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
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/* *******************************************************************
* Copyright (c) 1999-2001 Xerox Corporation,
* 2002 Palo Alto Research Center, Incorporated (PARC).
* All rights reserved.
* This program and the accompanying materials are made available
* under the terms of the Eclipse Public License v1.0
* which accompanies this distribution and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Xerox/PARC initial implementation
* ******************************************************************/
package org.aspectj.bridge;
import java.io.File;
import org.aspectj.util.LangUtil;
/**
* Immutable source location.
* This guarantees that the source file is not null
* and that the numeric values are positive and line <= endLine.
* @see org.aspectj.lang.reflect.SourceLocation
* @see org.aspectj.compiler.base.parser.SourceInfo
* @see org.aspectj.tools.ide.SourceLine
* @see org.aspectj.testing.harness.ErrorLine
*/
public class SourceLocation implements ISourceLocation, java.io.Serializable {
private static final long serialVersionUID = -5434765814401009794L;
/** used when SourceLocation is not available */
public static final ISourceLocation UNKNOWN
= new SourceLocation(ISourceLocation.NO_FILE, 0, 0, 0);
/** @throws IllegalArgumentException if the input would not be a valid line */
public static final void validLine(int line) {
if (line < 0) {
throw new IllegalArgumentException("negative line: " + line);
} else if (line > ISourceLocation.MAX_LINE) {
throw new IllegalArgumentException("line too large: " + line);
}
}
/** @throws IllegalArgumentException if the input would not be a valid column */
public static final void validColumn(int column) {
if (column < 0) {
throw new IllegalArgumentException("negative column: " + column);
} else if (column > ISourceLocation.MAX_COLUMN) {
throw new IllegalArgumentException("column too large: " + column);
}
}
private final File sourceFile;
private final int startLine;
private final int column;
private final int endLine;
private int offset;
private final String context;
private boolean noColumn;
/**
* Same as SourceLocation(file, line, line, 0),
* except that column is not rendered during toString()
*/
public SourceLocation(File file, int line) {
this(file, line, line, NO_COLUMN);
}
/** same as SourceLocation(file, line, endLine, ISourceLocation.NO_COLUMN) */
public SourceLocation(File file, int line, int endLine) {
this(file, line, endLine, ISourceLocation.NO_COLUMN);
}
/**
* @param file File of the source; if null, use ISourceLocation.NO_FILE, not null
* @param line int starting line of the location - positive number
* @param endLine int ending line of the location - <= starting line
* @param column int character position of starting location - positive number
*/
public SourceLocation(File file, int line, int endLine, int column) {
this(file, line, endLine, column, (String) null);
}
public SourceLocation(File file, int line, int endLine, int column, String context) {
if (column == NO_COLUMN) {
column = 0;
noColumn = true;
}
if (null == file) {
file = ISourceLocation.NO_FILE;
}
validLine(line);
validLine(endLine);
LangUtil.throwIaxIfFalse(line <= endLine , line + " > " + endLine);
LangUtil.throwIaxIfFalse(column >= 0, "negative column: " + column);
this.sourceFile = file;
this.startLine = line;
this.column = column;
this.endLine = endLine;
this.context = context;
}
public File getSourceFile() {
return sourceFile;
}
public int getLine() {
return startLine;
}
/**
* @return int actual column or 0 if not available per constructor treatment
* of ISourceLocation.NO_COLUMN
*/
public int getColumn() {
return column;
}
public int getEndLine() {
return endLine;
}
/** @return null String or application-specific context */
public String getContext() {
return context;
}
/** @return String {context\n}{file:}line{:column} */
public String toString() {
StringBuffer sb = new StringBuffer();
if (null != context) {
sb.append(context);
sb.append(LangUtil.EOL);
}
if (sourceFile != ISourceLocation.NO_FILE) {
sb.append(sourceFile.getPath());
}
if (startLine > 0) {
sb.append(":");
sb.append(startLine); //"" + startLine + "-" + endLine);
}
if (!noColumn) {
sb.append(":" + column);
}
if (offset>=0) {
sb.append("::"+offset);
}
return sb.toString();
}
// XXX Ctors for this type should know about an offset, rather than
// it being set through these methods - but there are just too many
// ctors at the moment! It needs sorting out.
public int getOffset() { return offset;}
public void setOffset(int i) { offset=i;}
}
|
