109 lines
3.6 KiB
C#
109 lines
3.6 KiB
C#
//
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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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// Information about unmanaged fields and methods that may
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// be called from managed code.
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public class MetaDataImplMap: MetaDataObject {
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// Constructor Methods
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internal MetaDataImplMap(short flags, int memberForwardedIndex,
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String importName, int importScopeIndex) {
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this.flags = flags;
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this.memberForwardedIndex = memberForwardedIndex;
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this.importName = importName;
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this.importScopeIndex = importScopeIndex;
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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(MetaDataLoader loader) {
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this.memberForwarded =
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loader.getMemberForwarded(this.memberForwardedIndex);
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this.importScope = loader.getModuleRef(this.importScopeIndex);
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}
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// Access Methods
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// Bitmask described by PInvokeAttributes
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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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// The metadata object that names the unmanaged field or method
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// Returns one of MetaData{Field,Method}
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public MetaDataObject MemberForwarded {
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get {
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return this.memberForwarded;
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}
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}
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public String ImportName {
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get {
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return this.importName;
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}
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}
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public MetaDataModuleRef ImportScope {
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get {
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return this.importScope;
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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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if (this.memberForwarded == null || this.importScope == null) {
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return ("MetaDataImplMap("+this.flags.ToString("x")+","+
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this.memberForwardedIndex+","+this.importName+","+
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this.importScopeIndex+")");
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}
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else {
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return ("MetaDataImplMap("+this.flags.ToString("x")+","+
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this.memberForwarded+","+this.importName+","+
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this.importScope+")");
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}
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}
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// State
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private readonly short flags;
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private readonly int memberForwardedIndex;
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private MetaDataObject memberForwarded;
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private readonly String importName;
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private readonly int importScopeIndex;
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private MetaDataModuleRef importScope;
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// Internal Classes
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// Section 22.1.5 of ECMA spec, Section II
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public enum PInvokeAttributes {
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NoMangle = 0x0001, // Pinvoke is to use the member name as specified.
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// Character set flags
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CharSetMask = 0x0006, // Use this mask to retrieve the CharSet information.
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CharSetNotSpec = 0x0000,
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CharSetAnsi = 0x0002,
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CharSetUnicode = 0x0004,
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CharSetAuto = 0x0006,
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SupportsLastError = 0x0040, // Information about target function. Not relevant for fields.
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// None of the calling convention flags is relevant for fields.
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CallConvMask = 0x0700,
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CallConvWinapi = 0x0100, // Pinvoke will use native callconv appropriate to target windows platform.
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CallConvCdecl = 0x0200,
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CallConvStdcall = 0x0300,
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CallConvThiscall = 0x0400, // In M9, pinvoke will raise exception.
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CallConvFastcall = 0x0500
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}
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}
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}
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