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Userspace operator overloading #5156

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8d9c9f2
Implemented user operator overloading using a do_operation handler.
jbtronics Jan 30, 2020
d2ce1ca
Use zend_type_error to trigger an type error.
jbtronics Feb 8, 2020
60b106d
Added the possiblity to signal that the operator handler does not sup…
jbtronics Feb 9, 2020
c231a0b
Check if the arguments match the operator handler signature instead o…
jbtronics Feb 12, 2020
ed8bdd5
Removed error message about missing return type, as it can not be tri…
jbtronics Feb 12, 2020
a468b92
Use new names for shift and bitwise handlers.
jbtronics Mar 11, 2020
a8bcc2c
Added __bitwiseNot handler
jbtronics Mar 11, 2020
5285a84
Removed operator choosing based on function types.
jbtronics Mar 11, 2020
22bfe51
Fixed "use-after-scope" issue.
jbtronics Mar 11, 2020
2e0bdd2
Throw error if operator handler should receive references and init ha…
jbtronics Mar 13, 2020
5fae83b
Throw an error, if a operator magic method restrict argument types. T…
jbtronics Mar 13, 2020
ab4eeb2
Allow inheritance for operator handlers.
jbtronics Mar 20, 2020
d481d54
Added tests for operator overloading.
jbtronics Mar 20, 2020
1436df9
Preserve types of constants when overloading concat operator.
jbtronics Mar 22, 2020
eee5265
Fixed loop occuring if both operands refer to same instance.
jbtronics Mar 22, 2020
c8fdae1
Added type test for operator overloading.
jbtronics Mar 22, 2020
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4 changes: 4 additions & 0 deletions Zend/tests/add_002.phpt
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Expand Up @@ -20,10 +20,14 @@ var_dump($c);
echo "Done\n";
?>
--EXPECTF--
Notice: You have to implement the __add function in class stdClass to use this operator with an object in %sadd_002.php on line %d
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The notice doesn't make sense for non-user defined classes!
I see no point in emitting it here.

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I agree that this message does not make sense here, but I'm fine with having a notice on object to int conversion (which is undefined behavior) here.


Notice: Object of class stdClass could not be converted to number in %sadd_002.php on line %d

Exception: Unsupported operand types

Notice: You have to implement the __add function in class stdClass to use this operator with an object in %sadd_002.php on line %d

Notice: Object of class stdClass could not be converted to number in %s on line %d

Fatal error: Uncaught Error: Unsupported operand types in %s:%d
Expand Down
4 changes: 4 additions & 0 deletions Zend/tests/add_003.phpt
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Original file line number Diff line number Diff line change
Expand Up @@ -20,10 +20,14 @@ var_dump($c);
echo "Done\n";
?>
--EXPECTF--
Notice: You have to implement the __add function in class stdClass to use this operator with an object in %sadd_003.php on line %d

Notice: Object of class stdClass could not be converted to number in %sadd_003.php on line %d

Exception: Unsupported operand types

Notice: You have to implement the __add function in class stdClass to use this operator with an object in %sadd_003.php on line %d

Notice: Object of class stdClass could not be converted to number in %s on line %d

Fatal error: Uncaught Error: Unsupported operand types in %s:%d
Expand Down
16 changes: 16 additions & 0 deletions Zend/zend.h
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Original file line number Diff line number Diff line change
Expand Up @@ -140,6 +140,22 @@ struct _zend_class_entry {
zend_function *__callstatic;
zend_function *__tostring;
zend_function *__debugInfo;

/* magic functions for operator overloading */
zend_function *__add;
zend_function *__sub;
zend_function *__mul;
zend_function *__pow;
zend_function *__div;
zend_function *__concat;
zend_function *__mod;
zend_function *__shiftLeft;
zend_function *__shiftRight;
zend_function *__bitwiseOr;
zend_function *__bitwiseAnd;
zend_function *__bitwiseXor;
zend_function *__bitwiseNot;

zend_function *serialize_func;
zend_function *unserialize_func;

