1/*****************************************************************************/
2/* */
3/* span.h */
4/* */
5/* A span of data within a segment */
6/* */
7/* */
8/* */
9/* (C) 2003-2011, Ullrich von Bassewitz */
10/* Roemerstrasse 52 */
11/* D-70794 Filderstadt */
12/* EMail: uz@cc65.org */
13/* */
14/* */
15/* This software is provided 'as-is', without any expressed or implied */
16/* warranty. In no event will the authors be held liable for any damages */
17/* arising from the use of this software. */
18/* */
19/* Permission is granted to anyone to use this software for any purpose, */
20/* including commercial applications, and to alter it and redistribute it */
21/* freely, subject to the following restrictions: */
22/* */
23/* 1. The origin of this software must not be misrepresented; you must not */
24/* claim that you wrote the original software. If you use this software */
25/* in a product, an acknowledgment in the product documentation would be */
26/* appreciated but is not required. */
27/* 2. Altered source versions must be plainly marked as such, and must not */
28/* be misrepresented as being the original software. */
29/* 3. This notice may not be removed or altered from any source */
30/* distribution. */
31/* */
32/*****************************************************************************/
33
34
35
36#ifndef SPAN_H
37#define SPAN_H
38
39
40
41/* common */
42#include "coll.h"
43#include "gentype.h"
44#include "hashtab.h"
45#include "inline.h"
46#include "strbuf.h"
47
48
49
50/*****************************************************************************/
51/* Data */
52/*****************************************************************************/
53
54
55
56/* Forwards */
57struct Segment;
58
59/* Span definition */
60typedef struct Span Span;
61struct Span{
62 HashNode Node; /* Node for hash table */
63 unsigned Id; /* Id of span */
64 struct Segment* Seg; /* Pointer to segment */
65 unsigned Start; /* Start of range */
66 unsigned End; /* End of range */
67 unsigned Type; /* Type of data in span */
68};
69
70
71
72/*****************************************************************************/
73/* Code */
74/*****************************************************************************/
75
76
77
78#if defined(HAVE_INLINE)
79INLINE unsigned long GetSpanSize (const Span* R)
80/* Return the span size in bytes */
81{
82 return (R->End - R->Start);
83}
84#else
85# define GetSpanSize(R) ((R)->End - (R)->Start)
86#endif
87
88void SetSpanType (Span* S, const StrBuf* Type);
89/* Set the generic type of the span to Type */
90
91Span* OpenSpan (void);
92/* Open a span for the active segment and return it. */
93
94Span* CloseSpan (Span* S);
95/* Close the given span. Be sure to replace the passed span by the one
96** returned, since the span will get deleted if it is empty or may be
97** replaced if a duplicate exists.
98*/
99
100void OpenSpanList (Collection* Spans);
101/* Open a list of spans for all existing segments to the given collection of
102** spans. The currently active segment will be inserted first with all others
103** following.
104*/
105
106void CloseSpanList (Collection* Spans);
107/* Close all open spans by setting PC to the current PC for the segment. */
108
109void WriteSpanList (const Collection* Spans);
110/* Write a list of spans to the output file */
111
112void WriteSpans (void);
113/* Write all spans to the object file */
114
115
116
117/* End of span.h */
118
119#endif
120