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
|
/*
* @test /nodynamiccopyright/
* @bug 8003280
* @summary Add lambda tests
* check that code generation handles void-compatibility correctly
* @compile/fail/ref=LambdaConv21.out -XDrawDiagnostics LambdaConv21.java
*/
class LambdaConv21 {
interface SAM_void<X> {
void m();
}
interface SAM_java_lang_Void {
Void m();
}
static void m_void() { }
static Void m_java_lang_Void() { return null; }
static void testExpressionLambda() {
SAM_void s1 = ()->m_void(); //ok
SAM_java_lang_Void s2 = ()->m_void(); //no - incompatible target
SAM_void s3 = ()->m_java_lang_Void(); //ok - expression statement lambda is compatible with void
SAM_java_lang_Void s4 = ()->m_java_lang_Void(); //ok
}
static void testStatementLambda() {
SAM_void s1 = ()-> { m_void(); }; //ok
SAM_java_lang_Void s2 = ()-> { m_void(); }; //no - missing return value
SAM_void s3 = ()-> { return m_java_lang_Void(); }; //no - unexpected return value
SAM_java_lang_Void s4 = ()-> { return m_java_lang_Void(); }; //ok
SAM_void s5 = ()-> { m_java_lang_Void(); }; //ok
SAM_java_lang_Void s6 = ()-> { m_java_lang_Void(); }; //no - missing return value
}
}
|
