reflection-inl.h revision ffc788cb7b5b9f53734d7bb8af2d5e45d885546b 
1/*
2 * Copyright (C) 2014 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#ifndef ART_RUNTIME_REFLECTION_INL_H_
18#define ART_RUNTIME_REFLECTION_INL_H_
19
20#include "reflection.h"
21
22#include "base/stringprintf.h"
23#include "common_throws.h"
24#include "jvalue.h"
25#include "primitive.h"
26#include "utils.h"
27
28namespace art {
29
30inline bool ConvertPrimitiveValue(const ThrowLocation* throw_location, bool unbox_for_result,
31                                  Primitive::Type srcType, Primitive::Type dstType,
32                                  const JValue& src, JValue* dst) {
33  DCHECK(srcType != Primitive::kPrimNot && dstType != Primitive::kPrimNot);
34  if (LIKELY(srcType == dstType)) {
35    dst->SetJ(src.GetJ());
36    return true;
37  }
38  switch (dstType) {
39  case Primitive::kPrimBoolean:  // Fall-through.
40  case Primitive::kPrimChar:  // Fall-through.
41  case Primitive::kPrimByte:
42    // Only expect assignment with source and destination of identical type.
43    break;
44  case Primitive::kPrimShort:
45    if (srcType == Primitive::kPrimByte) {
46      dst->SetS(src.GetI());
47      return true;
48    }
49    break;
50  case Primitive::kPrimInt:
51    if (srcType == Primitive::kPrimByte || srcType == Primitive::kPrimChar ||
52        srcType == Primitive::kPrimShort) {
53      dst->SetI(src.GetI());
54      return true;
55    }
56    break;
57  case Primitive::kPrimLong:
58    if (srcType == Primitive::kPrimByte || srcType == Primitive::kPrimChar ||
59        srcType == Primitive::kPrimShort || srcType == Primitive::kPrimInt) {
60      dst->SetJ(src.GetI());
61      return true;
62    }
63    break;
64  case Primitive::kPrimFloat:
65    if (srcType == Primitive::kPrimByte || srcType == Primitive::kPrimChar ||
66        srcType == Primitive::kPrimShort || srcType == Primitive::kPrimInt) {
67      dst->SetF(src.GetI());
68      return true;
69    } else if (srcType == Primitive::kPrimLong) {
70      dst->SetF(src.GetJ());
71      return true;
72    }
73    break;
74  case Primitive::kPrimDouble:
75    if (srcType == Primitive::kPrimByte || srcType == Primitive::kPrimChar ||
76        srcType == Primitive::kPrimShort || srcType == Primitive::kPrimInt) {
77      dst->SetD(src.GetI());
78      return true;
79    } else if (srcType == Primitive::kPrimLong) {
80      dst->SetD(src.GetJ());
81      return true;
82    } else if (srcType == Primitive::kPrimFloat) {
83      dst->SetD(src.GetF());
84      return true;
85    }
86    break;
87  default:
88    break;
89  }
90  if (!unbox_for_result) {
91    ThrowIllegalArgumentException(throw_location,
92                                  StringPrintf("Invalid primitive conversion from %s to %s",
93                                               PrettyDescriptor(srcType).c_str(),
94                                               PrettyDescriptor(dstType).c_str()).c_str());
95  } else {
96    ThrowClassCastException(throw_location,
97                            StringPrintf("Couldn't convert result of type %s to %s",
98                                         PrettyDescriptor(srcType).c_str(),
99                                         PrettyDescriptor(dstType).c_str()).c_str());
100  }
101  return false;
102}
103
104}  // namespace art
105
106#endif  // ART_RUNTIME_REFLECTION_INL_H_
107