| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * 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 android.databinding.tool.reflection.annotation; |
| |
| import android.databinding.tool.reflection.ModelAnalyzer; |
| import android.databinding.tool.reflection.ModelClass; |
| import android.databinding.tool.reflection.ModelField; |
| import android.databinding.tool.reflection.ModelMethod; |
| import android.databinding.tool.reflection.TypeUtil; |
| import android.databinding.tool.util.L; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import javax.lang.model.element.AnnotationMirror; |
| import javax.lang.model.element.AnnotationValue; |
| import javax.lang.model.element.Element; |
| import javax.lang.model.element.ElementKind; |
| import javax.lang.model.element.ExecutableElement; |
| import javax.lang.model.element.TypeElement; |
| import javax.lang.model.element.VariableElement; |
| import javax.lang.model.type.ArrayType; |
| import javax.lang.model.type.DeclaredType; |
| import javax.lang.model.type.PrimitiveType; |
| import javax.lang.model.type.TypeKind; |
| import javax.lang.model.type.TypeMirror; |
| import javax.lang.model.util.ElementFilter; |
| import javax.lang.model.util.Elements; |
| import javax.lang.model.util.Types; |
| |
| /** |
| * This is the implementation of ModelClass for the annotation |
| * processor. It relies on AnnotationAnalyzer. |
| */ |
| class AnnotationClass extends ModelClass { |
| |
| final TypeMirror mTypeMirror; |
| |
| public AnnotationClass(TypeMirror typeMirror) { |
| mTypeMirror = typeMirror; |
| } |
| |
| @Override |
| public String toJavaCode() { |
| if (isIncomplete()) { |
| return getCanonicalName(); |
| } |
| return mTypeMirror.toString(); |
| } |
| |
| @Override |
| public boolean isArray() { |
| return mTypeMirror.getKind() == TypeKind.ARRAY; |
| } |
| |
| @Override |
| public AnnotationClass getComponentType() { |
| TypeMirror component = null; |
| if (isArray()) { |
| component = ((ArrayType) mTypeMirror).getComponentType(); |
| } else if (isList()) { |
| for (ModelMethod method : getMethods("get", 1)) { |
| ModelClass parameter = method.getParameterTypes()[0]; |
| if (parameter.isInt() || parameter.isLong()) { |
| ArrayList<ModelClass> parameters = new ArrayList<ModelClass>(1); |
| parameters.add(parameter); |
| return (AnnotationClass) method.getReturnType(parameters); |
| } |
| } |
| // no "get" call found! |
| return null; |
| } else { |
| AnnotationClass mapClass = (AnnotationClass) ModelAnalyzer.getInstance().getMapType(); |
| DeclaredType mapType = findInterface(mapClass.mTypeMirror); |
| if (mapType == null) { |
| return null; |
| } |
| component = mapType.getTypeArguments().get(1); |
| } |
| |
| return new AnnotationClass(component); |
| } |
| |
| private DeclaredType findInterface(TypeMirror interfaceType) { |
| Types typeUtil = getTypeUtils(); |
| TypeMirror foundInterface = null; |
| if (typeUtil.isSameType(interfaceType, typeUtil.erasure(mTypeMirror))) { |
| foundInterface = mTypeMirror; |
| } else { |
| ArrayList<TypeMirror> toCheck = new ArrayList<TypeMirror>(); |
| toCheck.add(mTypeMirror); |
| while (!toCheck.isEmpty()) { |
| TypeMirror typeMirror = toCheck.remove(0); |
| if (typeUtil.isSameType(interfaceType, typeUtil.erasure(typeMirror))) { |
| foundInterface = typeMirror; |
| break; |
| } else { |
| toCheck.addAll(typeUtil.directSupertypes(typeMirror)); |
| } |
| } |
| if (foundInterface == null) { |
| L.e("Detected " + interfaceType + " type for " + mTypeMirror + |
| ", but not able to find the implemented interface."); |
| return null; |
| } |
| } |
| if (foundInterface.getKind() != TypeKind.DECLARED) { |
| L.e("Found " + interfaceType + " type for " + mTypeMirror + |
| ", but it isn't a declared type: " + foundInterface); |
