xref: /llvm-project/llvm/lib/Demangle/MicrosoftDemangleNodes.cpp (revision 5094e5ef8bd40b30efc22825b7413de180114946) 
1 //===- MicrosoftDemangle.cpp ----------------------------------------------===//
2 //
3 //                     The LLVM Compiler Infrastructure
4 //
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9 //
10 // This file defines a demangler for MSVC-style mangled symbols.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #include "llvm/Demangle/MicrosoftDemangleNodes.h"
15 #include "llvm/Demangle/DemangleConfig.h"
16 #include "llvm/Demangle/Utility.h"
17 #include <cctype>
18 #include <string>
19 
20 using namespace llvm;
21 using namespace ms_demangle;
22 
23 #define OUTPUT_ENUM_CLASS_VALUE(Enum, Value, Desc)                             \
24   case Enum::Value:                                                            \
25     OS << Desc;                                                                \
26     break;
27 
28 // Writes a space if the last token does not end with a punctuation.
29 static void outputSpaceIfNecessary(OutputStream &OS) {
30   if (OS.empty())
31     return;
32 
33   char C = OS.back();
34   if (std::isalnum(C) || C == '>')
35     OS << " ";
36 }
37 
38 static bool outputSingleQualifier(OutputStream &OS, Qualifiers Q) {
39   switch (Q) {
40   case Q_Const:
41     OS << "const";
42     return true;
43   case Q_Volatile:
44     OS << "volatile";
45     return true;
46   case Q_Restrict:
47     OS << "__restrict";
48     return true;
49   default:
50     break;
51   }
52   return false;
53 }
54 
55 static bool outputQualifierIfPresent(OutputStream &OS, Qualifiers Q,
56                                      Qualifiers Mask, bool NeedSpace) {
57   if (!(Q & Mask))
58     return NeedSpace;
59 
60   if (NeedSpace)
61     OS << " ";
62 
63   outputSingleQualifier(OS, Mask);
64   return true;
65 }
66 
67 static void outputQualifiers(OutputStream &OS, Qualifiers Q, bool SpaceBefore,
68                              bool SpaceAfter) {
69   if (Q == Q_None)
70     return;
71 
72   size_t Pos1 = OS.getCurrentPosition();
73   SpaceBefore = outputQualifierIfPresent(OS, Q, Q_Const, SpaceBefore);
74   SpaceBefore = outputQualifierIfPresent(OS, Q, Q_Volatile, SpaceBefore);
75   SpaceBefore = outputQualifierIfPresent(OS, Q, Q_Restrict, SpaceBefore);
76   size_t Pos2 = OS.getCurrentPosition();
77   if (SpaceAfter && Pos2 > Pos1)
78     OS << " ";
79 }
80 
81 static void outputCallingConvention(OutputStream &OS, CallingConv CC) {
82   outputSpaceIfNecessary(OS);
83 
84   switch (CC) {
85   case CallingConv::Cdecl:
86     OS << "__cdecl";
87     break;
88   case CallingConv::Fastcall:
89     OS << "__fastcall";
90     break;
91   case CallingConv::Pascal:
92     OS << "__pascal";
93     break;
94   case CallingConv::Regcall:
95     OS << "__regcall";
96     break;
97   case CallingConv::Stdcall:
98     OS << "__stdcall";
99     break;
100   case CallingConv::Thiscall:
101     OS << "__thiscall";
102     break;
103   case CallingConv::Eabi:
104     OS << "__eabi";
105     break;
106   case CallingConv::Vectorcall:
107     OS << "__vectorcall";
108     break;
109   case CallingConv::Clrcall:
110     OS << "__clrcall";
111     break;
112   default:
113     break;
114   }
115 }
116 
117 std::string Node::toString(OutputFlags Flags) const {
118   OutputStream OS;
119   initializeOutputStream(nullptr, nullptr, OS, 1024);
120   this->output(OS, Flags);
121   OS << '\0';
122   return {OS.getBuffer()};
123 }
124 
125 void TypeNode::outputQuals(bool SpaceBefore, bool SpaceAfter) const {}
126 
127 void PrimitiveTypeNode::outputPre(OutputStream &OS, OutputFlags Flags) const {
128   switch (PrimKind) {
129     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Void, "void");
130     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Bool, "bool");
131     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Char, "char");
132     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Schar, "signed char");
133     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Uchar, "unsigned char");
134     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Char16, "char16_t");
135     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Char32, "char32_t");
136     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Short, "short");
137     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Ushort, "unsigned short");
138     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Int, "int");
139     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Uint, "unsigned int");
140     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Long, "long");
141     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Ulong, "unsigned long");
142     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Int64, "__int64");
143     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Uint64, "unsigned __int64");
