[GROOVY-9347] STC: lambda expression on wildcard generics fail to resolve param type(s)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.0-rc-2
• Fix Version/s: 3.0.0-rc-3
• Assignee: Eric Milles
• Reporter: Eric Milles
• Created: 19/Dec/19 19:33
• Updated: 27/Jan/20 00:44
• Resolved: 21/Dec/19 10:13

Description

Follow up to GROOVY-9342. Consider the following:

@groovy.transform.CompileStatic
class Test1 {
    static int acc = 1
    static { [1, 2, 3].forEach(e -> acc += e) }
}
assert Test1.acc == 7

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
    TestScript60.groovy: 5: [Static type checking] - Cannot find matching method int#plus(java.lang.Object). Please check if the declared type is correct and if the method exists.
     @ line 5, column 49.
       atic { [1, 2, 3].forEach(e -> acc += e)
                                     ^

    1 error
        at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:287)
        at org.codehaus.groovy.control.CompilationUnit.applyToPrimaryClassNodes(CompilationUnit.java:1091)
        at org.codehaus.groovy.control.CompilationUnit.doPhaseOperation(CompilationUnit.java:633)
        at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:612)
        at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:589)
        at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:367)
        at groovy.lang.GroovyClassLoader.lambda$parseClass$2(GroovyClassLoader.java:310)
        ...

Issue Links

• links to: GitHub Pull Request #1127