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      1 //===-- FieldListRecordBuilder.cpp ----------------------------------------===//
      2 //
      3 //                     The LLVM Compiler Infrastructure
      4 //
      5 // This file is distributed under the University of Illinois Open Source
      6 // License. See LICENSE.TXT for details.
      7 //
      8 //===----------------------------------------------------------------------===//
      9 
     10 #include "llvm/DebugInfo/CodeView/FieldListRecordBuilder.h"
     11 
     12 using namespace llvm;
     13 using namespace codeview;
     14 
     15 FieldListRecordBuilder::FieldListRecordBuilder()
     16     : ListRecordBuilder(TypeRecordKind::FieldList) {}
     17 
     18 void FieldListRecordBuilder::writeBaseClass(const BaseClassRecord &Record) {
     19   TypeRecordBuilder &Builder = getBuilder();
     20 
     21   Builder.writeTypeRecordKind(TypeRecordKind::BaseClass);
     22   Builder.writeUInt16(static_cast<uint16_t>(Record.getAccess()));
     23   Builder.writeTypeIndex(Record.getBaseType());
     24   Builder.writeEncodedUnsignedInteger(Record.getBaseOffset());
     25 
     26   finishSubRecord();
     27 }
     28 
     29 void FieldListRecordBuilder::writeEnumerator(const EnumeratorRecord &Record) {
     30   TypeRecordBuilder &Builder = getBuilder();
     31 
     32   Builder.writeTypeRecordKind(TypeRecordKind::Enumerator);
     33   Builder.writeUInt16(static_cast<uint16_t>(Record.getAccess()));
     34   // FIXME: Handle full APInt such as __int128.
     35   Builder.writeEncodedUnsignedInteger(Record.getValue().getZExtValue());
     36   Builder.writeNullTerminatedString(Record.getName());
     37 
     38   finishSubRecord();
     39 }
     40 
     41 void FieldListRecordBuilder::writeDataMember(const DataMemberRecord &Record) {
     42   TypeRecordBuilder &Builder = getBuilder();
     43 
     44   Builder.writeTypeRecordKind(Record.getKind());
     45   Builder.writeUInt16(static_cast<uint16_t>(Record.getAccess()));
     46   Builder.writeTypeIndex(Record.getType());
     47   Builder.writeEncodedUnsignedInteger(Record.getFieldOffset());
     48   Builder.writeNullTerminatedString(Record.getName());
     49 
     50   finishSubRecord();
     51 }
     52 
     53 void FieldListRecordBuilder::writeOverloadedMethod(
     54     const OverloadedMethodRecord &Record) {
     55   TypeRecordBuilder &Builder = getBuilder();
     56 
     57   Builder.writeTypeRecordKind(TypeRecordKind::OverloadedMethod);
     58   Builder.writeUInt16(Record.getNumOverloads());
     59   Builder.writeTypeIndex(Record.getMethodList());
     60   Builder.writeNullTerminatedString(Record.getName());
     61 
     62   finishSubRecord();
     63 }
     64 
     65 void FieldListRecordBuilder::writeOneMethod(const OneMethodRecord &Record) {
     66   TypeRecordBuilder &Builder = getBuilder();
     67 
     68   uint16_t Flags = static_cast<uint16_t>(Record.getAccess());
     69   Flags |= static_cast<uint16_t>(Record.getKind()) << MethodKindShift;
     70   Flags |= static_cast<uint16_t>(Record.getOptions());
     71 
     72   Builder.writeTypeRecordKind(TypeRecordKind::OneMethod);
     73   Builder.writeUInt16(Flags);
     74   Builder.writeTypeIndex(Record.getType());
     75   if (Record.isIntroducingVirtual()) {
     76     assert(Record.getVFTableOffset() >= 0);
     77     Builder.writeInt32(Record.getVFTableOffset());
     78   } else {
     79     assert(Record.getVFTableOffset() == -1);
     80   }
     81 
     82   Builder.writeNullTerminatedString(Record.getName());
     83 
     84   finishSubRecord();
     85 }
     86 
     87 void FieldListRecordBuilder::writeNestedType(const NestedTypeRecord &Record) {
     88   TypeRecordBuilder &Builder = getBuilder();
     89 
     90   Builder.writeTypeRecordKind(Record.getKind());
     91   Builder.writeUInt16(0);
     92   Builder.writeTypeIndex(Record.getNestedType());
     93   Builder.writeNullTerminatedString(Record.getName());
     94 
     95   finishSubRecord();
     96 }
     97 
     98 void FieldListRecordBuilder::writeStaticDataMember(
     99     const StaticDataMemberRecord &Record) {
    100   TypeRecordBuilder &Builder = getBuilder();
    101 
    102   Builder.writeTypeRecordKind(Record.getKind());
    103   Builder.writeUInt16(static_cast<uint16_t>(Record.getAccess()));
    104   Builder.writeTypeIndex(Record.getType());
    105   Builder.writeNullTerminatedString(Record.getName());
    106 
    107   finishSubRecord();
    108 }
    109 
    110 void FieldListRecordBuilder::writeVirtualBaseClass(
    111     const VirtualBaseClassRecord &Record) {
    112   TypeRecordBuilder &Builder = getBuilder();
    113 
    114   Builder.writeTypeRecordKind(Record.getKind());
    115   Builder.writeUInt16(static_cast<uint16_t>(Record.getAccess()));
    116   Builder.writeTypeIndex(Record.getBaseType());
    117   Builder.writeTypeIndex(Record.getVBPtrType());
    118   Builder.writeEncodedInteger(Record.getVBPtrOffset());
    119   Builder.writeEncodedUnsignedInteger(Record.getVTableIndex());
    120 
    121   finishSubRecord();
    122 }
    123 
    124 void FieldListRecordBuilder::writeVFPtr(const VFPtrRecord &Record) {
    125   TypeRecordBuilder &Builder = getBuilder();
    126 
    127   Builder.writeTypeRecordKind(TypeRecordKind::VFPtr);
    128   Builder.writeUInt16(0);
    129   Builder.writeTypeIndex(Record.getType());
    130 
    131   finishSubRecord();
    132 }
    133