144     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Wchar, "wchar_t");
145     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Float, "float");
146     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Double, "double");
147     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Ldouble, "long double");
148     OUTPUT_ENUM_CLASS_VALUE(PrimitiveKind, Nullptr, "std::nullptr_t");
149   }
150   outputQualifiers(OS, Quals, true, false);
151 }
152 
153 void NodeArrayNode::output(OutputStream &OS, OutputFlags Flags) const {
154   output(OS, Flags, ", ");
155 }
156 
157 void NodeArrayNode::output(OutputStream &OS, OutputFlags Flags,
158                            StringView Separator) const {
159   if (Count == 0)
160     return;
161   if (Nodes[0])
162     Nodes[0]->output(OS, Flags);
163   for (size_t I = 1; I < Count; ++I) {
164     OS << Separator;
165     Nodes[I]->output(OS, Flags);
166   }
167 }
168 
169 void EncodedStringLiteralNode::output(OutputStream &OS,
170                                       OutputFlags Flags) const {
171   switch (Char) {
172   case CharKind::Wchar:
173     OS << "L\"";
174     break;
175   case CharKind::Char:
176     OS << "\"";
177     break;
178   case CharKind::Char16:
179     OS << "u\"";
180     break;
181   case CharKind::Char32:
182     OS << "U\"";
183     break;
184   }
185   OS << DecodedString << "\"";
186   if (IsTruncated)
187     OS << "...";
188 }
189 
190 void IntegerLiteralNode::output(OutputStream &OS, OutputFlags Flags) const {
191   if (IsNegative)
192     OS << '-';
193   OS << Value;
194 }
195 
196 void TemplateParameterReferenceNode::output(OutputStream &OS,
197                                             OutputFlags Flags) const {
198   if (ThunkOffsetCount > 0)
199     OS << "{";
200   else if (Affinity == PointerAffinity::Pointer)
201     OS << "&";
202 
203   if (Symbol) {
204     Symbol->output(OS, Flags);
205     if (ThunkOffsetCount > 0)
206       OS << ", ";
207   }
208 
209   if (ThunkOffsetCount > 0)
210     OS << ThunkOffsets[0];
211   for (int I = 1; I < ThunkOffsetCount; ++I) {
212     OS << ", " << ThunkOffsets[I];
213   }
214   if (ThunkOffsetCount > 0)
215     OS << "}";
216 }
217 
218 void IdentifierNode::outputTemplateParameters(OutputStream &OS,
219                                               OutputFlags Flags) const {
220   if (!TemplateParams)
221     return;
222   OS << "<";
223   TemplateParams->output(OS, Flags);
224   OS << ">";
225 }
226 
227 void DynamicStructorIdentifierNode::output(OutputStream &OS,
228                                            OutputFlags Flags) const {
229   if (IsDestructor)
230     OS << "`dynamic atexit destructor for ";
231   else
232     OS << "`dynamic initializer for ";
233 
234   if (Variable) {
235     OS << "`";
236     Variable->output(OS, Flags);
237     OS << "''";
238   } else {
239     OS << "'";
240     Name->output(OS, Flags);
241     OS << "''";
242   }
243 }
244 
245 void NamedIdentifierNode::output(OutputStream &OS, OutputFlags Flags) const {
246   OS << Name;
247   outputTemplateParameters(OS, Flags);
248 }
249 
250 void IntrinsicFunctionIdentifierNode::output(OutputStream &OS,
251                                              OutputFlags Flags) const {
252   switch (Operator) {
253     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, New, "operator new");
254     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Delete, "operator delete");
255     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Assign, "operator=");
256     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, RightShift, "operator>>");
257     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LeftShift, "operator<<");
258     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LogicalNot, "operator!");
259     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Equals, "operator==");
260     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, NotEquals, "operator!=");
261     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ArraySubscript,
262                             "operator[]");
263     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Pointer, "operator->");
264     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Increment, "operator++");
265     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Decrement, "operator--");
266     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Minus, "operator-");
267     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Plus, "operator+");
268     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Dereference, "operator*");
269     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, BitwiseAnd, "operator&");
270     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, MemberPointer,
271                             "operator->*");
272     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Divide, "operator/");