Expand Down
145 changes: 145 additions & 0 deletions Zend/zend_API.c
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Expand Up @@ -1967,6 +1967,110 @@ ZEND_API void zend_check_magic_method_implementation(const zend_class_entry *ce,
} else if (name_len == sizeof(ZEND_DEBUGINFO_FUNC_NAME) - 1 &&
!memcmp(lcname, ZEND_DEBUGINFO_FUNC_NAME, sizeof(ZEND_DEBUGINFO_FUNC_NAME)-1) && fptr->common.num_args != 0) {
zend_error(error_type, "Method %s::%s() cannot take arguments", ZSTR_VAL(ce->name), ZEND_DEBUGINFO_FUNC_NAME);
} else if (name_len == sizeof(ZEND_ADD_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_ADD_FUNC_NAME, sizeof(ZEND_ADD_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_ADD_FUNC_NAME);
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_ADD_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_ADD_FUNC_NAME);
}
} else if (name_len == sizeof(ZEND_SUB_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_SUB_FUNC_NAME, sizeof(ZEND_SUB_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_SUB_FUNC_NAME);
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_SUB_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_SUB_FUNC_NAME);
}
} else if (name_len == sizeof(ZEND_MUL_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_MUL_FUNC_NAME, sizeof(ZEND_MUL_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_MUL_FUNC_NAME);
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_MUL_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_MUL_FUNC_NAME);
}
} else if (name_len == sizeof(ZEND_DIV_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_DIV_FUNC_NAME, sizeof(ZEND_DIV_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_DIV_FUNC_NAME);
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_DIV_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_DIV_FUNC_NAME);
}
} else if (name_len == sizeof(ZEND_POW_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_POW_FUNC_NAME, sizeof(ZEND_POW_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_POW_FUNC_NAME);
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_POW_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_POW_FUNC_NAME);
}
} else if (name_len == sizeof(ZEND_MOD_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_MOD_FUNC_NAME, sizeof(ZEND_MOD_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_MOD_FUNC_NAME);
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_MOD_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_MOD_FUNC_NAME);
}
} else if (name_len == sizeof(ZEND_CONCAT_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_CONCAT_FUNC_NAME, sizeof(ZEND_CONCAT_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), ZEND_CONCAT_FUNC_NAME);
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_CONCAT_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), ZEND_CONCAT_FUNC_NAME);
}
} else if (name_len == sizeof(ZEND_SHIFT_LEFT_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_SHIFT_LEFT_FUNC_NAME, sizeof(ZEND_SHIFT_LEFT_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), "__shiftLeft");
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), "__shiftLeft");
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), "__shiftLeft");
}
} else if (name_len == sizeof(ZEND_SHIFT_RIGHT_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_SHIFT_RIGHT_FUNC_NAME, sizeof(ZEND_SHIFT_RIGHT_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), "__shiftRight");
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), "__shiftRight");
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), "__shiftRight");
}
} else if (name_len == sizeof(ZEND_OR_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_OR_FUNC_NAME, sizeof(ZEND_OR_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), "__bitwiseOr");
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), "__bitwiseOr");
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), "__bitwiseOr");
}
} else if (name_len == sizeof(ZEND_AND_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_AND_FUNC_NAME, sizeof(ZEND_AND_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), "__bitwiseAnd");
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints", ZSTR_VAL(ce->name), ZEND_ADD_FUNC_NAME);
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), "__bitwisAnd");
}
} else if (name_len == sizeof(ZEND_XOR_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_XOR_FUNC_NAME, sizeof(ZEND_XOR_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 2) {
zend_error(error_type, "Method %s::%s() must take exactly 2 arguments", ZSTR_VAL(ce->name), "__bitwiseXor");
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints.", ZSTR_VAL(ce->name), "__bitwiseXor");
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), "__bitwiseXor");
}
} else if (name_len == sizeof(ZEND_NOT_FUNC_NAME) - 1 && !memcmp(lcname, ZEND_NOT_FUNC_NAME, sizeof(ZEND_NOT_FUNC_NAME) - 1)) {
if (fptr->common.num_args != 1) {
zend_error(error_type, "Method %s::%s() must take exactly 1 arguments", ZSTR_VAL(ce->name), "__bitwiseNot");
} else if (fptr->common.fn_flags & ZEND_ACC_HAS_TYPE_HINTS) {
zend_error(error_type, "Method %s::%s() can not declare argument typehints.", ZSTR_VAL(ce->name), "__bitwiseNot");
} else if (QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 1) || QUICK_ARG_SHOULD_BE_SENT_BY_REF(fptr, 2)) {
zend_error(error_type, "Method %s::%s() cannot take arguments by reference", ZSTR_VAL(ce->name), "__bitwiseNot");
}
}
}
/* }}} */
Expand All @@ -1981,6 +2085,7 @@ ZEND_API int zend_register_functions(zend_class_entry *scope, const zend_functio
HashTable *target_function_table = function_table;
int error_type;
zend_function *ctor = NULL, *dtor = NULL, *clone = NULL, *__get = NULL, *__set = NULL, *__unset = NULL, *__isset = NULL, *__call = NULL, *__callstatic = NULL, *__tostring = NULL, *__debugInfo = NULL, *serialize_func = NULL, *unserialize_func = NULL;
zend_function *__add = NULL, *__sub = NULL, *__mul = NULL, *__div = NULL, *__pow = NULL, *__concat = NULL, *__mod = NULL, *__bitwiseAnd = NULL, *__bitwiseOr = NULL, *__bitwiseXor = NULL, *__bitwiseNot = NULL, *__shiftLeft = NULL, *__shiftRight = NULL;
zend_string *lowercase_name;
size_t fname_len;
const char *lc_class_name = NULL;
Expand Down Expand Up @@ -2176,6 +2281,32 @@ ZEND_API int zend_register_functions(zend_class_entry *scope, const zend_functio
scope->ce_flags |= ZEND_ACC_USE_GUARDS;
} else if (zend_string_equals_literal(lowercase_name, ZEND_DEBUGINFO_FUNC_NAME)) {
__debugInfo = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_ADD_FUNC_NAME)) {
__add = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_SUB_FUNC_NAME)) {
__sub = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_MUL_FUNC_NAME)) {
__mul = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_DIV_FUNC_NAME)) {
__div = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_POW_FUNC_NAME)) {
__pow = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_MOD_FUNC_NAME)) {
__mod = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_CONCAT_FUNC_NAME)) {
__concat = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_AND_FUNC_NAME)) {
__bitwiseAnd = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_OR_FUNC_NAME)) {
__bitwiseOr = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_XOR_FUNC_NAME)) {
__bitwiseXor = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_NOT_FUNC_NAME)) {
__bitwiseNot = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_SHIFT_LEFT_FUNC_NAME)) {
__shiftLeft = reg_function;
} else if (zend_string_equals_literal(lowercase_name, ZEND_SHIFT_RIGHT_FUNC_NAME)) {
__shiftRight = reg_function;
} else {
reg_function = NULL;
}
Expand Down Expand Up @@ -2218,6 +2349,19 @@ ZEND_API int zend_register_functions(zend_class_entry *scope, const zend_functio
scope->__debugInfo = __debugInfo;
scope->serialize_func = serialize_func;
scope->unserialize_func = unserialize_func;
scope->__add = __add;
scope->__sub = __sub;
scope->__mul = __mul;
scope->__div = __div;
scope->__pow = __pow;
scope->__mod = __mod;
scope->__bitwiseAnd = __bitwiseAnd;
scope->__bitwiseOr = __bitwiseOr;
scope->__bitwiseXor = __bitwiseXor;
scope->__bitwiseNot = __bitwiseNot;
scope->__concat = __concat;
scope->__shiftLeft = __shiftLeft;
scope->__shiftRight = __shiftRight;
if (ctor) {
ctor->common.fn_flags |= ZEND_ACC_CTOR;
if (ctor->common.fn_flags & ZEND_ACC_STATIC) {
Expand Down Expand Up @@ -2288,6 +2432,7 @@ ZEND_API int zend_register_functions(zend_class_entry *scope, const zend_functio
if (clone && (clone->common.fn_flags & ZEND_ACC_HAS_RETURN_TYPE)) {
zend_error_noreturn(E_CORE_ERROR, "%s::%s() cannot declare a return type", ZSTR_VAL(scope->name), ZSTR_VAL(clone->common.function_name));
}

