blob: 11ace8d1f47b90f9fdd71503fc86b04454b617d2 (
plain)
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
|
// file : xsde/cxx/parser/state.hxx
// author : Boris Kolpackov <boris@codesynthesis.com>
// copyright : Copyright (c) 2005-2009 Code Synthesis Tools CC
// license : GNU GPL v2 + exceptions; see accompanying LICENSE file
#ifndef XSDE_CXX_PARSER_STATE_HXX
#define XSDE_CXX_PARSER_STATE_HXX
#include <stddef.h> // size_t
#include <xsde/cxx/parser/elements.hxx>
namespace xsde
{
namespace cxx
{
namespace parser
{
// POD stack with pre-allocated first element. You may
// need to pad your elements to get the proper alignment.
//
struct stack
{
enum error
{
error_none,
error_no_memory
};
~stack ();
stack (size_t element_size, void* first_element);
public:
void
pop ();
error
push ();
void*
top ();
size_t
element_size () const;
void
clear ();
private:
error
grow ();
private:
size_t el_size_;
void* first_;
char* data_;
size_t size_;
size_t capacity_;
};
// Optimized state stack for non-recursive case (one element).
//
struct parser_stack
{
parser_stack (parser_state& first);
stack::error
push (parser_state&);
void
pop ();
parser_state&
top ();
void
clear ();
private:
stack stack_;
};
}
}
}
#include <xsde/cxx/parser/state.ixx>
#endif // XSDE_CXX_PARSER_STATE_HXX
|