273     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Modulus, "operator%");
274     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LessThan, "operator<");
275     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LessThanEqual, "operator<=");
276     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, GreaterThan, "operator>");
277     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, GreaterThanEqual,
278                             "operator>=");
279     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Comma, "operator,");
280     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Parens, "operator()");
281     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, BitwiseNot, "operator~");
282     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, BitwiseXor, "operator^");
283     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, BitwiseOr, "operator|");
284     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LogicalAnd, "operator&&");
285     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LogicalOr, "operator||");
286     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, TimesEqual, "operator*=");
287     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, PlusEqual, "operator+=");
288     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, MinusEqual, "operator-=");
289     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, DivEqual, "operator/=");
290     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ModEqual, "operator%=");
291     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, RshEqual, "operator>>=");
292     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LshEqual, "operator<<=");
293     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, BitwiseAndEqual,
294                             "operator&=");
295     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, BitwiseOrEqual,
296                             "operator|=");
297     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, BitwiseXorEqual,
298                             "operator^=");
299     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VbaseDtor, "`vbase dtor'");
300     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VecDelDtor,
301                             "`vector deleting dtor'");
302     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, DefaultCtorClosure,
303                             "`default ctor closure'");
304     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ScalarDelDtor,
305                             "`scalar deleting dtor'");
306     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VecCtorIter,
307                             "`vector ctor iterator'");
308     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VecDtorIter,
309                             "`vector dtor iterator'");
310     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VecVbaseCtorIter,
311                             "`vector vbase ctor iterator'");
312     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VdispMap,
313                             "`virtual displacement map'");
314     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, EHVecCtorIter,
315                             "`eh vector ctor iterator'");
316     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, EHVecDtorIter,
317                             "`eh vector dtor iterator'");
318     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, EHVecVbaseCtorIter,
319                             "`eh vector vbase ctor iterator'");
320     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, CopyCtorClosure,
321                             "`copy ctor closure'");
322     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, LocalVftableCtorClosure,
323                             "`local vftable ctor closure'");
324     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ArrayNew, "operator new[]");
325     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ArrayDelete,
326                             "operator delete[]");
327     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ManVectorCtorIter,
328                             "`managed vector ctor iterator'");
329     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ManVectorDtorIter,
330                             "`managed vector dtor iterator'");
331     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, EHVectorCopyCtorIter,
332                             "`EH vector copy ctor iterator'");
333     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, EHVectorVbaseCopyCtorIter,
334                             "`EH vector vbase copy ctor iterator'");
335     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VectorCopyCtorIter,
336                             "`vector copy ctor iterator'");
337     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, VectorVbaseCopyCtorIter,
