1 /*
2 * Copyright (C) 2016 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #include "method_type.h"
18
19 #include <string>
20 #include <vector>
21
22 #include "class-inl.h"
23 #include "class_linker-inl.h"
24 #include "class_loader.h"
25 #include "class_root-inl.h"
26 #include "common_runtime_test.h"
27 #include "handle_scope-inl.h"
28 #include "object_array-alloc-inl.h"
29 #include "object_array-inl.h"
30 #include "scoped_thread_state_change-inl.h"
31
32 namespace art {
33 namespace mirror {
34
35 class MethodTypeTest : public CommonRuntimeTest {};
36
FullyQualifiedType(const std::string & shorthand)37 static std::string FullyQualifiedType(const std::string& shorthand) {
38 return "Ljava/lang/" + shorthand + ";";
39 }
40
CreateMethodType(const std::string & return_type,const std::vector<std::string> & param_types)41 static ObjPtr<mirror::MethodType> CreateMethodType(const std::string& return_type,
42 const std::vector<std::string>& param_types) {
43 CHECK_LT(param_types.size(), 3u);
44
45 Runtime* const runtime = Runtime::Current();
46 ClassLinker* const class_linker = runtime->GetClassLinker();
47 Thread* const self = Thread::Current();
48
49 ScopedObjectAccess soa(self);
50 StackHandleScope<5> hs(soa.Self());
51
52 Handle<mirror::ClassLoader> boot_class_loader = hs.NewHandle<mirror::ClassLoader>(nullptr);
53
54 Handle<mirror::Class> return_clazz = hs.NewHandle(class_linker->FindClass(
55 soa.Self(), FullyQualifiedType(return_type).c_str(), boot_class_loader));
56 CHECK(return_clazz != nullptr);
57
58 ObjPtr<mirror::Class> class_array_type =
59 GetClassRoot<mirror::ObjectArray<mirror::Class>>(class_linker);
60 Handle<mirror::ObjectArray<mirror::Class>> param_classes = hs.NewHandle(
61 mirror::ObjectArray<mirror::Class>::Alloc(self, class_array_type, param_types.size()));
62
63 for (uint32_t i = 0; i < param_types.size(); ++i) {
64 Handle<mirror::Class> param = hs.NewHandle(class_linker->FindClass(
65 soa.Self(), FullyQualifiedType(param_types[i]).c_str(), boot_class_loader));
66 param_classes->Set(i, param.Get());
67 }
68
69 return mirror::MethodType::Create(self, return_clazz, param_classes);
70 }
71
72
TEST_F(MethodTypeTest,IsExactMatch)73 TEST_F(MethodTypeTest, IsExactMatch) {
74 ScopedObjectAccess soa(Thread::Current());
75 {
76 StackHandleScope<2> hs(soa.Self());
77 Handle<mirror::MethodType> mt1 = hs.NewHandle(CreateMethodType("String", { "Integer" }));
78 Handle<mirror::MethodType> mt2 = hs.NewHandle(CreateMethodType("String", { "Integer" }));
79 ASSERT_TRUE(mt1->IsExactMatch(mt2.Get()));
80 }
81
82 // Mismatched return type.
83 {
84 StackHandleScope<2> hs(soa.Self());
85 Handle<mirror::MethodType> mt1 = hs.NewHandle(CreateMethodType("String", { "Integer" }));
86 Handle<mirror::MethodType> mt2 = hs.NewHandle(CreateMethodType("Integer", { "Integer" }));
87 ASSERT_FALSE(mt1->IsExactMatch(mt2.Get()));
88 }
89
90 // Mismatched param types.
91 {
92 StackHandleScope<2> hs(soa.Self());
93 Handle<mirror::MethodType> mt1 = hs.NewHandle(CreateMethodType("String", { "Integer" }));
94 Handle<mirror::MethodType> mt2 = hs.NewHandle(CreateMethodType("String", { "String" }));
95 ASSERT_FALSE(mt1->IsExactMatch(mt2.Get()));
96 }
97
98 // Wrong number of param types.
99 {
100 StackHandleScope<2> hs(soa.Self());
101 Handle<mirror::MethodType> mt1 = hs.NewHandle(
102 CreateMethodType("String", { "String", "String" }));
103 Handle<mirror::MethodType> mt2 = hs.NewHandle(CreateMethodType("String", { "String" }));
104 ASSERT_FALSE(mt1->IsExactMatch(mt2.Get()));
105 }
106 }
107
108 } // namespace mirror
109 } // namespace art
110