ClangASTContext.cpp revision 8ff5d55184d7c491d9c0d34a717264ab10396138 
1//===-- ClangASTContext.cpp -------------------------------------*- C++ -*-===//
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 "lldb/Symbol/ClangASTContext.h"
11
12// C Includes
13// C++ Includes
14#include <string>
15
16// Other libraries and framework includes
17#define NDEBUG
18#include "clang/AST/ASTContext.h"
19#include "clang/AST/ASTImporter.h"
20#include "clang/AST/CXXInheritance.h"
21#include "clang/AST/DeclObjC.h"
22#include "clang/AST/RecordLayout.h"
23#include "clang/AST/Type.h"
24#include "clang/Basic/Builtins.h"
25#include "clang/Basic/FileManager.h"
26#include "clang/Basic/SourceManager.h"
27#include "clang/Basic/TargetInfo.h"
28#include "clang/Basic/TargetOptions.h"
29#include "clang/Frontend/FrontendOptions.h"
30#include "clang/Frontend/LangStandard.h"
31#undef NDEBUG
32
33#include "lldb/Core/dwarf.h"
34#include "lldb/Core/Flags.h"
35#include "lldb/Core/Log.h"
36
37#include <stdio.h>
38
39using namespace lldb;
40using namespace lldb_private;
41using namespace llvm;
42using namespace clang;
43
44static AccessSpecifier
45ConvertAccessTypeToAccessSpecifier (AccessType access)
46{
47    switch (access)
48    {
49    default:               break;
50    case eAccessNone:      return AS_none;
51    case eAccessPublic:    return AS_public;
52    case eAccessPrivate:   return AS_private;
53    case eAccessProtected: return AS_protected;
54    }
55    return AS_none;
56}
57
58static ObjCIvarDecl::AccessControl
59ConvertAccessTypeToObjCIvarAccessControl (AccessType access)
60{
61    switch (access)
62    {
63    default:               break;
64    case eAccessNone:      return ObjCIvarDecl::None;
65    case eAccessPublic:    return ObjCIvarDecl::Public;
66    case eAccessPrivate:   return ObjCIvarDecl::Private;
67    case eAccessProtected: return ObjCIvarDecl::Protected;
68    case eAccessPackage:   return ObjCIvarDecl::Package;
69    }
70    return ObjCIvarDecl::None;
71}
72
73
74static void
75ParseLangArgs
76(
77    LangOptions &Opts,
78    InputKind IK
79)
80{
81    // FIXME: Cleanup per-file based stuff.
82
83    // Set some properties which depend soley on the input kind; it would be nice
84    // to move these to the language standard, and have the driver resolve the
85    // input kind + language standard.
86    if (IK == IK_Asm) {
87        Opts.AsmPreprocessor = 1;
88    } else if (IK == IK_ObjC ||
89               IK == IK_ObjCXX ||
90               IK == IK_PreprocessedObjC ||
91               IK == IK_PreprocessedObjCXX) {
92        Opts.ObjC1 = Opts.ObjC2 = 1;
93    }
94
95    LangStandard::Kind LangStd = LangStandard::lang_unspecified;
96
97    if (LangStd == LangStandard::lang_unspecified) {
98        // Based on the base language, pick one.
99        switch (IK) {
100            case IK_None:
101            case IK_AST:
102                assert(0 && "Invalid input kind!");
103            case IK_OpenCL:
104                LangStd = LangStandard::lang_opencl;
105                break;
106            case IK_Asm:
107            case IK_C:
108            case IK_PreprocessedC:
109            case IK_ObjC:
110            case IK_PreprocessedObjC:
111                LangStd = LangStandard::lang_gnu99;
112                break;
113            case IK_CXX:
114            case IK_PreprocessedCXX:
115            case IK_ObjCXX:
116            case IK_PreprocessedObjCXX:
117                LangStd = LangStandard::lang_gnucxx98;
118                break;
119        }
120    }
121
122    const LangStandard &Std = LangStandard::getLangStandardForKind(LangStd);
123    Opts.BCPLComment = Std.hasBCPLComments();
124    Opts.C99 = Std.isC99();
125    Opts.CPlusPlus = Std.isCPlusPlus();
126    Opts.CPlusPlus0x = Std.isCPlusPlus0x();
127    Opts.Digraphs = Std.hasDigraphs();
128    Opts.GNUMode = Std.isGNUMode();
129    Opts.GNUInline = !Std.isC99();
130    Opts.HexFloats = Std.hasHexFloats();
131    Opts.ImplicitInt = Std.hasImplicitInt();
132
133    // OpenCL has some additional defaults.
134    if (LangStd == LangStandard::lang_opencl) {
135        Opts.OpenCL = 1;
136        Opts.AltiVec = 1;
137        Opts.CXXOperatorNames = 1;
138        Opts.LaxVectorConversions = 1;
139    }
140
141    // OpenCL and C++ both have bool, true, false keywords.
142    Opts.Bool = Opts.OpenCL || Opts.CPlusPlus;
143
144//    if (Opts.CPlusPlus)
145//        Opts.CXXOperatorNames = !Args.hasArg(OPT_fno_operator_names);
146//
147//    if (Args.hasArg(OPT_fobjc_gc_only))
148//        Opts.setGCMode(LangOptions::GCOnly);
149//    else if (Args.hasArg(OPT_fobjc_gc))
150//        Opts.setGCMode(LangOptions::HybridGC);
151//
152//    if (Args.hasArg(OPT_print_ivar_layout))
153//        Opts.ObjCGCBitmapPrint = 1;
154//
155//    if (Args.hasArg(OPT_faltivec))
156//        Opts.AltiVec = 1;
157//
158//    if (Args.hasArg(OPT_pthread))
159//        Opts.POSIXThreads = 1;
160//
161//    llvm::StringRef Vis = getLastArgValue(Args, OPT_fvisibility,
162//                                          "default");
163//    if (Vis == "default")
164        Opts.setVisibilityMode(DefaultVisibility);
165//    else if (Vis == "hidden")
166//        Opts.setVisibilityMode(LangOptions::Hidden);
167//    else if (Vis == "protected")
168//        Opts.setVisibilityMode(LangOptions::Protected);
169//    else
170//        Diags.Report(diag::err_drv_invalid_value)
171//        << Args.getLastArg(OPT_fvisibility)->getAsString(Args) << Vis;
172
173//    Opts.OverflowChecking = Args.hasArg(OPT_ftrapv);
174
175    // Mimicing gcc's behavior, trigraphs are only enabled if -trigraphs
176    // is specified, or -std is set to a conforming mode.
177    Opts.Trigraphs = !Opts.GNUMode;
178//    if (Args.hasArg(OPT_trigraphs))
179//        Opts.Trigraphs = 1;
180//
181//    Opts.DollarIdents = Args.hasFlag(OPT_fdollars_in_identifiers,
182//                                     OPT_fno_dollars_in_identifiers,
183//                                     !Opts.AsmPreprocessor);
184//    Opts.PascalStrings = Args.hasArg(OPT_fpascal_strings);
185//    Opts.Microsoft = Args.hasArg(OPT_fms_extensions);
186//    Opts.WritableStrings = Args.hasArg(OPT_fwritable_strings);
187//    if (Args.hasArg(OPT_fno_lax_vector_conversions))
188//        Opts.LaxVectorConversions = 0;
189//    Opts.Exceptions = Args.hasArg(OPT_fexceptions);
190//    Opts.RTTI = !Args.hasArg(OPT_fno_rtti);
191//    Opts.Blocks = Args.hasArg(OPT_fblocks);
192//    Opts.CharIsSigned = !Args.hasArg(OPT_fno_signed_char);
193//    Opts.ShortWChar = Args.hasArg(OPT_fshort_wchar);
194//    Opts.Freestanding = Args.hasArg(OPT_ffreestanding);
195//    Opts.NoBuiltin = Args.hasArg(OPT_fno_builtin) || Opts.Freestanding;
196//    Opts.AssumeSaneOperatorNew = !Args.hasArg(OPT_fno_assume_sane_operator_new);
197//    Opts.HeinousExtensions = Args.hasArg(OPT_fheinous_gnu_extensions);
198//    Opts.AccessControl = Args.hasArg(OPT_faccess_control);
199//    Opts.ElideConstructors = !Args.hasArg(OPT_fno_elide_constructors);
200//    Opts.MathErrno = !Args.hasArg(OPT_fno_math_errno);
201//    Opts.InstantiationDepth = getLastArgIntValue(Args, OPT_ftemplate_depth, 99,
202//                                                 Diags);
203//    Opts.NeXTRuntime = !Args.hasArg(OPT_fgnu_runtime);
204//    Opts.ObjCConstantStringClass = getLastArgValue(Args,
205//                                                   OPT_fconstant_string_class);
206//    Opts.ObjCNonFragileABI = Args.hasArg(OPT_fobjc_nonfragile_abi);
207//    Opts.CatchUndefined = Args.hasArg(OPT_fcatch_undefined_behavior);
208//    Opts.EmitAllDecls = Args.hasArg(OPT_femit_all_decls);
209//    Opts.PICLevel = getLastArgIntValue(Args, OPT_pic_level, 0, Diags);
210//    Opts.Static = Args.hasArg(OPT_static_define);
211    Opts.OptimizeSize = 0;
212
213    // FIXME: Eliminate this dependency.
214//    unsigned Opt =
215//    Args.hasArg(OPT_Os) ? 2 : getLastArgIntValue(Args, OPT_O, 0, Diags);
216//    Opts.Optimize = Opt != 0;
217    unsigned Opt = 0;
218
219    // This is the __NO_INLINE__ define, which just depends on things like the
220    // optimization level and -fno-inline, not actually whether the backend has
221    // inlining enabled.
222    //
223    // FIXME: This is affected by other options (-fno-inline).
224    Opts.NoInline = !Opt;
225
226//    unsigned SSP = getLastArgIntValue(Args, OPT_stack_protector, 0, Diags);
227//    switch (SSP) {
228//        default:
229//            Diags.Report(diag::err_drv_invalid_value)
230//            << Args.getLastArg(OPT_stack_protector)->getAsString(Args) << SSP;
231//            break;
232//        case 0: Opts.setStackProtectorMode(LangOptions::SSPOff); break;
233//        case 1: Opts.setStackProtectorMode(LangOptions::SSPOn);  break;
234//        case 2: Opts.setStackProtectorMode(LangOptions::SSPReq); break;
235//    }
236}
237
238
239ClangASTContext::ClangASTContext(const char *target_triple) :
240    m_target_triple(),
241    m_ast_context_ap(),
242    m_language_options_ap(),
243    m_source_manager_ap(),
244    m_diagnostic_ap(),
245    m_target_options_ap(),
246    m_target_info_ap(),
247    m_identifier_table_ap(),
248    m_selector_table_ap(),
249    m_builtins_ap()
250{
251    if (target_triple && target_triple[0])
252        m_target_triple.assign (target_triple);
253}
254
255//----------------------------------------------------------------------
256// Destructor
257//----------------------------------------------------------------------
258ClangASTContext::~ClangASTContext()
259{
260    m_builtins_ap.reset();
261    m_selector_table_ap.reset();
262    m_identifier_table_ap.reset();
263    m_target_info_ap.reset();
264    m_target_options_ap.reset();
265    m_diagnostic_ap.reset();
266    m_source_manager_ap.reset();
267    m_language_options_ap.reset();
268    m_ast_context_ap.reset();
269}
270
271
272void
273ClangASTContext::Clear()
274{
275    m_ast_context_ap.reset();
276    m_language_options_ap.reset();
277    m_source_manager_ap.reset();
278    m_diagnostic_ap.reset();
279    m_target_options_ap.reset();
280    m_target_info_ap.reset();
281    m_identifier_table_ap.reset();
282    m_selector_table_ap.reset();
283    m_builtins_ap.reset();
284}
285
286const char *
287ClangASTContext::GetTargetTriple ()
288{
289    return m_target_triple.c_str();
290}
291
292void
293ClangASTContext::SetTargetTriple (const char *target_triple)
294{
295    Clear();
296    m_target_triple.assign(target_triple);
297}
298
299
300ASTContext *
301ClangASTContext::getASTContext()
302{
303    if (m_ast_context_ap.get() == NULL)
304    {
305        m_ast_context_ap.reset(
306            new ASTContext(
307                *getLanguageOptions(),
308                *getSourceManager(),
309                *getTargetInfo(),
310                *getIdentifierTable(),
311                *getSelectorTable(),
312                *getBuiltinContext(),
313                0));
314    }
315    return m_ast_context_ap.get();
316}
317
318Builtin::Context *
319ClangASTContext::getBuiltinContext()
320{
321    if (m_builtins_ap.get() == NULL)
322        m_builtins_ap.reset (new Builtin::Context(*getTargetInfo()));
323    return m_builtins_ap.get();
324}
325
326IdentifierTable *
327ClangASTContext::getIdentifierTable()
328{
329    if (m_identifier_table_ap.get() == NULL)
330        m_identifier_table_ap.reset(new IdentifierTable (*ClangASTContext::getLanguageOptions(), NULL));
331    return m_identifier_table_ap.get();
332}
333
334LangOptions *
335ClangASTContext::getLanguageOptions()
336{
337    if (m_language_options_ap.get() == NULL)
338    {
339        m_language_options_ap.reset(new LangOptions());
340        ParseLangArgs(*m_language_options_ap, IK_ObjCXX);
341//        InitializeLangOptions(*m_language_options_ap, IK_ObjCXX);
342    }
343    return m_language_options_ap.get();
344}
345
346SelectorTable *
347ClangASTContext::getSelectorTable()
348{
349    if (m_selector_table_ap.get() == NULL)
350        m_selector_table_ap.reset (new SelectorTable());
351    return m_selector_table_ap.get();
352}
353
354clang::SourceManager *
355ClangASTContext::getSourceManager()
356{
357    if (m_source_manager_ap.get() == NULL)
358        m_source_manager_ap.reset(new clang::SourceManager(*getDiagnostic()));
359    return m_source_manager_ap.get();
360}
361
362Diagnostic *
363ClangASTContext::getDiagnostic()
364{
365    if (m_diagnostic_ap.get() == NULL)
366        m_diagnostic_ap.reset(new Diagnostic());
367    return m_diagnostic_ap.get();
368}
369
370TargetOptions *
371ClangASTContext::getTargetOptions()
372{
373    if (m_target_options_ap.get() == NULL && !m_target_triple.empty())
374    {
375        m_target_options_ap.reset (new TargetOptions());
376        if (m_target_options_ap.get())
377            m_target_options_ap->Triple = m_target_triple;
378    }
379    return m_target_options_ap.get();
380}
381
382
383TargetInfo *
384ClangASTContext::getTargetInfo()
385{
386    // target_triple should be something like "x86_64-apple-darwin10"
387    if (m_target_info_ap.get() == NULL && !m_target_triple.empty())
388        m_target_info_ap.reset (TargetInfo::CreateTargetInfo(*getDiagnostic(), *getTargetOptions()));
389    return m_target_info_ap.get();
390}
391
392#pragma mark Basic Types
393
394static inline bool
395QualTypeMatchesBitSize(const uint64_t bit_size, ASTContext *ast_context, QualType qual_type)
396{
397    uint64_t qual_type_bit_size = ast_context->getTypeSize(qual_type);
398    if (qual_type_bit_size == bit_size)
399        return true;
400    return false;
401}
402
403clang_type_t
404ClangASTContext::GetBuiltinTypeForEncodingAndBitSize (Encoding encoding, uint32_t bit_size)
405{
406    ASTContext *ast_context = getASTContext();
407
408    assert (ast_context != NULL);
409
410    return GetBuiltinTypeForEncodingAndBitSize (ast_context, encoding, bit_size);
411}
412
413clang_type_t
414ClangASTContext::GetBuiltinTypeForEncodingAndBitSize (ASTContext *ast_context, Encoding encoding, uint32_t bit_size)
415{
416    if (!ast_context)
417        return NULL;
418
419    switch (encoding)
420    {
421    case eEncodingInvalid:
422        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->VoidPtrTy))
423            return ast_context->VoidPtrTy.getAsOpaquePtr();
424        break;
425
426    case eEncodingUint:
427        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedCharTy))
428            return ast_context->UnsignedCharTy.getAsOpaquePtr();
429        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedShortTy))
430            return ast_context->UnsignedShortTy.getAsOpaquePtr();
431        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedIntTy))
432            return ast_context->UnsignedIntTy.getAsOpaquePtr();
433        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedLongTy))
434            return ast_context->UnsignedLongTy.getAsOpaquePtr();
435        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedLongLongTy))
436            return ast_context->UnsignedLongLongTy.getAsOpaquePtr();
437        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedInt128Ty))
438            return ast_context->UnsignedInt128Ty.getAsOpaquePtr();
439        break;
440
441    case eEncodingSint:
442        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->CharTy))
443            return ast_context->CharTy.getAsOpaquePtr();
444        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->ShortTy))
445            return ast_context->ShortTy.getAsOpaquePtr();
446        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->IntTy))
447            return ast_context->IntTy.getAsOpaquePtr();
448        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongTy))
