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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
import org.checkerframework.common.value.qual.*;
class ArrayInit {
public void raggedArrays() {
int @ArrayLen(4) [] @ArrayLen({1, 3, 4}) [] @ArrayLen({1, 2, 3, 4, 7}) [] alpha =
new int[][][] {
{{1, 1}, {1, 1, 1}, {1}, {1}},
{{1}, {1}, {1}, {1, 1}},
{{1, 2, 3, 4, 5, 6, 7}},
{{1}, {1}, {1, 1, 1, 1}}
};
int @ArrayLen(4) [] @ArrayLen({1, 3, 4}) [] @ArrayLenRange(from = 1, to = 12) [] gamma =
new int[][][] {
{{1, 1}, {1, 1, 1}, {1}, {1}},
{{1}, {1}, {1}, {1, 1}},
{{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}},
{{1}, {1}, {1, 1, 1, 1}}
};
int @ArrayLen(4) [] @ArrayLen({1, 2, 3}) [] a = {{1, 1}, {1, 1, 1}, {1}, {1}};
int @ArrayLen(4) [] @ArrayLen({1, 2}) [] b = {{1}, {1}, {1}, {1, 1}};
int @ArrayLen(1) [] @ArrayLen(7) [] c = {{1, 2, 3, 4, 5, 6, 7}};
int @ArrayLen(3) [] @ArrayLen({1, 4}) [] d = {{1}, {1}, {1, 1, 1, 1}};
int @ArrayLen(4) [] @ArrayLen({1, 3, 4}) [] @ArrayLen({1, 2, 3, 4, 7}) [] beta = {
a, b, c, d
};
int @ArrayLen(4) [] @ArrayLen({1, 2, 3}) [] a1 = {{1, 1}, {1, 1, 1}, {1}, {1}};
int @ArrayLen(4) [] @ArrayLen({1, 2}) [] b1 = {{1}, {1}, {1}, {1, 1}};
int @ArrayLen(1) [] @ArrayLen(11) [] c1 = {{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11}};
int @ArrayLen(3) [] @ArrayLen({1, 4}) [] d1 = {{1}, {1}, {1, 1, 1, 1}};
int @ArrayLen(4) [] @ArrayLenRange(from = 1, to = 4) [] @ArrayLenRange(from = 1, to = 11) []
delta = {a1, b1, c1, d1};
}
public void numberInit() {
int @ArrayLen({1}) [] a = new int[1];
}
public void listInit() {
int @ArrayLen({1}) [] a = new int[] {4};
}
public void varInit() {
int i = 1;
int @ArrayLen({1}) [] a = new int[i];
}
public void rangeInit(
@IntRange(from = 1, to = 2) int shortLength,
@IntRange(from = 1, to = 20) int longLength,
@BottomVal int bottom) {
int @ArrayLen({1, 2}) [] a = new int[shortLength];
// :: error: (assignment.type.incompatible)
int @ArrayLen({1, 2}) [] b = new int[longLength];
int @ArrayLenRange(from = 1, to = 20) [] d = new int[longLength];
int @ArrayLen({0}) [] c = new int[bottom];
}
public void multiDim() {
int i = 2;
int j = 3;
int @ArrayLen({2}) [] @ArrayLen({3}) [] a = new int[2][3];
int @ArrayLen({2}) [] @ArrayLen({3}) [] b = new int[i][j];
int @ArrayLen({2}) [][] c = new int[][] {{2}, {3}};
}
public void initilizer() {
int @ArrayLen(3) [] ints = new int[] {2, 2, 2};
char @StringVal("-A%") [] chars = new char[] {45, 'A', '%'};
int @ArrayLen(3) [] ints2 = {2, 2, 2};
}
public void initializerString() {
byte @ArrayLen(2) [] bytes = new byte[] {100, '%'};
char @ArrayLen(3) [] chars = new char[] {45, 'A', '%'};
}
public void vargsTest() {
// type of arg should be @UnknownVal Object @BottomVal[]
vargs((Object[]) null);
// type of arg should be @UnknownVal int @BottomVal[]
vargs((int[]) null);
// type of arg should be @UnknownVal byte @BottomVal[]
vargs((byte[]) null);
}
public void vargs(Object @ArrayLen(0) ... objs) {}
public void vargs(int @ArrayLen(0) ... ints) {}
public void vargs(byte @ArrayLen(0) ... bytes) {}
public void nullableArrays() {
Object @ArrayLen(2) [] @ArrayLen(1) [] o = new Object[][] {new Object[] {null}, null};
Object @ArrayLen(1) [][] o2 = new Object[][] {null};
Object @ArrayLen(1) [] @ArrayLen(1) [] o3 = new Object[][] {null};
}
public void subtyping1(int @ArrayLen({1, 5}) [] a) {
int @ArrayLenRange(from = 1, to = 5) [] b = a;
// :: error: (assignment.type.incompatible)
int @ArrayLenRange(from = 2, to = 5) [] c = a;
}
public void subtyping2(int @ArrayLenRange(from = 1, to = 5) [] a) {
int @ArrayLen({1, 2, 3, 4, 5}) [] b = a;
// :: error: (assignment.type.incompatible)
int @ArrayLen({1, 5}) [] c = a;
}
public void subtyping3(int @ArrayLenRange(from = 1, to = 17) [] a) {
// :: error: (assignment.type.incompatible)
int @ArrayLenRange(from = 1, to = 12) [] b = a;
// :: error: (assignment.type.incompatible)
int @ArrayLenRange(from = 5, to = 18) [] c = a;
int @ArrayLenRange(from = 0, to = 20) [] d = a;
}
public void lub1(boolean flag, @IntRange(from = 1, to = 200) int x) {
int[] a;
if (flag) {
a = new int[x];
} else {
a = new int[250];
}
int @ArrayLenRange(from = 1, to = 250) [] b = a;
}
public void lub2(
boolean flag, @IntRange(from = 1, to = 20) int x, @IntRange(from = 50, to = 75) int y) {
int[] a;
if (flag) {
a = new int[x];
} else {
a = new int[y];
}
int @ArrayLenRange(from = 1, to = 75) [] b = a;
}
public void lub3(
boolean flag, @IntRange(from = 1, to = 5) int x, @IntRange(from = 3, to = 7) int y) {
int[] a;
if (flag) {
a = new int[x];
} else {
a = new int[y];
}
int @ArrayLenRange(from = 1, to = 7) [] b = a;
int @ArrayLen({1, 2, 3, 4, 5, 6, 7}) [] c = a;
}
public void refine(int[] q) {
if (q.length < 20) {
@IntRange(from = 0, to = 19) int x = q.length;
int @ArrayLenRange(from = 0, to = 19) [] b = q;
if (q.length < 5) {
int @ArrayLen({0, 1, 2, 3, 4}) [] c = q;
}
}
}
// The argument is an arraylen with too many values.
// :: warning: (too.many.values.given)
public void coerce(int @ArrayLen({1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 36}) [] a) {
int @ArrayLenRange(from = 1, to = 36) [] b = a;
if (a.length < 15) {
// :: error: (assignment.type.incompatible)
int @ArrayLen({1, 2, 3, 4, 5, 6, 7, 8, 9, 10}) [] c = a;
}
}
public void warnings() {
// :: warning: (negative.arraylen)
int @ArrayLenRange(from = -1, to = 5) [] a;
// :: error: (from.greater.than.to)
int @ArrayLenRange(from = 10, to = 3) [] b;
}
}
|