338                             "`vector vbase copy constructor iterator'");
339     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, ManVectorVbaseCopyCtorIter,
340                             "`managed vector vbase copy constructor iterator'");
341     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, CoAwait, "co_await");
342     OUTPUT_ENUM_CLASS_VALUE(IntrinsicFunctionKind, Spaceship, "operator <=>");
343   case IntrinsicFunctionKind::MaxIntrinsic:
344   case IntrinsicFunctionKind::None:
345     break;
346   }
347   outputTemplateParameters(OS, Flags);
348 }
349 
350 void LocalStaticGuardIdentifierNode::output(OutputStream &OS,
351                                             OutputFlags Flags) const {
352   OS << "`local static guard'";
353   if (ScopeIndex > 0)
354     OS << "{" << ScopeIndex << "}";
355 }
356 
357 void ConversionOperatorIdentifierNode::output(OutputStream &OS,
358                                               OutputFlags Flags) const {
359   OS << "operator";
360   outputTemplateParameters(OS, Flags);
361   OS << " ";
362   TargetType->output(OS, Flags);
363 }
364 
365 void StructorIdentifierNode::output(OutputStream &OS, OutputFlags Flags) const {
366   if (IsDestructor)
367     OS << "~";
368   Class->output(OS, Flags);
369   outputTemplateParameters(OS, Flags);
370 }
371 
372 void LiteralOperatorIdentifierNode::output(OutputStream &OS,
373                                            OutputFlags Flags) const {
374   OS << "operator \"\"" << Name;
375   outputTemplateParameters(OS, Flags);
376 }
377 
378 void FunctionSignatureNode::outputPre(OutputStream &OS,
379                                       OutputFlags Flags) const {
380   if (FunctionClass & FC_Public)
381     OS << "public: ";
382   if (FunctionClass & FC_Protected)
383     OS << "protected: ";
384   if (FunctionClass & FC_Private)
385     OS << "private: ";
386 
387   if (!(FunctionClass & FC_Global)) {
388     if (FunctionClass & FC_Static)
389       OS << "static ";
390   }
391   if (FunctionClass & FC_Virtual)
392     OS << "virtual ";
393 
394   if (FunctionClass & FC_ExternC)
395     OS << "extern \"C\" ";
396 
397   if (ReturnType) {
398     ReturnType->outputPre(OS, Flags);
399     OS << " ";
400   }
401 
402   if (!(Flags & OF_NoCallingConvention))
403     outputCallingConvention(OS, CallConvention);
404 }
405 
406 void FunctionSignatureNode::outputPost(OutputStream &OS,
407                                        OutputFlags Flags) const {
408   if (!(FunctionClass & FC_NoParameterList)) {
409     OS << "(";
410     if (Params)
411       Params->output(OS, Flags);
412     else
413       OS << "void";
414     OS << ")";
415   }
416 
417   if (Quals & Q_Const)
418     OS << " const";
419   if (Quals & Q_Volatile)
420     OS << " volatile";
421   if (Quals & Q_Restrict)
422     OS << " __restrict";
423   if (Quals & Q_Unaligned)
424     OS << " __unaligned";
425 
426   if (IsNoexcept)
427     OS << " noexcept";
428 
429   if (RefQualifier == FunctionRefQualifier::Reference)
430     OS << " &";
431   else if (RefQualifier == FunctionRefQualifier::RValueReference)
432     OS << " &&";
433 
434   if (ReturnType)
435     ReturnType->outputPost(OS, Flags);
436 }
437 
438 void ThunkSignatureNode::outputPre(OutputStream &OS, OutputFlags Flags) const {
439   OS << "[thunk]: ";
440 
441   FunctionSignatureNode::outputPre(OS, Flags);
442 }
443 
444 void ThunkSignatureNode::outputPost(OutputStream &OS, OutputFlags Flags) const {
445   if (FunctionClass & FC_StaticThisAdjust) {
446     OS << "`adjustor{" << ThisAdjust.StaticOffset << "}'";
447   } else if (FunctionClass & FC_VirtualThisAdjust) {
448     if (FunctionClass & FC_VirtualThisAdjustEx) {
449       OS << "`vtordispex{" << ThisAdjust.VBPtrOffset << ", "
450          << ThisAdjust.VBOffsetOffset << ", " << ThisAdjust.VtordispOffset
451          << ", " << ThisAdjust.StaticOffset << "}'";
452     } else {
453       OS << "`vtordisp{" << ThisAdjust.VtordispOffset << ", "
454          << ThisAdjust.StaticOffset << "}'";
455     }
456   }
457 
458   FunctionSignatureNode::outputPost(OS, Flags);
459 }
460 
461 void PointerTypeNode::outputPre(OutputStream &OS, OutputFlags Flags) const {
462   if (Pointee->kind() == NodeKind::FunctionSignature) {
463     // If this is a pointer to a function, don't output the calling convention.
464     // It needs to go inside the parentheses.
465     const FunctionSignatureNode *Sig =
466         static_cast<const FunctionSignatureNode *>(Pointee);
467     Sig->outputPre(OS, OF_NoCallingConvention);
468   } else
469     Pointee->outputPre(OS, Flags);
470 
471   outputSpaceIfNecessary(OS);
472 
473   if (Quals & Q_Unaligned)
474     OS << "__unaligned ";
475 
476   if (Pointee->kind() == NodeKind::ArrayType) {
477     OS << "(";
478   } else if (Pointee->kind() == NodeKind::FunctionSignature) {
479     OS << "(";
480     const FunctionSignatureNode *Sig =