449            return ast_context->LongTy.getAsOpaquePtr();
450        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongLongTy))
451            return ast_context->LongLongTy.getAsOpaquePtr();
452        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->Int128Ty))
453            return ast_context->Int128Ty.getAsOpaquePtr();
454        break;
455
456    case eEncodingIEEE754:
457        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->FloatTy))
458            return ast_context->FloatTy.getAsOpaquePtr();
459        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->DoubleTy))
460            return ast_context->DoubleTy.getAsOpaquePtr();
461        if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongDoubleTy))
462            return ast_context->LongDoubleTy.getAsOpaquePtr();
463        break;
464
465    case eEncodingVector:
466    default:
467        break;
468    }
469
470    return NULL;
471}
472
473clang_type_t
474ClangASTContext::GetBuiltinTypeForDWARFEncodingAndBitSize (const char *type_name, uint32_t dw_ate, uint32_t bit_size)
475{
476    ASTContext *ast_context = getASTContext();
477
478    #define streq(a,b) strcmp(a,b) == 0
479    assert (ast_context != NULL);
480    if (ast_context)
481    {
482        switch (dw_ate)
483        {
484        default:
485            break;
486
487        case DW_ATE_address:
488            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->VoidPtrTy))
489                return ast_context->VoidPtrTy.getAsOpaquePtr();
490            break;
491
492        case DW_ATE_boolean:
493            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->BoolTy))
494                return ast_context->BoolTy.getAsOpaquePtr();
495            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedCharTy))
496                return ast_context->UnsignedCharTy.getAsOpaquePtr();
497            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedShortTy))
498                return ast_context->UnsignedShortTy.getAsOpaquePtr();
499            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedIntTy))
500                return ast_context->UnsignedIntTy.getAsOpaquePtr();
501            break;
502
503        case DW_ATE_complex_float:
504            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->FloatComplexTy))
505                return ast_context->FloatComplexTy.getAsOpaquePtr();
506            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->DoubleComplexTy))
507                return ast_context->DoubleComplexTy.getAsOpaquePtr();
508            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongDoubleComplexTy))
509                return ast_context->LongDoubleComplexTy.getAsOpaquePtr();
510            break;
511
512        case DW_ATE_float:
513            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->FloatTy))
514                return ast_context->FloatTy.getAsOpaquePtr();
515            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->DoubleTy))
516                return ast_context->DoubleTy.getAsOpaquePtr();
517            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongDoubleTy))
518                return ast_context->LongDoubleTy.getAsOpaquePtr();
519            break;
520
521        case DW_ATE_signed:
522            if (type_name)
523            {
524                if (strstr(type_name, "long long"))
525                {
526                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongLongTy))
527                        return ast_context->LongLongTy.getAsOpaquePtr();
528                }
529                else if (strstr(type_name, "long"))
530                {
531                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongTy))
532                        return ast_context->LongTy.getAsOpaquePtr();
533                }
534                else if (strstr(type_name, "short"))
535                {
536                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->ShortTy))
537                        return ast_context->ShortTy.getAsOpaquePtr();
538                }
539                else if (strstr(type_name, "char"))
540                {
541                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->CharTy))
542                        return ast_context->CharTy.getAsOpaquePtr();
543                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->SignedCharTy))
544                        return ast_context->SignedCharTy.getAsOpaquePtr();
545                }
546                else if (strstr(type_name, "int"))
547                {
548                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->IntTy))
549                        return ast_context->IntTy.getAsOpaquePtr();
550                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->Int128Ty))
551                        return ast_context->Int128Ty.getAsOpaquePtr();
552                }
553                else if (streq(type_name, "wchar_t"))
554                {
555                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->WCharTy))
556                        return ast_context->WCharTy.getAsOpaquePtr();
557                }
558            }
559            // We weren't able to match up a type name, just search by size
560            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->CharTy))
561                return ast_context->CharTy.getAsOpaquePtr();
562            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->ShortTy))
563                return ast_context->ShortTy.getAsOpaquePtr();
564            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->IntTy))
565                return ast_context->IntTy.getAsOpaquePtr();
566            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongTy))
567                return ast_context->LongTy.getAsOpaquePtr();
568            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->LongLongTy))
569                return ast_context->LongLongTy.getAsOpaquePtr();
570            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->Int128Ty))
571                return ast_context->Int128Ty.getAsOpaquePtr();
572            break;
573
574        case DW_ATE_signed_char:
575            if (type_name)
576            {
577                if (streq(type_name, "signed char"))
578                {
579                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->SignedCharTy))
580                        return ast_context->SignedCharTy.getAsOpaquePtr();
581                }
582            }
583            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->CharTy))
584                return ast_context->CharTy.getAsOpaquePtr();
585            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->SignedCharTy))
586                return ast_context->SignedCharTy.getAsOpaquePtr();
587            break;
588
589        case DW_ATE_unsigned:
590            if (type_name)
591            {
592                if (strstr(type_name, "long long"))
593                {
594                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedLongLongTy))
595                        return ast_context->UnsignedLongLongTy.getAsOpaquePtr();
596                }
597                else if (strstr(type_name, "long"))
598                {
599                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedLongTy))
600                        return ast_context->UnsignedLongTy.getAsOpaquePtr();
601                }
602                else if (strstr(type_name, "short"))
603                {
604                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedShortTy))
605                        return ast_context->UnsignedShortTy.getAsOpaquePtr();
606                }
607                else if (strstr(type_name, "char"))
608                {
609                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedCharTy))
610                        return ast_context->UnsignedCharTy.getAsOpaquePtr();
611                }
612                else if (strstr(type_name, "int"))
613                {
614                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedIntTy))
615                        return ast_context->UnsignedIntTy.getAsOpaquePtr();
616                    if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedInt128Ty))
617                        return ast_context->UnsignedInt128Ty.getAsOpaquePtr();
618                }
619            }
620            // We weren't able to match up a type name, just search by size
621            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedCharTy))
622                return ast_context->UnsignedCharTy.getAsOpaquePtr();
623            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedShortTy))
624                return ast_context->UnsignedShortTy.getAsOpaquePtr();
625            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedIntTy))
626                return ast_context->UnsignedIntTy.getAsOpaquePtr();
627            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedLongTy))
628                return ast_context->UnsignedLongTy.getAsOpaquePtr();
629            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedLongLongTy))
630                return ast_context->UnsignedLongLongTy.getAsOpaquePtr();
631            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedInt128Ty))
632                return ast_context->UnsignedInt128Ty.getAsOpaquePtr();
633            break;
634
635        case DW_ATE_unsigned_char:
636            if (QualTypeMatchesBitSize (bit_size, ast_context, ast_context->UnsignedCharTy))
637                return ast_context->UnsignedCharTy.getAsOpaquePtr();
638            break;
639
640        case DW_ATE_imaginary_float:
641            break;
642        }
643    }
644    // This assert should fire for anything that we don't catch above so we know
645    // to fix any issues we run into.
646    assert (!"error: ClangASTContext::GetClangTypeForDWARFEncodingAndSize() contains an unhandled encoding. Fix this ASAP!");
647    return NULL;
648}
649
650clang_type_t
651ClangASTContext::GetBuiltInType_void(ASTContext *ast_context)
652{
653    return ast_context->VoidTy.getAsOpaquePtr();
654}
655
656clang_type_t
657ClangASTContext::GetBuiltInType_objc_id()
658{
659    return getASTContext()->ObjCBuiltinIdTy.getAsOpaquePtr();
660}
661
662clang_type_t
663ClangASTContext::GetBuiltInType_objc_Class()
664{
665    return getASTContext()->ObjCBuiltinClassTy.getAsOpaquePtr();
666}
667
668clang_type_t
669ClangASTContext::GetBuiltInType_objc_selector()
670{
671    return getASTContext()->ObjCBuiltinSelTy.getAsOpaquePtr();
672}
673
674clang_type_t
675ClangASTContext::GetCStringType (bool is_const)
676{
677    QualType char_type(getASTContext()->CharTy);
678
679    if (is_const)
680        char_type.addConst();
681
682    return getASTContext()->getPointerType(char_type).getAsOpaquePtr();
683}
684
685clang_type_t
686ClangASTContext::GetVoidPtrType (bool is_const)
687{
688    return GetVoidPtrType(getASTContext(), is_const);
689}
690
691clang_type_t
692ClangASTContext::GetVoidPtrType (ASTContext *ast_context, bool is_const)
693{
694    QualType void_ptr_type(ast_context->VoidPtrTy);
695
696    if (is_const)
697        void_ptr_type.addConst();
698
699    return void_ptr_type.getAsOpaquePtr();
700}
701
702class NullDiagnosticClient : public DiagnosticClient
703{
704public:
705    NullDiagnosticClient ()
706    {
707        m_log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_EXPRESSIONS);
708    }
709
710    void HandleDiagnostic (Diagnostic::Level DiagLevel, const DiagnosticInfo &info)
711    {
712        if (m_log)
713        {
714            llvm::SmallVectorImpl<char> diag_str(10);
715            info.FormatDiagnostic(diag_str);
716            diag_str.push_back('\0');
717            m_log->Printf("Compiler diagnostic: %s\n", diag_str.data());
718        }
719    }
720private:
721    Log    *m_log;
722};
723
724clang_type_t
725ClangASTContext::CopyType (ASTContext *dest_context,
726                           ASTContext *source_context,
727                           clang_type_t clang_type)
728{
729    // null_client's ownership is transferred to diagnostics
730    NullDiagnosticClient *null_client = new NullDiagnosticClient;
731    Diagnostic diagnostics(null_client);
732    FileManager file_manager;
733    ASTImporter importer(diagnostics,
734                         *dest_context, file_manager,
735                         *source_context, file_manager);
736    QualType ret = importer.Import(QualType::getFromOpaquePtr(clang_type));
737    return ret.getAsOpaquePtr();
738}
739
740bool
741ClangASTContext::AreTypesSame(ASTContext *ast_context,
742             clang_type_t type1,
743             clang_type_t type2)
744{
745    return ast_context->hasSameType(QualType::getFromOpaquePtr(type1),
746                                    QualType::getFromOpaquePtr(type2));
747}
748
749#pragma mark CVR modifiers
750
751clang_type_t
752ClangASTContext::AddConstModifier (clang_type_t clang_type)
753{
754    if (clang_type)
755    {
756        QualType result(QualType::getFromOpaquePtr(clang_type));
757        result.addConst();
758        return result.getAsOpaquePtr();
759    }
760    return NULL;
761}
762
763clang_type_t
764ClangASTContext::AddRestrictModifier (clang_type_t clang_type)
765{
766    if (clang_type)
767    {
768        QualType result(QualType::getFromOpaquePtr(clang_type));
769        result.getQualifiers().setRestrict (true);
770        return result.getAsOpaquePtr();
771    }
772    return NULL;
773}
774
775clang_type_t
776ClangASTContext::AddVolatileModifier (clang_type_t clang_type)
777{
778    if (clang_type)
779    {
780        QualType result(QualType::getFromOpaquePtr(clang_type));
781        result.getQualifiers().setVolatile (true);
782        return result.getAsOpaquePtr();
783    }
784    return NULL;
785}
786
787#pragma mark Structure, Unions, Classes
788
789clang_type_t
790ClangASTContext::CreateRecordType (const char *name, int kind, DeclContext *decl_ctx, LanguageType language)
791{
792    ASTContext *ast_context = getASTContext();
793    assert (ast_context != NULL);
794
795    if (decl_ctx == NULL)
796        decl_ctx = ast_context->getTranslationUnitDecl();
797
798
799    if (language == eLanguageTypeObjC)
800    {
801        bool isForwardDecl = true;
802        bool isInternal = false;
803        return CreateObjCClass (name, decl_ctx, isForwardDecl, isInternal);
804    }
805
806    // NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and
807    // we will need to update this code. I was told to currently always use
808    // the CXXRecordDecl class since we often don't know from debug information
809    // if something is struct or a class, so we default to always use the more
810    // complete definition just in case.
811    CXXRecordDecl *decl = CXXRecordDecl::Create(*ast_context,
812                                                (TagDecl::TagKind)kind,
813                                                decl_ctx,
814                                                SourceLocation(),
815                                                name && name[0] ? &ast_context->Idents.get(name) : NULL);
816
817    return ast_context->getTagDeclType(decl).getAsOpaquePtr();
818}
819
820static bool
821IsOperator (const char *name, OverloadedOperatorKind &op_kind)
822{
823    if (name == NULL || name[0] == '\0')
824        return false;
825
826    if (::strstr(name, "operator ") != name)
827        return false;
828
829    const char *post_op_name = name + 9;
830
831    // This is an operator, set the overloaded operator kind to invalid
832    // in case this is a conversion operator...
