Stefanos Chaliasos created GROOVY-10127:
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Summary: STC misses type check in Generic class with a bounded
type parameter
Key: GROOVY-10127
URL: https://issues.apache.org/jira/browse/GROOVY-10127
Project: Groovy
Issue Type: Bug
Components: Static compilation, Static Type Checker
Affects Versions: 4.0.0-alpha-3, 3.0.8
Reporter: Stefanos Chaliasos
I have the following Groovy program.
{code:groovy}
public class Main {
public static void main(String[] args) {
new Foo<B>().foo(new B()).m()
}
}
class A{}
class B extends A{
void m() {}
}
@groovy.transform.TypeChecked
class Foo<T extends A> {
T foo(T x) {
x = new A(); // does not catch the error;
}
}
{code}
h2. Actual Behavior
Runtime error.
{code:java}
Caught: groovy.lang.MissingMethodException: No signature of method: A.m() is
applicable for argument types: () values: []
Possible solutions: is(java.lang.Object), NV([Ljava.lang.Object;), any(),
dump(), any(groovy.lang.Closure), tap(groovy.lang.Closure)
groovy.lang.MissingMethodException: No signature of method: A.m() is applicable
for argument types: () values: []
Possible solutions: is(java.lang.Object), NV([Ljava.lang.Object;), any(),
dump(), any(groovy.lang.Closure), tap(groovy.lang.Closure)
at Main.main(Main.groovy:3)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at
java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
{code}
h2. Expected Behavior
groovyc should reject the program with a compile-time error.
h2. Affected Version
This programs have been tested with the compiler from the master (commit:
05a39632565bee88949c8db9d56b9f9598321fc2), 4.0.0-alpha-3, and 3.0.8.
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