1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
|
/*
* Context.h
*
* Created on: Dec 30, 2012
* Author: att
*/
#ifndef CONTEXT_H_
#define CONTEXT_H_
#include <map>
#include <string>
#include "Utils/to_string.h"
#include "Elements/SenchaObject.h"
#include "Elements/SenchaFunction.h"
#include "AST/ASTExpression.h"
/**
* Context is object used to store variables for some execution context.
* It's most useful in function calls. Every function has to have its own execution contexts,
* for its variables. Arguments are passed to functions by predefining them in new Context, assigned to
* function.
*/
class Context {
public:
/**
* Context has unique name, which is passed to it in constructor.
*/
Context(std::string name);
std::string name;
/**
* Typedef to make further declarations easier to read.
*/
typedef SenchaObject (*PointerToNativeFunction)(std::vector<ASTExpression *>);
/**
* Function have to be declared, which means here, registered before usage.
* You can register them with register_function functions.
*/
void register_function(std::string name, PointerToNativeFunction f);
void register_function(std::string name, SenchaFunction * f);
/**
* Map with function written in C++ stored like {"my_function" : &my_function}
*/
std::map<std::string, PointerToNativeFunction> registered_functions;
/**
* Map with function written in Sencha stored like {"my_function" : &my_function}
*/
std::map<std::string, SenchaFunction *> registered_sfunctions;
/**
* contains_function("x") returns true if x can be found in registered native (c++) or sencha functions.
*/
bool contains_function(std::string name);
/**
* contains_function("x") returns true if x can be found in registered sencha functions.
*/
bool contains_sfunction(std::string name);
/**
* contains_function("x") returns true if x can be found in registered native (c++).
*/
bool contains_nfunction(std::string name);
/**
* Executes function written in c++
*/
SenchaObject execute_native_function(std::string name, std::vector<ASTExpression *> arguments);
/**
* get_updated_string(name) return string of given name with all updates done on its elements such as name[9] = "a";
*/
SenchaObject get_updated_string(std::string name);
/**
* debug() provides very useful info about context. What variables are stored, what are their values.
*/
std::string debug() ;
/**
* add(name, value) adds value called name to object store.
*/
void add(std::string name, SenchaObject object);
/**
* get(name) returns value from object store. If there isn't such a value. It returns SenchaObject();
*/
SenchaObject get(std::string name);
virtual ~Context();
private:
unsigned int index;
std::map<std::string, SenchaObject> object_store;
};
#endif /* CONTEXT_H_ */
|
