Examples with MethodCode io.nuls.contract.vm.code.MethodCode used on opensource projects

Example 1 with MethodCode

use of io.nuls.contract.vm.code.MethodCode in project nuls by nuls-io.

the class Heap method runNewObjectWithArgs.

public ObjectRef runNewObjectWithArgs(VariableType variableType, String methodDesc, Object... args) {
    ClassCode classCode = this.vm.methodArea.loadClass(variableType.getType());
    ObjectRef objectRef = newObject(classCode);
    MethodCode methodCode = this.vm.methodArea.loadMethod(objectRef.getVariableType().getType(), Constants.CONSTRUCTOR_NAME, methodDesc);
    if (methodCode == null) {
        throw new RuntimeException(String.format("can't new %s", variableType.getType()));
    }
    Object[] runArgs = new Object[args.length + 1];
    runArgs[0] = objectRef;
    for (int i = 1; i < runArgs.length; i++) {
        runArgs[i] = args[i - 1];
    }
    this.vm.run(methodCode, runArgs, false);
    return objectRef;
}

Example 2 with MethodCode

use of io.nuls.contract.vm.code.MethodCode in project nuls by nuls-io.

the class NativeAbstractStringBuilder method append.

/**
 * override
 *
 * @see AbstractStringBuilder#append(float)
 * @see AbstractStringBuilder#append(double)
 */
private static Result append(MethodCode methodCode, MethodArgs methodArgs, Frame frame) {
    ObjectRef objectRef = methodArgs.objectRef;
    Object a = methodArgs.invokeArgs[0];
    ObjectRef ref = frame.heap.newString(a.toString());
    MethodCode append = frame.methodArea.loadMethod(TYPE, "append", "(Ljava/lang/String;)Ljava/lang/AbstractStringBuilder;");
    frame.vm.run(append, new Object[] { objectRef, ref }, false);
    Result result = NativeMethod.result(methodCode, objectRef, frame);
    return result;
}

Example 3 with MethodCode

use of io.nuls.contract.vm.code.MethodCode in project nuls by nuls-io.

the class Invokestatic method invokestatic.

public static void invokestatic(Frame frame) {
    MethodInsnNode methodInsnNode = frame.methodInsnNode();
    String className = methodInsnNode.owner;
    String methodName = methodInsnNode.name;
    String methodDesc = methodInsnNode.desc;
    MethodCode methodCode = frame.methodArea.loadMethod(className, methodName, methodDesc);
    MethodArgs methodArgs = new MethodArgs(methodCode.argsVariableType, frame.operandStack, true);
    // Log.opcode(frame.getCurrentOpCode(), className, methodName, methodDesc);
    Result result = NativeMethod.run(methodCode, methodArgs, frame);
    if (result != null) {
        return;
    }
    frame.vm.run(methodCode, methodArgs.frameArgs, true);
}

Example 4 with MethodCode

use of io.nuls.contract.vm.code.MethodCode in project nuls by nuls-io.

the class Invokespecial method invokespecial.

public static void invokespecial(Frame frame) {
    MethodInsnNode methodInsnNode = frame.methodInsnNode();
    String className = methodInsnNode.owner;
    String methodName = methodInsnNode.name;
    String methodDesc = methodInsnNode.desc;
    MethodCode methodCode = frame.methodArea.loadMethod(className, methodName, methodDesc);
    MethodArgs methodArgs = new MethodArgs(methodCode.argsVariableType, frame.operandStack, false);
    ObjectRef objectRef = methodArgs.objectRef;
    if (objectRef == null) {
        frame.throwNullPointerException();
        return;
    }
    if (Constants.OBJECT_CLASS_NAME.equals(className) && Constants.CONSTRUCTOR_NAME.equals(methodName)) {
        return;
    }
    Result result = NativeMethod.run(methodCode, methodArgs, frame);
    if (result != null) {
        return;
    }
    frame.vm.run(methodCode, methodArgs.frameArgs, true);
}

Example 5 with MethodCode

use of io.nuls.contract.vm.code.MethodCode in project nuls by nuls-io.

the class MethodArea method loadMethod.

public MethodCode loadMethod(String className, String methodName, String methodDesc) {
    String fullName;
    if (StringUtils.isNotEmpty(methodDesc)) {
        fullName = className + "." + methodName + methodDesc;
    } else {
        fullName = className + "." + methodName;
    }
    MethodCode methodCode = INIT_METHOD_CODES.get(fullName);
    if (methodCode != null) {
        return methodCode;
    }
    methodCode = methodCodes.get(fullName);
    if (methodCode != null) {
        return methodCode;
    }
    ClassCode classCode = loadClass(className);
    methodCode = classCode.getMethodCode(methodName, methodDesc);
    if (methodCode == null && classCode.superName != null) {
        methodCode = loadSuperMethod(classCode.superName, methodName, methodDesc);
    }
    if (methodCode == null) {
        for (String interfaceName : classCode.interfaces) {
            methodCode = loadMethod(interfaceName, methodName, methodDesc);
            if (methodCode != null) {
                break;
            }
        }
    }
    methodCodes.put(fullName, methodCode);
    return methodCode;
}