BMessageValueNode.h revision fce4895d
1/*
2 * Copyright 2011-2015, Rene Gollent, rene@gollent.com.
3 * Distributed under the terms of the MIT License.
4 */
5#ifndef BMESSAGE_VALUE_NODE_H
6#define BMESSAGE_VALUE_NODE_H
7
8#include <Message.h>
9#include <MessagePrivate.h>
10#include <ObjectList.h>
11#include <Variant.h>
12
13#include "ValueLocation.h"
14#include "ValueNode.h"
15
16
17class CompoundType;
18
19
20class BMessageValueNode : public ValueNode {
21public:
22									BMessageValueNode(
23										ValueNodeChild* nodeChild, Type* type);
24	virtual							~BMessageValueNode();
25
26	virtual	Type*					GetType() const;
27	virtual	status_t				ResolvedLocationAndValue(
28										ValueLoader* valueLoader,
29										ValueLocation*& _location,
30										Value*& _value);
31
32	virtual bool					ChildCreationNeedsValue() const
33										{ return true; }
34	virtual status_t				CreateChildren(TeamTypeInformation* info);
35	virtual int32					CountChildren() const;
36	virtual ValueNodeChild*			ChildAt(int32 index) const;
37
38private:
39
40			status_t				_GetTypeForTypeCode(
41										TeamTypeInformation* info,
42										type_code type,
43										Type*& _type);
44			status_t				_FindField(const char* name,
45										type_code type,
46										BMessage::field_header** result) const;
47			uint32					_HashName(const char* name) const;
48			status_t				_FindDataLocation(const char* name,
49										type_code type, int32 index,
50										ValueLocation& location) const;
51
52private:
53			class BMessageFieldNode;
54			class BMessageFieldNodeChild;
55
56			// for GCC2
57			friend class BMessageFieldNode;
58			friend class BMessageFieldNodeChild;
59			friend class BMessageWhatNodeChild;
60
61			typedef BObjectList<ValueNodeChild> ChildNodeList;
62
63private:
64			Type*					fType;
65			ChildNodeList			fChildren;
66			BVariant				fDataLocation;
67			BMessage::message_header*
68									fHeader;
69			BMessage::field_header*	fFields;
70			uint8*					fData;
71			BMessage				fMessage;
72			bool					fIsFlatMessage;
73};
74
75
76class BMessageValueNode::BMessageFieldNode : public ValueNode {
77public:
78									BMessageFieldNode(
79										BMessageFieldNodeChild *child,
80										BMessageValueNode* parent,
81										const BString& name,
82										type_code type, int32 count);
83
84	virtual 						~BMessageFieldNode();
85
86	virtual Type* 					GetType() const;
87
88	virtual status_t 				ResolvedLocationAndValue(
89										ValueLoader* loader,
90										ValueLocation *& _location,
91										Value*& _value);
92
93	virtual	status_t 				CreateChildren(TeamTypeInformation* info);
94	virtual	int32 					CountChildren() const;
95	virtual	ValueNodeChild* 		ChildAt(int32 index) const;
96
97private:
98			BString 				fName;
99			Type*					fType;
100			BMessageValueNode* 		fParent;
101			type_code				fFieldType;
102			int32					fFieldCount;
103			ChildNodeList			fChildren;
104};
105
106
107class BMessageValueNode::BMessageFieldNodeChild : public ValueNodeChild {
108public:
109									BMessageFieldNodeChild(
110										BMessageValueNode* parent,
111										Type* nodeType,
112										const BString &name,
113										type_code type, int32 count,
114										int32 index = -1);
115
116	virtual 						~BMessageFieldNodeChild();
117
118	virtual const BString& 			Name() const;
119	virtual Type* 					GetType() const;
120	virtual ValueNode* 				Parent() const;
121
122	virtual bool 					IsInternal() const;
123	virtual status_t 				CreateInternalNode(
124										ValueNode*& _node);
125
126	virtual	status_t 				ResolveLocation(ValueLoader* valueLoader,
127										ValueLocation*& _location);
128
129private:
130			BString 				fName;
131			BString					fPresentationName;
132			Type*					fType;
133			BMessageValueNode* 		fParent;
134			type_code				fFieldType;
135			int32					fFieldCount;
136			int32					fFieldIndex;
137};
138
139#endif	// BMESSAGE_VALUE_NODE_H
140