| return null; |
| } |
| return (DeclaredType) foundInterface; |
| } |
| |
| @Override |
| public boolean isNullable() { |
| switch (mTypeMirror.getKind()) { |
| case ARRAY: |
| case DECLARED: |
| case NULL: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean isPrimitive() { |
| switch (mTypeMirror.getKind()) { |
| case BOOLEAN: |
| case BYTE: |
| case SHORT: |
| case INT: |
| case LONG: |
| case CHAR: |
| case FLOAT: |
| case DOUBLE: |
| return true; |
| default: |
| return false; |
| } |
| } |
| |
| @Override |
| public boolean isBoolean() { |
| return mTypeMirror.getKind() == TypeKind.BOOLEAN; |
| } |
| |
| @Override |
| public boolean isChar() { |
| return mTypeMirror.getKind() == TypeKind.CHAR; |
| } |
| |
| @Override |
| public boolean isByte() { |
| return mTypeMirror.getKind() == TypeKind.BYTE; |
| } |
| |
| @Override |
| public boolean isShort() { |
| return mTypeMirror.getKind() == TypeKind.SHORT; |
| } |
| |
| @Override |
| public boolean isInt() { |
| return mTypeMirror.getKind() == TypeKind.INT; |
| } |
| |
| @Override |
| public boolean isLong() { |
| return mTypeMirror.getKind() == TypeKind.LONG; |
| } |
| |
| @Override |
| public boolean isFloat() { |
| return mTypeMirror.getKind() == TypeKind.FLOAT; |
| } |
| |
| @Override |
| public boolean isDouble() { |
| return mTypeMirror.getKind() == TypeKind.DOUBLE; |
| } |
| |
| @Override |
| public boolean isGeneric() { |
| boolean isGeneric = false; |
| if (mTypeMirror.getKind() == TypeKind.DECLARED) { |
| DeclaredType declaredType = (DeclaredType) mTypeMirror; |
| List<? extends TypeMirror> typeArguments = declaredType.getTypeArguments(); |
| isGeneric = typeArguments != null && !typeArguments.isEmpty(); |
| } |
| return isGeneric; |
| } |
| |
| @Override |
| public int getMinApi() { |
| if (mTypeMirror.getKind() == TypeKind.DECLARED) { |
| DeclaredType declaredType = (DeclaredType) mTypeMirror; |
| List<? extends AnnotationMirror> annotations = |
| getElementUtils().getAllAnnotationMirrors(declaredType.asElement()); |
| |
| TypeElement targetApi = getElementUtils().getTypeElement("android.annotation.TargetApi"); |
| TypeMirror targetApiType = targetApi.asType(); |
| Types typeUtils = getTypeUtils(); |
| for (AnnotationMirror annotation : annotations) { |
| if (typeUtils.isAssignable(annotation.getAnnotationType(), targetApiType)) { |
| for (AnnotationValue value : annotation.getElementValues().values()) { |
| return (Integer) value.getValue(); |
| } |
| } |
| } |
| } |
| return super.getMinApi(); |
| } |
| |
| @Override |
| public List<ModelClass> getTypeArguments() { |
| List<ModelClass> types = null; |
| if (mTypeMirror.getKind() == TypeKind.DECLARED) { |
| DeclaredType declaredType = (DeclaredType) mTypeMirror; |
| List<? extends TypeMirror> typeArguments = declaredType.getTypeArguments(); |
| if (typeArguments != null && !typeArguments.isEmpty()) { |
| types = new ArrayList<ModelClass>(); |
| for (TypeMirror typeMirror : typeArguments) { |
| types.add(new AnnotationClass(typeMirror)); |
| } |
| } |
| } |
| return types; |
| } |
| |
| @Override |
| public boolean isTypeVar() { |
| return mTypeMirror.getKind() == TypeKind.TYPEVAR; |
| } |
| |
| @Override |
| public boolean isWildcard() { |
| return mTypeMirror.getKind() == TypeKind.WILDCARD; |
| } |
| |
| @Override |
| public boolean isInterface() { |
| return mTypeMirror.getKind() == TypeKind.DECLARED && |
| ((DeclaredType)mTypeMirror).asElement().getKind() == ElementKind.INTERFACE; |
| } |
| |
| @Override |
| public boolean isVoid() { |
| return mTypeMirror.getKind() == TypeKind.VOID; |
| } |
| |
| @Override |
| public AnnotationClass unbox() { |
| if (!isNullable()) { |
| return this; |
| } |
| try { |
| return new AnnotationClass(getTypeUtils().unboxedType(mTypeMirror)); |
