105 lines
2.9 KiB
C#
105 lines
2.9 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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//-----------------------------------------------------------------------------
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using System;
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namespace Microsoft.Cci.Pdb {
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internal class PdbScope {
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internal PdbConstant[] constants;
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internal PdbSlot[] slots;
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internal PdbScope[] scopes;
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internal string[] usedNamespaces;
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internal uint segment;
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internal uint address;
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internal uint length;
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internal PdbScope(uint funcAddress, BlockSym32 block, BitAccess bits, out uint typind) {
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this.segment = block.seg;
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this.address = block.off - funcAddress;
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this.length = block.len;
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typind = 0;
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int constantCount;
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int scopeCount;
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int slotCount;
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int namespaceCount;
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PdbFunction.CountScopesAndSlots(bits, block.end, out constantCount, out scopeCount, out slotCount, out namespaceCount);
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constants = new PdbConstant[constantCount];
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scopes = new PdbScope[scopeCount];
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slots = new PdbSlot[slotCount];
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usedNamespaces = new string[namespaceCount];
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int constant = 0;
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int scope = 0;
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int slot = 0;
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int usedNs = 0;
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while (bits.Position < block.end) {
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ushort siz;
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ushort rec;
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bits.ReadUInt16(out siz);
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int star = bits.Position;
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int stop = bits.Position + siz;
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bits.Position = star;
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bits.ReadUInt16(out rec);
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switch ((SYM)rec) {
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case SYM.S_BLOCK32: {
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BlockSym32 sub = new BlockSym32();
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bits.ReadUInt32(out sub.parent);
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bits.ReadUInt32(out sub.end);
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bits.ReadUInt32(out sub.len);
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bits.ReadUInt32(out sub.off);
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bits.ReadUInt16(out sub.seg);
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bits.SkipCString(out sub.name);
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bits.Position = stop;
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scopes[scope++] = new PdbScope(funcAddress, sub, bits, out typind);
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break;
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}
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case SYM.S_MANSLOT:
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slots[slot++] = new PdbSlot(bits, out typind);
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bits.Position = stop;
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break;
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case SYM.S_UNAMESPACE:
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bits.ReadCString(out usedNamespaces[usedNs++]);
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bits.Position = stop;
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break;
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case SYM.S_END:
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bits.Position = stop;
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break;
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case SYM.S_MANCONSTANT:
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constants[constant++] = new PdbConstant(bits);
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bits.Position = stop;
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break;
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default:
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throw new PdbException("Unknown SYM in scope {0}", (SYM)rec);
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// bits.Position = stop;
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}
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}
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if (bits.Position != block.end) {
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throw new Exception("Not at S_END");
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}
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ushort esiz;
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ushort erec;
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bits.ReadUInt16(out esiz);
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bits.ReadUInt16(out erec);
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if (erec != (ushort)SYM.S_END) {
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throw new Exception("Missing S_END");
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}
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}
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}
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}
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