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
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
|
/*******************************************************************************
* Copyright (c) 2011, 2012 IBM Corporation and others.
* 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
*
* This is an implementation of an early-draft specification developed under the Java
* Community Process (JCP) and is made available for testing and evaluation purposes
* only. The code is not compatible with any specification of the JCP.
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jdt.core.tests.compiler.regression;
import junit.framework.Test;
public class NegativeLambdaExpressionsTest extends AbstractRegressionTest {
static {
// TESTS_NAMES = new String[] { "test380112e"};
// TESTS_NUMBERS = new int[] { 50 };
// TESTS_RANGE = new int[] { 11, -1 };
}
public NegativeLambdaExpressionsTest(String name) {
super(name);
}
public static Test suite() {
return buildMinimalComplianceTestSuite(testClass(), F_1_8);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=382818, ArrayStoreException while compiling lambda
public void test001() {
this.runNegativeTest(
new String[] {
"X.java",
"interface I {\n" +
" void foo(int x, int y);\n" +
"}\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" int x, y;\n" +
" I i = () -> {\n" +
" int z = 10;\n" +
" };\n" +
" i++;\n" +
" }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 10)\n" +
" i++;\n" +
" ^^^\n" +
"Type mismatch: cannot convert from I to int\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=382841, ClassCastException while compiling lambda
public void test002() {
this.runNegativeTest(
new String[] {
"X.java",
"interface I {\n" +
" void foo(int x, int y);\n" +
"}\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" int x, y;\n" +
" I i = (p, q) -> {\n" +
" int r = 10;\n" +
" };\n" +
" i++;\n" +
" }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 10)\n" +
" i++;\n" +
" ^^^\n" +
"Type mismatch: cannot convert from I to int\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=382841, ClassCastException while compiling lambda
public void test003() {
this.runNegativeTest(
new String[] {
"X.java",
"interface I {\n" +
" void foo(int x, int y);\n" +
"}\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" int x, y;\n" +
" I i = null, i2 = (p, q) -> {\n" +
" int r = 10;\n" +
" }, i3 = null;\n" +
" i++;\n" +
" }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 10)\n" +
" i++;\n" +
" ^^^\n" +
"Type mismatch: cannot convert from I to int\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=383046, syntax error reported incorrectly on syntactically valid lambda expression
public void test004() {
this.runNegativeTest(
new String[] {
"X.java",
"interface IX {\n" +
" public void foo();\n" +
"}\n" +
"public class X {\n" +
" IX i = () -> 42;\n" +
" int x\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 6)\n" +
" int x\n" +
" ^\n" +
"Syntax error, insert \";\" to complete FieldDeclaration\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=383085 super::identifier not accepted.
public void test005() {
this.runNegativeTest(
new String[] {
"X.java",
"interface IX{\n" +
" public void foo();\n" +
"}\n" +
"public class X {\n" +
" IX i = super::toString;\n" +
" Zork z;\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 6)\n" +
" Zork z;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=383046, syntax error reported incorrectly on *syntactically* valid reference expression
public void test006() {
this.runNegativeTest(
new String[] {
"X.java",
"interface IX{\n" +
" public void foo();\n" +
"}\n" +
"public class X {\n" +
" IX i = Outer<One, Two>.Inner<Three, Four>.Deeper<Five, Six<String>>.Leaf::<Blah, Blah>method;\n" +
" int x\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 6)\n" +
" int x\n" +
" ^\n" +
"Syntax error, insert \";\" to complete FieldDeclaration\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=383096, NullPointerException with a wrong lambda code snippet
public void _test007() {
this.runNegativeTest(
new String[] {
"X.java",
"interface I {}\n" +
"public class X {\n" +
" void foo() {\n" +
" I t1 = f -> {{};\n" +
" I t2 = () -> 42;\n" +
" } \n" +
" }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 6)\n" +
" int\n" +
" ^^^\n" +
"Syntax error on token \"int\", delete this token\n" +
"----------\n" /* expected compiler log */,
true /* perform statement recovery */);
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=383949, Explicit this parameter illegal in lambda expressions
public void test008() {
this.runNegativeTest(
new String[] {
"X.java",
"interface I {\n" +
" int foo(X x);\n" +
"}\n" +
"public class X {\n" +
" public static void main(String[] args) {\n" +
" I i = (X this) -> 10; \n" +
" }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 6)\n" +
" I i = (X this) -> 10; \n" +
" ^^^^\n" +
"Lambda expressions cannot declare a this parameter\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=383949, Explicit this parameter illegal in lambda expressions
public void test009() {
this.runNegativeTest(
new String[] {
"X.java",
"import java.awt.event.ActionListener;\n" +
"interface I {\n" +
" void doit(String s1, String s2);\n" +
"}\n" +
"public class X {\n" +
" public void test1(int x) {\n" +
" ActionListener al = (public xyz) -> System.out.println(e); \n" +
" I f = (abstract final s, @Nullable t) -> System.out.println(s + t); \n" +
" }\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 7)\n" +
" ActionListener al = (public xyz) -> System.out.println(e); \n" +
" ^^^\n" +
"Syntax error, modifiers and annotations are not allowed for the lambda parameter xyz as its type is elided\n" +
"----------\n" +
"2. ERROR in X.java (at line 8)\n" +
" I f = (abstract final s, @Nullable t) -> System.out.println(s + t); \n" +
" ^\n" +
"Syntax error, modifiers and annotations are not allowed for the lambda parameter s as its type is elided\n" +
"----------\n" +
"3. ERROR in X.java (at line 8)\n" +
" I f = (abstract final s, @Nullable t) -> System.out.println(s + t); \n" +
" ^\n" +
"Syntax error, modifiers and annotations are not allowed for the lambda parameter t as its type is elided\n" +
"----------\n");
}
// https://bugs.eclipse.org/bugs/show_bug.cgi?id=381121, [] should be accepted in reference expressions.
public void test010() {
this.runNegativeTest(
new String[] {
"X.java",
"interface I {\n" +
" Object foo(int [] ia);\n" +
"}\n" +
"public class X {\n" +
" I i = (int [] ia) -> {\n" +
" return ia.clone();\n" +
" };\n" +
" I i2 = int[]::clone;\n" +
" Zork z;\n" +
"}\n",
},
"----------\n" +
"1. ERROR in X.java (at line 9)\n" +
" Zork z;\n" +
" ^^^^\n" +
"Zork cannot be resolved to a type\n" +
"----------\n");
}
public static Class testClass() {
return NegativeLambdaExpressionsTest.class;
}
}
|