833    op_kind = NUM_OVERLOADED_OPERATORS;
834
835    switch (post_op_name[0])
836    {
837    case 'n':
838        if  (strcmp (post_op_name, "new") == 0)
839            op_kind = OO_New;
840        else if (strcmp (post_op_name, "new[]") == 0)
841            op_kind = OO_Array_New;
842        break;
843
844    case 'd':
845        if (strcmp (post_op_name, "delete") == 0)
846            op_kind = OO_Delete;
847        else if (strcmp (post_op_name, "delete[]") == 0)
848            op_kind = OO_Array_Delete;
849        break;
850
851    case '+':
852        if (post_op_name[1] == '\0')
853            op_kind = OO_Plus;
854        else if (post_op_name[2] == '\0')
855        {
856            if (post_op_name[1] == '=')
857                op_kind = OO_PlusEqual;
858            else if (post_op_name[1] == '+')
859                op_kind = OO_PlusPlus;
860        }
861        break;
862
863    case '-':
864        if (post_op_name[1] == '\0')
865            op_kind = OO_Minus;
866        else if (post_op_name[2] == '\0')
867        {
868            switch (post_op_name[1])
869            {
870            case '=': op_kind = OO_MinusEqual; break;
871            case '-': op_kind = OO_MinusMinus; break;
872            case '>': op_kind = OO_Arrow; break;
873            }
874        }
875        else if (post_op_name[3] == '\0')
876        {
877            if (post_op_name[2] == '*')
878                op_kind = OO_ArrowStar; break;
879        }
880        break;
881
882    case '*':
883        if (post_op_name[1] == '\0')
884            op_kind = OO_Star;
885        else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
886            op_kind = OO_StarEqual;
887        break;
888
889    case '/':
890        if (post_op_name[1] == '\0')
891            op_kind = OO_Slash;
892        else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
893            op_kind = OO_SlashEqual;
894        break;
895
896    case '%':
897        if (post_op_name[1] == '\0')
898            op_kind = OO_Percent;
899        else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
900            op_kind = OO_PercentEqual;
901        break;
902
903
904    case '^':
905        if (post_op_name[1] == '\0')
906            op_kind = OO_Caret;
907        else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
908            op_kind = OO_CaretEqual;
909        break;
910
911    case '&':
912        if (post_op_name[1] == '\0')
913            op_kind = OO_Amp;
914        else if (post_op_name[2] == '\0')
915        {
916            switch (post_op_name[1])
917            {
918            case '=': op_kind = OO_AmpEqual; break;
919            case '&': op_kind = OO_AmpAmp; break;
920            }
921        }
922        break;
923
924    case '|':
925        if (post_op_name[1] == '\0')
926            op_kind = OO_Pipe;
927        else if (post_op_name[2] == '\0')
928        {
929            switch (post_op_name[1])
930            {
931            case '=': op_kind = OO_PipeEqual; break;
932            case '|': op_kind = OO_PipePipe; break;
933            }
934        }
935        break;
936
937    case '~':
938        if (post_op_name[1] == '\0')
939            op_kind = OO_Tilde;
940        break;
941
942    case '!':
943        if (post_op_name[1] == '\0')
944            op_kind = OO_Exclaim;
945        else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
946            op_kind = OO_ExclaimEqual;
947        break;
948
949    case '=':
950        if (post_op_name[1] == '\0')
951            op_kind = OO_Equal;
952        else if (post_op_name[1] == '=' && post_op_name[2] == '\0')
953            op_kind = OO_EqualEqual;
954        break;
955
956    case '<':
957        if (post_op_name[1] == '\0')
958            op_kind = OO_Less;
959        else if (post_op_name[2] == '\0')
960        {
961            switch (post_op_name[1])
962            {
963            case '<': op_kind = OO_LessLess; break;
964            case '=': op_kind = OO_LessEqual; break;
965            }
966        }
967        else if (post_op_name[3] == '\0')
968        {
969            if (post_op_name[2] == '=')
970                op_kind = OO_LessLessEqual;
971        }
972        break;
973
974    case '>':
975        if (post_op_name[1] == '\0')
976            op_kind = OO_Greater;
977        else if (post_op_name[2] == '\0')
978        {
979            switch (post_op_name[1])
980            {
981            case '>': op_kind = OO_GreaterGreater; break;
982            case '=': op_kind = OO_GreaterEqual; break;
983            }
984        }
985        else if (post_op_name[1] == '>' &&
986                 post_op_name[2] == '=' &&
987                 post_op_name[3] == '\0')
988        {
989                op_kind = OO_GreaterGreaterEqual;
990        }
991        break;
992
993    case ',':
994        if (post_op_name[1] == '\0')
995            op_kind = OO_Comma;
996        break;
997
998    case '(':
999        if (post_op_name[1] == ')' && post_op_name[2] == '\0')
1000            op_kind = OO_Call;
1001        break;
1002
1003    case '[':
1004        if (post_op_name[1] == ']' && post_op_name[2] == '\0')
1005            op_kind = OO_Subscript;
1006        break;
1007    }
1008
1009    return true;
1010}
1011CXXMethodDecl *
1012ClangASTContext::AddMethodToCXXRecordType
1013(
1014    ASTContext *ast_context,
1015    clang_type_t record_opaque_type,
1016    const char *name,
1017    clang_type_t method_opaque_type,
1018    lldb::AccessType access,
1019    bool is_virtual,
1020    bool is_static,
1021    bool is_inline,
1022    bool is_explicit
1023)
1024{
1025    if (!record_opaque_type || !method_opaque_type || !name)
1026        return NULL;
1027
1028    assert(ast_context);
1029
1030    IdentifierTable *identifier_table = &ast_context->Idents;
1031
1032    assert(identifier_table);
1033
1034    QualType record_qual_type(QualType::getFromOpaquePtr(record_opaque_type));
1035
1036    clang::Type *clang_type(record_qual_type.getTypePtr());
1037
1038    if (clang_type == NULL)
1039        return NULL;
1040
1041    RecordType *record_clang_type(dyn_cast<RecordType>(clang_type));
1042
1043    if (record_clang_type == NULL)
1044        return NULL;
1045
1046    RecordDecl *record_decl = record_clang_type->getDecl();
1047
1048    if (record_decl == NULL)
1049        return NULL;
1050
1051    CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
1052
1053    if (cxx_record_decl == NULL)
1054        return NULL;
1055
1056    QualType method_qual_type (QualType::getFromOpaquePtr (method_opaque_type));
1057
1058    CXXMethodDecl *cxx_method_decl = NULL;
1059
1060    DeclarationName decl_name (&identifier_table->get(name));
1061
1062    const bool is_implicitly_declared = false;
1063
1064    clang::FunctionType *function_Type = dyn_cast<FunctionType>(method_qual_type.getTypePtr());
1065
1066    if (function_Type == NULL)
1067        return NULL;
1068
1069    FunctionProtoType *method_function_prototype (dyn_cast<FunctionProtoType>(function_Type));
1070
1071    if (!method_function_prototype)
1072        return NULL;
1073
1074    unsigned int num_params = method_function_prototype->getNumArgs();
1075
1076    if (name[0] == '~')
1077    {
1078        cxx_method_decl = CXXDestructorDecl::Create (*ast_context,
1079                                                     cxx_record_decl,
1080                                                     DeclarationNameInfo (ast_context->DeclarationNames.getCXXDestructorName (ast_context->getCanonicalType (record_qual_type)), SourceLocation()),
1081                                                     method_qual_type,
1082                                                     NULL,
1083                                                     is_inline,
1084                                                     is_implicitly_declared);
1085    }
1086    else if (decl_name == record_decl->getDeclName())
1087    {
1088        cxx_method_decl = CXXConstructorDecl::Create (*ast_context,
1089                                                      cxx_record_decl,
1090                                                      DeclarationNameInfo (ast_context->DeclarationNames.getCXXConstructorName (ast_context->getCanonicalType (record_qual_type)), SourceLocation()),
1091                                                      method_qual_type,
1092                                                      NULL, // TypeSourceInfo *
1093                                                      is_explicit,
1094                                                      is_inline,
1095                                                      is_implicitly_declared);
1096    }
1097    else
1098    {
1099
1100        OverloadedOperatorKind op_kind = NUM_OVERLOADED_OPERATORS;
1101        if (IsOperator (name, op_kind))
1102        {
1103            if (op_kind != NUM_OVERLOADED_OPERATORS)
1104            {
1105                cxx_method_decl = CXXMethodDecl::Create (*ast_context,
1106                                                         cxx_record_decl,
1107                                                         DeclarationNameInfo (ast_context->DeclarationNames.getCXXOperatorName (op_kind), SourceLocation()),
1108                                                         method_qual_type,
1109                                                         NULL, // TypeSourceInfo *
1110                                                         is_static,
1111                                                         SC_None,
1112                                                         is_inline);
1113            }
1114            else if (num_params == 0)
1115            {
1116                // Conversion operators don't take params...
1117                cxx_method_decl = CXXConversionDecl::Create (*ast_context,
1118                                                             cxx_record_decl,
1119                                                             DeclarationNameInfo (ast_context->DeclarationNames.getCXXConversionFunctionName (ast_context->getCanonicalType (function_Type->getResultType())), SourceLocation()),
1120                                                             method_qual_type,
1121                                                             NULL, // TypeSourceInfo *
1122                                                             is_inline,
1123                                                             is_explicit);
1124            }
1125        }
1126
1127        if (cxx_method_decl == NULL)
1128        {
1129            cxx_method_decl = CXXMethodDecl::Create (*ast_context,
1130                                                     cxx_record_decl,
1131                                                     DeclarationNameInfo (decl_name, SourceLocation()),
1132                                                     method_qual_type,
1133                                                     NULL, // TypeSourceInfo *
1134                                                     is_static,
1135                                                     SC_None,
1136                                                     is_inline);
1137        }
1138    }
1139
1140    AccessSpecifier access_specifier = ConvertAccessTypeToAccessSpecifier (access);
1141
1142    cxx_method_decl->setAccess (access_specifier);
1143    cxx_method_decl->setVirtualAsWritten (is_virtual);
1144
1145    // Populate the method decl with parameter decls
1146
1147    ParmVarDecl *params[num_params];
1148
1149    for (int param_index = 0;
1150         param_index < num_params;
1151         ++param_index)
1152    {
1153        params[param_index] = ParmVarDecl::Create (*ast_context,
1154                                                   cxx_method_decl,
1155                                                   SourceLocation(),
1156                                                   NULL, // anonymous
1157                                                   method_function_prototype->getArgType(param_index),
1158                                                   NULL,
1159                                                   SC_None,
1160                                                   SC_None,
1161                                                   NULL);
1162    }
1163
1164    cxx_method_decl->setParams (params, num_params);
1165
1166    cxx_record_decl->addDecl (cxx_method_decl);
1167
1168    return cxx_method_decl;
1169}
1170
1171bool
1172ClangASTContext::AddFieldToRecordType
1173(
1174    ASTContext *ast_context,
1175    clang_type_t record_clang_type,
1176    const char *name,
1177    clang_type_t field_type,
1178    AccessType access,
1179    uint32_t bitfield_bit_size
1180)
1181{
1182    if (record_clang_type == NULL || field_type == NULL)
1183        return false;
1184
1185    IdentifierTable *identifier_table = &ast_context->Idents;
1186
1187    assert (ast_context != NULL);
1188    assert (identifier_table != NULL);
1189
1190    QualType record_qual_type(QualType::getFromOpaquePtr(record_clang_type));
1191
1192    clang::Type *clang_type = record_qual_type.getTypePtr();
1193    if (clang_type)
1194    {
1195        const RecordType *record_type = dyn_cast<RecordType>(clang_type);
1196
1197        if (record_type)
1198        {
1199            RecordDecl *record_decl = record_type->getDecl();
1200
1201            clang::Expr *bit_width = NULL;
1202            if (bitfield_bit_size != 0)
1203            {
1204                APInt bitfield_bit_size_apint(ast_context->getTypeSize(ast_context->IntTy), bitfield_bit_size);
1205                bit_width = new (*ast_context)IntegerLiteral (*ast_context, bitfield_bit_size_apint, ast_context->IntTy, SourceLocation());
1206            }
1207            FieldDecl *field = FieldDecl::Create (*ast_context,
1208                                                  record_decl,
1209                                                  SourceLocation(),
1210                                                  name ? &identifier_table->get(name) : NULL, // Identifier
1211                                                  QualType::getFromOpaquePtr(field_type), // Field type
1212                                                  NULL,       // DeclaratorInfo *
1213                                                  bit_width,  // BitWidth
1214                                                  false);     // Mutable
1215
1216            field->setAccess (ConvertAccessTypeToAccessSpecifier (access));
1217
1218            if (field)
1219            {
1220                record_decl->addDecl(field);
1221            }
1222        }
1223        else
1224        {
1225            ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(clang_type);
1226            if (objc_class_type)
1227            {
1228                bool is_synthesized = false;
1229                ClangASTContext::AddObjCClassIVar (ast_context,
1230                                                   record_clang_type,
1231                                                   name,
1232                                                   field_type,
1233                                                   access,
1234                                                   bitfield_bit_size,
1235                                                   is_synthesized);
1236            }
1237        }
1238    }
1239    return false;
1240}
1241
1242bool
1243ClangASTContext::FieldIsBitfield (FieldDecl* field, uint32_t& bitfield_bit_size)
1244{
1245    return FieldIsBitfield(getASTContext(), field, bitfield_bit_size);
1246}
1247
1248bool
1249ClangASTContext::FieldIsBitfield
1250(
1251    ASTContext *ast_context,
1252    FieldDecl* field,
1253    uint32_t& bitfield_bit_size
1254)
1255{
1256    if (ast_context == NULL || field == NULL)
1257        return false;
1258
1259    if (field->isBitField())
1260    {
1261        Expr* bit_width_expr = field->getBitWidth();
1262        if (bit_width_expr)
1263        {
1264            llvm::APSInt bit_width_apsint;
1265            if (bit_width_expr->isIntegerConstantExpr(bit_width_apsint, *ast_context))
1266            {
1267                bitfield_bit_size = bit_width_apsint.getLimitedValue(UINT32_MAX);
1268                return true;
1269            }
1270        }
1271    }
1272    return false;
1273}
1274
1275bool
1276ClangASTContext::RecordHasFields (const RecordDecl *record_decl)
1277{
1278    if (record_decl == NULL)
1279        return false;
1280
1281    if (!record_decl->field_empty())
1282        return true;
1283
1284    // No fields, lets check this is a CXX record and check the base classes
1285    const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
1286    if (cxx_record_decl)
1287    {
1288        CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
1289        for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
1290             base_class != base_class_end;
1291             ++base_class)
1292        {
1293            const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>(base_class->getType()->getAs<RecordType>()->getDecl());
1294            if (RecordHasFields(base_class_decl))
1295                return true;
1296        }
1297    }
1298    return false;
1299}
1300
1301void
1302ClangASTContext::SetDefaultAccessForRecordFields (clang_type_t clang_qual_type, int default_accessibility, int *assigned_accessibilities, size_t num_assigned_accessibilities)
1303{
1304    if (clang_qual_type)
1305    {
1306        QualType qual_type(QualType::getFromOpaquePtr(clang_qual_type));
1307        clang::Type *clang_type = qual_type.getTypePtr();
1308        if (clang_type)
1309        {
1310            RecordType *record_type = dyn_cast<RecordType>(clang_type);
1311            if (record_type)
1312            {
1313                RecordDecl *record_decl = record_type->getDecl();
1314                if (record_decl)
1315                {
1316                    uint32_t field_idx;
1317                    RecordDecl::field_iterator field, field_end;
1318                    for (field = record_decl->field_begin(), field_end = record_decl->field_end(), field_idx = 0;
1319                         field != field_end;
1320                         ++field, ++field_idx)
1321                    {
1322                        // If no accessibility was assigned, assign the correct one
1323                        if (field_idx < num_assigned_accessibilities && assigned_accessibilities[field_idx] == clang::AS_none)
1324                            field->setAccess ((AccessSpecifier)default_accessibility);
1325                    }
1326                }
1327            }
1328        }
1329    }
1330}
1331
1332#pragma mark C++ Base Classes
1333
1334CXXBaseSpecifier *
1335ClangASTContext::CreateBaseClassSpecifier (clang_type_t base_class_type, AccessType access, bool is_virtual, bool base_of_class)
1336{
1337    if (base_class_type)
1338        return new CXXBaseSpecifier (SourceRange(),
1339                                     is_virtual,
1340                                     base_of_class,
1341                                     ConvertAccessTypeToAccessSpecifier (access),
1342                                     getASTContext()->CreateTypeSourceInfo (QualType::getFromOpaquePtr(base_class_type)));
1343    return NULL;
1344}
1345
1346void
1347ClangASTContext::DeleteBaseClassSpecifiers (CXXBaseSpecifier **base_classes, unsigned num_base_classes)
1348{
1349    for (unsigned i=0; i<num_base_classes; ++i)
1350    {
1351        delete base_classes[i];
1352        base_classes[i] = NULL;
1353    }
1354}
1355
1356bool
1357ClangASTContext::SetBaseClassesForClassType (clang_type_t class_clang_type, CXXBaseSpecifier const * const *base_classes, unsigned num_base_classes)
1358{
1359    if (class_clang_type)
1360    {
1361        clang::Type *clang_type = QualType::getFromOpaquePtr(class_clang_type).getTypePtr();
1362        if (clang_type)
1363        {
1364            RecordType *record_type = dyn_cast<RecordType>(clang_type);
1365            if (record_type)
1366            {
1367                CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_type->getDecl());
1368                if (cxx_record_decl)
1369                {
1370                    cxx_record_decl->setBases(base_classes, num_base_classes);
1371                    return true;
1372                }
1373            }
1374        }
1375    }
1376    return false;
1377}
1378#pragma mark Objective C Classes
1379
1380clang_type_t
1381ClangASTContext::CreateObjCClass
1382(
1383    const char *name,
1384    DeclContext *decl_ctx,
1385    bool isForwardDecl,
1386    bool isInternal
1387)
1388{
1389    ASTContext *ast_context = getASTContext();
1390    assert (ast_context != NULL);
1391    assert (name && name[0]);
1392    if (decl_ctx == NULL)
1393        decl_ctx = ast_context->getTranslationUnitDecl();
1394
1395    // NOTE: Eventually CXXRecordDecl will be merged back into RecordDecl and
1396    // we will need to update this code. I was told to currently always use
1397    // the CXXRecordDecl class since we often don't know from debug information
1398    // if something is struct or a class, so we default to always use the more
1399    // complete definition just in case.
