fe2f8eb21cdeabb06acec7a0395b6708d911

diff --git a/src/module.c b/src/module.c
index b8109b3..ff7353a 100644
--- a/src/module.c
+++ b/src/module.c
@@ -3,24 +3,36 @@
 #include "config.h"
 #endif
 
-#include <jit/jit.h>
-
 #include "php.h"
 #include "php_ini.h"
 #include "ext/standard/info.h"
+#include "zend_exceptions.h"
+#include "zend_constants.h"
+#include "zend_operators.h"
 
 #include "php_psi.h"
 
-#include "parser.h"
-#include "validator.h"
-#include "compiler.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.directory", "psis", PHP_INI_ALL, 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();
 
+static zend_object_handlers psi_object_handlers;
+static zend_class_entry *psi_class_entry;
+
 void psi_error(int type, const char *msg, ...)
 {
 	char buf[0x1000];
@@ -33,45 +45,1161 @@ void psi_error(int type, const char *msg, ...)
 	php_error(type, buf);
 }
 
+size_t psi_t_alignment(token_t t)
+{
+#define PSI_ALIGNOF(T) case PSI_T_## T: return ALIGNOF_## T ##_T;
+	switch (t) {
+	PSI_ALIGNOF(INT8);
+	PSI_ALIGNOF(UINT8);
+	PSI_ALIGNOF(INT16);
+	PSI_ALIGNOF(UINT16);
+	PSI_ALIGNOF(INT32);
+	PSI_ALIGNOF(UINT32);
+	PSI_ALIGNOF(INT64);
+	PSI_ALIGNOF(UINT64);
+	case PSI_T_FLOAT:
+		return ALIGNOF_FLOAT;
+	case PSI_T_DOUBLE:
+		return ALIGNOF_DOUBLE;
+	case PSI_T_POINTER:
+		return ALIGNOF_VOID_P;
+	EMPTY_SWITCH_DEFAULT_CASE();
+	}
+	return 0;
+}
+
+size_t psi_t_size(token_t t)
+{
+#define PSI_SIZEOF(T) case PSI_T_## T : return SIZEOF_## T ##_T;
+	switch (t) {
+	PSI_SIZEOF(INT8);
+	PSI_SIZEOF(UINT8);
+	PSI_SIZEOF(INT16);
+	PSI_SIZEOF(UINT16);
+	PSI_SIZEOF(INT32);
+	PSI_SIZEOF(UINT32);
+	PSI_SIZEOF(INT64);
+	PSI_SIZEOF(UINT64);
+	case PSI_T_FLOAT:
+		return SIZEOF_FLOAT;
+	case PSI_T_DOUBLE:
+		return SIZEOF_DOUBLE;
+	case PSI_T_POINTER:
+		return SIZEOF_VOID_P;
+	EMPTY_SWITCH_DEFAULT_CASE();
+	}
+	return 0;
+}
+
+size_t psi_t_align(token_t t, size_t s)
+{
+	size_t a = psi_t_alignment(t);
+	return ((s - 1) | (a - 1)) + 1;
+}
+
+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_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->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;
+}
+
+void psi_to_void(zval *return_value, set_value *set, impl_val *ret_val)
+{
+	RETVAL_NULL();
+}
+
+void psi_to_bool(zval *return_value, set_value *set, impl_val *ret_val)
+{
+	psi_to_int(return_value, set, ret_val);
+	convert_to_boolean(return_value);
+}
+
+void psi_to_int(zval *return_value, set_value *set, impl_val *ret_val)
+{
+	decl_var *var = set->vars->vars[0];
+	token_t t = real_decl_type(var->arg->type)->type;
+	impl_val *v = deref_impl_val(ret_val, var);
+
+	switch (t) {
+	case PSI_T_FLOAT:
+		RETVAL_DOUBLE((double) v->fval);
+		convert_to_long(return_value);
+		break;
+	case PSI_T_DOUBLE:
+		RETVAL_DOUBLE(v->dval);
+		convert_to_long(return_value);
+		break;
+	case PSI_T_INT8:
