X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=src%2Fmodule.c;h=b06e0bd32a8d255b2cb50bc0c01c7e5b3efa0e5f;hb=514614a6765283ca9c74a48b0f6c6fd24d6fd8e2;hp=b5c8d2ba450205fdc6c2e05eef9041773ef769bf;hpb=f18f62c084371e0da16305db4de27bfa124934c1;p=m6w6%2Fext-psi

diff --git a/src/module.c b/src/module.c
index b5c8d2b..b06e0bd 100644
--- a/src/module.c
+++ b/src/module.c
@@ -6,6 +6,9 @@
 #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"
@@ -28,6 +31,9 @@ PHP_INI_BEGIN()
 	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];
@@ -42,99 +48,46 @@ void psi_error(int type, const char *msg, ...)
 
 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); \
-}
+#define PSI_ALIGNOF(T) case PSI_T_## T: return ALIGNOF_## T ##_T;
 	switch (t) {
-	case PSI_T_INT8:
-		PSI_TAS_CASE(int8_t);
-		break;
-	case PSI_T_UINT8:
-		PSI_TAS_CASE(uint8_t);
-		break;
-	case PSI_T_INT16:
-		PSI_TAS_CASE(int16_t);
-		break;
-	case PSI_T_UINT16:
-		PSI_TAS_CASE(uint16_t);
-		break;
-	case PSI_T_INT32:
-		PSI_TAS_CASE(int32_t);
-		break;
-	case PSI_T_UINT32:
-		PSI_TAS_CASE(uint32_t);
-		break;
-	case PSI_T_INT64:
-		PSI_TAS_CASE(int64_t);
-		break;
-	case PSI_T_UINT64:
-		PSI_TAS_CASE(uint64_t);
-		break;
+	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:
-		PSI_TAS_CASE(float);
-		break;
+		return ALIGNOF_FLOAT;
 	case PSI_T_DOUBLE:
-		PSI_TAS_CASE(double);
-		break;
+		return ALIGNOF_DOUBLE;
 	case PSI_T_POINTER:
-		{
-			PSI_TAS_P(char);
-			PSI_TAS_C(char_pointer);
-		}
-		break;
+		return ALIGNOF_VOID_P;
 	EMPTY_SWITCH_DEFAULT_CASE();
 	}
-
-	return align;
 }
 
 size_t psi_t_size(token_t t)
 {
-	size_t size;
-
+#define PSI_SIZEOF(T) case PSI_T_## T : return SIZEOF_## T ##_T;
 	switch (t) {
-	case PSI_T_INT8:
-	case PSI_T_UINT8:
-		size = 1;
-		break;
-	case PSI_T_INT16:
-	case PSI_T_UINT16:
-		size = 2;
-		break;
-	case PSI_T_INT:
-		size = sizeof(int);
-		break;
-	case PSI_T_INT32:
-	case PSI_T_UINT32:
-		size = 4;
-		break;
-	case PSI_T_INT64:
-	case PSI_T_UINT64:
-		size = 8;
-		break;
+	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:
-		size = sizeof(float);
-		break;
+		return SIZEOF_FLOAT;
 	case PSI_T_DOUBLE:
-		size = sizeof(double);
-		break;
+		return SIZEOF_DOUBLE;
 	case PSI_T_POINTER:
-		size = sizeof(char *);
-		break;
+		return SIZEOF_VOID_P;
 	EMPTY_SWITCH_DEFAULT_CASE();
 	}
-	return size;
 }
 
 size_t psi_t_align(token_t t, size_t s)
@@ -204,6 +157,11 @@ size_t psi_num_min_args(impl *impl)
 	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);
@@ -282,9 +240,31 @@ void psi_to_double(zval *return_value, set_value *set, impl_val *ret_val)
 	case PSI_T_DOUBLE:
 		RETVAL_DOUBLE(v->dval);
 		break;
-	default:
-		RETVAL_DOUBLE((double) v->lval);
+	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();
 	}
 }
 
@@ -294,6 +274,7 @@ void psi_to_string(zval *return_value, set_value *set, impl_val *ret_val)
 	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) {
@@ -314,7 +295,7 @@ void psi_to_string(zval *return_value, set_value *set, impl_val *ret_val)
 		RETVAL_DOUBLE(deref_impl_val(ret_val, var)->dval);
 		break;
 	default:
-		RETVAL_LONG(deref_impl_val(ret_val, var)->lval);
+		psi_to_int(return_value, set, ret_val);
 		break;
 	}
 	convert_to_string(return_value);
@@ -378,16 +359,6 @@ void *psi_array_to_struct(decl_struct *s, HashTable *arr)
 	return mem;
 }
 
-static inline impl_val *struct_member_ref(decl_arg *set_arg, impl_val *struct_ptr, impl_val **to_free) {
-	void *ptr = (char *) struct_ptr->ptr + set_arg->layout->pos;
-	impl_val *val = enref_impl_val(ptr, set_arg->var);
-
-	if (val != ptr) {
-		*to_free = val;
-	}
-
-	return val;
-}
 void psi_to_array(zval *return_value, set_value *set, impl_val *r_val)
 {
 	size_t i;
@@ -450,12 +421,12 @@ void psi_to_array(zval *return_value, set_value *set, impl_val *r_val)
 	} else if (set->vars->count > 1) {
 		/* to_array(arr_var, cnt_var[, cnt_var...], to_int(*arr_var))
 		 * check for length in second var
-		 */
+		 * /
 		size_t count = 0;
 		zval ele;
 