1400    ObjCInterfaceDecl *decl = ObjCInterfaceDecl::Create (*ast_context,
1401                                                         decl_ctx,
1402                                                         SourceLocation(),
1403                                                         &ast_context->Idents.get(name),
1404                                                         SourceLocation(),
1405                                                         isForwardDecl,
1406                                                         isInternal);
1407
1408    return ast_context->getObjCInterfaceType(decl).getAsOpaquePtr();
1409}
1410
1411bool
1412ClangASTContext::SetObjCSuperClass (clang_type_t class_opaque_type, clang_type_t super_opaque_type)
1413{
1414    if (class_opaque_type && super_opaque_type)
1415    {
1416        QualType class_qual_type(QualType::getFromOpaquePtr(class_opaque_type));
1417        QualType super_qual_type(QualType::getFromOpaquePtr(super_opaque_type));
1418        clang::Type *class_type = class_qual_type.getTypePtr();
1419        clang::Type *super_type = super_qual_type.getTypePtr();
1420        if (class_type && super_type)
1421        {
1422            ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(class_type);
1423            ObjCObjectType *objc_super_type = dyn_cast<ObjCObjectType>(super_type);
1424            if (objc_class_type && objc_super_type)
1425            {
1426                ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
1427                ObjCInterfaceDecl *super_interface_decl = objc_super_type->getInterface();
1428                if (class_interface_decl && super_interface_decl)
1429                {
1430                    class_interface_decl->setSuperClass(super_interface_decl);
1431                    return true;
1432                }
1433            }
1434        }
1435    }
1436    return false;
1437}
1438
1439
1440bool
1441ClangASTContext::AddObjCClassIVar
1442(
1443    ASTContext *ast_context,
1444    clang_type_t class_opaque_type,
1445    const char *name,
1446    clang_type_t ivar_opaque_type,
1447    AccessType access,
1448    uint32_t bitfield_bit_size,
1449    bool is_synthesized
1450)
1451{
1452    if (class_opaque_type == NULL || ivar_opaque_type == NULL)
1453        return false;
1454
1455    IdentifierTable *identifier_table = &ast_context->Idents;
1456
1457    assert (ast_context != NULL);
1458    assert (identifier_table != NULL);
1459
1460    QualType class_qual_type(QualType::getFromOpaquePtr(class_opaque_type));
1461
1462    clang::Type *class_type = class_qual_type.getTypePtr();
1463    if (class_type)
1464    {
1465        ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(class_type);
1466
1467        if (objc_class_type)
1468        {
1469            ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
1470
1471            if (class_interface_decl)
1472            {
1473                clang::Expr *bit_width = NULL;
1474                if (bitfield_bit_size != 0)
1475                {
1476                    APInt bitfield_bit_size_apint(ast_context->getTypeSize(ast_context->IntTy), bitfield_bit_size);
1477                    bit_width = new (*ast_context)IntegerLiteral (*ast_context, bitfield_bit_size_apint, ast_context->IntTy, SourceLocation());
1478                }
1479
1480                ObjCIvarDecl *field = ObjCIvarDecl::Create (*ast_context,
1481                                                            class_interface_decl,
1482                                                            SourceLocation(),
1483                                                            &identifier_table->get(name), // Identifier
1484                                                            QualType::getFromOpaquePtr(ivar_opaque_type), // Field type
1485                                                            NULL, // TypeSourceInfo *
1486                                                            ConvertAccessTypeToObjCIvarAccessControl (access),
1487                                                            bit_width,
1488                                                            is_synthesized);
1489
1490                if (field)
1491                {
1492                    class_interface_decl->addDecl(field);
1493                    return true;
1494                }
1495            }
1496        }
1497    }
1498    return false;
1499}
1500
1501
1502bool
1503ClangASTContext::ObjCTypeHasIVars (clang_type_t class_opaque_type, bool check_superclass)
1504{
1505    QualType class_qual_type(QualType::getFromOpaquePtr(class_opaque_type));
1506
1507    clang::Type *class_type = class_qual_type.getTypePtr();
1508    if (class_type)
1509    {
1510        ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(class_type);
1511
1512        if (objc_class_type)
1513            return ObjCDeclHasIVars (objc_class_type->getInterface(), check_superclass);
1514    }
1515    return false;
1516}
1517
1518bool
1519ClangASTContext::ObjCDeclHasIVars (ObjCInterfaceDecl *class_interface_decl, bool check_superclass)
1520{
1521    while (class_interface_decl)
1522    {
1523        if (class_interface_decl->ivar_size() > 0)
1524            return true;
1525
1526        if (check_superclass)
1527            class_interface_decl = class_interface_decl->getSuperClass();
1528        else
1529            break;
1530    }
1531    return false;
1532}
1533
1534ObjCMethodDecl *
1535ClangASTContext::AddMethodToObjCObjectType
1536(
1537    ASTContext *ast_context,
1538    clang_type_t class_opaque_type,
1539    const char *name,  // the full symbol name as seen in the symbol table ("-[NString stringWithCString:]")
1540    clang_type_t method_opaque_type,
1541    lldb::AccessType access
1542)
1543{
1544    if (class_opaque_type == NULL || method_opaque_type == NULL)
1545        return NULL;
1546
1547    IdentifierTable *identifier_table = &ast_context->Idents;
1548
1549    assert (ast_context != NULL);
1550    assert (identifier_table != NULL);
1551
1552    QualType class_qual_type(QualType::getFromOpaquePtr(class_opaque_type));
1553
1554    clang::Type *class_type = class_qual_type.getTypePtr();
1555    if (class_type == NULL)
1556        return NULL;
1557
1558    ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(class_type);
1559
1560    if (objc_class_type == NULL)
1561        return NULL;
1562
1563    ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
1564
1565    if (class_interface_decl == NULL)
1566        return NULL;
1567
1568    const char *selector_start = ::strchr (name, ' ');
1569    if (selector_start == NULL)
1570        return NULL;
1571
1572    selector_start++;
1573    if (!(::isalpha (selector_start[0]) || selector_start[0] == '_'))
1574        return NULL;
1575    llvm::SmallVector<IdentifierInfo *, 12> selector_idents;
1576
1577    size_t len = 0;
1578    const char *start;
1579    //printf ("name = '%s'\n", name);
1580
1581    unsigned num_selectors_with_args = 0;
1582    for (start = selector_start;
1583         start && *start != '\0' && *start != ']';
1584         start += len)
1585    {
1586        len = ::strcspn(start, ":]");
1587        bool has_arg = (start[len] == ':');
1588        if (has_arg)
1589            ++num_selectors_with_args;
1590        selector_idents.push_back (&identifier_table->get (StringRef (start, len)));
1591        if (has_arg)
1592            len += 1;
1593    }
1594
1595
1596    if (selector_idents.size() == 0)
1597        return 0;
1598
1599    clang::Selector method_selector = ast_context->Selectors.getSelector (num_selectors_with_args ? selector_idents.size() : 0,
1600                                                                          selector_idents.data());
1601
1602    QualType method_qual_type (QualType::getFromOpaquePtr (method_opaque_type));
1603
1604    // Populate the method decl with parameter decls
1605    clang::Type *method_type(method_qual_type.getTypePtr());
1606
1607    if (method_type == NULL)
1608        return NULL;
1609
1610    FunctionProtoType *method_function_prototype (dyn_cast<FunctionProtoType>(method_type));
1611
1612    if (!method_function_prototype)
1613        return NULL;
1614
1615
1616    bool is_variadic = false;
1617    bool is_synthesized = false;
1618    bool is_defined = false;
1619    ObjCMethodDecl::ImplementationControl imp_control = ObjCMethodDecl::None;
1620
1621    const unsigned num_args = method_function_prototype->getNumArgs();
1622
1623    ObjCMethodDecl *objc_method_decl = ObjCMethodDecl::Create (*ast_context,
1624                                                               SourceLocation(), // beginLoc,
1625                                                               SourceLocation(), // endLoc,
1626                                                               method_selector,
1627                                                               method_function_prototype->getResultType(),
1628                                                               NULL, // TypeSourceInfo *ResultTInfo,
1629                                                               GetDeclContextForType (class_opaque_type),
1630                                                               name[0] == '-',
1631                                                               is_variadic,
1632                                                               is_synthesized,
1633                                                               is_defined,
1634                                                               imp_control,
1635                                                               num_args);
1636
1637
1638    if (objc_method_decl == NULL)
1639        return NULL;
1640
1641    if (num_args > 0)
1642    {
1643        llvm::SmallVector<ParmVarDecl *, 12> params;
1644
1645        for (int param_index = 0; param_index < num_args; ++param_index)
1646        {
1647            params.push_back (ParmVarDecl::Create (*ast_context,
1648                                                   objc_method_decl,
1649                                                   SourceLocation(),
1650                                                   NULL, // anonymous
1651                                                   method_function_prototype->getArgType(param_index),
1652                                                   NULL,
1653                                                   SC_Auto,
1654                                                   SC_Auto,
1655                                                   NULL));
1656        }
1657
1658        objc_method_decl->setMethodParams(*ast_context, params.data(), params.size(), num_args);
1659    }
1660
1661    class_interface_decl->addDecl (objc_method_decl);
1662
1663
1664    return objc_method_decl;
1665}
1666
1667
1668uint32_t
1669ClangASTContext::GetTypeInfo
1670(
1671    clang_type_t clang_type,
1672    clang::ASTContext *ast_context,
1673    clang_type_t *pointee_or_element_clang_type
1674)
1675{
1676    if (clang_type == NULL)
1677        return 0;
1678
1679    if (pointee_or_element_clang_type)
1680        *pointee_or_element_clang_type = NULL;
1681
1682    QualType qual_type (QualType::getFromOpaquePtr(clang_type));
1683
1684    const clang::Type::TypeClass type_class = qual_type->getTypeClass();
1685    switch (type_class)
1686    {
1687    case clang::Type::Builtin:
1688        switch (cast<clang::BuiltinType>(qual_type)->getKind())
1689        {
1690        case clang::BuiltinType::ObjCId:
1691        case clang::BuiltinType::ObjCClass:
1692            if (ast_context && pointee_or_element_clang_type)
1693                *pointee_or_element_clang_type = ast_context->ObjCBuiltinClassTy.getAsOpaquePtr();
1694            return eTypeIsBuiltIn | eTypeIsPointer | eTypeHasValue;
1695
1696        default:
1697            break;
1698        }
1699        return eTypeIsBuiltIn | eTypeHasValue;
1700
1701    case clang::Type::BlockPointer:
1702        if (pointee_or_element_clang_type)
1703            *pointee_or_element_clang_type = qual_type->getPointeeType().getAsOpaquePtr();
1704        return eTypeIsPointer | eTypeHasChildren | eTypeIsBlock;
1705
1706    case clang::Type::Complex:                          return eTypeHasChildren | eTypeIsBuiltIn | eTypeHasValue;
1707
1708    case clang::Type::ConstantArray:
1709    case clang::Type::DependentSizedArray:
1710    case clang::Type::IncompleteArray:
1711    case clang::Type::VariableArray:
1712        if (pointee_or_element_clang_type)
1713            *pointee_or_element_clang_type = cast<ArrayType>(qual_type.getTypePtr())->getElementType().getAsOpaquePtr();
1714        return eTypeHasChildren | eTypeIsArray;
1715
1716    case clang::Type::DependentName:                    return 0;
1717    case clang::Type::DependentSizedExtVector:          return eTypeHasChildren | eTypeIsVector;
1718    case clang::Type::DependentTemplateSpecialization:  return eTypeIsTemplate;
1719    case clang::Type::Decltype:                         return 0;
1720
1721    case clang::Type::Enum:
1722        if (pointee_or_element_clang_type)
1723            *pointee_or_element_clang_type = cast<EnumType>(qual_type)->getDecl()->getIntegerType().getAsOpaquePtr();
1724        return eTypeIsEnumeration | eTypeHasValue;
1725
1726    case clang::Type::Elaborated:                       return 0;
1727    case clang::Type::ExtVector:                        return eTypeHasChildren | eTypeIsVector;
1728    case clang::Type::FunctionProto:                    return eTypeIsFuncPrototype | eTypeHasValue;
1729    case clang::Type::FunctionNoProto:                  return eTypeIsFuncPrototype | eTypeHasValue;
1730    case clang::Type::InjectedClassName:                return 0;
1731
1732    case clang::Type::LValueReference:
1733    case clang::Type::RValueReference:
1734        if (pointee_or_element_clang_type)
1735            *pointee_or_element_clang_type = cast<ReferenceType>(qual_type.getTypePtr())->getPointeeType().getAsOpaquePtr();
1736        return eTypeHasChildren | eTypeIsReference | eTypeHasValue;
1737
1738    case clang::Type::MemberPointer:                    return eTypeIsPointer   | eTypeIsMember | eTypeHasValue;
1739
1740    case clang::Type::ObjCObjectPointer:
1741        if (pointee_or_element_clang_type)
1742            *pointee_or_element_clang_type = qual_type->getPointeeType().getAsOpaquePtr();
1743        return eTypeHasChildren | eTypeIsObjC | eTypeIsClass | eTypeIsPointer | eTypeHasValue;
1744
1745    case clang::Type::ObjCObject:                       return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
1746    case clang::Type::ObjCInterface:                    return eTypeHasChildren | eTypeIsObjC | eTypeIsClass;
1747
1748    case clang::Type::Pointer:
1749        if (pointee_or_element_clang_type)
1750            *pointee_or_element_clang_type = qual_type->getPointeeType().getAsOpaquePtr();
1751        return eTypeHasChildren | eTypeIsPointer | eTypeHasValue;
1752
1753    case clang::Type::Record:
1754        if (qual_type->getAsCXXRecordDecl())
1755            return eTypeHasChildren | eTypeIsClass | eTypeIsCPlusPlus;
1756        else
1757            return eTypeHasChildren | eTypeIsStructUnion;
1758        break;
1759    case clang::Type::SubstTemplateTypeParm:            return eTypeIsTemplate;
1760    case clang::Type::TemplateTypeParm:                 return eTypeIsTemplate;
1761    case clang::Type::TemplateSpecialization:           return eTypeIsTemplate;
1762
1763    case clang::Type::Typedef:
1764        return eTypeIsTypedef | ClangASTContext::GetTypeInfo (cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr(),
1765                                                                  ast_context,
1766                                                                  pointee_or_element_clang_type);
1767
1768    case clang::Type::TypeOfExpr:                       return 0;
1769    case clang::Type::TypeOf:                           return 0;
1770    case clang::Type::UnresolvedUsing:                  return 0;
1771    case clang::Type::Vector:                           return eTypeHasChildren | eTypeIsVector;
1772    default:                                            return 0;
1773    }
1774    return 0;
1775}
1776
1777
1778#pragma mark Aggregate Types
1779
1780bool
1781ClangASTContext::IsAggregateType (clang_type_t clang_type)
1782{
1783    if (clang_type == NULL)
1784        return false;
1785
1786    QualType qual_type (QualType::getFromOpaquePtr(clang_type));
1787
1788    if (qual_type->isAggregateType ())
1789        return true;
1790
1791    const clang::Type::TypeClass type_class = qual_type->getTypeClass();
1792    switch (type_class)
1793    {
1794    case clang::Type::IncompleteArray:
1795    case clang::Type::VariableArray:
1796    case clang::Type::ConstantArray:
1797    case clang::Type::ExtVector:
1798    case clang::Type::Vector:
1799    case clang::Type::Record:
1800    case clang::Type::ObjCObject:
1801    case clang::Type::ObjCInterface:
1802        return true;
1803
1804    case clang::Type::Typedef:
1805        return ClangASTContext::IsAggregateType (cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr());
1806
1807    default:
1808        break;
1809    }
1810    // The clang type does have a value
1811    return false;
1812}
1813
1814uint32_t
1815ClangASTContext::GetNumChildren (clang_type_t clang_qual_type, bool omit_empty_base_classes)
1816{
1817    if (clang_qual_type == NULL)
1818        return 0;
1819
1820    uint32_t num_children = 0;
1821    QualType qual_type(QualType::getFromOpaquePtr(clang_qual_type));
1822    const clang::Type::TypeClass type_class = qual_type->getTypeClass();
1823    switch (type_class)
1824    {
1825    case clang::Type::Builtin:
1826        switch (cast<clang::BuiltinType>(qual_type)->getKind())
1827        {
1828        case clang::BuiltinType::ObjCId:    // child is Class
1829        case clang::BuiltinType::ObjCClass: // child is Class
1830            num_children = 1;
1831            break;
1832
1833        default:
1834            break;
1835        }
1836        break;
1837
1838    case clang::Type::Record:
1839        {
1840            const RecordType *record_type = cast<RecordType>(qual_type.getTypePtr());
1841            const RecordDecl *record_decl = record_type->getDecl();
1842            assert(record_decl);
1843            const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
1844            if (cxx_record_decl)
1845            {
1846                if (omit_empty_base_classes)
1847                {
1848                    // Check each base classes to see if it or any of its
1849                    // base classes contain any fields. This can help
1850                    // limit the noise in variable views by not having to
1851                    // show base classes that contain no members.