+		RETVAL_LONG(v->i8);
+		break;
+	case PSI_T_UINT8:
+		RETVAL_LONG(v->u8);
+		break;
+	case PSI_T_INT16:
+		RETVAL_LONG(v->i16);
+		break;
+	case PSI_T_UINT16:
+		RETVAL_LONG(v->u16);
+		break;
+	case PSI_T_INT32:
+		RETVAL_LONG(v->i32);
+		break;
+	case PSI_T_UINT32:
+#if UINT32_MAX >= ZEND_LONG_MAX
+		if (v->u32 > ZEND_LONG_MAX) {
+			char d[12] = {0};
+
+			RETVAL_STRING(zend_print_ulong_to_buf(&d[10], v->u32));
+		} else {
+#endif
+			RETVAL_LONG(v->u32);
+#if UINT32_MAX >= ZEND_LONG_MAX
+		}
+#endif
+		break;
+	case PSI_T_INT64:
+		RETVAL_LONG(v->i64);
+		break;
+	case PSI_T_UINT64:
+		if (v->u64 > ZEND_LONG_MAX) {
+			char d[24] = {0};
+
+			RETVAL_STRING(zend_print_ulong_to_buf(&d[22], v->u64));
+		} else {
+			RETVAL_LONG(v->u64);
+		}
+		break;
+	EMPTY_SWITCH_DEFAULT_CASE();
+	}
+}
+
+void psi_to_double(zval *return_value, set_value *set, impl_val *ret_val)
+{
+	decl_var *var = set->vars->vars[0];
+	token_t t = real_decl_type(var->arg->type)->type;
+	impl_val *v = deref_impl_val(ret_val, var);
+
+	switch (t) {
+	case PSI_T_FLOAT:
+		RETVAL_DOUBLE((double) v->fval);
+		break;
+	case PSI_T_DOUBLE:
+		RETVAL_DOUBLE(v->dval);
+		break;
+	case PSI_T_INT8:
+		RETVAL_DOUBLE((double) v->i8);
+		break;
+	case PSI_T_UINT8:
+		RETVAL_DOUBLE((double) v->u8);
+		break;
+	case PSI_T_INT16:
+		RETVAL_DOUBLE((double) v->i16);
+		break;
+	case PSI_T_UINT16:
+		RETVAL_DOUBLE((double) v->u16);
+		break;
+	case PSI_T_INT32:
+		RETVAL_DOUBLE((double) v->i32);
+		break;
+	case PSI_T_UINT32:
+		RETVAL_DOUBLE((double) v->u32);
+		break;
+	case PSI_T_INT64:
+		RETVAL_DOUBLE((double) v->i64);
+		break;
+	case PSI_T_UINT64:
+		RETVAL_DOUBLE((double) v->u64);
+		break;
+	EMPTY_SWITCH_DEFAULT_CASE();
+	}
+}
+
+void psi_to_string(zval *return_value, set_value *set, impl_val *ret_val)
+{
+	decl_var *var = set->vars->vars[0];
+	token_t t = real_decl_type(var->arg->type)->type;
+
+	switch (t) {
+	case PSI_T_VOID:
+	case PSI_T_INT8:
+	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) {
+				if (set->num) {
+					RETVAL_STRINGL(ret_val->ptr, psi_long_num_exp(set->num, set->outer.val));
+				} else {
+					RETVAL_STRING(ret_val->ptr);
+				}
+			} else {
+				RETVAL_EMPTY_STRING();
+			}
+		}
+		return;
+	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:
+		psi_to_int(return_value, set, ret_val);
+		break;
+	}
+	convert_to_string(return_value);
+}
+
+
+static impl_val *iterate(impl_val *val, size_t size, unsigned i, impl_val *tmp)
+{
+	memset(tmp, 0, sizeof(*tmp));
+	memcpy(tmp, ((void*) 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_INT8:
+	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;
+	}
+}
+
+void *psi_array_to_struct(decl_struct *s, HashTable *arr)
+{
+	size_t i, j = 0;
+	char *mem = ecalloc(1, s->size + s->args->count * sizeof(void *));
+
