gron Sun, 04 Mar 2012 18:26:11 +0000
Revision: http://svn.php.net/viewvc?view=revision&revision=323891
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Log:
Fixed Bug #60717 (Order of traits in use statement can cause a fatal error)
# Compatibility is now correctly checked in both directions.
# Introduced helper method for the test.
Bug: https://bugs.php.net/60717 (Assigned) Order of traits in use statement can
cause a fatal error
Changed paths:
U php/php-src/branches/PHP_5_4/NEWS
A php/php-src/branches/PHP_5_4/Zend/tests/traits/bug60717.phpt
U
php/php-src/branches/PHP_5_4/Zend/tests/traits/bugs/abstract-methods06.phpt
U php/php-src/branches/PHP_5_4/Zend/zend_compile.c
A php/php-src/trunk/Zend/tests/traits/bug60717.phpt
U php/php-src/trunk/Zend/tests/traits/bugs/abstract-methods06.phpt
U php/php-src/trunk/Zend/zend_compile.c
Modified: php/php-src/branches/PHP_5_4/NEWS
===================================================================
--- php/php-src/branches/PHP_5_4/NEWS 2012-03-04 17:21:16 UTC (rev 323890)
+++ php/php-src/branches/PHP_5_4/NEWS 2012-03-04 18:26:11 UTC (rev 323891)
@@ -14,6 +14,8 @@
- Core:
. Fixed bug #60573 (type hinting with "self" keyword causes weird errors).
(Laruence)
+ . Fixed bug #60717 (Order of traits in use statement can cause a fatal
+ error). (Stefan)
. Fixed bug #60801 (strpbrk() mishandles NUL byte). (Adam)
. Fixed bug #60978 (exit code incorrect). (Laruence)
. Fixed bug #61000 (Exceeding max nesting level doesn't delete numerical
Added: php/php-src/branches/PHP_5_4/Zend/tests/traits/bug60717.phpt
===================================================================
--- php/php-src/branches/PHP_5_4/Zend/tests/traits/bug60717.phpt (rev 0)
+++ php/php-src/branches/PHP_5_4/Zend/tests/traits/bug60717.phpt 2012-03-04 18:26:11 UTC (rev 323891)
@@ -0,0 +1,73 @@
+--TEST--
+Bug #60717 (Order of traits in use statement can cause unexpected unresolved abstract method)
+--FILE--
+<?php
+
+namespace HTML
+{
+ interface Helper
+ {
+ function text($text);
+ function attributes(array $attributes = null);
+ function textArea(array $attributes = null, $value);
+ }
+
+ trait TextUTF8
+ {
+ function text($text) {}
+ }
+
+ trait TextArea
+ {
+ function textArea(array $attributes = null, $value) {}
+ abstract function attributes(array $attributes = null);
+ abstract function text($text);
+ }
+
+ trait HTMLAttributes
+ {
+ function attributes(array $attributes = null) { }
+ abstract function text($text);
+ }
+
+ class HTMLHelper implements Helper
+ {
+ use TextArea, HTMLAttributes, TextUTF8;
+ }
+
+ class HTMLHelper2 implements Helper
+ {
+ use TextArea, TextUTF8, HTMLAttributes;
+ }
+
+ class HTMLHelper3 implements Helper
+ {
+ use HTMLAttributes, TextArea, TextUTF8;
+ }
+
+ class HTMLHelper4 implements Helper
+ {
+ use HTMLAttributes, TextUTF8, TextArea;
+ }
+
+ class HTMLHelper5 implements Helper
+ {
+ use TextUTF8, TextArea, HTMLAttributes;
+ }
+
+ class HTMLHelper6 implements Helper
+ {
+ use TextUTF8, HTMLAttributes, TextArea;
+ }
+
+ $o = new HTMLHelper;
+ $o = new HTMLHelper2;
+ $o = new HTMLHelper3;
+ $o = new HTMLHelper4;
+ $o = new HTMLHelper5;
+ $o = new HTMLHelper6;
+ echo 'Done';
+}
+
+--EXPECT--
+Done
Modified: php/php-src/branches/PHP_5_4/Zend/tests/traits/bugs/abstract-methods06.phpt
===================================================================
--- php/php-src/branches/PHP_5_4/Zend/tests/traits/bugs/abstract-methods06.phpt 2012-03-04 17:21:16 UTC (rev 323890)
+++ php/php-src/branches/PHP_5_4/Zend/tests/traits/bugs/abstract-methods06.phpt 2012-03-04 18:26:11 UTC (rev 323891)
@@ -23,4 +23,4 @@
?>
--EXPECTF--
-Fatal error: Declaration of THelloB::hello() must be compatible with THelloA::hello($a) in %s on line %d
\ No newline at end of file
+Fatal error: Declaration of THelloA::hello($a) must be compatible with THelloB::hello() in %s on line %d
\ No newline at end of file
Modified: php/php-src/branches/PHP_5_4/Zend/zend_compile.c
===================================================================
--- php/php-src/branches/PHP_5_4/Zend/zend_compile.c 2012-03-04 17:21:16 UTC (rev 323890)
+++ php/php-src/branches/PHP_5_4/Zend/zend_compile.c 2012-03-04 18:26:11 UTC (rev 323891)