| } catch (IllegalArgumentException e) { |
| // I'm being lazy. This is much easier than checking every type. |
| return this; |
| } |
| } |
| |
| @Override |
| public AnnotationClass box() { |
| if (!isPrimitive()) { |
| return this; |
| } |
| return new AnnotationClass(getTypeUtils().boxedClass((PrimitiveType) mTypeMirror).asType()); |
| } |
| |
| @Override |
| public boolean isAssignableFrom(ModelClass that) { |
| if (that == null) { |
| return false; |
| } |
| AnnotationClass thatAnnotationClass = (AnnotationClass) that; |
| return getTypeUtils().isAssignable(thatAnnotationClass.mTypeMirror, this.mTypeMirror); |
| } |
| |
| @Override |
| public ModelMethod[] getDeclaredMethods() { |
| final ModelMethod[] declaredMethods; |
| if (mTypeMirror.getKind() == TypeKind.DECLARED) { |
| DeclaredType declaredType = (DeclaredType) mTypeMirror; |
| Elements elementUtils = getElementUtils(); |
| TypeElement typeElement = (TypeElement) declaredType.asElement(); |
| List<? extends Element> members = elementUtils.getAllMembers(typeElement); |
| List<ExecutableElement> methods = ElementFilter.methodsIn(members); |
| declaredMethods = new ModelMethod[methods.size()]; |
| for (int i = 0; i < declaredMethods.length; i++) { |
| declaredMethods[i] = new AnnotationMethod(declaredType, methods.get(i)); |
| } |
| } else { |
| declaredMethods = new ModelMethod[0]; |
| } |
| return declaredMethods; |
| } |
| |
| @Override |
| public AnnotationClass getSuperclass() { |
| if (mTypeMirror.getKind() == TypeKind.DECLARED) { |
| DeclaredType declaredType = (DeclaredType) mTypeMirror; |
| TypeElement typeElement = (TypeElement) declaredType.asElement(); |
| TypeMirror superClass = typeElement.getSuperclass(); |
| if (superClass.getKind() == TypeKind.DECLARED) { |
| return new AnnotationClass(superClass); |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public String getCanonicalName() { |
| return getTypeUtils().erasure(mTypeMirror).toString(); |
| } |
| |
| @Override |
| public ModelClass erasure() { |
| final TypeMirror erasure = getTypeUtils().erasure(mTypeMirror); |
| if (erasure == mTypeMirror) { |
| return this; |
| } else { |
| return new AnnotationClass(erasure); |
| } |
| } |
| |
| @Override |
| public String getJniDescription() { |
| return TypeUtil.getInstance().getDescription(this); |
| } |
| |
| @Override |
| protected ModelField[] getDeclaredFields() { |
| final ModelField[] declaredFields; |
| if (mTypeMirror.getKind() == TypeKind.DECLARED) { |
| DeclaredType declaredType = (DeclaredType) mTypeMirror; |
| Elements elementUtils = getElementUtils(); |
| TypeElement typeElement = (TypeElement) declaredType.asElement(); |
| List<? extends Element> members = elementUtils.getAllMembers(typeElement); |
| List<VariableElement> fields = ElementFilter.fieldsIn(members); |
| declaredFields = new ModelField[fields.size()]; |
| for (int i = 0; i < declaredFields.length; i++) { |
| declaredFields[i] = new AnnotationField(typeElement, fields.get(i)); |
| } |
| } else { |
| declaredFields = new ModelField[0]; |
| } |
| return declaredFields; |
| } |
| |
| @Override |
| public boolean equals(Object obj) { |
| if (obj instanceof AnnotationClass) { |
| return getTypeUtils().isSameType(mTypeMirror, ((AnnotationClass) obj).mTypeMirror); |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public int hashCode() { |
| return mTypeMirror.toString().hashCode(); |
| } |
| |
| private static Types getTypeUtils() { |
| return AnnotationAnalyzer.get().mProcessingEnv.getTypeUtils(); |
| } |
| |
| private static Elements getElementUtils() { |
| return AnnotationAnalyzer.get().mProcessingEnv.getElementUtils(); |
| } |
| |
| @Override |
| public String toString() { |
| return mTypeMirror.toString(); |
| } |
| } |