+	if (arr) for (i = 0; i < s->args->count; ++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 + darg->layout->pos, &val, darg->layout->len);
+			if (tmp) {
+				((void **)(mem + s->size))[j++] = tmp;
+			}
+		}
+	}
+	return mem;
+}
+
+void psi_to_array(zval *return_value, set_value *set, impl_val *r_val)
+{
+	size_t i;
+	decl_var *var = set->vars->vars[0];
+	token_t t = real_decl_type(var->arg->type)->type;
+	impl_val tmp, *ret_val = deref_impl_val(r_val, var);
+
+	if ((intptr_t) ret_val->ptr <= (intptr_t) 0) {
+		RETURN_NULL();
+	}
+
+	array_init(return_value);
+
+	if (t == PSI_T_STRUCT) {
+		// decl_struct *s = real_decl_type(var->arg->type)->strct;
+
+		if (set->count) {
+			/* explicit member casts */
+			for (i = 0; i < set->count; ++i) {
+				set_value *sub_set = set->inner[i];
+				decl_var *sub_var = sub_set->vars->vars[0];
+
+				sub_set->outer.val = r_val;
+
+				if (sub_var->arg) {
+					impl_val *tmp = NULL, *val;
+					zval ztmp;
+
+					val = deref_impl_val(struct_member_ref(sub_var->arg, ret_val, &tmp), sub_var);
+					sub_set->func->handler(&ztmp, sub_set, val);
+					add_assoc_zval(return_value, sub_var->name, &ztmp);
+
+					if (tmp) {
+						free(tmp);
+					}
+				}
+			}
+		}
+		return;
+	}
+
+	if (var->arg->var->array_size) {
+		/* to_array(foo[NUMBER]) */
+		for (i = 0; i < var->arg->var->array_size; ++i) {
+			size_t size = psi_t_size(var->arg->var->pointer_level > 1 ? PSI_T_POINTER : t);
+			impl_val *ptr = iterate(ret_val, size, i, &tmp);
+			zval ele;
+
+			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);
+		}
+		return;
+	} else if (set->num) {
+		/* to_array(arr_var, num_expr, to_int(*arr_var))
+		 */
+		zval ele;
+		zend_long i, n = psi_long_num_exp(set->num, set->outer.val);
+
+		for (i = 0; i < n; ++i) {
+			size_t size = psi_t_size(var->arg->var->pointer_level ? PSI_T_POINTER : t);
+			impl_val *ptr = iterate(ret_val, size, i, &tmp);
+
+			set->inner[0]->func->handler(&ele, set->inner[0], ptr);
+			add_next_index_zval(return_value, &ele);
+		}
+	} else {
+		ZEND_ASSERT(0);
+	}
+}
+
+void psi_to_object(zval *return_value, set_value *set, impl_val *r_val)
+{
+	decl_var *var = set->vars->vars[0];
+	impl_val *ret_val = deref_impl_val(r_val, var);
+	psi_object *obj;
+
+	if ((intptr_t) ret_val->ptr > (intptr_t) 0) {
+		object_init_ex(return_value, psi_class_entry);
+		obj = PSI_OBJ(return_value, NULL);
+		obj->data = ret_val->ptr;
+	} else {
+		RETVAL_NULL();
+	}
+}
+
+static inline ZEND_RESULT_CODE psi_parse_args(zend_execute_data *execute_data, impl *impl)
+{
+	size_t i;
+	zval *zarg = ZEND_CALL_ARG(execute_data, 0);
+	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 {
+			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) {
+		iarg = impl->func->args->args[i];
+
+		if (i < EX_NUM_ARGS()) {
+		} else if (iarg->def) {
+			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 *));
