/**
* Creates a public abstract method. The created method must be added to a class with <code>
* CtClass.addMethod()</code>.
*
* @param declaring the class to which the created method is added.
* @param returnType the type of the returned value
* @param mname the method name
* @param parameters a list of the parameter types
* @see CtClass#addMethod(CtMethod)
*/
public CtMethod(CtClass returnType, String mname, CtClass[] parameters, CtClass declaring) {
this(null, declaring);
ConstPool cp = declaring.getClassFile2().getConstPool();
String desc = Descriptor.ofMethod(returnType, parameters);
methodInfo = new MethodInfo(cp, mname, desc);
setModifiers(Modifier.PUBLIC | Modifier.ABSTRACT);
}
/**
* Replace a method body with a new method body wrapping the given method.
*
* @param mbody the wrapped method
* @param constParam the constant parameter given to the wrapped method (maybe <code>null</code>).
* @see
* CtNewMethod#wrapped(CtClass,String,CtClass[],CtClass[],CtMethod,CtMethod.ConstParameter,CtClass)
*/
public void setWrappedBody(CtMethod mbody, ConstParameter constParam)
throws CannotCompileException {
declaringClass.checkModify();
CtClass clazz = getDeclaringClass();
CtClass[] params;
CtClass retType;
try {
params = getParameterTypes();
retType = getReturnType();
} catch (NotFoundException e) {
throw new CannotCompileException(e);
}
Bytecode code =
CtNewWrappedMethod.makeBody(
clazz, clazz.getClassFile2(), mbody, params, retType, constParam);
CodeAttribute cattr = code.toCodeAttribute();
methodInfo.setCodeAttribute(cattr);
methodInfo.setAccessFlags(methodInfo.getAccessFlags() & ~AccessFlag.ABSTRACT);
// rebuilding a stack map table is not needed.
}
/**
* Creates a method from a <code>MethodInfo</code> object.
*
* @param declaring the class declaring the method.
* @throws CannotCompileException if the the <code>MethodInfo</code> object and the declaring
* class have different <code>ConstPool</code> objects
* @since 3.6
*/
public static CtMethod make(MethodInfo minfo, CtClass declaring) throws CannotCompileException {
if (declaring.getClassFile2().getConstPool() != minfo.getConstPool())
throw new CannotCompileException("bad declaring class");
return new CtMethod(minfo, declaring);
}
