1 files changed, 121 insertions, 0 deletions
diff --git a/javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/reflectionmodel/ReflectionFactory.java b/javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/reflectionmodel/ReflectionFactory.java
new file mode 100644
index 000000000..fe0fc3450
--- /dev/null
+++ b/javaparser-symbol-solver-core/src/main/java/com/github/javaparser/symbolsolver/reflectionmodel/ReflectionFactory.java
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2016 Federico Tomassetti
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.github.javaparser.symbolsolver.reflectionmodel;
+
+import com.github.javaparser.ast.AccessSpecifier;
+import com.github.javaparser.resolution.declarations.ResolvedReferenceTypeDeclaration;
+import com.github.javaparser.resolution.declarations.ResolvedTypeParameterDeclaration;
+import com.github.javaparser.resolution.types.ResolvedReferenceType;
+import com.github.javaparser.resolution.types.*;
+import com.github.javaparser.resolution.types.ResolvedTypeVariable;
+import com.github.javaparser.symbolsolver.model.resolution.TypeSolver;
+import com.github.javaparser.symbolsolver.model.typesystem.*;
+
+import java.lang.reflect.GenericArrayType;
+import java.lang.reflect.Modifier;
+import java.lang.reflect.ParameterizedType;
+import java.lang.reflect.WildcardType;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+/**
+ * @author Federico Tomassetti
+ */
+public class ReflectionFactory {
+
+    public static ResolvedReferenceTypeDeclaration typeDeclarationFor(Class<?> clazz, TypeSolver typeSolver) {
+        if (clazz.isArray()) {
+            throw new IllegalArgumentException("No type declaration available for an Array");
+        } else if (clazz.isPrimitive()) {
+            throw new IllegalArgumentException();
+        } else if (clazz.isInterface()) {
+            return new ReflectionInterfaceDeclaration(clazz, typeSolver);
+        } else if (clazz.isEnum()) {
+            return new ReflectionEnumDeclaration(clazz, typeSolver);
+        } else {
+            return new ReflectionClassDeclaration(clazz, typeSolver);
+        }
+    }
+
+    public static ResolvedType typeUsageFor(java.lang.reflect.Type type, TypeSolver typeSolver) {
+        if (type instanceof java.lang.reflect.TypeVariable) {
+            java.lang.reflect.TypeVariable<?> tv = (java.lang.reflect.TypeVariable<?>) type;
+            boolean declaredOnClass = tv.getGenericDeclaration() instanceof java.lang.reflect.Type;
+            ResolvedTypeParameterDeclaration typeParameter = new ReflectionTypeParameter(tv, declaredOnClass, typeSolver);
+            return new ResolvedTypeVariable(typeParameter);
+        } else if (type instanceof ParameterizedType) {
+            ParameterizedType pt = (ParameterizedType) type;
+            ResolvedReferenceType rawType = typeUsageFor(pt.getRawType(), typeSolver).asReferenceType();
+            List<java.lang.reflect.Type> actualTypes = new ArrayList<>();
+            actualTypes.addAll(Arrays.asList(pt.getActualTypeArguments()));
+            // we consume the actual types
+            rawType = rawType.transformTypeParameters(tp -> typeUsageFor(actualTypes.remove(0), typeSolver)).asReferenceType();
+            return rawType;
+        } else if (type instanceof Class) {
+            Class<?> c = (Class<?>) type;
+            if (c.isPrimitive()) {
+                if (c.getName().equals(Void.TYPE.getName())) {
+                    return ResolvedVoidType.INSTANCE;
+                } else {
+                    return ResolvedPrimitiveType.byName(c.getName());
+                }
+            } else if (c.isArray()) {
+                return new ResolvedArrayType(typeUsageFor(c.getComponentType(), typeSolver));
+            } else {
+                return new ReferenceTypeImpl(typeDeclarationFor(c, typeSolver), typeSolver);
+            }
+        } else if (type instanceof GenericArrayType) {
+            GenericArrayType genericArrayType = (GenericArrayType) type;
+            return new ResolvedArrayType(typeUsageFor(genericArrayType.getGenericComponentType(), typeSolver));
+        } else if (type instanceof WildcardType) {
+            WildcardType wildcardType = (WildcardType) type;
+            if (wildcardType.getLowerBounds().length > 0 && wildcardType.getUpperBounds().length > 0) {
+                if (wildcardType.getUpperBounds().length == 1 && wildcardType.getUpperBounds()[0].getTypeName().equals("java.lang.Object")) {
+                    // ok, it does not matter
+                }
+            }
+            if (wildcardType.getLowerBounds().length > 0) {
+                if (wildcardType.getLowerBounds().length > 1) {
+                    throw new UnsupportedOperationException();
+                }
+                return ResolvedWildcard.superBound(typeUsageFor(wildcardType.getLowerBounds()[0], typeSolver));
+            }
+            if (wildcardType.getUpperBounds().length > 0) {
+                if (wildcardType.getUpperBounds().length > 1) {
+                    throw new UnsupportedOperationException();
+                }
+                return ResolvedWildcard.extendsBound(typeUsageFor(wildcardType.getUpperBounds()[0], typeSolver));
+            }
+            return ResolvedWildcard.UNBOUNDED;
+        } else {
+            throw new UnsupportedOperationException(type.getClass().getCanonicalName() + " " + type);
+        }
+    }
+
+    static AccessSpecifier modifiersToAccessLevel(final int modifiers) {
+        if (Modifier.isPublic(modifiers)) {
+            return AccessSpecifier.PUBLIC;
+        } else if (Modifier.isProtected(modifiers)) {
+            return AccessSpecifier.PROTECTED;
+        } else if (Modifier.isPrivate(modifiers)) {
+            return AccessSpecifier.PRIVATE;
+        } else {
+            return AccessSpecifier.DEFAULT;
+        }
+    }
+}