EnumType.h revision 19ca75ae47df5cd9447b232c31c5df1d110e85d9 
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#ifndef ENUM_TYPE_H_
18
19#define ENUM_TYPE_H_
20
21#include "ConstantExpression.h"
22#include "NamedType.h"
23
24#include <vector>
25
26namespace android {
27
28struct EnumValue;
29
30struct EnumType : public NamedType {
31    EnumType(const char *localName,
32             std::vector<EnumValue *> *values,
33             Type *storageType = NULL);
34
35    const Type *storageType() const;
36    const std::vector<EnumValue *> &values() const;
37
38    const ScalarType *resolveToScalarType() const override;
39
40    bool isEnum() const override;
41
42    std::string getCppType(StorageMode mode, std::string *extra) const override;
43
44    std::string getJavaType() const override;
45    std::string getJavaSuffix() const override;
46
47    void emitReaderWriter(
48            Formatter &out,
49            const std::string &name,
50            const std::string &parcelObj,
51            bool parcelObjIsPointer,
52            bool isReader,
53            ErrorMode mode) const override;
54
55    void emitJavaFieldReaderWriter(
56            Formatter &out,
57            const std::string &blobName,
58            const std::string &fieldName,
59            const std::string &offset,
60            bool isReader) const override;
61
62    status_t emitTypeDeclarations(Formatter &out) const override;
63
64    status_t emitJavaTypeDeclarations(
65            Formatter &out, bool atTopLevel) const override;
66
67    status_t emitVtsTypeDeclarations(Formatter &out) const override;
68    status_t emitVtsAttributeType(Formatter &out) const override;
69
70    void getAlignmentAndSize(size_t *align, size_t *size) const override;
71
72private:
73    void getTypeChain(std::vector<const EnumType *> *out) const;
74    std::vector<EnumValue *> *mValues;
75    Type *mStorageType;
76
77    DISALLOW_COPY_AND_ASSIGN(EnumType);
78};
79
80struct EnumValue {
81    EnumValue(const char *name, const ConstantExpression *value = nullptr);
82
83    std::string name() const;
84    const char *value() const;
85    const char *cppValue(ScalarType::Kind castKind) const;
86    const char *javaValue(ScalarType::Kind castKind) const;
87    const char *comment() const;
88
89private:
90    std::string mName;
91    const ConstantExpression *mValue;
92
93    DISALLOW_COPY_AND_ASSIGN(EnumValue);
94};
95
96}  // namespace android
97
98#endif  // ENUM_TYPE_H_
99
100