+	return mem;
+}
+
+static inline ZEND_RESULT_CODE psi_let_val(token_t let_func, impl_arg *iarg, impl_val *arg_val, decl_struct *strct, void **to_free)
+{
+	switch (let_func) {
+	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) {
+			arg_val->lval = iarg->val.zend.lval;
+		} else {
+			arg_val->lval = zval_get_long(iarg->_zv);
+		}
+		break;
+	case PSI_T_FLOATVAL:
+		if (iarg->type->type == PSI_T_FLOAT || iarg->type->type == PSI_T_DOUBLE) {
+			arg_val->dval = iarg->val.dval;
+		} else {
+			arg_val->dval = zval_get_double(iarg->_zv);
+		}
+		break;
+	case PSI_T_PATHVAL:
+	case PSI_T_STRVAL:
+		if (iarg->type->type == PSI_T_STRING) {
+			if (iarg->val.zend.str) {
+				arg_val->ptr = estrdup(iarg->val.zend.str->val);
+				*to_free = arg_val->ptr;
+			} else {
+				arg_val->ptr = "";
+			}
+		} else {
+			zend_string *zs = zval_get_string(iarg->_zv);
+			arg_val->ptr = estrdup(zs->val);
+			*to_free = arg_val->ptr;
+			zend_string_release(zs);
+		}
+		if (PSI_T_PATHVAL == let_func) {
+			if (SUCCESS != php_check_open_basedir(arg_val->ptr)) {
+				efree(arg_val->ptr);
+				return FAILURE;
+			}
+		}
+		break;
+	case PSI_T_STRLEN:
+		if (iarg->type->type == PSI_T_STRING) {
+			if (iarg->val.zend.str) {
+				arg_val->lval = iarg->val.zend.str->len;
+			} else {
+				arg_val->lval = 0;
+			}
+		} 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) {
+			arg_val->ptr = psi_array_to_struct(strct, HASH_OF(iarg->_zv));
+			*to_free = arg_val->ptr;
+		}
+		break;
+	case PSI_T_OBJVAL:
+		if (iarg->type->type == PSI_T_OBJECT) {
+			psi_object *obj;
+
+			if (!instanceof_function(Z_OBJCE_P(iarg->_zv), psi_class_entry)) {
+				return FAILURE;
+			}
+
+			obj = PSI_OBJ(iarg->_zv, NULL);
+			arg_val->ptr = obj->data;
+		}
+		break;
+	EMPTY_SWITCH_DEFAULT_CASE();
+	}
+	return SUCCESS;
+}
+
+static inline void *psi_do_let(let_stmt *let)
+{
+	decl_arg *darg = let->var->arg;
+	impl_val *arg_val = darg->ptr;
+	impl_arg *iarg;
+
+	switch (let->val ? let->val->kind : PSI_LET_NULL) {
+	case PSI_LET_TMP:
+		arg_val->ptr = deref_impl_val(let->val->data.var->arg->val.ptr, let->var);
+		break;
+	case PSI_LET_NULL:
+		if (darg->var->array_size) {
+			arg_val->ptr = ecalloc(darg->var->array_size, sizeof(*arg_val));
+			darg->mem = arg_val->ptr;
+		} else {
+			memset(arg_val, 0, sizeof(*arg_val));
+		}
+		break;
+	case PSI_LET_CALLOC:
+		arg_val->ptr = psi_do_calloc(let->val->data.alloc);
+		darg->mem = arg_val->ptr;
+		break;
+	case PSI_LET_NUMEXP:
+		arg_val->zend.lval = psi_long_num_exp(let->val->data.num, NULL);
+		break;
+	case PSI_LET_FUNC:
+		iarg = let->val->data.func->arg;
+
+		if (SUCCESS != psi_let_val(let->val->data.func->type, iarg, darg->ptr, real_decl_type(darg->type)->strct, &darg->mem)) {
+			return NULL;
+		}
+	}
+
+	if (let->val && let->val->flags.one.is_reference) {