efree((char*)lc_class_name);
}
return SUCCESS;
Expand Down
52 changes: 52 additions & 0 deletions Zend/zend_compile.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1832,6 +1832,19 @@ ZEND_API void zend_initialize_class_data(zend_class_entry *ce, zend_bool nullify
ce->serialize_func = NULL;
ce->unserialize_func = NULL;
ce->__debugInfo = NULL;
ce->__add = NULL;
ce->__sub = NULL;
ce->__mul = NULL;
ce->__div = NULL;
ce->__pow = NULL;
ce->__mod = NULL;
ce->__concat = NULL;
ce->__shiftLeft = NULL;
ce->__shiftRight = NULL;
ce->__bitwiseAnd = NULL;
ce->__bitwiseOr = NULL;
ce->__bitwiseXor = NULL;
ce->__bitwiseNot = NULL;
if (ce->type == ZEND_INTERNAL_CLASS) {
ce->info.internal.module = NULL;
ce->info.internal.builtin_functions = NULL;
Expand Down Expand Up @@ -6092,6 +6105,45 @@ void zend_begin_method_decl(zend_op_array *op_array, zend_string *name, zend_boo
} else if (zend_string_equals_literal(lcname, ZEND_DEBUGINFO_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__debugInfo", 0);
ce->__debugInfo = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_ADD_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__add", 1);
ce->__add = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_SUB_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__sub", 1);
ce->__sub = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_MUL_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__mul", 1);
ce->__mul = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_POW_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__pow", 1);
ce->__pow = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_DIV_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__div", 1);
ce->__div = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_CONCAT_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__concat", 1);
ce->__concat = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_MOD_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__mod", 1);
ce->__mod = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_SHIFT_LEFT_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__shiftLeft", 1);
ce->__shiftLeft = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_SHIFT_RIGHT_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__shiftRight", 1);
ce->__shiftRight = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_OR_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__bitwiseOr", 1);
ce->__bitwiseOr = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_AND_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__bitwiseAnd", 1);
ce->__bitwiseAnd = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_XOR_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__bitwiseXor", 1);
ce->__bitwiseXor = (zend_function *) op_array;
} else if (zend_string_equals_literal(lcname, ZEND_NOT_FUNC_NAME)) {
zend_check_magic_method_attr(fn_flags, "__bitwiseNot", 1);
ce->__bitwiseNot = (zend_function *) op_array;
}

