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/*
* System.Reflection-like API for access to .NET assemblies (DLL & EXE)
*/
package ch.epfl.lamp.compiler.msil;
import ch.epfl.lamp.compiler.msil.util.PECustomMod;
/**
* Discovers the attributes of a field and provides access to field metadata.
*
* @author Nikolay Mihaylov
* @version 1.0
*/
public class FieldInfo extends MemberInfo implements HasCustomModifiers {
//##########################################################################
// public interface
public final int MemberType() { return MemberTypes.Field; }
/** Attributes associated with this field. */
public final short Attributes;
/** Type of the field represented by this FieldInfo object. */
public final Type FieldType;
/** can be null */
public final CustomModifier[] cmods;
protected final Object value;
public final boolean IsStatic() {
return (Attributes & FieldAttributes.Static) != 0;
}
public final boolean IsInitOnly() {
return (Attributes & FieldAttributes.InitOnly) != 0;
}
public final boolean IsLiteral() {
return (Attributes & FieldAttributes.Literal) != 0;
}
public final boolean IsPublic() {
return (Attributes & FieldAttributes.FieldAccessMask)
== FieldAttributes.Public;
}
public final boolean IsPrivate() {
return (Attributes & FieldAttributes.FieldAccessMask)
== FieldAttributes.Private;
}
public final boolean IsFamily() {
return (Attributes & FieldAttributes.FieldAccessMask)
== FieldAttributes.Family;
}
public final boolean IsAssembly() {
return (Attributes & FieldAttributes.FieldAccessMask)
== FieldAttributes.Assembly;
}
public final boolean IsFamilyOrAssembly() {
return (Attributes & FieldAttributes.FieldAccessMask)
== FieldAttributes.FamORAssem;
}
public final boolean IsFamilyAndAssembly() {
return (Attributes & FieldAttributes.FieldAccessMask)
== FieldAttributes.FamANDAssem;
}
public final boolean IsSpecialName() {
return (Attributes & FieldAttributes.SpecialName) != 0;
}
public final boolean IsPinvokeImpl() {
return (Attributes & FieldAttributes.PinvokeImpl) != 0;
}
public final boolean IsNotSerialized() {
return (Attributes & FieldAttributes.NotSerialized) != 0;
}
private boolean knownVolatile = false;
private boolean cachedVolatile = false;
public final boolean IsVolatile() {
if(knownVolatile) return cachedVolatile;
knownVolatile = true;
if(cmods == null) {
cachedVolatile = false;
return cachedVolatile;
}
for (int idx = 0; idx < cmods.length; idx++) {
if(cmods[idx].marker == CustomModifier.VolatileMarker()) {
cachedVolatile = true;
return cachedVolatile;
}
}
cachedVolatile = false;
return cachedVolatile;
}
public final Type[] GetOptionalCustomModifiers () {
return CustomModifier.helperCustomMods(false, cmods);
}
public final Type[] GetRequiredCustomModifiers() {
return CustomModifier.helperCustomMods(true, cmods);
}
public String toString() {
return FieldAttributes.toString(Attributes) + " " +
FieldType + " " + DeclaringType.FullName + "::" + Name;
}
//##########################################################################
protected static final FieldInfo[] EMPTY_ARRAY = new FieldInfo[0];
/** Initializes a new instance of the FieldInfo class. */
protected FieldInfo(String name, Type declType,
int attrs, PECustomMod fieldTypeWithMods, Object value)
{
super(name, declType);
FieldType = fieldTypeWithMods.marked;
cmods = fieldTypeWithMods.cmods;
Attributes = (short) attrs;
this.value = value;
}
/**
*/
public Object getValue() { return value; }
//##########################################################################
} // class FieldInfo
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