@@ -3623,6 +3623,18 @@
}
/* }}} */
+static zend_bool zend_traits_method_compatibility_check(zend_function *fn, zend_function *other_fn TSRMLS_DC) /* {{{ */
+{
+ zend_uint fn_flags = fn->common.scope->ce_flags;
+ zend_uint other_flags = other_fn->common.scope->ce_flags;
+
+ return zend_do_perform_implementation_check(fn, other_fn TSRMLS_CC)
+ && zend_do_perform_implementation_check(other_fn, fn TSRMLS_CC)
+ && ((fn_flags & ZEND_ACC_FINAL) == (other_flags & ZEND_ACC_FINAL)) /* equal final qualifier */
+ && ((fn_flags & ZEND_ACC_STATIC)== (other_flags & ZEND_ACC_STATIC)); /* equal static qualifier */
+}
+/* }}} */
+
static int zend_traits_merge_functions(zend_function *fn TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */
{
size_t current;
@@ -3645,22 +3657,16 @@
if (i == current) {
continue; /* just skip this, cause its the table this function is applied on */
}
-
+
if (zend_hash_quick_find(function_tables[i], hash_key->arKey, hash_key->nKeyLength, hash_key->h, (void **)&other_trait_fn) == SUCCESS) {
/* if it is an abstract method, there is no collision */
if (other_trait_fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
/* Make sure they are compatible */
- if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
- /* In case both are abstract, just check prototype, but need to do that in both directions */
- if ( !zend_do_perform_implementation_check(fn, other_trait_fn TSRMLS_CC)
- || !zend_do_perform_implementation_check(other_trait_fn, fn TSRMLS_CC)) {
- zend_error(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s", //ZEND_FN_SCOPE_NAME(fn), fn->common.function_name, //::%s()
- zend_get_function_declaration(fn TSRMLS_CC),
- zend_get_function_declaration(other_trait_fn TSRMLS_CC));
- }
- } else {
- /* otherwise, do the full check */
- do_inheritance_check_on_method(fn, other_trait_fn TSRMLS_CC);
+ /* In case both are abstract, just check prototype, but need to do that in both directions */
+ if (!zend_traits_method_compatibility_check(fn, other_trait_fn TSRMLS_CC)) {
+ zend_error(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
+ zend_get_function_declaration(fn TSRMLS_CC),
+ zend_get_function_declaration(other_trait_fn TSRMLS_CC));
}
/* we can savely free and remove it from other table */
@@ -3672,7 +3678,11 @@
if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
/* Make sure they are compatible.
Here, we already know other_trait_fn cannot be abstract, full check ok. */
- do_inheritance_check_on_method(other_trait_fn, fn TSRMLS_CC);
+ if (!zend_traits_method_compatibility_check(fn, other_trait_fn TSRMLS_CC)) {
+ zend_error(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
+ zend_get_function_declaration(fn TSRMLS_CC),
+ zend_get_function_declaration(other_trait_fn TSRMLS_CC));
+ }
/* just mark as solved, will be added if its own trait is processed */
abstract_solved = 1;
Added: php/php-src/trunk/Zend/tests/traits/bug60717.phpt
===================================================================
--- php/php-src/trunk/Zend/tests/traits/bug60717.phpt (rev 0)
+++ php/php-src/trunk/Zend/tests/traits/bug60717.phpt 2012-03-04 18:26:11 UTC (rev 323891)
@@ -0,0 +1,73 @@
+--TEST--
+Bug #60717 (Order of traits in use statement can cause unexpected unresolved abstract method)
+--FILE--
+<?php
+
+namespace HTML
+{
+ interface Helper
+ {
+ function text($text);
+ function attributes(array $attributes = null);
+ function textArea(array $attributes = null, $value);
+ }
+
+ trait TextUTF8
+ {
+ function text($text) {}
+ }
+
+ trait TextArea
+ {
+ function textArea(array $attributes = null, $value) {}
+ abstract function attributes(array $attributes = null);
+ abstract function text($text);
+ }
+
+ trait HTMLAttributes
+ {
+ function attributes(array $attributes = null) { }
+ abstract function text($text);
+ }
+
+ class HTMLHelper implements Helper
+ {
+ use TextArea, HTMLAttributes, TextUTF8;
+ }
+
+ class HTMLHelper2 implements Helper
+ {
+ use TextArea, TextUTF8, HTMLAttributes;
+ }
+
+ class HTMLHelper3 implements Helper
+ {
+ use HTMLAttributes, TextArea, TextUTF8;
+ }
+
+ class HTMLHelper4 implements Helper
+ {
+ use HTMLAttributes, TextUTF8, TextArea;
+ }
+
+ class HTMLHelper5 implements Helper