zend_string_release_ex(lcname, 0);
Expand Down
16 changes: 16 additions & 0 deletions Zend/zend_compile.h
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Expand Up @@ -1041,6 +1041,22 @@ END_EXTERN_C()
#define ZEND_INVOKE_FUNC_NAME "__invoke"
#define ZEND_DEBUGINFO_FUNC_NAME "__debuginfo"


#define ZEND_ADD_FUNC_NAME "__add"
#define ZEND_SUB_FUNC_NAME "__sub"
#define ZEND_MUL_FUNC_NAME "__mul"
#define ZEND_DIV_FUNC_NAME "__div"
#define ZEND_POW_FUNC_NAME "__pow"
#define ZEND_CONCAT_FUNC_NAME "__concat"
#define ZEND_MOD_FUNC_NAME "__mod"
#define ZEND_SHIFT_LEFT_FUNC_NAME "__shiftleft"
#define ZEND_SHIFT_RIGHT_FUNC_NAME "__shiftright"
#define ZEND_OR_FUNC_NAME "__bitwiseor"
#define ZEND_AND_FUNC_NAME "__bitwiseand"
#define ZEND_XOR_FUNC_NAME "__bitwisexor"
#define ZEND_NOT_FUNC_NAME "__bitwisenot"


/* The following constants may be combined in CG(compiler_options)
* to change the default compiler behavior */

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3 changes: 3 additions & 0 deletions Zend/zend_constants.c
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Expand Up @@ -138,6 +138,9 @@ void zend_register_standard_constants(void)
REGISTER_MAIN_BOOL_CONSTANT("FALSE", 0, CONST_PERSISTENT);
REGISTER_MAIN_NULL_CONSTANT("NULL", CONST_PERSISTENT);

/** Operand Type not supported constant */
REGISTER_MAIN_NULL_CONSTANT("PHP_OPERAND_TYPES_NOT_SUPPORTED", CONST_PERSISTENT);

true_const = zend_hash_str_find_ptr(EG(zend_constants), "TRUE", sizeof("TRUE")-1);
false_const = zend_hash_str_find_ptr(EG(zend_constants), "FALSE", sizeof("FALSE")-1);
null_const = zend_hash_str_find_ptr(EG(zend_constants), "NULL", sizeof("NULL")-1);
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2 changes: 1 addition & 1 deletion Zend/zend_execute.c
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Expand Up @@ -1597,7 +1597,7 @@ static zend_never_inline void zend_assign_to_string_offset(zval *str, zval *dim,
string_len = Z_STRLEN_P(value);
c = (zend_uchar)Z_STRVAL_P(value)[0];
}

if (string_len != 1) {
if (string_len == 0) {
/* Error on empty input string */
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