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
|
/*
*
* Copyright 2001-2004 The Ant-Contrib project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package net.sf.antcontrib.cpptasks.types;
import java.util.Vector;
import net.sf.antcontrib.cpptasks.CUtil;
import org.apache.tools.ant.BuildException;
/**
* Preprocessor macro undefinition.
*
* @author Mark A Russell <a
* href="mailto:mark_russell@csgsystems.com">mark_russell@csg_systems.com
* </a>
*/
public class UndefineArgument {
/**
* This method returns an array of UndefineArgument and DefineArgument's by
* merging a base list with an override list.
*
* Any define in the base list with a name that appears in the override
* list is suppressed. All entries in the override list are preserved
*
*/
public static UndefineArgument[] merge(UndefineArgument[] base,
UndefineArgument[] override) {
if (base.length == 0) {
UndefineArgument[] overrideClone = (UndefineArgument[]) override
.clone();
return overrideClone;
}
if (override.length == 0) {
UndefineArgument[] baseClone = (UndefineArgument[]) base.clone();
return baseClone;
}
Vector unduplicated = new Vector(base.length);
for (int i = 0; i < base.length; i++) {
UndefineArgument current = base[i];
String currentName = current.getName();
boolean match = false;
if (currentName == null) {
match = true;
} else {
for (int j = 0; j < override.length; j++) {
UndefineArgument over = override[j];
String overName = over.getName();
if (overName != null && overName.equals(currentName)) {
match = true;
break;
}
}
}
if (!match) {
unduplicated.addElement(current);
}
}
UndefineArgument[] combined = new UndefineArgument[unduplicated.size()
+ override.length];
unduplicated.copyInto(combined);
int offset = unduplicated.size();
for (int i = 0; i < override.length; i++) {
combined[offset + i] = override[i];
}
return combined;
}
private boolean define = false;
private String ifCond;
private String name;
private String unlessCond;
public UndefineArgument() {
}
protected UndefineArgument(boolean isDefine) {
this.define = isDefine;
}
public void execute() throws org.apache.tools.ant.BuildException {
throw new org.apache.tools.ant.BuildException(
"Not an actual task, but looks like one for documentation purposes");
}
/** Returns the name of the define */
public final String getName() {
return name;
}
/** Returns the value of the define */
public String getValue() {
return null;
}
/**
* Returns true if the define's if and unless conditions (if any) are
* satisfied.
*
* @exception BuildException
* throws build exception if name is not set
*/
public final boolean isActive(org.apache.tools.ant.Project p)
throws BuildException {
if (name == null) {
throw new BuildException("<define> is missing name attribute");
}
return CUtil.isActive(p, ifCond, unlessCond);
}
/** Returns true if this is a define, false if an undefine. */
public final boolean isDefine() {
return define;
}
/**
* Sets the property name for the 'if' condition.
*
* The define will be ignored unless the property is defined.
*
* The value of the property is insignificant, but values that would imply
* misinterpretation ("false", "no") will throw an exception when
* evaluated.
*
* @param propName
* property name
*/
public final void setIf(String propName) {
ifCond = propName;
}
/** Set the name attribute */
public final void setName(String name) {
this.name = name;
}
/**
* Set the property name for the 'unless' condition.
*
* If named property is set, the define will be ignored.
*
* The value of the property is insignificant, but values that would imply
* misinterpretation ("false", "no") of the behavior will throw an
* exception when evaluated.
*
* @param propName
* name of property
*/
public final void setUnless(String propName) {
unlessCond = propName;
}
}
|
