1 | //////////////////////////////////////////////////////////////////////////////// | |
2 | // checkstyle: Checks Java source code for adherence to a set of rules. | |
3 | // Copyright (C) 2001-2021 the original author or authors. | |
4 | // | |
5 | // This library is free software; you can redistribute it and/or | |
6 | // modify it under the terms of the GNU Lesser General Public | |
7 | // License as published by the Free Software Foundation; either | |
8 | // version 2.1 of the License, or (at your option) any later version. | |
9 | // | |
10 | // This library is distributed in the hope that it will be useful, | |
11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | // Lesser General Public License for more details. | |
14 | // | |
15 | // You should have received a copy of the GNU Lesser General Public | |
16 | // License along with this library; if not, write to the Free Software | |
17 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
18 | //////////////////////////////////////////////////////////////////////////////// | |
19 | ||
20 | package com.puppycrawl.tools.checkstyle.checks.imports; | |
21 | ||
22 | import java.util.regex.Pattern; | |
23 | ||
24 | /** | |
25 | * Represents an import rules for a specific file. Only the file name is | |
26 | * considered and only files processed by TreeWalker. The file's | |
27 | * extension is ignored. | |
28 | */ | |
29 | class FileImportControl extends AbstractImportControl { | |
30 | /** The name for the file. */ | |
31 | private final String name; | |
32 | /** The regex pattern for exact matches - only not null if regex is true. */ | |
33 | private final Pattern patternForExactMatch; | |
34 | /** If this file name represents a regular expression. */ | |
35 | private final boolean regex; | |
36 | ||
37 | /** | |
38 | * Construct a file node. | |
39 | * | |
40 | * @param parent the parent node. | |
41 | * @param name the name of the file. | |
42 | * @param regex flags interpretation of name as regex pattern. | |
43 | */ | |
44 | /* package */ FileImportControl(PkgImportControl parent, String name, boolean regex) { | |
45 | super(parent, MismatchStrategy.DELEGATE_TO_PARENT); | |
46 | ||
47 | this.regex = regex; | |
48 |
3
1. <init> : negated conditional → KILLED 2. <init> : removed conditional - replaced equality check with false → KILLED 3. <init> : removed conditional - replaced equality check with true → KILLED |
if (regex) { |
49 | this.name = encloseInGroup(name); | |
50 | patternForExactMatch = createPatternForExactMatch(this.name); | |
51 | } | |
52 | else { | |
53 | this.name = name; | |
54 | patternForExactMatch = null; | |
55 | } | |
56 | } | |
57 | ||
58 | /** | |
59 | * Enclose {@code expression} in a (non-capturing) group. | |
60 | * | |
61 | * @param expression the input regular expression | |
62 | * @return a grouped pattern. | |
63 | */ | |
64 | private static String encloseInGroup(String expression) { | |
65 |
2
1. encloseInGroup : removed call to java/lang/StringBuilder::<init> → KILLED 2. encloseInGroup : mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/imports/FileImportControl::encloseInGroup to ( if (x != null) null else throw new RuntimeException ) → KILLED |
return "(?:" + expression + ")"; |
66 | } | |
67 | ||
68 | /** | |
69 | * Creates a Pattern from {@code expression}. | |
70 | * | |
71 | * @param expression a self-contained regular expression matching the full | |
72 | * file name exactly. | |
73 | * @return a Pattern. | |
74 | */ | |
75 | private static Pattern createPatternForExactMatch(String expression) { | |
76 |
1
1. createPatternForExactMatch : mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/imports/FileImportControl::createPatternForExactMatch to ( if (x != null) null else throw new RuntimeException ) → KILLED |
return Pattern.compile(expression); |
77 | } | |
78 | ||
79 | @Override | |
80 | public AbstractImportControl locateFinest(String forPkg, String forFileName) { | |
81 | AbstractImportControl finestMatch = null; | |
82 | // Check if we are a match. | |
83 |
3
1. locateFinest : negated conditional → KILLED 2. locateFinest : removed conditional - replaced equality check with false → KILLED 3. locateFinest : removed conditional - replaced equality check with true → KILLED |
if (matchesExactly(forPkg, forFileName)) { |
84 | finestMatch = this; | |
85 | } | |
86 |
1
1. locateFinest : mutated return of Object value for com/puppycrawl/tools/checkstyle/checks/imports/FileImportControl::locateFinest to ( if (x != null) null else throw new RuntimeException ) → KILLED |
return finestMatch; |
87 | } | |
88 | ||
89 | @Override | |
90 | protected boolean matchesExactly(String pkg, String fileName) { | |
91 | final boolean result; | |
92 |
3
1. matchesExactly : negated conditional → KILLED 2. matchesExactly : removed conditional - replaced equality check with false → KILLED 3. matchesExactly : removed conditional - replaced equality check with true → KILLED |
if (fileName == null) { |
93 | result = false; | |
94 | } | |
95 |
3
1. matchesExactly : negated conditional → KILLED 2. matchesExactly : removed conditional - replaced equality check with false → KILLED 3. matchesExactly : removed conditional - replaced equality check with true → KILLED |
else if (regex) { |
96 | result = patternForExactMatch.matcher(fileName).matches(); | |
97 | } | |
98 | else { | |
99 | result = name.equals(fileName); | |
100 | } | |
101 |
3
1. matchesExactly : replaced boolean return with false for com/puppycrawl/tools/checkstyle/checks/imports/FileImportControl::matchesExactly → KILLED 2. matchesExactly : replaced boolean return with true for com/puppycrawl/tools/checkstyle/checks/imports/FileImportControl::matchesExactly → KILLED 3. matchesExactly : replaced return of integer sized value with (x == 0 ? 1 : 0) → KILLED |
return result; |
102 | } | |
103 | } | |
Mutations | ||
48 |
1.1 2.2 3.3 |
|
65 |
1.1 2.2 |
|
76 |
1.1 |
|
83 |
1.1 2.2 3.3 |
|
86 |
1.1 |
|
92 |
1.1 2.2 3.3 |
|
95 |
1.1 2.2 3.3 |
|
101 |
1.1 2.2 3.3 |