 		if (set->outer.set) {
-			/* struct */
+			/* struct *//*
 			for (i = 1; i < set->vars->count; ++i) {
 				impl_val *tmp = NULL, *cnt_val;
 				decl_var *cnt_var = set->vars->vars[i];
@@ -475,21 +446,56 @@ void psi_to_array(zval *return_value, set_value *set, impl_val *r_val)
 			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 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 (ret_val->ptr) {
+		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)
 {
 	impl_arg *iarg;
+	zend_error_handling zeh;
+
+	zend_replace_error_handling(EH_THROW, zend_exception_get_default(), &zeh);
 
 	if (!impl->func->args->count) {
-		return zend_parse_parameters_none();
+		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->count)
@@ -528,7 +534,9 @@ static inline ZEND_RESULT_CODE psi_parse_args(zend_execute_data *execute_data, i
 			}
 		} else if (PSI_T_ARRAY == iarg->type->type) {
 			/* handled as _zv in let or set */
-			Z_PARAM_PROLOGUE(0);
+			Z_PARAM_ARRAY_EX(iarg->_zv, 1, 0);
+		} else if (PSI_T_OBJECT == iarg->type->type) {
+			Z_PARAM_OBJECT_EX(iarg->_zv, 1, 0);
 		} else {
 			error_code = ZPP_ERROR_FAILURE;
 			break;
@@ -537,24 +545,21 @@ static inline ZEND_RESULT_CODE psi_parse_args(zend_execute_data *execute_data, i
 		if (_i < _max_num_args) {
 			goto nextarg;
 		}
-	ZEND_PARSE_PARAMETERS_END_EX(return FAILURE);
+	ZEND_PARSE_PARAMETERS_END_EX(
+		zend_restore_error_handling(&zeh);
+		return FAILURE
+	);
 
+	zend_restore_error_handling(&zeh);
 	return SUCCESS;
 }
 
 static inline 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 at least one NULL pointer after the struct */
-		size = type->strct->size + sizeof(void *);
-	} else {
-		size = psi_t_size(type->type);
-	}
-
-	return ecalloc(alloc->n, size);
+	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 void *psi_do_let(decl_arg *darg)
@@ -596,6 +601,7 @@ static inline void *psi_do_let(decl_arg *darg)
 				arg_val->lval = zval_get_long(iarg->_zv);
 			}
 			break;
+		case PSI_T_PATHVAL:
 		case PSI_T_STRVAL:
 			if (iarg->type->type == PSI_T_STRING) {
 				arg_val->ptr = estrdup(iarg->val.zend.str->val);
@@ -607,6 +613,12 @@ static inline void *psi_do_let(decl_arg *darg)
 				darg->let->mem = arg_val->ptr;
 				zend_string_release(zs);
 			}
+			if (PSI_T_PATHVAL == darg->let->val->func->type) {
+				if (SUCCESS != php_check_open_basedir(arg_val->ptr)) {
+					efree(arg_val->ptr);
+					return NULL;
+				}
+			}
 			break;
 		case PSI_T_STRLEN:
 			if (iarg->type->type == PSI_T_STRING) {
@@ -630,6 +642,18 @@ static inline void *psi_do_let(decl_arg *darg)
 				}
 			}
 			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 NULL;
+				}
+
+				obj = PSI_OBJ(iarg->_zv, NULL);
+				arg_val->ptr = obj->data;
+			}
+			break;
 		EMPTY_SWITCH_DEFAULT_CASE();
 		}
 	}
@@ -709,6 +733,232 @@ static inline void psi_do_clean(impl *impl)
 	}
 }
 
+static inline int psi_calc_num_exp_value(num_exp *exp, impl_val *ref, impl_val *res) {
+	impl_val *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 (exp->u.dvar->arg->let) {
+			ref = exp->u.dvar->arg->let->ptr;
+		} else {
+			ref = struct_member_ref(exp->u.dvar->arg, ref, &tmp);
+		}
+		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 *ref, impl_val *res) {
+	impl_val num = {0};
+	int num_type = psi_calc_num_exp_value(exp, ref, &num);
+
+	if (exp->operand) {
+		impl_val tmp = {0};
+		int tmp_type = psi_calc_num_exp(exp->operand, ref, &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); \
+	/*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); \
+	/*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)
+
 void psi_call(zend_execute_data *execute_data, zval *return_value, impl *impl)
 {
 	impl_val ret_val;
@@ -722,7 +972,9 @@ void psi_call(zend_execute_data *execute_data, zval *return_value, impl *impl)
 		for (i = 0; i < impl->decl->args->count; ++i) {
 			decl_arg *darg = impl->decl->args->args[i];
 
-			impl->decl->call.args[i] = psi_do_let(darg);
+			if (!(impl->decl->call.args[i] = psi_do_let(darg))) {
+				goto cleanup;
+			}
 		}
 	}
 
@@ -744,16 +996,52 @@ void psi_call(zend_execute_data *execute_data, zval *return_value, impl *impl)
 
 		psi_do_free(fre);
 	}
+	psi_do_clean(impl);
+	return;
 
+cleanup:
+	memset(&ret_val, 0, sizeof(ret_val));
+	psi_do_return(return_value, impl->stmts->ret.list[0], &ret_val);
 	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();
 
+	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();
@@ -771,7 +1059,7 @@ PHP_MINIT_FUNCTION(psi)
 	PSI_ContextInit(&PSI_G(context), ops, psi_error);
 	PSI_ContextBuild(&PSI_G(context), PSI_G(directory));
 
-	if (getenv("PSI_DUMP")) {
+	if (psi_check_env("PSI_DUMP")) {
 		PSI_ContextDump(&PSI_G(context), STDOUT_FILENO);
 	}