1/*
2 * Copyright (C) 2008 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.tools.layoutlib.create;
18
19import com.android.tools.layoutlib.annotations.VisibleForTesting;
20import com.android.tools.layoutlib.annotations.VisibleForTesting.Visibility;
21
22import org.objectweb.asm.AnnotationVisitor;
23import org.objectweb.asm.Attribute;
24import org.objectweb.asm.ClassVisitor;
25import org.objectweb.asm.FieldVisitor;
26import org.objectweb.asm.MethodVisitor;
27import org.objectweb.asm.Opcodes;
28
29/**
30 * Indicates if a class contains any native methods.
31 */
32public class ClassHasNativeVisitor implements ClassVisitor {
33
34    private boolean mHasNativeMethods = false;
35
36    public boolean hasNativeMethods() {
37        return mHasNativeMethods;
38    }
39
40    @VisibleForTesting(visibility=Visibility.PRIVATE)
41    protected void setHasNativeMethods(boolean hasNativeMethods, String methodName) {
42        mHasNativeMethods = hasNativeMethods;
43    }
44
45    public void visit(int version, int access, String name, String signature,
46            String superName, String[] interfaces) {
47        // pass
48    }
49
50    public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
51        // pass
52        return null;
53    }
54
55    public void visitAttribute(Attribute attr) {
56        // pass
57    }
58
59    public void visitEnd() {
60        // pass
61    }
62
63    public FieldVisitor visitField(int access, String name, String desc,
64            String signature, Object value) {
65        // pass
66        return null;
67    }
68
69    public void visitInnerClass(String name, String outerName,
70            String innerName, int access) {
71        // pass
72    }
73
74    public MethodVisitor visitMethod(int access, String name, String desc,
75            String signature, String[] exceptions) {
76        if ((access & Opcodes.ACC_NATIVE) != 0) {
77            setHasNativeMethods(true, name);
78        }
79        return null;
80    }
81
82    public void visitOuterClass(String owner, String name, String desc) {
83        // pass
84    }
85
86    public void visitSource(String source, String debug) {
87        // pass
88    }
89
90}
91