+		return let->ptr = &darg->ptr;
+	} else {
+		return let->ptr = darg->ptr;
+	}
+}
+
+static inline void psi_do_set(zval *return_value, set_value *set)
+{
+	zval_dtor(return_value);
+	set->func->handler(return_value, set, set->vars->vars[0]->arg->ptr);
+}
+
+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;
+
+			f->decl->call.args[j] = &darg->val;
+		}
+
+		/* FIXME: check in validate_* that free functions return scalar */
+		PSI_ContextCall(&PSI_G(context), &f->decl->call, NULL);
+	}
+}
+
+static inline void psi_do_clean(impl *impl)
+{
+	size_t i;
+
+	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;
+		}
+	}
+
+	if (impl->decl->args) for (i = 0; i < impl->decl->args->count; ++i) {
+		decl_arg *darg = impl->decl->args->args[i];
+
+		if (darg->mem) {
+			decl_type *type = real_decl_type(darg->type);
+
+			if (type->type == PSI_T_STRUCT) {
+				void **ptr = (void **) ((char *) darg->mem + type->strct->size);
+
+				while (*ptr) {
+					efree(*ptr++);
+				}
+			}
+			efree(darg->mem);
+			darg->mem = NULL;
+		}
+	}
+
+	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 int psi_calc_num_exp_value(num_exp *exp, impl_val *strct, impl_val *res) {
+	impl_val *ref, *tmp = NULL;
+
+	switch (exp->t) {
+	case PSI_T_NUMBER:
+		switch (is_numeric_string(exp->u.numb, strlen(exp->u.numb), (zend_long *) res, (double *) res, 0)) {
+		case IS_LONG:
+			return PSI_T_INT64;
+		case IS_DOUBLE:
+			return PSI_T_DOUBLE;
+		}
+		break;
+
+	case PSI_T_NSNAME:
+		switch (exp->u.cnst->type->type) {
+		case PSI_T_INT:
+			res->i64 = zend_get_constant_str(exp->u.cnst->name, strlen(exp->u.cnst->name))->value.lval;
+			return PSI_T_INT64;
+		case PSI_T_FLOAT:
+			res->dval = zend_get_constant_str(exp->u.cnst->name, strlen(exp->u.cnst->name))->value.dval;
+			return PSI_T_DOUBLE;
+		default:
+			return 0;
+		}
+		break;
+
+	case PSI_T_NAME:
+		if (strct) {
+			ref = struct_member_ref(exp->u.dvar->arg, strct, &tmp);
+		} else {
+			ref = exp->u.dvar->arg->ptr;
+		}
+		switch (real_decl_type(exp->u.dvar->arg->type)->type) {
+		case PSI_T_INT8:
+		case PSI_T_UINT8:
+		case PSI_T_INT16:
+		case PSI_T_UINT16:
+		case PSI_T_INT32:
+		case PSI_T_UINT32:
+		case PSI_T_INT64:
+		case PSI_T_UINT64:
+			memcpy(res, deref_impl_val(ref, exp->u.dvar), sizeof(*res));
+			if (tmp) {
+				free(tmp);
+			}
+			return real_decl_type(exp->u.dvar->arg->type)->type;
+
+		case PSI_T_FLOAT:
+		case PSI_T_DOUBLE:
+			memcpy(res, deref_impl_val(ref, exp->u.dvar), sizeof(*res));
+			if (tmp) {
+				free(tmp);
+			}
+			return real_decl_type(exp->u.dvar->arg->type)->type;
+
+		EMPTY_SWITCH_DEFAULT_CASE();
+		}
+		break;
+
+	EMPTY_SWITCH_DEFAULT_CASE();
+	}
+	return  0;
+}
+
+int psi_calc_num_exp(num_exp *exp, impl_val *strct, impl_val *res) {
+	impl_val num = {0};
+	int num_type = psi_calc_num_exp_value(exp, strct, &num);
+
+	if (exp->operand) {