481         static_cast<const FunctionSignatureNode *>(Pointee);
482     outputCallingConvention(OS, Sig->CallConvention);
483     OS << " ";
484   }
485 
486   if (ClassParent) {
487     ClassParent->output(OS, Flags);
488     OS << "::";
489   }
490 
491   switch (Affinity) {
492   case PointerAffinity::Pointer:
493     OS << "*";
494     break;
495   case PointerAffinity::Reference:
496     OS << "&";
497     break;
498   case PointerAffinity::RValueReference:
499     OS << "&&";
500     break;
501   default:
502     assert(false);
503   }
504   outputQualifiers(OS, Quals, false, false);
505 }
506 
507 void PointerTypeNode::outputPost(OutputStream &OS, OutputFlags Flags) const {
508   if (Pointee->kind() == NodeKind::ArrayType ||
509       Pointee->kind() == NodeKind::FunctionSignature)
510     OS << ")";
511 
512   Pointee->outputPost(OS, Flags);
513 }
514 
515 void TagTypeNode::outputPre(OutputStream &OS, OutputFlags Flags) const {
516   if (!(Flags & OF_NoTagSpecifier)) {
517     switch (Tag) {
518       OUTPUT_ENUM_CLASS_VALUE(TagKind, Class, "class");
519       OUTPUT_ENUM_CLASS_VALUE(TagKind, Struct, "struct");
520       OUTPUT_ENUM_CLASS_VALUE(TagKind, Union, "union");
521       OUTPUT_ENUM_CLASS_VALUE(TagKind, Enum, "enum");
522     }
523     OS << " ";
524   }
525   QualifiedName->output(OS, Flags);
526   outputQualifiers(OS, Quals, true, false);
527 }
528 
529 void TagTypeNode::outputPost(OutputStream &OS, OutputFlags Flags) const {}
530 
531 void ArrayTypeNode::outputPre(OutputStream &OS, OutputFlags Flags) const {
532   ElementType->outputPre(OS, Flags);
533   outputQualifiers(OS, Quals, true, false);
534 }
535 
536 void ArrayTypeNode::outputOneDimension(OutputStream &OS, OutputFlags Flags,
537                                        Node *N) const {
538   assert(N->kind() == NodeKind::IntegerLiteral);
539   IntegerLiteralNode *ILN = static_cast<IntegerLiteralNode *>(N);
540   if (ILN->Value != 0)
541     ILN->output(OS, Flags);
542 }
543 
544 void ArrayTypeNode::outputDimensionsImpl(OutputStream &OS,
545                                          OutputFlags Flags) const {
546   if (Dimensions->Count == 0)
547     return;
548 
549   outputOneDimension(OS, Flags, Dimensions->Nodes[0]);
550   for (size_t I = 1; I < Dimensions->Count; ++I) {
551     OS << "][";
552     outputOneDimension(OS, Flags, Dimensions->Nodes[I]);
553   }
554 }
555 
556 void ArrayTypeNode::outputPost(OutputStream &OS, OutputFlags Flags) const {
557   OS << "[";
558   outputDimensionsImpl(OS, Flags);
559   OS << "]";
560 
561   ElementType->outputPost(OS, Flags);
562 }
563 
564 void SymbolNode::output(OutputStream &OS, OutputFlags Flags) const {
565   Name->output(OS, Flags);
566 }
567 
568 void FunctionSymbolNode::output(OutputStream &OS, OutputFlags Flags) const {
569   Signature->outputPre(OS, Flags);
570   outputSpaceIfNecessary(OS);
571   Name->output(OS, Flags);
572   Signature->outputPost(OS, Flags);
573 }
574 
575 void VariableSymbolNode::output(OutputStream &OS, OutputFlags Flags) const {
576   switch (SC) {
577   case StorageClass::PrivateStatic:
578     OS << "private: static ";
579     break;
580   case StorageClass::PublicStatic:
581     OS << "public: static ";
582     break;
583   case StorageClass::ProtectedStatic:
584     OS << "protected: static ";
585     break;
586   default:
587     break;
588   }
589 
590   if (Type) {
591     Type->outputPre(OS, Flags);
592     outputSpaceIfNecessary(OS);
593   }
594   Name->output(OS, Flags);
595   if (Type)
596     Type->outputPost(OS, Flags);
597 }
598 
599 void CustomTypeNode::outputPre(OutputStream &OS, OutputFlags Flags) const {
600   Identifier->output(OS, Flags);
601 }
602 void CustomTypeNode::outputPost(OutputStream &OS, OutputFlags Flags) const {}
603 
604 void QualifiedNameNode::output(OutputStream &OS, OutputFlags Flags) const {
605   Components->output(OS, Flags, "::");
606 }
607 
608 void RttiBaseClassDescriptorNode::output(OutputStream &OS,
609                                          OutputFlags Flags) const {
610   OS << "`RTTI Base Class Descriptor at (";
611   OS << NVOffset << ", " << VBPtrOffset << ", " << VBTableOffset << ", "
612      << this->Flags;
613   OS << ")'";
614 }
615 
616 void LocalStaticGuardVariableNode::output(OutputStream &OS,
617                                           OutputFlags Flags) const {
618   Name->output(OS, Flags);
619 }
620 
621 void VcallThunkIdentifierNode::output(OutputStream &OS,
622                                       OutputFlags Flags) const {
623   OS << "`vcall'{" << OffsetInVTable << ", {flat}}";
624 }
625 
626 void SpecialTableSymbolNode::output(OutputStream &OS, OutputFlags Flags) const {
627   outputQualifiers(OS, Quals, false, true);
628   Name->output(OS, Flags);
629   if (TargetName) {
630     OS << "{for `";
631     TargetName->output(OS, Flags);
632     OS << "'}";
633   }
634   return;
635 }
636