1852                    CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
1853                    for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
1854                         base_class != base_class_end;
1855                         ++base_class)
1856                    {
1857                        const CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>(base_class->getType()->getAs<RecordType>()->getDecl());
1858
1859                        // Skip empty base classes
1860                        if (RecordHasFields(base_class_decl) == false)
1861                            continue;
1862
1863                        num_children++;
1864                    }
1865                }
1866                else
1867                {
1868                    // Include all base classes
1869                    num_children += cxx_record_decl->getNumBases();
1870                }
1871
1872            }
1873            RecordDecl::field_iterator field, field_end;
1874            for (field = record_decl->field_begin(), field_end = record_decl->field_end(); field != field_end; ++field)
1875                ++num_children;
1876        }
1877        break;
1878
1879    case clang::Type::ObjCObject:
1880    case clang::Type::ObjCInterface:
1881        {
1882            ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(qual_type.getTypePtr());
1883            assert (objc_class_type);
1884            if (objc_class_type)
1885            {
1886                ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
1887
1888                if (class_interface_decl)
1889                {
1890
1891                    ObjCInterfaceDecl *superclass_interface_decl = class_interface_decl->getSuperClass();
1892                    if (superclass_interface_decl)
1893                    {
1894                        if (omit_empty_base_classes)
1895                        {
1896                            if (ClangASTContext::ObjCDeclHasIVars (superclass_interface_decl, true))
1897                                ++num_children;
1898                        }
1899                        else
1900                            ++num_children;
1901                    }
1902
1903                    num_children += class_interface_decl->ivar_size();
1904                }
1905            }
1906        }
1907        break;
1908
1909    case clang::Type::ObjCObjectPointer:
1910        {
1911            ObjCObjectPointerType *pointer_type = cast<ObjCObjectPointerType>(qual_type.getTypePtr());
1912            QualType pointee_type = pointer_type->getPointeeType();
1913            uint32_t num_pointee_children = ClangASTContext::GetNumChildren (pointee_type.getAsOpaquePtr(),
1914                                                                             omit_empty_base_classes);
1915            // If this type points to a simple type, then it has 1 child
1916            if (num_pointee_children == 0)
1917                num_children = 1;
1918            else
1919                num_children = num_pointee_children;
1920        }
1921        break;
1922
1923    case clang::Type::ConstantArray:
1924        num_children = cast<ConstantArrayType>(qual_type.getTypePtr())->getSize().getLimitedValue();
1925        break;
1926
1927    case clang::Type::Pointer:
1928        {
1929            PointerType *pointer_type = cast<PointerType>(qual_type.getTypePtr());
1930            QualType pointee_type = pointer_type->getPointeeType();
1931            uint32_t num_pointee_children = ClangASTContext::GetNumChildren (pointee_type.getAsOpaquePtr(),
1932                                                                             omit_empty_base_classes);
1933            // If this type points to a simple type, then it has 1 child
1934            if (num_pointee_children == 0)
1935                num_children = 1;
1936            else
1937                num_children = num_pointee_children;
1938        }
1939        break;
1940
1941    case clang::Type::LValueReference:
1942    case clang::Type::RValueReference:
1943        {
1944            ReferenceType *reference_type = cast<ReferenceType>(qual_type.getTypePtr());
1945            QualType pointee_type = reference_type->getPointeeType();
1946            uint32_t num_pointee_children = ClangASTContext::GetNumChildren (pointee_type.getAsOpaquePtr(),
1947                                                                             omit_empty_base_classes);
1948            // If this type points to a simple type, then it has 1 child
1949            if (num_pointee_children == 0)
1950                num_children = 1;
1951            else
1952                num_children = num_pointee_children;
1953        }
1954        break;
1955
1956
1957    case clang::Type::Typedef:
1958        num_children = ClangASTContext::GetNumChildren (cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr(), omit_empty_base_classes);
1959        break;
1960
1961    default:
1962        break;
1963    }
1964    return num_children;
1965}
1966
1967
1968clang_type_t
1969ClangASTContext::GetChildClangTypeAtIndex
1970(
1971    const char *parent_name,
1972    clang_type_t parent_clang_type,
1973    uint32_t idx,
1974    bool transparent_pointers,
1975    bool omit_empty_base_classes,
1976    std::string& child_name,
1977    uint32_t &child_byte_size,
1978    int32_t &child_byte_offset,
1979    uint32_t &child_bitfield_bit_size,
1980    uint32_t &child_bitfield_bit_offset,
1981    bool &child_is_base_class
1982)
1983{
1984    if (parent_clang_type)
1985
1986        return GetChildClangTypeAtIndex (getASTContext(),
1987                                         parent_name,
1988                                         parent_clang_type,
1989                                         idx,
1990                                         transparent_pointers,
1991                                         omit_empty_base_classes,
1992                                         child_name,
1993                                         child_byte_size,
1994                                         child_byte_offset,
1995                                         child_bitfield_bit_size,
1996                                         child_bitfield_bit_offset,
1997                                         child_is_base_class);
1998    return NULL;
1999}
2000
2001clang_type_t
2002ClangASTContext::GetChildClangTypeAtIndex
2003(
2004    ASTContext *ast_context,
2005    const char *parent_name,
2006    clang_type_t parent_clang_type,
2007    uint32_t idx,
2008    bool transparent_pointers,
2009    bool omit_empty_base_classes,
2010    std::string& child_name,
2011    uint32_t &child_byte_size,
2012    int32_t &child_byte_offset,
2013    uint32_t &child_bitfield_bit_size,
2014    uint32_t &child_bitfield_bit_offset,
2015    bool &child_is_base_class
2016)
2017{
2018    if (parent_clang_type == NULL)
2019        return NULL;
2020
2021    if (idx < ClangASTContext::GetNumChildren (parent_clang_type, omit_empty_base_classes))
2022    {
2023        uint32_t bit_offset;
2024        child_bitfield_bit_size = 0;
2025        child_bitfield_bit_offset = 0;
2026        child_is_base_class = false;
2027        QualType parent_qual_type(QualType::getFromOpaquePtr(parent_clang_type));
2028        const clang::Type::TypeClass parent_type_class = parent_qual_type->getTypeClass();
2029        switch (parent_type_class)
2030        {
2031        case clang::Type::Builtin:
2032            switch (cast<clang::BuiltinType>(parent_qual_type)->getKind())
2033            {
2034            case clang::BuiltinType::ObjCId:
2035            case clang::BuiltinType::ObjCClass:
2036                child_name = "isa";
2037                child_byte_size = ast_context->getTypeSize(ast_context->ObjCBuiltinClassTy) / CHAR_BIT;
2038                return ast_context->ObjCBuiltinClassTy.getAsOpaquePtr();
2039
2040            default:
2041                break;
2042            }
2043            break;
2044
2045
2046        case clang::Type::Record:
2047            {
2048                const RecordType *record_type = cast<RecordType>(parent_qual_type.getTypePtr());
2049                const RecordDecl *record_decl = record_type->getDecl();
2050                assert(record_decl);
2051                const ASTRecordLayout &record_layout = ast_context->getASTRecordLayout(record_decl);
2052                uint32_t child_idx = 0;
2053
2054                const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
2055                if (cxx_record_decl)
2056                {
2057                    // We might have base classes to print out first
2058                    CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
2059                    for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
2060                         base_class != base_class_end;
2061                         ++base_class)
2062                    {
2063                        const CXXRecordDecl *base_class_decl = NULL;
2064
2065                        // Skip empty base classes
2066                        if (omit_empty_base_classes)
2067                        {
2068                            base_class_decl = cast<CXXRecordDecl>(base_class->getType()->getAs<RecordType>()->getDecl());
2069                            if (RecordHasFields(base_class_decl) == false)
2070                                continue;
2071                        }
2072
2073                        if (idx == child_idx)
2074                        {
2075                            if (base_class_decl == NULL)
2076                                base_class_decl = cast<CXXRecordDecl>(base_class->getType()->getAs<RecordType>()->getDecl());
2077
2078
2079                            if (base_class->isVirtual())
2080                                bit_offset = record_layout.getVBaseClassOffset(base_class_decl);
2081                            else
2082                                bit_offset = record_layout.getBaseClassOffset(base_class_decl);
2083
2084                            // Base classes should be a multiple of 8 bits in size
2085                            assert (bit_offset % 8 == 0);
2086                            child_byte_offset = bit_offset/8;
2087                            std::string base_class_type_name(base_class->getType().getAsString());
2088
2089                            child_name.assign(base_class_type_name.c_str());
2090
2091                            uint64_t clang_type_info_bit_size = ast_context->getTypeSize(base_class->getType());
2092
2093                            // Base classes biut sizes should be a multiple of 8 bits in size
2094                            assert (clang_type_info_bit_size % 8 == 0);
2095                            child_byte_size = clang_type_info_bit_size / 8;
2096                            child_is_base_class = true;
2097                            return base_class->getType().getAsOpaquePtr();
2098                        }
2099                        // We don't increment the child index in the for loop since we might
2100                        // be skipping empty base classes
2101                        ++child_idx;
2102                    }
2103                }
2104                // Make sure index is in range...
2105                uint32_t field_idx = 0;
2106                RecordDecl::field_iterator field, field_end;
2107                for (field = record_decl->field_begin(), field_end = record_decl->field_end(); field != field_end; ++field, ++field_idx, ++child_idx)
2108                {
2109                    if (idx == child_idx)
2110                    {
2111                        // Print the member type if requested
2112                        // Print the member name and equal sign
2113                        child_name.assign(field->getNameAsString().c_str());
2114
2115                        // Figure out the type byte size (field_type_info.first) and
2116                        // alignment (field_type_info.second) from the AST context.
2117                        std::pair<uint64_t, unsigned> field_type_info = ast_context->getTypeInfo(field->getType());
2118                        assert(field_idx < record_layout.getFieldCount());
2119
2120                        child_byte_size = field_type_info.first / 8;
2121
2122                        // Figure out the field offset within the current struct/union/class type
2123                        bit_offset = record_layout.getFieldOffset (field_idx);
2124                        child_byte_offset = bit_offset / 8;
2125                        if (ClangASTContext::FieldIsBitfield (ast_context, *field, child_bitfield_bit_size))
2126                            child_bitfield_bit_offset = bit_offset % 8;
2127
2128                        return field->getType().getAsOpaquePtr();
2129                    }
2130                }
2131            }
2132            break;
2133
2134        case clang::Type::ObjCObject:
2135        case clang::Type::ObjCInterface:
2136            {
2137                ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(parent_qual_type.getTypePtr());
2138                assert (objc_class_type);
2139                if (objc_class_type)
2140                {
2141                    uint32_t child_idx = 0;
2142                    ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
2143
2144                    if (class_interface_decl)
2145                    {
2146
2147                        const ASTRecordLayout &interface_layout = ast_context->getASTObjCInterfaceLayout(class_interface_decl);
2148                        ObjCInterfaceDecl *superclass_interface_decl = class_interface_decl->getSuperClass();
2149                        if (superclass_interface_decl)
2150                        {
2151                            if (omit_empty_base_classes)
2152                            {
2153                                if (ClangASTContext::GetNumChildren(ast_context->getObjCInterfaceType(superclass_interface_decl).getAsOpaquePtr(), omit_empty_base_classes) > 0)
2154                                {
2155                                    if (idx == 0)
2156                                    {
2157                                        QualType ivar_qual_type(ast_context->getObjCInterfaceType(superclass_interface_decl));
2158
2159
2160                                        child_name.assign(superclass_interface_decl->getNameAsString().c_str());
2161
2162                                        std::pair<uint64_t, unsigned> ivar_type_info = ast_context->getTypeInfo(ivar_qual_type.getTypePtr());
2163
2164                                        child_byte_size = ivar_type_info.first / 8;
2165                                        child_byte_offset = 0;
2166                                        child_is_base_class = true;
2167
2168                                        return ivar_qual_type.getAsOpaquePtr();
2169                                    }
2170
2171                                    ++child_idx;
2172                                }
2173                            }
2174                            else
2175                                ++child_idx;
2176                        }
2177
2178                        const uint32_t superclass_idx = child_idx;
2179
2180                        if (idx < (child_idx + class_interface_decl->ivar_size()))
2181                        {
2182                            ObjCInterfaceDecl::ivar_iterator ivar_pos, ivar_end = class_interface_decl->ivar_end();
2183
2184                            for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end; ++ivar_pos)
2185                            {
2186                                if (child_idx == idx)
2187                                {
2188                                    const ObjCIvarDecl* ivar_decl = *ivar_pos;
2189
2190                                    QualType ivar_qual_type(ivar_decl->getType());
2191
2192                                    child_name.assign(ivar_decl->getNameAsString().c_str());
2193
2194                                    std::pair<uint64_t, unsigned> ivar_type_info = ast_context->getTypeInfo(ivar_qual_type.getTypePtr());
2195
2196                                    child_byte_size = ivar_type_info.first / 8;
2197
2198                                    // Figure out the field offset within the current struct/union/class type
2199                                    bit_offset = interface_layout.getFieldOffset (child_idx - superclass_idx);
2200                                    child_byte_offset = bit_offset / 8;
2201
2202                                    return ivar_qual_type.getAsOpaquePtr();
2203                                }
2204                                ++child_idx;
2205                            }
2206                        }
2207                    }
2208                }
2209            }
2210            break;
2211
2212        case clang::Type::ObjCObjectPointer:
2213            {
2214                ObjCObjectPointerType *pointer_type = cast<ObjCObjectPointerType>(parent_qual_type.getTypePtr());
2215                QualType pointee_type = pointer_type->getPointeeType();
2216
2217                if (transparent_pointers && ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2218                {
2219                    return GetChildClangTypeAtIndex (ast_context,
2220                                                     parent_name,
2221                                                     pointer_type->getPointeeType().getAsOpaquePtr(),
2222                                                     idx,
2223                                                     transparent_pointers,
2224                                                     omit_empty_base_classes,
2225                                                     child_name,
2226                                                     child_byte_size,
2227                                                     child_byte_offset,
2228                                                     child_bitfield_bit_size,
2229                                                     child_bitfield_bit_offset,
2230                                                     child_is_base_class);
2231                }
2232                else
2233                {
2234                    if (parent_name)
2235                    {
2236                        child_name.assign(1, '*');
2237                        child_name += parent_name;
2238                    }
2239
2240                    // We have a pointer to an simple type
2241                    if (idx == 0)
2242                    {
2243                        std::pair<uint64_t, unsigned> clang_type_info = ast_context->getTypeInfo(pointee_type);
2244                        assert(clang_type_info.first % 8 == 0);
2245                        child_byte_size = clang_type_info.first / 8;
2246                        child_byte_offset = 0;
2247                        return pointee_type.getAsOpaquePtr();
2248                    }
2249                }
2250            }
2251            break;
2252
2253        case clang::Type::ConstantArray:
2254            {
2255                const ConstantArrayType *array = cast<ConstantArrayType>(parent_qual_type.getTypePtr());
2256                const uint64_t element_count = array->getSize().getLimitedValue();
2257
2258                if (idx < element_count)
2259                {
2260                    std::pair<uint64_t, unsigned> field_type_info = ast_context->getTypeInfo(array->getElementType());
2261
2262                    char element_name[64];
2263                    ::snprintf (element_name, sizeof (element_name), "[%u]", idx);
2264
2265                    child_name.assign(element_name);
2266                    assert(field_type_info.first % 8 == 0);
2267                    child_byte_size = field_type_info.first / 8;
2268                    child_byte_offset = idx * child_byte_size;
2269                    return array->getElementType().getAsOpaquePtr();
2270                }
2271            }
2272            break;
2273
2274        case clang::Type::Pointer:
2275            {
2276                PointerType *pointer_type = cast<PointerType>(parent_qual_type.getTypePtr());
2277                QualType pointee_type = pointer_type->getPointeeType();
2278
2279                if (transparent_pointers && ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2280                {
2281                    return GetChildClangTypeAtIndex (ast_context,
2282                                                     parent_name,
2283                                                     pointer_type->getPointeeType().getAsOpaquePtr(),
2284                                                     idx,
2285                                                     transparent_pointers,
2286                                                     omit_empty_base_classes,
2287                                                     child_name,
2288                                                     child_byte_size,
2289                                                     child_byte_offset,
2290                                                     child_bitfield_bit_size,
2291                                                     child_bitfield_bit_offset,
2292                                                     child_is_base_class);
2293                }
2294                else
2295                {
2296                    if (parent_name)
2297                    {
2298                        child_name.assign(1, '*');
2299                        child_name += parent_name;
2300                    }
2301
2302                    // We have a pointer to an simple type
2303                    if (idx == 0)
2304                    {
2305                        std::pair<uint64_t, unsigned> clang_type_info = ast_context->getTypeInfo(pointee_type);
2306                        assert(clang_type_info.first % 8 == 0);
2307                        child_byte_size = clang_type_info.first / 8;
2308                        child_byte_offset = 0;
2309                        return pointee_type.getAsOpaquePtr();
2310                    }
2311                }
2312            }
2313            break;
2314
2315        case clang::Type::LValueReference:
2316        case clang::Type::RValueReference:
2317            {
2318                ReferenceType *reference_type = cast<ReferenceType>(parent_qual_type.getTypePtr());
2319                QualType pointee_type(reference_type->getPointeeType());
2320                clang_type_t pointee_clang_type = pointee_type.getAsOpaquePtr();
2321                if (transparent_pointers && ClangASTContext::IsAggregateType (pointee_clang_type))
2322                {
2323                    return GetChildClangTypeAtIndex (ast_context,
2324                                                     parent_name,
2325                                                     pointee_clang_type,
2326                                                     idx,
2327                                                     transparent_pointers,
2328                                                     omit_empty_base_classes,
2329                                                     child_name,
2330                                                     child_byte_size,
2331                                                     child_byte_offset,
2332                                                     child_bitfield_bit_size,
2333                                                     child_bitfield_bit_offset,
2334                                                     child_is_base_class);
2335                }
2336                else
2337                {
2338                    if (parent_name)
2339                    {
2340                        child_name.assign(1, '&');
2341                        child_name += parent_name;
2342                    }
2343
2344                    // We have a pointer to an simple type
2345                    if (idx == 0)
2346                    {
2347                        std::pair<uint64_t, unsigned> clang_type_info = ast_context->getTypeInfo(pointee_type);
2348                        assert(clang_type_info.first % 8 == 0);
2349                        child_byte_size = clang_type_info.first / 8;
2350                        child_byte_offset = 0;
2351                        return pointee_type.getAsOpaquePtr();
2352                    }
2353                }
2354            }
2355            break;
2356
2357        case clang::Type::Typedef:
2358            return GetChildClangTypeAtIndex (ast_context,
2359                                             parent_name,
2360                                             cast<TypedefType>(parent_qual_type)->LookThroughTypedefs().getAsOpaquePtr(),
2361                                             idx,
2362                                             transparent_pointers,
2363                                             omit_empty_base_classes,
2364                                             child_name,
2365                                             child_byte_size,
2366                                             child_byte_offset,
2367                                             child_bitfield_bit_size,
2368                                             child_bitfield_bit_offset,
2369                                             child_is_base_class);
2370            break;
2371
2372        default:
2373            break;
2374        }
2375    }
2376    return NULL;
2377}
2378
2379static inline bool
2380BaseSpecifierIsEmpty (const CXXBaseSpecifier *b)
2381{
2382    return ClangASTContext::RecordHasFields(cast<CXXRecordDecl>(b->getType()->getAs<RecordType>()->getDecl())) == false;
2383}
2384
2385static uint32_t
2386GetNumBaseClasses (const CXXRecordDecl *cxx_record_decl, bool omit_empty_base_classes)
2387{
2388    uint32_t num_bases = 0;
2389    if (cxx_record_decl)
2390    {
2391        if (omit_empty_base_classes)
2392        {
2393            CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
2394            for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
2395                 base_class != base_class_end;
2396                 ++base_class)
2397            {
2398                // Skip empty base classes
2399                if (omit_empty_base_classes)
2400                {
2401                    if (BaseSpecifierIsEmpty (base_class))
2402                        continue;
2403                }
2404                ++num_bases;
2405            }
2406        }
2407        else
2408            num_bases = cxx_record_decl->getNumBases();
2409    }
2410    return num_bases;
2411}
2412
2413
2414static uint32_t
2415GetIndexForRecordBase
2416(
2417    const RecordDecl *record_decl,
2418    const CXXBaseSpecifier *base_spec,
2419    bool omit_empty_base_classes
2420)
2421{
2422    uint32_t child_idx = 0;
2423
2424    const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
2425
2426//    const char *super_name = record_decl->getNameAsCString();
2427//    const char *base_name = base_spec->getType()->getAs<RecordType>()->getDecl()->getNameAsCString();
2428//    printf ("GetIndexForRecordChild (%s, %s)\n", super_name, base_name);
2429//
2430    if (cxx_record_decl)
2431    {
2432        CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
2433        for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
2434             base_class != base_class_end;
2435             ++base_class)
2436        {
2437            if (omit_empty_base_classes)
2438            {
2439                if (BaseSpecifierIsEmpty (base_class))
2440                    continue;
2441            }
2442
2443//            printf ("GetIndexForRecordChild (%s, %s) base[%u] = %s\n", super_name, base_name,
2444//                    child_idx,
2445//                    base_class->getType()->getAs<RecordType>()->getDecl()->getNameAsCString());
2446//
2447//
2448            if (base_class == base_spec)
2449                return child_idx;
2450            ++child_idx;
2451        }
2452    }
2453
2454    return UINT32_MAX;
2455}
2456
2457
2458static uint32_t
2459GetIndexForRecordChild
2460(
2461    const RecordDecl *record_decl,
2462    NamedDecl *canonical_decl,
2463    bool omit_empty_base_classes
2464)
2465{
2466    uint32_t child_idx = GetNumBaseClasses (dyn_cast<CXXRecordDecl>(record_decl), omit_empty_base_classes);
2467
2468//    const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
2469//
2470////    printf ("GetIndexForRecordChild (%s, %s)\n", record_decl->getNameAsCString(), canonical_decl->getNameAsCString());
2471//    if (cxx_record_decl)
2472//    {
2473//        CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
2474//        for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
2475//             base_class != base_class_end;
2476//             ++base_class)
2477//        {
2478//            if (omit_empty_base_classes)
2479//            {
2480//                if (BaseSpecifierIsEmpty (base_class))
2481//                    continue;
2482//            }
2483//
2484////            printf ("GetIndexForRecordChild (%s, %s) base[%u] = %s\n",
2485////                    record_decl->getNameAsCString(),
2486////                    canonical_decl->getNameAsCString(),
2487////                    child_idx,
2488////                    base_class->getType()->getAs<RecordType>()->getDecl()->getNameAsCString());
2489//
2490//
2491//            CXXRecordDecl *curr_base_class_decl = cast<CXXRecordDecl>(base_class->getType()->getAs<RecordType>()->getDecl());
2492//            if (curr_base_class_decl == canonical_decl)
2493//            {
2494//                return child_idx;
2495//            }
2496//            ++child_idx;
2497//        }
2498//    }
2499//
2500//    const uint32_t num_bases = child_idx;
2501    RecordDecl::field_iterator field, field_end;
2502    for (field = record_decl->field_begin(), field_end = record_decl->field_end();
2503         field != field_end;
2504         ++field, ++child_idx)
2505    {
2506//            printf ("GetIndexForRecordChild (%s, %s) field[%u] = %s\n",
2507//                    record_decl->getNameAsCString(),
2508//                    canonical_decl->getNameAsCString(),
2509//                    child_idx - num_bases,
2510//                    field->getNameAsCString());
2511
2512        if (field->getCanonicalDecl() == canonical_decl)
2513            return child_idx;
2514    }
2515
2516    return UINT32_MAX;
2517}
2518
2519// Look for a child member (doesn't include base classes, but it does include
2520// their members) in the type hierarchy. Returns an index path into "clang_type"
2521// on how to reach the appropriate member.