+		impl_val tmp = {0};
+		int tmp_type = psi_calc_num_exp(exp->operand, strct, &tmp);
+
+		return exp->calculator(num_type, &num, tmp_type, &tmp, res);
+	}
+
+	memcpy(res, &num, sizeof(*res));
+	return num_type;
+}
+
+#define PRIfval "f"
+#define PRIdval "lf"
+
+#define PSI_CALC_OP(var) do { \
+	const char *fmt = "calc %" PRI##var ", %" PRI##var ": %" PRI##var "\n"; \
+	res->var = PSI_CALC(v1->var, v2->var); \
+	if (!res->var) fprintf(stderr, fmt, v1->var, v2->var, res->var); \
+} while (0)
+#define PSI_CALC_OP2(vres, var1, var2) do { \
+	const char *fmt = "calc %" PRI##var1 ", %" PRI##var2 ": %" PRI##vres "\n"; \
+	res->vres = PSI_CALC(v1->var1, v2->var2); \
+	if (!res->vres) fprintf(stderr, fmt, v1->var1, v2->var2, res->vres); \
+} while(0)
+#define PSI_CALC_FN(op) int psi_calc_##op(int t1, impl_val *v1, int t2, impl_val *v2, impl_val *res) \
+{ \
+	if (t1 == t2) { \
+		switch (t1) { \
+		case PSI_T_FLOAT:	PSI_CALC_OP(fval);	break; \
+		case PSI_T_DOUBLE:	PSI_CALC_OP(dval);	break; \
+		case PSI_T_INT8:	PSI_CALC_OP(i8);	break; \
+		case PSI_T_UINT8:	PSI_CALC_OP(u8);	break; \
+		case PSI_T_INT16:	PSI_CALC_OP(i16);	break; \
+		case PSI_T_UINT16:	PSI_CALC_OP(u16);	break; \
+		case PSI_T_INT32:	PSI_CALC_OP(i32);	break; \
+		case PSI_T_UINT32:	PSI_CALC_OP(u32);	break; \
+		case PSI_T_INT64:	PSI_CALC_OP(i64);	break; \
+		case PSI_T_UINT64:	PSI_CALC_OP(u64);	break; \
+		EMPTY_SWITCH_DEFAULT_CASE(); \
+		} \
+		return t1; \
+	} else if (t1 == PSI_T_DOUBLE) { \
+		switch (t2) { \
+		case PSI_T_FLOAT:	PSI_CALC_OP2(dval, dval, fval);	break; \
+		case PSI_T_INT8:	PSI_CALC_OP2(dval, dval, i8);	break; \
+		case PSI_T_UINT8:	PSI_CALC_OP2(dval, dval, u8);	break; \
+		case PSI_T_INT16:	PSI_CALC_OP2(dval, dval, i16);	break; \
+		case PSI_T_UINT16:	PSI_CALC_OP2(dval, dval, u16);	break; \
+		case PSI_T_INT32:	PSI_CALC_OP2(dval, dval, i32);	break; \
+		case PSI_T_UINT32:	PSI_CALC_OP2(dval, dval, u32);	break; \
+		case PSI_T_INT64:	PSI_CALC_OP2(dval, dval, i64);	break; \
+		case PSI_T_UINT64:	PSI_CALC_OP2(dval, dval, u64);	break; \
+		EMPTY_SWITCH_DEFAULT_CASE(); \
+		} \
+		return t1; \
+	} else if (t2 == PSI_T_DOUBLE) { \
+		switch (t1) { \
+		case PSI_T_FLOAT:	PSI_CALC_OP2(dval, fval, dval);	break; \
+		case PSI_T_INT8:	PSI_CALC_OP2(dval, i8, dval);	break; \
+		case PSI_T_UINT8:	PSI_CALC_OP2(dval, u8, dval);	break; \
+		case PSI_T_INT16:	PSI_CALC_OP2(dval, i16, dval);	break; \
+		case PSI_T_UINT16:	PSI_CALC_OP2(dval, u16, dval);	break; \
+		case PSI_T_INT32:	PSI_CALC_OP2(dval, i32, dval);	break; \
+		case PSI_T_UINT32:	PSI_CALC_OP2(dval, u32, dval);	break; \
+		case PSI_T_INT64:	PSI_CALC_OP2(dval, i64, dval);	break; \
+		case PSI_T_UINT64:	PSI_CALC_OP2(dval, u64, dval);	break; \
+		EMPTY_SWITCH_DEFAULT_CASE(); \
+		} \
+		return t2; \
+	} else if (t1 == PSI_T_FLOAT) { \
+		switch (t2) { \
