Bugzilla – Full Text Bug Listing
| Summary: | IterableExtensions should support Iterable<? extends T> | ||
|---|---|---|---|
| Product: | [Modeling] TMF | Reporter: | Benjamin Schwertfeger <benjamin.schwertfeger> |
| Component: | Xtext | Assignee: | Project Inbox <tmf.xtext-inbox> |
| Status: | CLOSED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | P3 | CC: | mail, sebastian.zarnekow |
| Version: | 2.0.0 | Flags: | sebastian.zarnekow:
indigo+
|
| Target Milestone: | SR2 | ||
| Hardware: | PC | ||
| OS: | Mac OS X - Carbon (unsup.) | ||
| Whiteboard: | |||
This is a bug in the compiler / validation and not in the iterable extensions. The generated code should look like this if the parameters' type is something with a wildcard extends:
List<? extends String> list = null;
IterableExtensions.forEach(list, new Functions.Function1<Object, String>() {
public String apply(Object p) {
return null;
}
});
The same problem exists for the ListExtensions.map function. Here the function must be of the correct type to call methods on the elements. var List<MyDslGenerator> v = new ArrayList<MyDslGenerator>(); v.add(new MyDslGenerator()); var List<? extends IGenerator> v2 = v; var m2 = v2.map(e|e.toString()) The issues are sill reproducable Pushed to master. Closing all bugs that were set to RESOLVED before Neon.0 Closing all bugs that were set to RESOLVED before Neon.0 |
Build Identifier: I20110310-1119 Xtend2 SDK: 2.0.0.v201105191503 The IterableExtensions contains many methods for Iterable-Operations. If in the .xtend-File a Set<? extends Extension> is defined, it is translated to IterableExtensions.<Extension>forEach(...). This leads to Iterable<Extension> as first required parameter, but it is a <? extends Extension>. The methods in IterablesExtension should be defined like public static final <T> void forEach(Iterable<? extends T> iterable, Function1<? super T, ?> function) { Reproducible: Always Steps to Reproduce: 1. Add this code to one xtend-File: > var List<? extends String> v = null; > v.forEach(e|e.toString()) 2. Save and let it be compiled 3. The generated Java-File contains an error