GROOVY-10153

Author: eric-milles

base-test/org.eclipse.jdt.groovy.core.tests.compiler/src/org/eclipse/jdt/groovy/core/tests/xform/TypeCheckedTests.java

@@ -4271,6 +4271,36 @@ public void testTypeChecked10128() {
         runConformTest(sources);
     }
 
+    @Test
+    public void testTypeChecked10153() {
+        //@formatter:off
+        String[] sources = {
+            "Main.groovy",
+            "class A {}\n" +
+            "class B extends A {}\n" +
+            "class C extends B {}\n" +
+            "class Foo<T extends A> {}\n" +
+            "@groovy.transform.TypeChecked\n" +
+            "void test() {\n" +
+            "  Foo<? super C> foo = new Foo<B>()\n" + // ? is not a valid substitute for <T extends A>
+            "}\n" +
+            "test()\n",
+        };
+        //@formatter:on
+
+        if (isAtLeastGroovy(30)) {
+            runConformTest(sources);
+        } else {
+            runNegativeTest(sources,
+                "----------\n" +
+                "1. ERROR in Main.groovy (at line 7)\n" +
+                "\tFoo<? super C> foo = new Foo<B>()\n" +
+                "\t    ^^^^^^^^^\n" +
+                "Groovy:The type ? is not a valid substitute for the bounded parameter <T extends A>\n" +
+                "----------\n");
+        }
+    }
+
     @Test
     public void testTypeChecked10166() {
         //@formatter:off

base/org.codehaus.groovy30/src/org/codehaus/groovy/control/ResolveVisitor.java

@@ -76,6 +76,7 @@
 import java.util.ListIterator;
 import java.util.Map;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.Set;
 import java.util.function.Predicate;
 
@@ -544,7 +545,9 @@ protected boolean resolve(final ClassNode type, final boolean testModuleImports,
             type.setGenericsPlaceHolder(true);
             return true;
         }
-
+        // GRECLIPSE add
+        try {
+        // GRECLIPSE end
         if (currentClass.getNameWithoutPackage().equals(typeName)) {
             type.setRedirect(currentClass);
             return true;
@@ -556,6 +559,21 @@ protected boolean resolve(final ClassNode type, final boolean testModuleImports,
                 (testDefaultImports && !type.hasPackageName() && resolveFromDefaultImports(type, true)) ||
                 resolveToOuter(type) ||
                 (testStaticInnerClasses && type.hasPackageName() && resolveFromStaticInnerClasses(type, true));
+        // GRECLIPSE add -- GROOVY-10153: deal with "Foo<? super Bar> -> Foo<T extends Baz>"
+        } finally {
+            if (type.isRedirectNode()) Optional.ofNullable(type.getGenericsTypes()).ifPresent(arguments -> {
+                for (int i = 0, n = arguments.length; i < n; i += 1) { GenericsType argument = arguments[i];
+                    if (!argument.isWildcard() || argument.getUpperBounds() != null) continue;
+                    GenericsType[] parameters = type.redirect().getGenericsTypes();
+                    if (parameters != null && i < parameters.length) {
+                        ClassNode implicitBound = parameters[i].getType();
+                        if (!implicitBound.equals(ClassHelper.OBJECT_TYPE))
+                            argument.getType().setRedirect(implicitBound);
+                    }
+                }
+            });
+        }
+        // GRECLIPSE end
     }
 
     protected boolean resolveNestedClass(final ClassNode type) {

base/org.codehaus.groovy40/src/org/codehaus/groovy/control/ResolveVisitor.java

@@ -75,6 +75,7 @@
 import java.util.ListIterator;
 import java.util.Map;
 import java.util.Objects;
+import java.util.Optional;
 import java.util.Set;
 import java.util.function.Predicate;
 
@@ -457,7 +458,9 @@ protected boolean resolve(final ClassNode type, final boolean testModuleImports,
             type.setGenericsPlaceHolder(true);
             return true;
         }
-
+        // GRECLIPSE add
+        try {
+        // GRECLIPSE end
         if (currentClass.getNameWithoutPackage().equals(typeName)) {
             type.setRedirect(currentClass);
             return true;
@@ -469,6 +472,21 @@ protected boolean resolve(final ClassNode type, final boolean testModuleImports,
                 (testDefaultImports && !type.hasPackageName() && resolveFromDefaultImports(type, true)) ||
                 resolveToOuter(type) ||
                 (testStaticInnerClasses && type.hasPackageName() && resolveFromStaticInnerClasses(type, true));
+        // GRECLIPSE add -- GROOVY-10153: deal with "Foo<? super Bar> -> Foo<T extends Baz>"
+        } finally {
+            if (type.isRedirectNode()) Optional.ofNullable(type.getGenericsTypes()).ifPresent(arguments -> {
+                for (int i = 0, n = arguments.length; i < n; i += 1) { GenericsType argument = arguments[i];
+                    if (!argument.isWildcard() || argument.getUpperBounds() != null) continue;
+                    GenericsType[] parameters = type.redirect().getGenericsTypes();
+                    if (parameters != null && i < parameters.length) {
+                        ClassNode implicitBound = parameters[i].getType();
+                        if (!isObjectType(implicitBound))
+                            argument.getType().setRedirect(implicitBound);
+                    }
+                }
+            });
+        }
+        // GRECLIPSE end
     }
 
     protected boolean resolveNestedClass(final ClassNode type) {