+		case PSI_T_DOUBLE:	PSI_CALC_OP2(dval, fval, dval);	return t2; \
+		case PSI_T_INT8:	PSI_CALC_OP2(fval, fval, i8);	break; \
+		case PSI_T_UINT8:	PSI_CALC_OP2(fval, fval, u8);	break; \
+		case PSI_T_INT16:	PSI_CALC_OP2(fval, fval, i16);	break; \
+		case PSI_T_UINT16:	PSI_CALC_OP2(fval, fval, u16);	break; \
+		case PSI_T_INT32:	PSI_CALC_OP2(fval, fval, i32);	break; \
+		case PSI_T_UINT32:	PSI_CALC_OP2(fval, fval, u32);	break; \
+		case PSI_T_INT64:	PSI_CALC_OP2(fval, fval, i64);	break; \
+		case PSI_T_UINT64:	PSI_CALC_OP2(fval, fval, u64);	break; \
+		EMPTY_SWITCH_DEFAULT_CASE(); \
+		} \
+		return t1; \
+	} else if (t2 == PSI_T_FLOAT) { \
+		switch (t1) { \
+		case PSI_T_DOUBLE:	PSI_CALC_OP2(dval, dval, fval);	return t1; \
+		case PSI_T_INT8:	PSI_CALC_OP2(fval, i8, fval);	break; \
+		case PSI_T_UINT8:	PSI_CALC_OP2(fval, u8, fval);	break; \
+		case PSI_T_INT16:	PSI_CALC_OP2(fval, i16, fval);	break; \
+		case PSI_T_UINT16:	PSI_CALC_OP2(fval, u16, fval);	break; \
+		case PSI_T_INT32:	PSI_CALC_OP2(fval, i32, fval);	break; \
+		case PSI_T_UINT32:	PSI_CALC_OP2(fval, u32, fval);	break; \
+		case PSI_T_INT64:	PSI_CALC_OP2(fval, i64, fval);	break; \
+		case PSI_T_UINT64:	PSI_CALC_OP2(fval, u64, fval);	break; \
+		EMPTY_SWITCH_DEFAULT_CASE(); \
+		} \
+		return t2; \
+	} else { \
+		int64_t sval1 = v1->i64, sval2 = v2->i64; \
+		uint64_t uval1 = v1->u64, uval2 = v2->u64; \
+		switch (t1) { \
+		case PSI_T_INT8:	sval1 >>= 8; \
+		case PSI_T_INT16:	sval1 >>= 8; \
+		case PSI_T_INT32:	sval1 >>= 8; \
+		case PSI_T_INT64: \
+			switch (t2) { \
+			case PSI_T_INT8:	sval2 >>= 8; \
+			case PSI_T_INT16:	sval2 >>= 8; \
+			case PSI_T_INT32:	sval2 >>= 8; \
+			case PSI_T_INT64: \
+				res->i64 = PSI_CALC(sval1 , sval2); \
+				return PSI_T_INT64; \
+			case PSI_T_UINT8:	uval2 >>= 8; \
+			case PSI_T_UINT16:	uval2 >>= 8; \
+			case PSI_T_UINT32:	uval2 >>= 8; \
+			case PSI_T_UINT64: \
+				res->i64 = PSI_CALC(sval1, uval2); \
+				return PSI_T_INT64; \
+			} \
+			break; \
+		case PSI_T_UINT8:	uval1 >>= 8; \
+		case PSI_T_UINT16:	uval1 >>= 8; \
+		case PSI_T_UINT32:	uval1 >>= 8; \
+		case PSI_T_UINT64: \
+			switch (t2) { \
+			case PSI_T_INT8:	sval2 >>= 8; \
+			case PSI_T_INT16:	sval2 >>= 8; \
+			case PSI_T_INT32:	sval2 >>= 8; \
+			case PSI_T_INT64: \
+				res->i64 = PSI_CALC(uval1, sval2); \
+				return PSI_T_INT64; \
+			case PSI_T_UINT8:	uval2 >>= 8; \
+			case PSI_T_UINT16:	uval2 >>= 8; \
+			case PSI_T_UINT32:	uval2 >>= 8; \
+			case PSI_T_UINT64: \
+				res->u64 = PSI_CALC(uval1, uval2); \
+				return PSI_T_UINT64; \
+			} \
+			break; \
+		} \
+	} \
+	ZEND_ASSERT(0); \
+	return 0; \
+}
+
+#undef PSI_CALC
+#define PSI_CALC(var1, var2) (var1) + (var2)
+PSI_CALC_FN(add)
+#undef PSI_CALC
+#define PSI_CALC(var1, var2) (var1) * (var2)
+PSI_CALC_FN(mul)
+#undef PSI_CALC
+#define PSI_CALC(var1, var2) (var1) - (var2)