+ {
+ use TextUTF8, TextArea, HTMLAttributes;
+ }
+
+ class HTMLHelper6 implements Helper
+ {
+ use TextUTF8, HTMLAttributes, TextArea;
+ }
+
+ $o = new HTMLHelper;
+ $o = new HTMLHelper2;
+ $o = new HTMLHelper3;
+ $o = new HTMLHelper4;
+ $o = new HTMLHelper5;
+ $o = new HTMLHelper6;
+ echo 'Done';
+}
+
+--EXPECT--
+Done
Modified: php/php-src/trunk/Zend/tests/traits/bugs/abstract-methods06.phpt
===================================================================
--- php/php-src/trunk/Zend/tests/traits/bugs/abstract-methods06.phpt 2012-03-04 17:21:16 UTC (rev 323890)
+++ php/php-src/trunk/Zend/tests/traits/bugs/abstract-methods06.phpt 2012-03-04 18:26:11 UTC (rev 323891)
@@ -23,4 +23,4 @@
?>
--EXPECTF--
-Fatal error: Declaration of THelloB::hello() must be compatible with THelloA::hello($a) in %s on line %d
\ No newline at end of file
+Fatal error: Declaration of THelloA::hello($a) must be compatible with THelloB::hello() in %s on line %d
\ No newline at end of file
Modified: php/php-src/trunk/Zend/zend_compile.c
===================================================================
--- php/php-src/trunk/Zend/zend_compile.c 2012-03-04 17:21:16 UTC (rev 323890)
+++ php/php-src/trunk/Zend/zend_compile.c 2012-03-04 18:26:11 UTC (rev 323891)
@@ -3623,6 +3623,18 @@
}
/* }}} */
+static zend_bool zend_traits_method_compatibility_check(zend_function *fn, zend_function *other_fn TSRMLS_DC) /* {{{ */
+{
+ zend_uint fn_flags = fn->common.scope->ce_flags;
+ zend_uint other_flags = other_fn->common.scope->ce_flags;
+
+ return zend_do_perform_implementation_check(fn, other_fn TSRMLS_CC)
+ && zend_do_perform_implementation_check(other_fn, fn TSRMLS_CC)
+ && ((fn_flags & ZEND_ACC_FINAL) == (other_flags & ZEND_ACC_FINAL)) /* equal final qualifier */
+ && ((fn_flags & ZEND_ACC_STATIC)== (other_flags & ZEND_ACC_STATIC)); /* equal static qualifier */
+}
+/* }}} */
+
static int zend_traits_merge_functions(zend_function *fn TSRMLS_DC, int num_args, va_list args, zend_hash_key *hash_key) /* {{{ */
{
size_t current;
@@ -3645,22 +3657,16 @@
if (i == current) {
continue; /* just skip this, cause its the table this function is applied on */
}
-
+
if (zend_hash_quick_find(function_tables[i], hash_key->arKey, hash_key->nKeyLength, hash_key->h, (void **)&other_trait_fn) == SUCCESS) {
/* if it is an abstract method, there is no collision */
if (other_trait_fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
/* Make sure they are compatible */
- if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
- /* In case both are abstract, just check prototype, but need to do that in both directions */
- if ( !zend_do_perform_implementation_check(fn, other_trait_fn TSRMLS_CC)
- || !zend_do_perform_implementation_check(other_trait_fn, fn TSRMLS_CC)) {
- zend_error(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s", //ZEND_FN_SCOPE_NAME(fn), fn->common.function_name, //::%s()
- zend_get_function_declaration(fn TSRMLS_CC),
- zend_get_function_declaration(other_trait_fn TSRMLS_CC));
- }
- } else {
- /* otherwise, do the full check */
- do_inheritance_check_on_method(fn, other_trait_fn TSRMLS_CC);
+ /* In case both are abstract, just check prototype, but need to do that in both directions */
+ if (!zend_traits_method_compatibility_check(fn, other_trait_fn TSRMLS_CC)) {
+ zend_error(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
+ zend_get_function_declaration(fn TSRMLS_CC),
+ zend_get_function_declaration(other_trait_fn TSRMLS_CC));
}
/* we can savely free and remove it from other table */
@@ -3672,7 +3678,11 @@
if (fn->common.fn_flags & ZEND_ACC_ABSTRACT) {
/* Make sure they are compatible.
Here, we already know other_trait_fn cannot be abstract, full check ok. */
- do_inheritance_check_on_method(other_trait_fn, fn TSRMLS_CC);
+ if (!zend_traits_method_compatibility_check(fn, other_trait_fn TSRMLS_CC)) {
+ zend_error(E_COMPILE_ERROR, "Declaration of %s must be compatible with %s",
+ zend_get_function_declaration(fn TSRMLS_CC),
+ zend_get_function_declaration(other_trait_fn TSRMLS_CC));
+ }
/* just mark as solved, will be added if its own trait is processed */
abstract_solved = 1;
--
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