reading annotations from bytecode

(without fields yet)

compiler/frontend/src/org/jetbrains/jet/lang/descriptors/LazySubstitutingClassDescriptor.java

@@ -133,7 +133,7 @@ public class LazySubstitutingClassDescriptor implements ClassDescriptor {
 
     @Override
     public List<AnnotationDescriptor> getAnnotations() {
-        throw new UnsupportedOperationException(); // TODO
+        return original.getAnnotations();
     }
 
     @NotNull

compiler/frontend/src/org/jetbrains/jet/lang/descriptors/MutableClassDescriptorLite.java

@@ -40,7 +40,7 @@ public class MutableClassDescriptorLite extends MutableDeclarationDescriptor imp
     private ConstructorDescriptor primaryConstructor;
     private final Set<ConstructorDescriptor> constructors = Sets.newLinkedHashSet();
 
-    private final List<AnnotationDescriptor> annotations = Lists.newArrayList();
+    private List<AnnotationDescriptor> annotations = Lists.newArrayList();
 
     private Map<String, ClassDescriptor> innerClassesAndObjects = Maps.newHashMap();
 
@@ -342,4 +342,8 @@ public class MutableClassDescriptorLite extends MutableDeclarationDescriptor imp
     public List<AnnotationDescriptor> getAnnotations() {
         return annotations;
     }
+
+    public void setAnnotations(List<AnnotationDescriptor> annotations) {
+        this.annotations = annotations;
+    }
 }

compiler/frontend/src/org/jetbrains/jet/lang/descriptors/annotations/AnnotationDescriptor.java

@@ -17,9 +17,11 @@
 package org.jetbrains.jet.lang.descriptors.annotations;
 
 import org.jetbrains.annotations.NotNull;
+import org.jetbrains.jet.lang.descriptors.ClassDescriptor;
 import org.jetbrains.jet.lang.resolve.constants.CompileTimeConstant;
 import org.jetbrains.jet.lang.types.JetType;
 
+import javax.rmi.CORBA.ClassDesc;
 import java.util.List;
 
 /**
@@ -40,6 +42,9 @@ public class AnnotationDescriptor {
     }
 
     public void setAnnotationType(@NotNull JetType annotationType) {
+        if (!(annotationType.getConstructor().getDeclarationDescriptor() instanceof ClassDescriptor)) {
+            throw new IllegalStateException();
+        }
         this.annotationType = annotationType;
     }