Java 7: pretty-print diamond syntax

[GerardPaligot]

For the support of java 7, spoon must support diamond syntax. It support already (yeah!) but not totally. Here is an example to illustrate the "problem":

DiamondExample is a class ready to be spooned.

public class DiamondExample {
    public void col() {
        Collection<String> coll = new ArrayList<>();

        Collection<String> coll2 = new ArrayList();

        Collection<String> coll3 = new ArrayList<String>();
    }
}

The output of spoon is:

public class DiamondExample {
    public void col() {
        java.util.Collection<java.lang.String> coll = new java.util.ArrayList<java.lang.String>();
        java.util.Collection<java.lang.String> coll2 = new java.util.ArrayList();
        java.util.Collection<java.lang.String> coll3 = new java.util.ArrayList<java.lang.String>();
    }
}

So, when spoon detects a diamond syntax, it replaces with the right implementation. So the result is valid and support java 7 but the output isn't java 7.

Good thing or not? I would like reviews about this from the community. :)

[seintur]

Same remark as for Issue #97. I would prefer to stay as close as possible to Java 7.

Lionel.

[GerardPaligot]

Well, this issue was discussed internal. We think we don't want to have the correct java 7 syntax for the diamond syntax. Unlike of multi catch, diamond is syntactic sugar, not really a new feature. Maybe, this can be a feature interesting when we will refactors the DefaultJavaPrettyPrinter but, for now, we will keep this current result.