2522//
2523//    class A
2524//    {
2525//    public:
2526//        int m_a;
2527//        int m_b;
2528//    };
2529//
2530//    class B
2531//    {
2532//    };
2533//
2534//    class C :
2535//        public B,
2536//        public A
2537//    {
2538//    };
2539//
2540// If we have a clang type that describes "class C", and we wanted to looked
2541// "m_b" in it:
2542//
2543// With omit_empty_base_classes == false we would get an integer array back with:
2544// { 1,  1 }
2545// The first index 1 is the child index for "class A" within class C
2546// The second index 1 is the child index for "m_b" within class A
2547//
2548// With omit_empty_base_classes == true we would get an integer array back with:
2549// { 0,  1 }
2550// The first index 0 is the child index for "class A" within class C (since class B doesn't have any members it doesn't count)
2551// The second index 1 is the child index for "m_b" within class A
2552
2553size_t
2554ClangASTContext::GetIndexOfChildMemberWithName
2555(
2556    ASTContext *ast_context,
2557    clang_type_t clang_type,
2558    const char *name,
2559    bool omit_empty_base_classes,
2560    std::vector<uint32_t>& child_indexes
2561)
2562{
2563    if (clang_type && name && name[0])
2564    {
2565        QualType qual_type(QualType::getFromOpaquePtr(clang_type));
2566        const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2567        switch (type_class)
2568        {
2569        case clang::Type::Record:
2570            {
2571                const RecordType *record_type = cast<RecordType>(qual_type.getTypePtr());
2572                const RecordDecl *record_decl = record_type->getDecl();
2573
2574                assert(record_decl);
2575                uint32_t child_idx = 0;
2576
2577                const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
2578
2579                // Try and find a field that matches NAME
2580                RecordDecl::field_iterator field, field_end;
2581                StringRef name_sref(name);
2582                for (field = record_decl->field_begin(), field_end = record_decl->field_end();
2583                     field != field_end;
2584                     ++field, ++child_idx)
2585                {
2586                    if (field->getName().equals (name_sref))
2587                    {
2588                        // We have to add on the number of base classes to this index!
2589                        child_indexes.push_back (child_idx + GetNumBaseClasses (cxx_record_decl, omit_empty_base_classes));
2590                        return child_indexes.size();
2591                    }
2592                }
2593
2594                if (cxx_record_decl)
2595                {
2596                    const RecordDecl *parent_record_decl = cxx_record_decl;
2597
2598                    //printf ("parent = %s\n", parent_record_decl->getNameAsCString());
2599
2600                    //const Decl *root_cdecl = cxx_record_decl->getCanonicalDecl();
2601                    // Didn't find things easily, lets let clang do its thang...
2602                    IdentifierInfo & ident_ref = ast_context->Idents.get(name, name + strlen (name));
2603                    DeclarationName decl_name(&ident_ref);
2604
2605                    CXXBasePaths paths;
2606                    if (cxx_record_decl->lookupInBases(CXXRecordDecl::FindOrdinaryMember,
2607                                                       decl_name.getAsOpaquePtr(),
2608                                                       paths))
2609                    {
2610                        CXXBasePaths::const_paths_iterator path, path_end = paths.end();
2611                        for (path = paths.begin(); path != path_end; ++path)
2612                        {
2613                            const size_t num_path_elements = path->size();
2614                            for (size_t e=0; e<num_path_elements; ++e)
2615                            {
2616                                CXXBasePathElement elem = (*path)[e];
2617
2618                                child_idx = GetIndexForRecordBase (parent_record_decl, elem.Base, omit_empty_base_classes);
2619                                if (child_idx == UINT32_MAX)
2620                                {
2621                                    child_indexes.clear();
2622                                    return 0;
2623                                }
2624                                else
2625                                {
2626                                    child_indexes.push_back (child_idx);
2627                                    parent_record_decl = cast<RecordDecl>(elem.Base->getType()->getAs<RecordType>()->getDecl());
2628                                }
2629                            }
2630                            DeclContext::lookup_iterator named_decl_pos;
2631                            for (named_decl_pos = path->Decls.first;
2632                                 named_decl_pos != path->Decls.second && parent_record_decl;
2633                                 ++named_decl_pos)
2634                            {
2635                                //printf ("path[%zu] = %s\n", child_indexes.size(), (*named_decl_pos)->getNameAsCString());
2636
2637                                child_idx = GetIndexForRecordChild (parent_record_decl, *named_decl_pos, omit_empty_base_classes);
2638                                if (child_idx == UINT32_MAX)
2639                                {
2640                                    child_indexes.clear();
2641                                    return 0;
2642                                }
2643                                else
2644                                {
2645                                    child_indexes.push_back (child_idx);
2646                                }
2647                            }
2648                        }
2649                        return child_indexes.size();
2650                    }
2651                }
2652
2653            }
2654            break;
2655
2656        case clang::Type::ObjCObject:
2657        case clang::Type::ObjCInterface:
2658            {
2659                StringRef name_sref(name);
2660                ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(qual_type.getTypePtr());
2661                assert (objc_class_type);
2662                if (objc_class_type)
2663                {
2664                    uint32_t child_idx = 0;
2665                    ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
2666
2667                    if (class_interface_decl)
2668                    {
2669                        ObjCInterfaceDecl::ivar_iterator ivar_pos, ivar_end = class_interface_decl->ivar_end();
2670                        ObjCInterfaceDecl *superclass_interface_decl = class_interface_decl->getSuperClass();
2671
2672                        for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end; ++ivar_pos, ++child_idx)
2673                        {
2674                            const ObjCIvarDecl* ivar_decl = *ivar_pos;
2675
2676                            if (ivar_decl->getName().equals (name_sref))
2677                            {
2678                                if ((!omit_empty_base_classes && superclass_interface_decl) ||
2679                                    ( omit_empty_base_classes && ObjCDeclHasIVars (superclass_interface_decl, true)))
2680                                    ++child_idx;
2681
2682                                child_indexes.push_back (child_idx);
2683                                return child_indexes.size();
2684                            }
2685                        }
2686
2687                        if (superclass_interface_decl)
2688                        {
2689                            // The super class index is always zero for ObjC classes,
2690                            // so we push it onto the child indexes in case we find
2691                            // an ivar in our superclass...
2692                            child_indexes.push_back (0);
2693
2694                            if (GetIndexOfChildMemberWithName (ast_context,
2695                                                               ast_context->getObjCInterfaceType(superclass_interface_decl).getAsOpaquePtr(),
2696                                                               name,
2697                                                               omit_empty_base_classes,
2698                                                               child_indexes))
2699                            {
2700                                // We did find an ivar in a superclass so just
2701                                // return the results!
2702                                return child_indexes.size();
2703                            }
2704
2705                            // We didn't find an ivar matching "name" in our
2706                            // superclass, pop the superclass zero index that
2707                            // we pushed on above.
2708                            child_indexes.pop_back();
2709                        }
2710                    }
2711                }
2712            }
2713            break;
2714
2715        case clang::Type::ObjCObjectPointer:
2716            {
2717                return GetIndexOfChildMemberWithName (ast_context,
2718                                                      cast<ObjCObjectPointerType>(qual_type.getTypePtr())->getPointeeType().getAsOpaquePtr(),
2719                                                      name,
2720                                                      omit_empty_base_classes,
2721                                                      child_indexes);
2722            }
2723            break;
2724
2725
2726        case clang::Type::ConstantArray:
2727            {
2728//                const ConstantArrayType *array = cast<ConstantArrayType>(parent_qual_type.getTypePtr());
2729//                const uint64_t element_count = array->getSize().getLimitedValue();
2730//
2731//                if (idx < element_count)
2732//                {
2733//                    std::pair<uint64_t, unsigned> field_type_info = ast_context->getTypeInfo(array->getElementType());
2734//
2735//                    char element_name[32];
2736//                    ::snprintf (element_name, sizeof (element_name), "%s[%u]", parent_name ? parent_name : "", idx);
2737//
2738//                    child_name.assign(element_name);
2739//                    assert(field_type_info.first % 8 == 0);
2740//                    child_byte_size = field_type_info.first / 8;
2741//                    child_byte_offset = idx * child_byte_size;
2742//                    return array->getElementType().getAsOpaquePtr();
2743//                }
2744            }
2745            break;
2746
2747//        case clang::Type::MemberPointerType:
2748//            {
2749//                MemberPointerType *mem_ptr_type = cast<MemberPointerType>(qual_type.getTypePtr());
2750//                QualType pointee_type = mem_ptr_type->getPointeeType();
2751//
2752//                if (ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2753//                {
2754//                    return GetIndexOfChildWithName (ast_context,
2755//                                                    mem_ptr_type->getPointeeType().getAsOpaquePtr(),
2756//                                                    name);
2757//                }
2758//            }
2759//            break;
2760//
2761        case clang::Type::LValueReference:
2762        case clang::Type::RValueReference:
2763            {
2764                ReferenceType *reference_type = cast<ReferenceType>(qual_type.getTypePtr());
2765                QualType pointee_type = reference_type->getPointeeType();
2766
2767                if (ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2768                {
2769                    return GetIndexOfChildMemberWithName (ast_context,
2770                                                          reference_type->getPointeeType().getAsOpaquePtr(),
2771                                                          name,
2772                                                          omit_empty_base_classes,
2773                                                          child_indexes);
2774                }
2775            }
2776            break;
2777
2778        case clang::Type::Pointer:
2779            {
2780                PointerType *pointer_type = cast<PointerType>(qual_type.getTypePtr());
2781                QualType pointee_type = pointer_type->getPointeeType();
2782
2783                if (ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2784                {
2785                    return GetIndexOfChildMemberWithName (ast_context,
2786                                                          pointer_type->getPointeeType().getAsOpaquePtr(),
2787                                                          name,
2788                                                          omit_empty_base_classes,
2789                                                          child_indexes);
2790                }
2791                else
2792                {
2793//                    if (parent_name)
2794//                    {
2795//                        child_name.assign(1, '*');
2796//                        child_name += parent_name;
2797//                    }
2798//
2799//                    // We have a pointer to an simple type
2800//                    if (idx == 0)
2801//                    {
2802//                        std::pair<uint64_t, unsigned> clang_type_info = ast_context->getTypeInfo(pointee_type);
2803//                        assert(clang_type_info.first % 8 == 0);
2804//                        child_byte_size = clang_type_info.first / 8;
2805//                        child_byte_offset = 0;
2806//                        return pointee_type.getAsOpaquePtr();
2807//                    }
2808                }
2809            }
2810            break;
2811
2812        case clang::Type::Typedef:
2813            return GetIndexOfChildMemberWithName (ast_context,
2814                                                  cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr(),
2815                                                  name,
2816                                                  omit_empty_base_classes,
2817                                                  child_indexes);
2818
2819        default:
2820            break;
2821        }
2822    }
2823    return 0;
2824}
2825
2826
2827// Get the index of the child of "clang_type" whose name matches. This function
2828// doesn't descend into the children, but only looks one level deep and name
2829// matches can include base class names.
