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least upper bound: pull unbounded wildcard up so types Number & Comparable<? extends Number & Comparable<?>> are produced instead of Number & Comparable<? extends Comparable<?>>

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inferred type in bounds check cleanup: accept that inference result is not within its bounds and give the inference the second chance
This commit is contained in:
Anna Kozlova
2015-12-09 11:25:11 +01:00
parent 1402b31623
commit dd38082794
10 changed files with 73 additions and 130 deletions
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java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IDEA57492.java
+10 -1
View File
@@ -14,4 +14,13 @@ abstract class A1<T>{
void bar(A1<Long> x, A1<Integer> y){
baz(foo(x, y));
}
}
}
abstract class A3<T>{
abstract <S> S foo(S x, S y);
<S extends Number & Comparable<? extends K>, K extends Number & Comparable<? extends M>, M extends Number & Comparable<?>> void baz(A<S> a){}
void bar(A<Long> x, A<Integer> y){
baz(foo(x, y));
}
}
java/java-tests/testData/codeInsight/daemonCodeAnalyzer/genericsHighlighting/IntersectionTypes.java
+2 -2
View File
@@ -8,7 +8,7 @@ class Test {
}
void foo() {
<error descr="Incompatible types. Found: 'java.util.List<java.lang.Class<? extends java.io.Serializable & java.lang.Comparable<? extends java.lang.Comparable<?>>>>', required: 'java.util.List<java.lang.Class<? extends java.io.Serializable>>'">List<Class<? extends Serializable>> l = <warning descr="Unchecked generics array creation for varargs parameter">this.asList</warning>(String.class, Integer.class);</error>
<error descr="Incompatible types. Found: 'java.util.List<java.lang.Class<? extends java.io.Serializable & java.lang.Comparable<? extends java.io.Serializable & java.lang.Comparable<?>>>>', required: 'java.util.List<java.lang.Class<? extends java.io.Serializable>>'">List<Class<? extends Serializable>> l = <warning descr="Unchecked generics array creation for varargs parameter">this.asList</warning>(String.class, Integer.class);</error>
l.size();
List<? extends Object> objects = this.asList(new String(), new Integer(0));
objects.size();
@@ -146,7 +146,7 @@ class IDEADEV25515 {
}
public static final
<error descr="Incompatible types. Found: 'java.util.List<java.lang.Class<? extends java.io.Serializable & java.lang.Comparable<? extends java.lang.Comparable<?>>>>', required: 'java.util.List<java.lang.Class<? extends java.io.Serializable>>'">List<Class<? extends Serializable>> SIMPLE_TYPES =
<error descr="Incompatible types. Found: 'java.util.List<java.lang.Class<? extends java.io.Serializable & java.lang.Comparable<? extends java.io.Serializable & java.lang.Comparable<?>>>>', required: 'java.util.List<java.lang.Class<? extends java.io.Serializable>>'">List<Class<? extends Serializable>> SIMPLE_TYPES =
<warning descr="Unchecked generics array creation for varargs parameter">asList</warning>(String.class, Integer.class ,Long.class, Double.class, /*Date.class,*/
Boolean.class, Boolean.TYPE /*,String[].class */ /*,BigDecimal.class*/);</error>