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1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 *     * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31/**
32 * @constructor
33 * @param {number} startLine
34 * @param {number} startColumn
35 * @param {number} endLine
36 * @param {number} endColumn
37 */
38WebInspector.TextRange = function(startLine, startColumn, endLine, endColumn)
39{
40    this.startLine = startLine;
41    this.startColumn = startColumn;
42    this.endLine = endLine;
43    this.endColumn = endColumn;
44}
45
46WebInspector.TextRange.createFromLocation = function(line, column)
47{
48    return new WebInspector.TextRange(line, column, line, column);
49}
50
51/**
52 * @param {!Object} serializedTextRange
53 * @return {!WebInspector.TextRange}
54 */
55WebInspector.TextRange.fromObject = function(serializedTextRange)
56{
57    return new WebInspector.TextRange(serializedTextRange.startLine, serializedTextRange.startColumn, serializedTextRange.endLine, serializedTextRange.endColumn);
58}
59
60WebInspector.TextRange.prototype = {
61    /**
62     * @return {boolean}
63     */
64    isEmpty: function()
65    {
66        return this.startLine === this.endLine && this.startColumn === this.endColumn;
67    },
68
69    /**
70     * @param {!WebInspector.TextRange} range
71     * @return {boolean}
72     */
73    immediatelyPrecedes: function(range)
74    {
75        if (!range)
76            return false;
77        return this.endLine === range.startLine && this.endColumn === range.startColumn;
78    },
79
80    /**
81     * @param {!WebInspector.TextRange} range
82     * @return {boolean}
83     */
84    immediatelyFollows: function(range)
85    {
86        if (!range)
87            return false;
88        return range.immediatelyPrecedes(this);
89    },
90
91    /**
92     * @return {number}
93     */
94    get linesCount()
95    {
96        return this.endLine - this.startLine;
97    },
98
99    collapseToEnd: function()
100    {
101        return new WebInspector.TextRange(this.endLine, this.endColumn, this.endLine, this.endColumn);
102    },
103
104    /**
105     * @return {!WebInspector.TextRange}
106     */
107    normalize: function()
108    {
109        if (this.startLine > this.endLine || (this.startLine === this.endLine && this.startColumn > this.endColumn))
110            return new WebInspector.TextRange(this.endLine, this.endColumn, this.startLine, this.startColumn);
111        else
112            return this.clone();
113    },
114
115    /**
116     * @return {!WebInspector.TextRange}
117     */
118    clone: function()
119    {
120        return new WebInspector.TextRange(this.startLine, this.startColumn, this.endLine, this.endColumn);
121    },
122
123    /**
124     * @return {!Object}
125     */
126    serializeToObject: function()
127    {
128        var serializedTextRange = {};
129        serializedTextRange.startLine = this.startLine;
130        serializedTextRange.startColumn = this.startColumn;
131        serializedTextRange.endLine = this.endLine;
132        serializedTextRange.endColumn = this.endColumn;
133        return serializedTextRange;
134    },
135
136    /**
137     * @param {!WebInspector.TextRange} other
138     * @return {number}
139     */
140    compareTo: function(other)
141    {
142        if (this.startLine > other.startLine)
143            return 1;
144        if (this.startLine < other.startLine)
145            return -1;
146        if (this.startColumn > other.startColumn)
147            return 1;
148        if (this.startColumn < other.startColumn)
149            return -1;
150        return 0;
151    },
152
153    /**
154     * @param {number} lineOffset
155     * @return {!WebInspector.TextRange}
156     */
157    shift: function(lineOffset)
158    {
159        return new WebInspector.TextRange(this.startLine + lineOffset, this.startColumn, this.endLine + lineOffset, this.endColumn);
160    },
161
162    toString: function()
163    {
164        return JSON.stringify(this);
165    }
166}
167
168/**
169 * @constructor
170 * @param {number} offset
171 * @param {number} length
172 */
173WebInspector.SourceRange = function(offset, length)
174{
175    this.offset = offset;
176    this.length = length;
177}
178