2830
2831uint32_t
2832ClangASTContext::GetIndexOfChildWithName
2833(
2834    ASTContext *ast_context,
2835    clang_type_t clang_type,
2836    const char *name,
2837    bool omit_empty_base_classes
2838)
2839{
2840    if (clang_type && name && name[0])
2841    {
2842        QualType qual_type(QualType::getFromOpaquePtr(clang_type));
2843
2844        const clang::Type::TypeClass type_class = qual_type->getTypeClass();
2845
2846        switch (type_class)
2847        {
2848        case clang::Type::Record:
2849            {
2850                const RecordType *record_type = cast<RecordType>(qual_type.getTypePtr());
2851                const RecordDecl *record_decl = record_type->getDecl();
2852
2853                assert(record_decl);
2854                uint32_t child_idx = 0;
2855
2856                const CXXRecordDecl *cxx_record_decl = dyn_cast<CXXRecordDecl>(record_decl);
2857
2858                if (cxx_record_decl)
2859                {
2860                    CXXRecordDecl::base_class_const_iterator base_class, base_class_end;
2861                    for (base_class = cxx_record_decl->bases_begin(), base_class_end = cxx_record_decl->bases_end();
2862                         base_class != base_class_end;
2863                         ++base_class)
2864                    {
2865                        // Skip empty base classes
2866                        CXXRecordDecl *base_class_decl = cast<CXXRecordDecl>(base_class->getType()->getAs<RecordType>()->getDecl());
2867                        if (omit_empty_base_classes && RecordHasFields(base_class_decl) == false)
2868                            continue;
2869
2870                        if (base_class->getType().getAsString().compare (name) == 0)
2871                            return child_idx;
2872                        ++child_idx;
2873                    }
2874                }
2875
2876                // Try and find a field that matches NAME
2877                RecordDecl::field_iterator field, field_end;
2878                StringRef name_sref(name);
2879                for (field = record_decl->field_begin(), field_end = record_decl->field_end();
2880                     field != field_end;
2881                     ++field, ++child_idx)
2882                {
2883                    if (field->getName().equals (name_sref))
2884                        return child_idx;
2885                }
2886
2887            }
2888            break;
2889
2890        case clang::Type::ObjCObject:
2891        case clang::Type::ObjCInterface:
2892            {
2893                StringRef name_sref(name);
2894                ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(qual_type.getTypePtr());
2895                assert (objc_class_type);
2896                if (objc_class_type)
2897                {
2898                    uint32_t child_idx = 0;
2899                    ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
2900
2901                    if (class_interface_decl)
2902                    {
2903                        ObjCInterfaceDecl::ivar_iterator ivar_pos, ivar_end = class_interface_decl->ivar_end();
2904                        ObjCInterfaceDecl *superclass_interface_decl = class_interface_decl->getSuperClass();
2905
2906                        for (ivar_pos = class_interface_decl->ivar_begin(); ivar_pos != ivar_end; ++ivar_pos)
2907                        {
2908                            const ObjCIvarDecl* ivar_decl = *ivar_pos;
2909
2910                            if (ivar_decl->getName().equals (name_sref))
2911                            {
2912                                if ((!omit_empty_base_classes && superclass_interface_decl) ||
2913                                    ( omit_empty_base_classes && ObjCDeclHasIVars (superclass_interface_decl, true)))
2914                                    ++child_idx;
2915
2916                                return child_idx;
2917                            }
2918                        }
2919
2920                        if (superclass_interface_decl)
2921                        {
2922                            if (superclass_interface_decl->getName().equals (name_sref))
2923                                return 0;
2924                        }
2925                    }
2926                }
2927            }
2928            break;
2929
2930        case clang::Type::ObjCObjectPointer:
2931            {
2932                return GetIndexOfChildWithName (ast_context,
2933                                                cast<ObjCObjectPointerType>(qual_type.getTypePtr())->getPointeeType().getAsOpaquePtr(),
2934                                                name,
2935                                                omit_empty_base_classes);
2936            }
2937            break;
2938
2939        case clang::Type::ConstantArray:
2940            {
2941//                const ConstantArrayType *array = cast<ConstantArrayType>(parent_qual_type.getTypePtr());
2942//                const uint64_t element_count = array->getSize().getLimitedValue();
2943//
2944//                if (idx < element_count)
2945//                {
2946//                    std::pair<uint64_t, unsigned> field_type_info = ast_context->getTypeInfo(array->getElementType());
2947//
2948//                    char element_name[32];
2949//                    ::snprintf (element_name, sizeof (element_name), "%s[%u]", parent_name ? parent_name : "", idx);
2950//
2951//                    child_name.assign(element_name);
2952//                    assert(field_type_info.first % 8 == 0);
2953//                    child_byte_size = field_type_info.first / 8;
2954//                    child_byte_offset = idx * child_byte_size;
2955//                    return array->getElementType().getAsOpaquePtr();
2956//                }
2957            }
2958            break;
2959
2960//        case clang::Type::MemberPointerType:
2961//            {
2962//                MemberPointerType *mem_ptr_type = cast<MemberPointerType>(qual_type.getTypePtr());
2963//                QualType pointee_type = mem_ptr_type->getPointeeType();
2964//
2965//                if (ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2966//                {
2967//                    return GetIndexOfChildWithName (ast_context,
2968//                                                    mem_ptr_type->getPointeeType().getAsOpaquePtr(),
2969//                                                    name);
2970//                }
2971//            }
2972//            break;
2973//
2974        case clang::Type::LValueReference:
2975        case clang::Type::RValueReference:
2976            {
2977                ReferenceType *reference_type = cast<ReferenceType>(qual_type.getTypePtr());
2978                QualType pointee_type = reference_type->getPointeeType();
2979
2980                if (ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2981                {
2982                    return GetIndexOfChildWithName (ast_context,
2983                                                    reference_type->getPointeeType().getAsOpaquePtr(),
2984                                                    name,
2985                                                    omit_empty_base_classes);
2986                }
2987            }
2988            break;
2989
2990        case clang::Type::Pointer:
2991            {
2992                PointerType *pointer_type = cast<PointerType>(qual_type.getTypePtr());
2993                QualType pointee_type = pointer_type->getPointeeType();
2994
2995                if (ClangASTContext::IsAggregateType (pointee_type.getAsOpaquePtr()))
2996                {
2997                    return GetIndexOfChildWithName (ast_context,
2998                                                    pointer_type->getPointeeType().getAsOpaquePtr(),
2999                                                    name,
3000                                                    omit_empty_base_classes);
3001                }
3002                else
3003                {
3004//                    if (parent_name)
3005//                    {
3006//                        child_name.assign(1, '*');
3007//                        child_name += parent_name;
3008//                    }
3009//
3010//                    // We have a pointer to an simple type
3011//                    if (idx == 0)
3012//                    {
3013//                        std::pair<uint64_t, unsigned> clang_type_info = ast_context->getTypeInfo(pointee_type);
3014//                        assert(clang_type_info.first % 8 == 0);
3015//                        child_byte_size = clang_type_info.first / 8;
3016//                        child_byte_offset = 0;
3017//                        return pointee_type.getAsOpaquePtr();
3018//                    }
3019                }
3020            }
3021            break;
3022
3023        case clang::Type::Typedef:
3024            return GetIndexOfChildWithName (ast_context,
3025                                            cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr(),
3026                                            name,
3027                                            omit_empty_base_classes);
3028
3029        default:
3030            break;
3031        }
3032    }
3033    return UINT32_MAX;
3034}
3035
3036#pragma mark TagType
3037
3038bool
3039ClangASTContext::SetTagTypeKind (clang_type_t tag_clang_type, int kind)
3040{
3041    if (tag_clang_type)
3042    {
3043        QualType tag_qual_type(QualType::getFromOpaquePtr(tag_clang_type));
3044        clang::Type *clang_type = tag_qual_type.getTypePtr();
3045        if (clang_type)
3046        {
3047            TagType *tag_type = dyn_cast<TagType>(clang_type);
3048            if (tag_type)
3049            {
3050                TagDecl *tag_decl = dyn_cast<TagDecl>(tag_type->getDecl());
3051                if (tag_decl)
3052                {
3053                    tag_decl->setTagKind ((TagDecl::TagKind)kind);
3054                    return true;
3055                }
3056            }
3057        }
3058    }
3059    return false;
3060}
3061
3062
3063#pragma mark DeclContext Functions
3064
3065DeclContext *
3066ClangASTContext::GetDeclContextForType (clang_type_t clang_type)
3067{
3068    if (clang_type == NULL)
3069        return NULL;
3070
3071    QualType qual_type(QualType::getFromOpaquePtr(clang_type));
3072    const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3073    switch (type_class)
3074    {
3075    case clang::Type::FunctionNoProto:          break;
3076    case clang::Type::FunctionProto:            break;
3077    case clang::Type::IncompleteArray:          break;
3078    case clang::Type::VariableArray:            break;
3079    case clang::Type::ConstantArray:            break;
3080    case clang::Type::ExtVector:                break;
3081    case clang::Type::Vector:                   break;
3082    case clang::Type::Builtin:                  break;
3083    case clang::Type::BlockPointer:             break;
3084    case clang::Type::Pointer:                  break;
3085    case clang::Type::LValueReference:          break;
3086    case clang::Type::RValueReference:          break;
3087    case clang::Type::MemberPointer:            break;
3088    case clang::Type::Complex:                  break;
3089    case clang::Type::ObjCObject:               break;
3090    case clang::Type::ObjCInterface:            return cast<ObjCObjectType>(qual_type.getTypePtr())->getInterface();
3091    case clang::Type::ObjCObjectPointer:        return ClangASTContext::GetDeclContextForType (cast<ObjCObjectPointerType>(qual_type.getTypePtr())->getPointeeType().getAsOpaquePtr());
3092    case clang::Type::Record:                   return cast<RecordType>(qual_type)->getDecl();
3093    case clang::Type::Enum:                     return cast<EnumType>(qual_type)->getDecl();
3094    case clang::Type::Typedef:                  return ClangASTContext::GetDeclContextForType (cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr());
3095
3096    case clang::Type::TypeOfExpr:               break;
3097    case clang::Type::TypeOf:                   break;
3098    case clang::Type::Decltype:                 break;
3099    //case clang::Type::QualifiedName:          break;
3100    case clang::Type::TemplateSpecialization:   break;
3101    }
3102    // No DeclContext in this type...
3103    return NULL;
3104}
3105
3106#pragma mark Namespace Declarations
3107
3108NamespaceDecl *
3109ClangASTContext::GetUniqueNamespaceDeclaration (const char *name, const Declaration &decl, DeclContext *decl_ctx)
3110{
3111    // TODO: Do something intelligent with the Declaration object passed in
3112    // like maybe filling in the SourceLocation with it...
3113    if (name)
3114    {
3115        ASTContext *ast_context = getASTContext();
3116        if (decl_ctx == NULL)
3117            decl_ctx = ast_context->getTranslationUnitDecl();
3118        return NamespaceDecl::Create(*ast_context, decl_ctx, SourceLocation(), &ast_context->Idents.get(name));
3119    }
3120    return NULL;
3121}
3122
3123
3124#pragma mark Function Types
3125
3126FunctionDecl *
3127ClangASTContext::CreateFunctionDeclaration (const char *name, clang_type_t function_clang_type, int storage, bool is_inline)
3128{
3129    if (name)
3130    {
3131        ASTContext *ast_context = getASTContext();
3132        assert (ast_context != NULL);
3133
3134        if (name && name[0])
3135        {
3136            return FunctionDecl::Create(*ast_context,
3137                                        ast_context->getTranslationUnitDecl(),
3138                                        SourceLocation(),
3139                                        DeclarationName (&ast_context->Idents.get(name)),
3140                                        QualType::getFromOpaquePtr(function_clang_type),
3141                                        NULL,
3142                                        (FunctionDecl::StorageClass)storage,
3143                                        (FunctionDecl::StorageClass)storage,
3144                                        is_inline);
3145        }
3146        else
3147        {
3148            return FunctionDecl::Create(*ast_context,
3149                                        ast_context->getTranslationUnitDecl(),
3150                                        SourceLocation(),
3151                                        DeclarationName (),
3152                                        QualType::getFromOpaquePtr(function_clang_type),
3153                                        NULL,
3154                                        (FunctionDecl::StorageClass)storage,
3155                                        (FunctionDecl::StorageClass)storage,
3156                                        is_inline);
3157        }
3158    }
3159    return NULL;
3160}
3161
3162clang_type_t
3163ClangASTContext::CreateFunctionType (ASTContext *ast_context,
3164                                     clang_type_t result_type,
3165                                     clang_type_t *args,
3166                                     unsigned num_args,
3167                                     bool is_variadic,
3168                                     unsigned type_quals)
3169{
3170    assert (ast_context != NULL);
3171    std::vector<QualType> qual_type_args;
3172    for (unsigned i=0; i<num_args; ++i)
3173        qual_type_args.push_back (QualType::getFromOpaquePtr(args[i]));
3174
3175    // TODO: Detect calling convention in DWARF?
3176    return ast_context->getFunctionType(QualType::getFromOpaquePtr(result_type),
3177                                        qual_type_args.empty() ? NULL : &qual_type_args.front(),
3178                                        qual_type_args.size(),
3179                                        is_variadic,
3180                                        type_quals,
3181                                        false,  // hasExceptionSpec
3182                                        false,  // hasAnyExceptionSpec,
3183                                        0,      // NumExs
3184                                        0,      // const QualType *ExArray
3185                                        FunctionType::ExtInfo ()).getAsOpaquePtr();    // NoReturn);
3186}
3187
3188ParmVarDecl *
3189ClangASTContext::CreateParameterDeclaration (const char *name, clang_type_t param_type, int storage)
3190{
3191    ASTContext *ast_context = getASTContext();
3192    assert (ast_context != NULL);
3193    return ParmVarDecl::Create(*ast_context,
3194                                ast_context->getTranslationUnitDecl(),
3195                                SourceLocation(),
3196                                name && name[0] ? &ast_context->Idents.get(name) : NULL,
3197                                QualType::getFromOpaquePtr(param_type),
3198                                NULL,
3199                                (VarDecl::StorageClass)storage,
3200                                (VarDecl::StorageClass)storage,
3201                                0);
3202}
3203
3204void
3205ClangASTContext::SetFunctionParameters (FunctionDecl *function_decl, ParmVarDecl **params, unsigned num_params)
3206{
3207    if (function_decl)
3208        function_decl->setParams (params, num_params);
3209}
3210
3211
3212#pragma mark Array Types
3213
3214clang_type_t
3215ClangASTContext::CreateArrayType (clang_type_t element_type, size_t element_count, uint32_t bit_stride)
3216{
3217    if (element_type)
3218    {
3219        ASTContext *ast_context = getASTContext();
3220        assert (ast_context != NULL);
3221        llvm::APInt ap_element_count (64, element_count);
3222        return ast_context->getConstantArrayType(QualType::getFromOpaquePtr(element_type),
3223                                                 ap_element_count,
3224                                                 ArrayType::Normal,
3225                                                 0).getAsOpaquePtr(); // ElemQuals
3226    }
3227    return NULL;
3228}
3229
3230
3231#pragma mark TagDecl
3232
3233bool
3234ClangASTContext::StartTagDeclarationDefinition (clang_type_t clang_type)
3235{
3236    if (clang_type)
3237    {
3238        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3239        clang::Type *t = qual_type.getTypePtr();
3240        if (t)
3241        {
3242            TagType *tag_type = dyn_cast<TagType>(t);
3243            if (tag_type)
3244            {
3245                TagDecl *tag_decl = tag_type->getDecl();
3246                if (tag_decl)
3247                {
3248                    tag_decl->startDefinition();
3249                    return true;
3250                }
3251            }
3252        }
3253    }
3254    return false;
3255}
3256
3257bool
3258ClangASTContext::CompleteTagDeclarationDefinition (clang_type_t clang_type)
3259{
3260    if (clang_type)
3261    {
3262        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3263
3264        CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
3265
3266        if (cxx_record_decl)
3267        {
3268            cxx_record_decl->completeDefinition();
3269
3270            return true;
3271        }
3272
3273        ObjCObjectType *objc_class_type = dyn_cast<ObjCObjectType>(qual_type);
3274
3275        if (objc_class_type)
3276        {
3277            ObjCInterfaceDecl *class_interface_decl = objc_class_type->getInterface();
3278
3279            class_interface_decl->setForwardDecl(false);
3280        }
3281
3282        const EnumType *enum_type = dyn_cast<EnumType>(qual_type.getTypePtr());
3283
3284        if (enum_type)
3285        {
3286            EnumDecl *enum_decl = enum_type->getDecl();
3287
3288            if (enum_decl)
3289            {
3290                /// TODO This really needs to be fixed.
3291
3292                unsigned NumPositiveBits = 1;
3293                unsigned NumNegativeBits = 0;
3294
3295                ASTContext *ast_context = getASTContext();
3296
3297                QualType promotion_qual_type;
3298                // If the enum integer type is less than an integer in bit width,
3299                // then we must promote it to an integer size.
3300                if (ast_context->getTypeSize(enum_decl->getIntegerType()) < ast_context->getTypeSize(ast_context->IntTy))
3301                {
3302                    if (enum_decl->getIntegerType()->isSignedIntegerType())
3303                        promotion_qual_type = ast_context->IntTy;
3304                    else
3305                        promotion_qual_type = ast_context->UnsignedIntTy;
3306                }
3307                else
3308                    promotion_qual_type = enum_decl->getIntegerType();
3309
3310                enum_decl->completeDefinition(enum_decl->getIntegerType(), promotion_qual_type, NumPositiveBits, NumNegativeBits);
3311                return true;
3312            }
3313        }
3314    }
3315    return false;
3316}
3317
3318
3319#pragma mark Enumeration Types
3320
3321clang_type_t
3322ClangASTContext::CreateEnumerationType (const Declaration &decl, const char *name, clang_type_t integer_qual_type)
3323{
3324    // TODO: Do something intelligent with the Declaration object passed in
3325    // like maybe filling in the SourceLocation with it...
3326    ASTContext *ast_context = getASTContext();
3327    assert (ast_context != NULL);
3328
3329    // TODO: ask about these...
3330//    const bool IsScoped = false;
3331//    const bool IsFixed = false;
3332
3333    EnumDecl *enum_decl = EnumDecl::Create (*ast_context,
3334                                            ast_context->getTranslationUnitDecl(),
3335                                            SourceLocation(),
3336                                            name && name[0] ? &ast_context->Idents.get(name) : NULL,
3337                                            SourceLocation(),
3338                                            NULL, false, false); //IsScoped, IsFixed);
3339    if (enum_decl)
3340    {
3341        // TODO: check if we should be setting the promotion type too?
