Add test for compiler attribute validation.

Author: beberlei

Zend/tests/attributes/016_target_resolution_compiler_attributes.phpt

@@ -0,0 +1,15 @@
+--TEST--
+Attributes: Compiler Attributes can check for target declarations
+--SKIPIF--
+<?php
+if (!extension_loaded('zend-test')) {
+    echo "skip requires zend-test extension\n";
+}
+--FILE--
+<?php
+
+<<ZendTestAttribute>>
+function foo() {
+}
+--EXPECTF--
+Fatal error: Only classes can be marked with <<ZendTestAttribute>> in %s

ext/zend_test/test.c

@@ -23,11 +23,13 @@
 #include "ext/standard/info.h"
 #include "php_test.h"
 #include "test_arginfo.h"
+#include "zend_attributes.h"
 
 static zend_class_entry *zend_test_interface;
 static zend_class_entry *zend_test_class;
 static zend_class_entry *zend_test_child_class;
 static zend_class_entry *zend_test_trait;
+static zend_class_entry *zend_test_attribute;
 static zend_object_handlers zend_test_class_handlers;
 
 ZEND_FUNCTION(zend_test_func)
@@ -181,6 +183,13 @@ static zend_function *zend_test_class_static_method_get(zend_class_entry *ce, ze
 }
 /* }}} */
 
+void zend_attribute_validate_zendtestattribute(zend_attribute *attr, int target)
+{
+	if (target != ZEND_ATTRIBUTE_TARGET_CLASS) {
+		zend_error(E_COMPILE_ERROR, "Only classes can be marked with <<ZendTestAttribute>>");
+	}
+}
+
 ZEND_METHOD(_ZendTestClass, __toString) /* {{{ */ {
 	RETURN_EMPTY_STRING();
 }
@@ -272,6 +281,12 @@ PHP_MINIT_FUNCTION(zend_test)
 	zend_register_class_alias("_ZendTestClassAlias", zend_test_class);
 
 	REGISTER_LONG_CONSTANT("ZEND_TEST_DEPRECATED", 42, CONST_PERSISTENT | CONST_DEPRECATED);
+
+	INIT_CLASS_ENTRY(class_entry, "ZendTestAttribute", NULL);
+	zend_test_attribute = zend_register_internal_class(&class_entry);
+	zend_test_attribute->ce_flags |= ZEND_ACC_FINAL;
+
+	zend_compiler_attribute_register(zend_test_attribute, zend_attribute_validate_zendtestattribute);
 	return SUCCESS;
 }