| 1 | /* |
|---|---|
| 2 | * Copyright (C) 2007-2010 Júlio Vilmar Gesser. |
| 3 | * Copyright (C) 2011, 2013-2020 The JavaParser Team. |
| 4 | * |
| 5 | * This file is part of JavaParser. |
| 6 | * |
| 7 | * JavaParser can be used either under the terms of |
| 8 | * a) the GNU Lesser General Public License as published by |
| 9 | * the Free Software Foundation, either version 3 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * b) the terms of the Apache License |
| 12 | * |
| 13 | * You should have received a copy of both licenses in LICENCE.LGPL and |
| 14 | * LICENCE.APACHE. Please refer to those files for details. |
| 15 | * |
| 16 | * JavaParser is distributed in the hope that it will be useful, |
| 17 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 19 | * GNU Lesser General Public License for more details. |
| 20 | */ |
| 21 | |
| 22 | package com.github.javaparser.ast.nodeTypes; |
| 23 | |
| 24 | import com.github.javaparser.ast.Node; |
| 25 | import com.github.javaparser.ast.NodeList; |
| 26 | import com.github.javaparser.ast.type.TypeParameter; |
| 27 | |
| 28 | import static com.github.javaparser.StaticJavaParser.parseTypeParameter; |
| 29 | |
| 30 | /** |
| 31 | * A node that can have type parameters. |
| 32 | * <pre> |
| 33 | * class X {} --> typeParameters == [] |
| 34 | * class X<> {} --> does not occur. |
| 35 | * class X<C,D> {} --> typeParameters = [C,D] |
| 36 | * </pre> |
| 37 | */ |
| 38 | public interface NodeWithTypeParameters<N extends Node> { |
| 39 | NodeList<TypeParameter> getTypeParameters(); |
| 40 | |
| 41 | default TypeParameter getTypeParameter(int i) { |
| 42 | return getTypeParameters().get(i); |
| 43 | } |
| 44 | |
| 45 | @SuppressWarnings("unchecked") |
| 46 | default N setTypeParameter(int i, TypeParameter typeParameter) { |
| 47 | getTypeParameters().set(i, typeParameter); |
| 48 | return (N) this; |
| 49 | } |
| 50 | |
| 51 | @SuppressWarnings("unchecked") |
| 52 | default N addTypeParameter(TypeParameter typeParameter) { |
| 53 | getTypeParameters().add(typeParameter); |
| 54 | return (N) this; |
| 55 | } |
| 56 | |
| 57 | /** |
| 58 | * Adds a type parameter like {@code X extends Serializable} |
| 59 | */ |
| 60 | default N addTypeParameter(String typeParameter) { |
| 61 | return addTypeParameter(parseTypeParameter(typeParameter)); |
| 62 | } |
| 63 | |
| 64 | N setTypeParameters(NodeList<TypeParameter> typeParameters); |
| 65 | |
| 66 | default boolean isGeneric() { |
| 67 | return getTypeParameters().size() > 0; |
| 68 | } |
| 69 | } |
| 70 |
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