74 lines
2.4 KiB
Java
74 lines
2.4 KiB
Java
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.io.*;
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import org.objectweb.asm.*;
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public class SpacesInSimpleName {
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public static void main(String args[]) throws Exception {
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String methodName = "method_with_spaces_"
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+ "20 "
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+ "a0\u00a0"
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+ "1680\u1680"
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+ "2000\u2000"
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+ "2001\u2001"
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+ "2002\u2002"
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+ "2003\u2003"
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+ "2004\u2004"
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+ "2005\u2005"
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+ "2006\u2006"
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+ "2007\u2007"
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+ "2008\u2008"
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+ "2009\u2009"
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+ "200a\u200a"
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+ "202f\u202f"
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+ "205f\u205f"
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+ "3000\u3000";
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ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
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cw.visit(Opcodes.V1_8, Opcodes.ACC_PUBLIC, "Main",
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null, "java/lang/Object", null);
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MethodVisitor mvMain = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC,
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"main", "([Ljava/lang/String;)V", null, null);
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mvMain.visitCode();
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mvMain.visitFieldInsn(Opcodes.GETSTATIC, "java/lang/System", "out",
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"Ljava/io/PrintStream;");
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mvMain.visitLdcInsn("Hello, world!");
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mvMain.visitMethodInsn(Opcodes.INVOKEVIRTUAL, "java/io/PrintStream",
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"println", "(Ljava/lang/String;)V", false);
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mvMain.visitMethodInsn(Opcodes.INVOKESTATIC, "Main", methodName, "()V", false);
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mvMain.visitInsn(Opcodes.RETURN);
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mvMain.visitMaxs(0, 0); // args are ignored with COMPUTE_MAXS
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mvMain.visitEnd();
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MethodVisitor mvSpaces = cw.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC,
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methodName, "()V", null, null);
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mvSpaces.visitCode();
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mvSpaces.visitInsn(Opcodes.RETURN);
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mvSpaces.visitMaxs(0, 0); // args are ignored with COMPUTE_MAXS
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mvSpaces.visitEnd();
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cw.visitEnd();
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byte[] b = cw.toByteArray();
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OutputStream out = new FileOutputStream("Main.class");
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out.write(b, 0, b.length);
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out.close();
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}
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}
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