[GROOVY-9529] Static type checking сannot choose between Map#getAt(Object) and Object#getAt(String) methods

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.0.3
• Fix Version/s: 4.0.0-alpha-1, 3.0.4
• Component/s: Static compilation
• Assignee: Eric Milles
• Reporter: Aleksey
• Created: 27/Apr/20 19:04
• Updated: 24/Aug/22 21:24
• Resolved: 05/May/20 23:29

Description

Script:

import groovy.transform.CompileStatic

interface SimpleFeatureMap extends Map<Object, Object> {}
interface FeatureMap extends SimpleFeatureMap{}
class FeatureMapImpl extends HashMap<Object, Object> implements FeatureMap {}

@CompileStatic
class Test {
    FeatureMap newMap() {
        new FeatureMapImpl()
    }
    String test() {
        FeatureMap map = newMap()
        map['asd']
    }
}

new Test().test()

Result:

org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
ideaGroovyConsole.groovy: 14: [Static type checking] - Reference to method is ambiguous. Cannot choose between [V java.util.Map <K, V>#getAt(java.lang.Object), java.lang.Object java.lang.Object#getAt(java.lang.String)]
 @ line 14, column 9.
           map['asd']
           ^

1 error

	at org.codehaus.groovy.control.ErrorCollector.failIfErrors(ErrorCollector.java:287)
	at org.codehaus.groovy.control.CompilationUnit$IPrimaryClassNodeOperation.doPhaseOperation(CompilationUnit.java:963)
	at org.codehaus.groovy.control.CompilationUnit.processPhaseOperations(CompilationUnit.java:650)
	at org.codehaus.groovy.control.CompilationUnit.compile(CompilationUnit.java:627)
	at groovy.lang.GroovyClassLoader.doParseClass(GroovyClassLoader.java:389)
	at groovy.lang.GroovyClassLoader.lambda$parseClass$3(GroovyClassLoader.java:332)
	at org.codehaus.groovy.runtime.memoize.StampedCommonCache.compute(StampedCommonCache.java:163)
	at org.codehaus.groovy.runtime.memoize.StampedCommonCache.getAndPut(StampedCommonCache.java:154)
	at groovy.lang.GroovyClassLoader.parseClass(GroovyClassLoader.java:330)
	at groovy.lang.GroovyShell.parseClass(GroovyShell.java:526)
	at groovy.lang.GroovyShell.run(GroovyShell.java:359)
	at groovy.lang.GroovyShell.run(GroovyShell.java:339)