langtools/test/tools/javac/generics/diamond/neg/Neg03.java
author mcimadamore
Thu, 27 Aug 2009 13:40:48 +0100
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child 5327 cdc146f667c7
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6840638: Project Coin: Improved Type Inference for Generic Instance Creation (aka 'diamond') Summary: diamond operator implementation (simple approach) Reviewed-by: jjg
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/*
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 * @test /nodynamiccopyright/
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 * @bug 6840638
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 *
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 * @summary  Project Coin: Improved Type Inference for Generic Instance Creation (aka 'diamond')
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 * @author mcimadamore
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 * @compile/fail/ref=Neg03.out Neg03.java -source 1.7 -XDrawDiagnostics
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 *
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 */
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class Neg03<U> {
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    class Foo<V extends Number> {
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        Foo(V x) {}
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        <Z> Foo(V x, Z z) {}
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    }
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    void testSimple() {
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        Foo<String> f1 = new Foo<>(""); //new Foo<Integer> created
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        Foo<? extends String> f2 = new Foo<>(""); //new Foo<Integer> created
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        Foo<?> f3 = new Foo<>(""); //new Foo<Object> created
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        Foo<? super String> f4 = new Foo<>(""); //new Foo<Object> created
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        Foo<String> f5 = new Foo<>(""){}; //new Foo<Integer> created
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        Foo<? extends String> f6 = new Foo<>(""){}; //new Foo<Integer> created
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        Foo<?> f7 = new Foo<>(""){}; //new Foo<Object> created
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        Foo<? super String> f8 = new Foo<>(""){}; //new Foo<Object> created
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        Foo<String> f9 = new Foo<>("", ""); //new Foo<Integer> created
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        Foo<? extends String> f10 = new Foo<>("", ""); //new Foo<Integer> created
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        Foo<?> f11 = new Foo<>("", ""); //new Foo<Object> created
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        Foo<? super String> f12 = new Foo<>("", ""); //new Foo<Object> created
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        Foo<String> f13 = new Foo<>("", ""){}; //new Foo<Integer> created
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        Foo<? extends String> f14 = new Foo<>("", ""){}; //new Foo<Integer> created
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        Foo<?> f15 = new Foo<>("", ""){}; //new Foo<Object> created
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        Foo<? super String> f16 = new Foo<>("", ""){}; //new Foo<Object> created
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    }
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    void testQualified_1() {
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        Foo<String> f1 = new Neg03<U>.Foo<>(""); //new Foo<Integer> created
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        Foo<? extends String> f2 = new Neg03<U>.Foo<>(""); //new Foo<Integer> created
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        Foo<?> f3 = new Neg03<U>.Foo<>(""); //new Foo<Object> created
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        Foo<? super String> f4 = new Neg03<U>.Foo<>(""); //new Foo<Object> created
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        Foo<String> f5 = new Neg03<U>.Foo<>(""){}; //new Foo<Integer> created
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        Foo<? extends String> f6 = new Neg03<U>.Foo<>(""){}; //new Foo<Integer> created
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        Foo<?> f7 = new Neg03<U>.Foo<>(""){}; //new Foo<Object> created
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        Foo<? super String> f8 = new Neg03<U>.Foo<>(""){}; //new Foo<Object> created
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        Foo<String> f9 = new Neg03<U>.Foo<>("", ""); //new Foo<Integer> created
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        Foo<? extends String> f10 = new Neg03<U>.Foo<>("", ""); //new Foo<Integer> created
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        Foo<?> f11 = new Neg03<U>.Foo<>("", ""); //new Foo<Object> created
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        Foo<? super String> f12 = new Neg03<U>.Foo<>("", ""); //new Foo<Object> created
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        Foo<String> f13 = new Neg03<U>.Foo<>("", ""){}; //new Foo<Integer> created
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        Foo<? extends String> f14 = new Neg03<U>.Foo<>("", ""){}; //new Foo<Integer> created
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        Foo<?> f15 = new Neg03<U>.Foo<>("", ""){}; //new Foo<Object> created
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        Foo<? super String> f16 = new Neg03<U>.Foo<>("", ""){}; //new Foo<Object> created
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    }
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    void testQualified_2(Neg03<U> n) {
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        Foo<String> f1 = n.new Foo<>(""); //new Foo<Integer> created
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        Foo<? extends String> f2 = n.new Foo<>(""); //new Foo<Integer> created
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        Foo<?> f3 = n.new Foo<>(""); //new Foo<Integer> created
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        Foo<? super String> f4 = n.new Foo<>(""); //new Foo<Integer> created
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        Foo<String> f5 = n.new Foo<>(""){}; //new Foo<Integer> created
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        Foo<? extends String> f6 = n.new Foo<>(""){}; //new Foo<Integer> created
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        Foo<?> f7 = n.new Foo<>(""){}; //new Foo<Integer> created
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        Foo<? super String> f8 = n.new Foo<>(""){}; //new Foo<Integer> created
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        Foo<String> f9 = n.new Foo<>("", ""); //new Foo<Integer> created
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        Foo<? extends String> f10 = n.new Foo<>("", ""); //new Foo<Integer> created
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        Foo<?> f11 = n.new Foo<>("", ""); //new Foo<Integer> created
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        Foo<? super String> f12 = n.new Foo<>("", ""); //new Foo<Integer> created
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        Foo<String> f13 = n.new Foo<>("", ""){}; //new Foo<Integer> created
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        Foo<? extends String> f14 = n.new Foo<>("", ""){}; //new Foo<Integer> created
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        Foo<?> f15 = n.new Foo<>("", ""){}; //new Foo<Integer> created
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        Foo<? super String> f16 = n.new Foo<>("", ""){}; //new Foo<Integer> created
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    }
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}