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| 1 | +/* |
| 2 | + * This Java source file was generated by the Gradle 'init' task. |
| 3 | + */ |
| 4 | +package asm.use; |
| 5 | + |
| 6 | +import java.io.File; |
| 7 | +import java.io.FileInputStream; |
| 8 | +import java.io.FileOutputStream; |
| 9 | +import java.io.PrintWriter; |
| 10 | +import java.nio.file.Paths; |
| 11 | +import org.objectweb.asm.ClassReader; |
| 12 | +import org.objectweb.asm.ClassVisitor; |
| 13 | +import org.objectweb.asm.ClassWriter; |
| 14 | +import org.objectweb.asm.Opcodes; |
| 15 | +import org.objectweb.asm.util.TraceClassVisitor; |
| 16 | + |
| 17 | +public class App { |
| 18 | + static String relPathToSource = "build/classes/java/main/asm/use/WillHaveSourceFileNameTransformed.class"; |
| 19 | + static String relPathToTarget = "build/classes/java/main/asm/use/MockCfFile.class"; |
| 20 | + |
| 21 | + public String getGreeting() { |
| 22 | + System.out.println(ClassReader.class); |
| 23 | + return "Hello World! (oye) lel"; |
| 24 | + } |
| 25 | + |
| 26 | + static byte[] readSource() throws Throwable { |
| 27 | + String absPathToSource = Paths.get(relPathToSource).toAbsolutePath().toString(); |
| 28 | + File source = new File(absPathToSource); |
| 29 | + byte[] result = new byte[(int)source.length()]; |
| 30 | + FileInputStream fis = new FileInputStream(source); |
| 31 | + int bs = fis.read(result); |
| 32 | + System.out.println("Read " + bs + " bytes"); |
| 33 | + fis.close(); |
| 34 | + return result; |
| 35 | + } |
| 36 | + |
| 37 | + static void writeTarget(byte[] bytes) throws Throwable { |
| 38 | + String absPathToTarget = Paths.get(relPathToTarget).toAbsolutePath().toString(); |
| 39 | + File target = new File(absPathToTarget); |
| 40 | + System.out.println(target); |
| 41 | + |
| 42 | + if (target.exists()) { |
| 43 | + target.delete(); |
| 44 | + target.createNewFile(); |
| 45 | + } |
| 46 | + |
| 47 | + FileOutputStream fos = new FileOutputStream(target); |
| 48 | + fos.write(bytes); |
| 49 | + fos.close(); |
| 50 | + } |
| 51 | + |
| 52 | + public static void main(String[] args) throws Throwable { |
| 53 | + byte[] source = readSource(); |
| 54 | + |
| 55 | + ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS); |
| 56 | + |
| 57 | + ClassVisitor visitor = new ClassVisitor(Opcodes.ASM9, cw) { |
| 58 | + @Override |
| 59 | + public void visitSource(String source, String debug) { |
| 60 | + super.visitSource("/some/abs/project/path/Foo.cfc", null); |
| 61 | + } |
| 62 | + }; |
| 63 | + |
| 64 | + ClassReader reader = new ClassReader(source); |
| 65 | + |
| 66 | + reader.accept(visitor, 0); |
| 67 | + |
| 68 | + byte[] transformed = cw.toByteArray(); |
| 69 | + |
| 70 | + writeTarget(transformed); |
| 71 | + |
| 72 | + System.out.println("OK?"); |
| 73 | + } |
| 74 | +} |
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