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/*
* System.Reflection-like API for access to .NET assemblies (DLL & EXE)
*/
package ch.epfl.lamp.compiler.msil;
/** Specifies flags for method attributes.
*
* @author Nikolay Mihaylov
* @version 1.0
*/
public final class MethodAttributes {
//##########################################################################
// Method access attributes
/** Bitmask used to retrieve accessibility information. */
public static final short MemberAccessMask = 0x0007;
///** Member not referenceable*/
//public static final short CompilerConstrolled = 0x0000;
/** Indicates that the member cannot be referenced. */
public static final short PrivateScope = 0x0000;
/** Method is accessible only by the current class. */
public static final short Private = 0x0001;
/** Method is accessible to members of this type
* and its derived types that are in this assembly only. */
public static final short FamANDAssem = 0x0002;
/** Method is accessible to any class of this assembly. */
public static final short Assembly = 0x0003;
/** Method is accessible only to members of this class
* and its derived classes. */
public static final short Family = 0x0004;
/** Method is accessible to derived classes anywhere,
* as well as to any class in the assembly. */
public static final short FamORAssem = 0x0005;
/** Method is accessible to any object for which this object is in scope. */
public static final short Public = 0x0006;
//##########################################################################
// Flags
/** Method is defined on the type; otherwise, it is defined per instance. */
public static final short Static = 0x0010;
/** Method cannot be overridden. */
public static final short Final = 0x0020;
/** Method is virtual. */
public static final short Virtual = 0x0040;
/** Method hides by name and signature; otherwise, by name only. */
public static final short HideBySig = 0x0080;
//##########################################################################
// vtable attributes
/** Bitmask used to retrieve vtable attributes. */
public static final short VtableLayoutMask = 0x0100;
/** Method reuses existing slot in the vtable. */
public static final short ReuseSlot = 0x0000;
/** Method always gets a new slot in the vtable. */
public static final short NewSlot = 0x0100;
//##########################################################################
// Flags
/** Method does not provide implementation. */
public static final short Abstract = 0x0400;
/** Method is special. */
public static final short SpecialName = 0x0800;
//##########################################################################
// Interop attributes
/** Method implementation is forwarded through PInvoke. */
public static final short PInvokeImpl = 0x2000;
/** Reserved: shall be zero for conforming implementations.
* Managed method is exported by thunk to unmanaged code. */
public static final short UnmanagedExport = 0x0008;
//##########################################################################
// Additional flags
/** CLI provides special behavior, depending on the name of the method. */
public static final short RTSpecialName = 0x1000;
/** Method has security associated with it.
* Reserved flag for runtime use only.
*/
public static final short HasSecurity = 0x00000040;
/**
* Indicates that the method calls another method containing security code.
* Reserved flag for runtime use only.
*/
public static final short RequireSecObject = 0x00004000;
/** Indicates a reserved flag for runtime use only. */
public static final short ReservedMask = 0x0000;
//##########################################################################
public static String toString(short attrs) {
StringBuffer str = new StringBuffer(accessFlagsToString(attrs));
if ((attrs & Static) != 0) str.append(" static");
if ((attrs & Final) != 0) str.append(" final");
if ((attrs & Virtual) != 0) str.append(" virtual");
if ((attrs & Abstract) != 0) str.append(" abstract");
if ((attrs & HideBySig) != 0) str.append(" hidebysig");
if ((attrs & NewSlot) != 0) str.append(" newslot");
if ((attrs & SpecialName) != 0) str.append(" specialname");
if ((attrs & PInvokeImpl) != 0) str.append(" pinvokeimpl(?!?)");
if ((attrs & RTSpecialName) != 0) str.append(" rtspecialname");
return str.toString();
}
public static String accessFlagsToString(short attrs) {
switch (attrs & MemberAccessMask) {
case PrivateScope: return "compilercontrolled";
case Private: return "private";
case FamANDAssem: return "famandassem";
case Assembly: return "assembly";
case Family: return "family";
case FamORAssem: return "famorassem";
case Public: return "public";
default: return "xxx";
}
}
//##########################################################################
// makes the class uninstantiable
private MethodAttributes() {}
//##########################################################################
} // class Method Attributes
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