+PSI_CALC_FN(sub)
+#undef PSI_CALC
+#define PSI_CALC(var1, var2) (var1) / (var2)
+PSI_CALC_FN(div)
+
+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->ptr;
+	}
+}
+
+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 let_fn, vatype = va->name->type->type;
+
+		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_T_BOOLVAL;	break;
+		case PSI_T_INT:		let_fn = PSI_T_INTVAL;	break;
+		case PSI_T_FLOAT:
+		case PSI_T_DOUBLE:	let_fn = PSI_T_FLOATVAL;break;
+		case PSI_T_STRING:	let_fn = PSI_T_STRVAL;	break;
+		EMPTY_SWITCH_DEFAULT_CASE();
+		}
+
+		va->types[i] = vatype;
+		psi_let_val(let_fn, vaarg, &va->values[i], NULL, &to_free);
+
+		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;
+}
+
+void 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;
+	}
+
+	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;
+		}
+	}
+
+	if (impl->decl->args) {
+		psi_do_args(impl);
+
+		if (impl->func->args->vararg.args) {
+			va = psi_do_varargs(impl);
+		}
+	}
+
+	PSI_ContextCall(&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);
+}
+
+static void psi_object_free(zend_object *o)
+{
+	psi_object *obj = PSI_OBJ(NULL, o);
+
+	if (obj->data) {
+		// free(obj->data);
+		obj->data = NULL;
+	}
+	zend_object_std_dtor(o);
+}
+
+static zend_object *psi_object_init(zend_class_entry *ce)
+{
+	psi_object *o = ecalloc(1, sizeof(*o) + zend_object_properties_size(ce));
+
+	zend_object_std_init(&o->std, ce);
+	object_properties_init(&o->std, ce);
+	o->std.handlers = &psi_object_handlers;
+	return &o->std;
+}
+
 PHP_MINIT_FUNCTION(psi)
 {
+	PSI_ContextOps *ops = NULL;
+	zend_class_entry ce = {0};
+
 	REGISTER_INI_ENTRIES();
 
-	PSI_ContextInit(&PSI_G(context), PSI_Libjit(), psi_error);
+	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;
+
+	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;
+
+#ifdef HAVE_LIBJIT
+	if (!strcasecmp(PSI_G(engine), "jit")) {
+		ops = PSI_Libjit();
+	} else
+#endif
+#ifdef HAVE_LIBFFI
+		ops = PSI_Libffi();
+#endif
+
+	if (!ops) {
+		php_error(E_WARNING, "No PSI engine found");
+		return FAILURE;
+	}
+
+	PSI_ContextInit(&PSI_G(context), ops, psi_error);
 	PSI_ContextBuild(&PSI_G(context), PSI_G(directory));
 
+	if (psi_check_env("PSI_DUMP")) {
+		PSI_ContextDump(&PSI_G(context), STDOUT_FILENO);
+	}
+
 	return SUCCESS;
 }
+
 PHP_MSHUTDOWN_FUNCTION(psi)
 {
-	jit_context_t ctx = PSI_G(context);
-	jit_context_destroy(ctx);
+	PSI_ContextDtor(&PSI_G(context));
 
 	UNREGISTER_INI_ENTRIES();
 
 	return SUCCESS;
 }
 
-/* Remove if there's nothing to do at request start */
-/* {{{ PHP_RINIT_FUNCTION
- */
+#if defined(COMPILE_DL_PSI) && defined(ZTS)
 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)
-{
-	return SUCCESS;
-}
-/* }}} */
+#endif
 
 PHP_MINFO_FUNCTION(psi)
 {
@@ -91,8 +1219,12 @@ 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