| /******************************************************************************* |
| * Copyright (c) 2015, 2016 Google, Inc and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Stefan Xenos (Google) - Initial implementation |
| *******************************************************************************/ |
| package org.eclipse.jdt.internal.core.nd.java.model; |
| |
| import org.eclipse.jdt.internal.compiler.codegen.AnnotationTargetTypeConstants; |
| import org.eclipse.jdt.internal.compiler.env.IBinaryAnnotation; |
| import org.eclipse.jdt.internal.compiler.env.IBinaryTypeAnnotation; |
| |
| public class TypeAnnotationBuilder implements ITypeAnnotationBuilder { |
| TypeAnnotationBuilder parent; |
| int kind; |
| int index; |
| int length; |
| int target; |
| int targetParameter; |
| int targetParameter2; |
| |
| private TypeAnnotationBuilder(TypeAnnotationBuilder parent, int kind, int index, |
| int length, int nextTarget, int nextTargetParameter, int nextTargetParameter2) { |
| super(); |
| this.parent = parent; |
| this.kind = kind; |
| this.index = index; |
| this.length = length; |
| this.target = nextTarget; |
| this.targetParameter = nextTargetParameter; |
| this.targetParameter2 = nextTargetParameter2; |
| } |
| |
| public static TypeAnnotationBuilder create() { |
| return new TypeAnnotationBuilder(null, 0, 0, 0, -1, -1, -1); |
| } |
| |
| private TypeAnnotationBuilder walk(int nextKind, int nextIndex) { |
| return new TypeAnnotationBuilder(this, nextKind, nextIndex, this.length+1, this.target, this.targetParameter, this.targetParameter2); |
| } |
| |
| private TypeAnnotationBuilder toTarget(int newTarget) { |
| return new TypeAnnotationBuilder(this.parent, this.kind, this.index, this.length, newTarget, this.targetParameter, this.targetParameter2); |
| } |
| |
| private TypeAnnotationBuilder toTarget(int newTarget, int parameter) { |
| return new TypeAnnotationBuilder(this.parent, this.kind, this.index, this.length, newTarget, parameter, this.targetParameter2); |
| } |
| |
| private TypeAnnotationBuilder toTarget2(int parameter) { |
| return new TypeAnnotationBuilder(this.parent, this.kind, this.index, this.length, this.target, this.targetParameter, parameter); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toField() { |
| return toTarget(AnnotationTargetTypeConstants.FIELD); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toMethodReturn() { |
| return toTarget(AnnotationTargetTypeConstants.METHOD_RETURN); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toReceiver() { |
| return toTarget(AnnotationTargetTypeConstants.METHOD_RECEIVER); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toTypeParameter(boolean isClassTypeParameter, int rank) { |
| int targetType = isClassTypeParameter ? AnnotationTargetTypeConstants.CLASS_TYPE_PARAMETER |
| : AnnotationTargetTypeConstants.METHOD_TYPE_PARAMETER; |
| return toTarget(targetType, rank); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toTypeParameterBounds(boolean isClassTypeParameter, int parameterRank) { |
| int targetType = isClassTypeParameter ? |
| AnnotationTargetTypeConstants.CLASS_TYPE_PARAMETER_BOUND : AnnotationTargetTypeConstants.METHOD_TYPE_PARAMETER_BOUND; |
| |
| return toTarget(targetType, parameterRank); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toTypeBound(short boundIndex) { |
| return toTarget2(boundIndex); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toSupertype(short superTypeIndex) { |
| return toTarget(AnnotationTargetTypeConstants.CLASS_EXTENDS, superTypeIndex); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toMethodParameter(short parameterIndex) { |
| return toTarget(AnnotationTargetTypeConstants.METHOD_FORMAL_PARAMETER, parameterIndex); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toThrows(int rank) { |
| return toTarget(AnnotationTargetTypeConstants.THROWS, rank); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toTypeArgument(int rank) { |
| return walk(AnnotationTargetTypeConstants.TYPE_ARGUMENT, rank); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toWildcardBound() { |
| return walk(AnnotationTargetTypeConstants.WILDCARD_BOUND, 0); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toNextArrayDimension() { |
| return walk(AnnotationTargetTypeConstants.NEXT_ARRAY_DIMENSION, 0); |
| } |
| |
| @Override |
| public ITypeAnnotationBuilder toNextNestedType() { |
| return walk(AnnotationTargetTypeConstants.NEXT_NESTED_TYPE, 0); |
| } |
| |
| @Override |
| public IBinaryTypeAnnotation build(IBinaryAnnotation annotation) { |
| return new IndexBinaryTypeAnnotation(this.target, this.targetParameter, this.targetParameter2, getTypePath(), annotation); |
| } |
| |
| private int[] getTypePath() { |
| if (this.length == 0) { |
| return IBinaryTypeAnnotation.NO_TYPE_PATH; |
| } |
| |
| int[] result = new int[this.length * 2]; |
| |
| TypeAnnotationBuilder next = this; |
| while (next != null && next.length > 0) { |
| int writeIdx = (next.length - 1) * 2; |
| result[writeIdx] = next.kind; |
| result[writeIdx + 1] = next.index; |
| next = next.parent; |
| } |
| |
| return result; |
| } |
| } |