org.objectweb.asm.util.Printer Java Examples

The following examples show how to use org.objectweb.asm.util.Printer. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: AsmTestUtils.java From grappa with Apache License 2.0

7 votes

public static String getMethodInstructionList(final MethodNode methodNode) {
    Preconditions.checkNotNull(methodNode, "methodNode");
    final Printer printer = new NonMaxTextifier();
    final TraceMethodVisitor traceMethodVisitor = new TraceMethodVisitor(printer);
    methodNode.accept(traceMethodVisitor);
    final StringWriter stringWriter = new StringWriter();
    final PrintWriter printWriter = new PrintWriter(stringWriter);
    printer.print(printWriter);
    printWriter.flush();
    final String[] lines = PATTERN.split(stringWriter.toString());
    int lineNr = 0;
    for (int i = 0; i < lines.length; i++) {
        if (!lines[i].startsWith("  @")) {
            lines[i] = String.format("%2d %s", lineNr++, lines[i]);
        }
    }
    return "Method '" + methodNode.name + "':\n"
        + NEWLINE.join(lines) + '\n';
}

Example #2

Source File: MethodASMifier.java From CodeChickenCore with MIT License

6 votes

public static void printMethod(ObfMapping method, byte[] bytes, Printer printer, File toFile) {
    try {
        if (!toFile.getParentFile().exists())
            toFile.getParentFile().mkdirs();
        if (!toFile.exists())
            toFile.createNewFile();

        PrintWriter printWriter = new PrintWriter(toFile);

        ClassVisitor cv = new MethodASMifier(method, printer, printWriter);
        ClassReader cr = new ClassReader(bytes);
        cr.accept(cv, 0);

        printWriter.close();
    } catch (Exception e) {
        e.printStackTrace();
    }
}

Example #3

Source File: TypeUtils.java From maple-ir with GNU General Public License v3.0

6 votes

public static Type getPrimitiveArrayType(int opcode) {
	switch (opcode) {
		case T_BOOLEAN:
			return Type.getType("[Z");
		case T_BYTE:
			return Type.getType("[B");
		case T_SHORT:
			return Type.getType("[S");
		case T_CHAR:
			return Type.getType("[C");
		case T_INT:
			return Type.getType("[I");
		case T_LONG:
			return Type.getType("[J");
		case T_FLOAT:
			return Type.getType("[F");
		case T_DOUBLE:
			return Type.getType("[D");
		default:
			throw new IllegalArgumentException(Printer.OPCODES[opcode]);
	}
}

Example #4

Source File: ConditionalJumpStmt.java From maple-ir with GNU General Public License v3.0

6 votes

public static ComparisonType getType(int opcode) {
	switch (opcode) {
		case Opcodes.IF_ACMPEQ:
		case Opcodes.IF_ICMPEQ:
		case Opcodes.IFEQ:
			return EQ;
		case Opcodes.IF_ACMPNE:
		case Opcodes.IF_ICMPNE:
		case Opcodes.IFNE:
			return NE;
		case Opcodes.IF_ICMPGT:
		case Opcodes.IFGT:
			return GT;
		case Opcodes.IF_ICMPGE:
		case Opcodes.IFGE:
			return GE;
		case Opcodes.IF_ICMPLT:
		case Opcodes.IFLT:
			return LT;
		case Opcodes.IF_ICMPLE:
		case Opcodes.IFLE:
			return LE;
		default:
			throw new IllegalArgumentException(Printer.OPCODES[opcode]);
	}
}

Example #5

Source File: ExtraTextifier.java From TickDynamic with MIT License

6 votes

@Override
public void visitLdcInsn(final Object cst) {
    buf.setLength(0);
    buf.append(tab2).append("LDC ");
    if (cst instanceof String) {
        Printer.appendString(buf, (String) cst);
    } else if(cst instanceof Float) {
    	buf.append(cst).append("F");
    } else if(cst instanceof Double) {
    	buf.append(cst).append("D");
    } else if(cst instanceof Long) {
    	buf.append(cst).append("L");
    } else if (cst instanceof Type) {
        buf.append(((Type) cst).getDescriptor()).append(".class");
    } else {
        buf.append(cst);
    }
    buf.append('\n');
    text.add(buf.toString());
}

Example #6

Source File: ClassFileStructurePrinter.java From scott with MIT License

6 votes

public static void viewByteCode(byte[] bytecode) {
	ClassReader classReader = new ClassReader(bytecode);
	ClassNode classNode = new ClassNode();
	classReader.accept(classNode, 0);
	final List<MethodNode> methodNodes = classNode.methods;
	Printer printer = new Textifier();
	TraceMethodVisitor traceMethodVisitor = new TraceMethodVisitor(printer);
	
	for (MethodNode methodNode : methodNodes) {
		InsnList insnList = methodNode.instructions;
		System.out.println(methodNode.name);
		for (int i = 0; i < insnList.size(); i++) {
			insnList.get(i).accept(traceMethodVisitor);
			StringWriter sw = new StringWriter();
			printer.print(new PrintWriter(sw));
			printer.getText().clear();
			System.out.print(sw.toString());
		}
	}
}

Example #7

Source File: Helper.java From instrumentation with Apache License 2.0

6 votes

public static void viewByteCode(byte[] bytecode) {
    ClassReader cr = new ClassReader(bytecode);
    ClassNode cn = new ClassNode();
    cr.accept(cn, 0);
    final List<MethodNode> mns = cn.methods;
    Printer printer = new Textifier();
    TraceMethodVisitor mp = new TraceMethodVisitor(printer);
    for (MethodNode mn : mns) {
        InsnList inList = mn.instructions;
        System.out.println(mn.name);
        for (int i = 0; i < inList.size(); i++) {
            inList.get(i).accept(mp);
            StringWriter sw = new StringWriter();
            printer.print(new PrintWriter(sw));
            printer.getText().clear();
            System.out.print(sw.toString());
        }
    }
}

Example #8