Christopher Smith created GROOVY-10888:
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Summary: Parser doesn't accept wildcard in type witness
Key: GROOVY-10888
URL: https://issues.apache.org/jira/browse/GROOVY-10888
Project: Groovy
Issue Type: Bug
Components: parser-antlr4
Affects Versions: 4.0.7
Reporter: Christopher Smith
In trying to work around issues relating to nested generic inference (in stream
collector definitions), I attempted to add a type witness to a {{.collect}}
invocation. As I don't care about the accumulator, and the built-in
{{Collectors}} tend to use {{A=?}}, I tried a wildcard, but I got a parse
error. This replicates the problem.
{code}
class Asdf {
void run() {
['a', 'b'].stream()
.<Map<Boolean, List<String>>, ?> collect(partitioningBy { it == 'a' })
}
}
{code}
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