105 lines
2.7 KiB
C#
105 lines
2.7 KiB
C#
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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using System;
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namespace Bartok.MSIL
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{
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public class MetaDataParam: MetaDataObject {
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// Constructor Methods
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internal MetaDataParam(short flags, short sequence, String name) {
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this.flags = flags;
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this.sequence = sequence;
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this.name = name;
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}
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// This is technically not a constructor method, but it is meant to
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// be used to set up the object
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internal void resolveReferences(MetaDataMethod parent) {
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this.parent = parent;
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}
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internal void resolveReferences(MetaDataConstant constant) {
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this.constant = constant;
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}
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// Access Methods
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// Bitmask described by ParamAttributes
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public short Flags {
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get {
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return this.flags;
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}
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}
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public short Sequence {
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get {
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return this.sequence;
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}
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}
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public String Name {
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get {
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return this.name;
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}
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}
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public MetaDataMethod Parent {
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get {
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return this.parent;
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}
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}
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public Object DefaultValue {
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get {
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if ((this.flags & (int) ParamAttributes.HasDefault) != 0) {
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return this.constant.Value;
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}
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else {
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return null;
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}
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}
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}
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// Debug Methods
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public override String ToString() {
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return ("MetaDataParam("+this.name+")");
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}
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public override String ToStringLong() {
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return ("MetaDataParam("+this.flags.ToString("x")+","+this.sequence+
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","+this.name+"<"+this.parent+">)");
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}
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// State
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private readonly short flags;
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private readonly short sequence;
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private readonly String name;
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private MetaDataMethod parent;
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private MetaDataConstant constant;
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// Internal Classes
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// Section 22.1.9 of ECMA spec, Section II
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// also found in Lightning\Src\inc\CorHdr.h
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public enum ParamAttributes {
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In = 0x0001, // Param is [In]
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Out = 0x0002, // Param is [out]
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Optional = 0x0010, // Param is optional
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// Reserved flags for Runtime use only.
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ReservedMask = 0xf000,
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HasDefault = 0x1000, // Param has default value.
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HasFieldMarshal = 0x2000, // Param has FieldMarshal.
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Unused = 0xcfe0
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}
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}
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}
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