3342        enum_decl->setIntegerType(QualType::getFromOpaquePtr (integer_qual_type));
3343        return ast_context->getTagDeclType(enum_decl).getAsOpaquePtr();
3344    }
3345    return NULL;
3346}
3347
3348clang_type_t
3349ClangASTContext::GetEnumerationIntegerType (clang_type_t enum_clang_type)
3350{
3351    QualType enum_qual_type (QualType::getFromOpaquePtr(enum_clang_type));
3352
3353    clang::Type *clang_type = enum_qual_type.getTypePtr();
3354    if (clang_type)
3355    {
3356        const EnumType *enum_type = dyn_cast<EnumType>(clang_type);
3357        if (enum_type)
3358        {
3359            EnumDecl *enum_decl = enum_type->getDecl();
3360            if (enum_decl)
3361                return enum_decl->getIntegerType().getAsOpaquePtr();
3362        }
3363    }
3364    return NULL;
3365}
3366bool
3367ClangASTContext::AddEnumerationValueToEnumerationType
3368(
3369    clang_type_t enum_clang_type,
3370    clang_type_t enumerator_clang_type,
3371    const Declaration &decl,
3372    const char *name,
3373    int64_t enum_value,
3374    uint32_t enum_value_bit_size
3375)
3376{
3377    if (enum_clang_type && enumerator_clang_type && name)
3378    {
3379        // TODO: Do something intelligent with the Declaration object passed in
3380        // like maybe filling in the SourceLocation with it...
3381        ASTContext *ast_context = getASTContext();
3382        IdentifierTable *identifier_table = getIdentifierTable();
3383
3384        assert (ast_context != NULL);
3385        assert (identifier_table != NULL);
3386        QualType enum_qual_type (QualType::getFromOpaquePtr(enum_clang_type));
3387
3388        clang::Type *clang_type = enum_qual_type.getTypePtr();
3389        if (clang_type)
3390        {
3391            const EnumType *enum_type = dyn_cast<EnumType>(clang_type);
3392
3393            if (enum_type)
3394            {
3395                llvm::APSInt enum_llvm_apsint(enum_value_bit_size, false);
3396                enum_llvm_apsint = enum_value;
3397                EnumConstantDecl *enumerator_decl =
3398                    EnumConstantDecl::Create(*ast_context,
3399                                             enum_type->getDecl(),
3400                                             SourceLocation(),
3401                                             name ? &identifier_table->get(name) : NULL,    // Identifier
3402                                             QualType::getFromOpaquePtr(enumerator_clang_type),
3403                                             NULL,
3404                                             enum_llvm_apsint);
3405
3406                if (enumerator_decl)
3407                {
3408                    enum_type->getDecl()->addDecl(enumerator_decl);
3409                    return true;
3410                }
3411            }
3412        }
3413    }
3414    return false;
3415}
3416
3417#pragma mark Pointers & References
3418
3419clang_type_t
3420ClangASTContext::CreatePointerType (clang_type_t clang_type)
3421{
3422    if (clang_type)
3423    {
3424        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3425
3426        const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3427        switch (type_class)
3428        {
3429        case clang::Type::ObjCObject:
3430        case clang::Type::ObjCInterface:
3431            return getASTContext()->getObjCObjectPointerType(qual_type).getAsOpaquePtr();
3432
3433        default:
3434            return getASTContext()->getPointerType(qual_type).getAsOpaquePtr();
3435        }
3436    }
3437    return NULL;
3438}
3439
3440clang_type_t
3441ClangASTContext::CreateLValueReferenceType (clang_type_t clang_type)
3442{
3443    if (clang_type)
3444        return getASTContext()->getLValueReferenceType (QualType::getFromOpaquePtr(clang_type)).getAsOpaquePtr();
3445    return NULL;
3446}
3447
3448clang_type_t
3449ClangASTContext::CreateRValueReferenceType (clang_type_t clang_type)
3450{
3451    if (clang_type)
3452        return getASTContext()->getRValueReferenceType (QualType::getFromOpaquePtr(clang_type)).getAsOpaquePtr();
3453    return NULL;
3454}
3455
3456clang_type_t
3457ClangASTContext::CreateMemberPointerType (clang_type_t clang_pointee_type, clang_type_t clang_class_type)
3458{
3459    if (clang_pointee_type && clang_pointee_type)
3460        return getASTContext()->getMemberPointerType(QualType::getFromOpaquePtr(clang_pointee_type),
3461                                                     QualType::getFromOpaquePtr(clang_class_type).getTypePtr()).getAsOpaquePtr();
3462    return NULL;
3463}
3464
3465size_t
3466ClangASTContext::GetPointerBitSize ()
3467{
3468    ASTContext *ast_context = getASTContext();
3469    return ast_context->getTypeSize(ast_context->VoidPtrTy);
3470}
3471
3472bool
3473ClangASTContext::IsPointerOrReferenceType (clang_type_t clang_type, clang_type_t*target_type)
3474{
3475    if (clang_type == NULL)
3476        return false;
3477
3478    QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3479    const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3480    switch (type_class)
3481    {
3482    case clang::Type::Builtin:
3483        switch (cast<clang::BuiltinType>(qual_type)->getKind())
3484        {
3485        default:
3486            break;
3487        case clang::BuiltinType::ObjCId:
3488        case clang::BuiltinType::ObjCClass:
3489            return true;
3490        }
3491        return false;
3492    case clang::Type::ObjCObjectPointer:
3493        if (target_type)
3494            *target_type = cast<ObjCObjectPointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3495        return true;
3496    case clang::Type::BlockPointer:
3497        if (target_type)
3498            *target_type = cast<BlockPointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3499        return true;
3500    case clang::Type::Pointer:
3501        if (target_type)
3502            *target_type = cast<PointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3503        return true;
3504    case clang::Type::MemberPointer:
3505        if (target_type)
3506            *target_type = cast<MemberPointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3507        return true;
3508    case clang::Type::LValueReference:
3509        if (target_type)
3510            *target_type = cast<LValueReferenceType>(qual_type)->desugar().getAsOpaquePtr();
3511        return true;
3512    case clang::Type::RValueReference:
3513        if (target_type)
3514            *target_type = cast<LValueReferenceType>(qual_type)->desugar().getAsOpaquePtr();
3515        return true;
3516    case clang::Type::Typedef:
3517        return ClangASTContext::IsPointerOrReferenceType (cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr());
3518    default:
3519        break;
3520    }
3521    return false;
3522}
3523
3524bool
3525ClangASTContext::IsIntegerType (clang_type_t clang_type, bool &is_signed)
3526{
3527    if (!clang_type)
3528        return false;
3529
3530    QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3531    const BuiltinType *builtin_type = dyn_cast<BuiltinType>(qual_type->getCanonicalTypeInternal());
3532
3533    if (builtin_type)
3534    {
3535        if (builtin_type->isInteger())
3536            is_signed = builtin_type->isSignedInteger();
3537
3538        return true;
3539    }
3540
3541    return false;
3542}
3543
3544bool
3545ClangASTContext::IsPointerType (clang_type_t clang_type, clang_type_t*target_type)
3546{
3547    if (clang_type)
3548    {
3549        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3550        const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3551        switch (type_class)
3552        {
3553        case clang::Type::Builtin:
3554            switch (cast<clang::BuiltinType>(qual_type)->getKind())
3555            {
3556            default:
3557                break;
3558            case clang::BuiltinType::ObjCId:
3559            case clang::BuiltinType::ObjCClass:
3560                return true;
3561            }
3562            return false;
3563        case clang::Type::ObjCObjectPointer:
3564            if (target_type)
3565                *target_type = cast<ObjCObjectPointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3566            return true;
3567        case clang::Type::BlockPointer:
3568            if (target_type)
3569                *target_type = cast<BlockPointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3570            return true;
3571        case clang::Type::Pointer:
3572            if (target_type)
3573                *target_type = cast<PointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3574            return true;
3575        case clang::Type::MemberPointer:
3576            if (target_type)
3577                *target_type = cast<MemberPointerType>(qual_type)->getPointeeType().getAsOpaquePtr();
3578            return true;
3579        case clang::Type::Typedef:
3580            return ClangASTContext::IsPointerOrReferenceType (cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr(), target_type);
3581        default:
3582            break;
3583        }
3584    }
3585    return false;
3586}
3587
3588bool
3589ClangASTContext::IsFloatingPointType (clang_type_t clang_type, uint32_t &count, bool &is_complex)
3590{
3591    if (clang_type)
3592    {
3593        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3594
3595        if (const BuiltinType *BT = dyn_cast<BuiltinType>(qual_type->getCanonicalTypeInternal()))
3596        {
3597            clang::BuiltinType::Kind kind = BT->getKind();
3598            if (kind >= BuiltinType::Float && kind <= BuiltinType::LongDouble)
3599            {
3600                count = 1;
3601                is_complex = false;
3602                return true;
3603            }
3604        }
3605        else if (const ComplexType *CT = dyn_cast<ComplexType>(qual_type->getCanonicalTypeInternal()))
3606        {
3607            if (IsFloatingPointType(CT->getElementType().getAsOpaquePtr(), count, is_complex))
3608            {
3609                count = 2;
3610                is_complex = true;
3611                return true;
3612            }
3613        }
3614        else if (const VectorType *VT = dyn_cast<VectorType>(qual_type->getCanonicalTypeInternal()))
3615        {
3616            if (IsFloatingPointType(VT->getElementType().getAsOpaquePtr(), count, is_complex))
3617            {
3618                count = VT->getNumElements();
3619                is_complex = false;
3620                return true;
3621            }
3622        }
3623    }
3624    return false;
3625}
3626
3627
3628bool
3629ClangASTContext::GetCXXClassName (clang_type_t clang_type, std::string &class_name)
3630{
3631    if (clang_type)
3632    {
3633        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3634
3635        CXXRecordDecl *cxx_record_decl = qual_type->getAsCXXRecordDecl();
3636        if (cxx_record_decl)
3637        {
3638            class_name.assign (cxx_record_decl->getIdentifier()->getNameStart());
3639            return true;
3640        }
3641    }
3642    class_name.clear();
3643    return false;
3644}
3645
3646
3647bool
3648ClangASTContext::IsCXXClassType (clang_type_t clang_type)
3649{
3650    if (clang_type)
3651    {
3652        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3653        if (qual_type->getAsCXXRecordDecl() != NULL)
3654            return true;
3655    }
3656    return false;
3657}
3658
3659bool
3660ClangASTContext::IsObjCClassType (clang_type_t clang_type)
3661{
3662    if (clang_type)
3663    {
3664        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3665        if (qual_type->isObjCObjectOrInterfaceType())
3666            return true;
3667    }
3668    return false;
3669}
3670
3671
3672bool
3673ClangASTContext::IsCharType (clang_type_t clang_type)
3674{
3675    if (clang_type)
3676        return QualType::getFromOpaquePtr(clang_type)->isCharType();
3677    return false;
3678}
3679
3680bool
3681ClangASTContext::IsCStringType (clang_type_t clang_type, uint32_t &length)
3682{
3683    clang_type_t pointee_or_element_clang_type = NULL;
3684    Flags type_flags (ClangASTContext::GetTypeInfo (clang_type, NULL, &pointee_or_element_clang_type));
3685
3686    if (pointee_or_element_clang_type == NULL)
3687        return false;
3688
3689    if (type_flags.AnySet (eTypeIsArray | eTypeIsPointer))
3690    {
3691        QualType pointee_or_element_qual_type (QualType::getFromOpaquePtr (pointee_or_element_clang_type));
3692
3693        if (pointee_or_element_qual_type.getUnqualifiedType()->isCharType())
3694        {
3695            QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3696            if (type_flags.Test (eTypeIsArray))
3697            {
3698                // We know the size of the array and it could be a C string
3699                // since it is an array of characters
3700                length = cast<ConstantArrayType>(qual_type.getTypePtr())->getSize().getLimitedValue();
3701                return true;
3702            }
3703            else
3704            {
3705                length = 0;
3706                return true;
3707            }
3708
3709        }
3710    }
3711    return false;
3712}
3713
3714bool
3715ClangASTContext::IsFunctionPointerType (clang_type_t clang_type)
3716{
3717    if (clang_type)
3718    {
3719        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3720
3721        if (qual_type->isFunctionPointerType())
3722            return true;
3723
3724        const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3725        switch (type_class)
3726        {
3727        case clang::Type::Typedef:
3728            return ClangASTContext::IsFunctionPointerType (cast<TypedefType>(qual_type)->LookThroughTypedefs().getAsOpaquePtr());
3729
3730        case clang::Type::LValueReference:
3731        case clang::Type::RValueReference:
3732            {
3733                ReferenceType *reference_type = cast<ReferenceType>(qual_type.getTypePtr());
3734                if (reference_type)
3735                    return ClangASTContext::IsFunctionPointerType (reference_type->getPointeeType().getAsOpaquePtr());
3736            }
3737            break;
3738        }
3739    }
3740    return false;
3741}
3742
3743size_t
3744ClangASTContext::GetArraySize (clang_type_t clang_type)
3745{
3746    if (clang_type)
3747    {
3748        ConstantArrayType *array = cast<ConstantArrayType>(QualType::getFromOpaquePtr(clang_type).getTypePtr());
3749        if (array)
3750            return array->getSize().getLimitedValue();
3751    }
3752    return 0;
3753}
3754
3755bool
3756ClangASTContext::IsArrayType (clang_type_t clang_type, clang_type_t*member_type, uint64_t *size)
3757{
3758    if (!clang_type)
3759        return false;
3760
3761    QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3762
3763    const clang::Type::TypeClass type_class = qual_type->getTypeClass();
3764    switch (type_class)
3765    {
3766    case clang::Type::ConstantArray:
3767        if (member_type)
3768            *member_type = cast<ConstantArrayType>(qual_type)->getElementType().getAsOpaquePtr();
3769        if (size)
3770            *size = cast<ConstantArrayType>(qual_type)->getSize().getLimitedValue(ULONG_LONG_MAX);
3771        return true;
3772    case clang::Type::IncompleteArray:
3773        if (member_type)
3774            *member_type = cast<IncompleteArrayType>(qual_type)->getElementType().getAsOpaquePtr();
3775        if (size)
3776            *size = 0;
3777        return true;
3778    case clang::Type::VariableArray:
3779        if (member_type)
3780            *member_type = cast<VariableArrayType>(qual_type)->getElementType().getAsOpaquePtr();
3781        if (size)
3782            *size = 0;
3783    case clang::Type::DependentSizedArray:
3784        if (member_type)
3785            *member_type = cast<DependentSizedArrayType>(qual_type)->getElementType().getAsOpaquePtr();
3786        if (size)
3787            *size = 0;
3788        return true;
3789    }
3790    return false;
3791}
3792
3793
3794#pragma mark Typedefs
3795
3796clang_type_t
3797ClangASTContext::CreateTypedefType (const char *name, clang_type_t clang_type, DeclContext *decl_ctx)
3798{
3799    if (clang_type)
3800    {
3801        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3802        ASTContext *ast_context = getASTContext();
3803        IdentifierTable *identifier_table = getIdentifierTable();
3804        assert (ast_context != NULL);
3805        assert (identifier_table != NULL);
3806        if (decl_ctx == NULL)
3807            decl_ctx = ast_context->getTranslationUnitDecl();
3808        TypedefDecl *decl = TypedefDecl::Create(*ast_context,
3809                                                decl_ctx,
3810                                                SourceLocation(),
3811                                                name ? &identifier_table->get(name) : NULL, // Identifier
3812                                                ast_context->CreateTypeSourceInfo(qual_type));
3813
3814        // Get a uniqued QualType for the typedef decl type
3815        return ast_context->getTypedefType (decl).getAsOpaquePtr();
3816    }
3817    return NULL;
3818}
3819
3820
3821std::string
3822ClangASTContext::GetTypeName (clang_type_t opaque_qual_type)
3823{
3824    std::string return_name;
3825
3826    QualType qual_type(QualType::getFromOpaquePtr(opaque_qual_type));
3827
3828    const TypedefType *typedef_type = qual_type->getAs<TypedefType>();
3829    if (typedef_type)
3830    {
3831        const TypedefDecl *typedef_decl = typedef_type->getDecl();
3832        return_name = typedef_decl->getQualifiedNameAsString();
3833    }
3834    else
3835    {
3836        return_name = qual_type.getAsString();
3837    }
3838
3839    return return_name;
3840}
3841
3842// Disable this for now since I can't seem to get a nicely formatted float
3843// out of the APFloat class without just getting the float, double or quad
3844// and then using a formatted print on it which defeats the purpose. We ideally
3845// would like to get perfect string values for any kind of float semantics
3846// so we can support remote targets. The code below also requires a patch to
3847// llvm::APInt.
3848//bool
3849//ClangASTContext::ConvertFloatValueToString (ASTContext *ast_context, clang_type_t clang_type, const uint8_t* bytes, size_t byte_size, int apint_byte_order, std::string &float_str)
3850//{
3851//  uint32_t count = 0;
3852//  bool is_complex = false;
3853//  if (ClangASTContext::IsFloatingPointType (clang_type, count, is_complex))
3854//  {
3855//      unsigned num_bytes_per_float = byte_size / count;
3856//      unsigned num_bits_per_float = num_bytes_per_float * 8;
3857//
3858//      float_str.clear();
3859//      uint32_t i;
3860//      for (i=0; i<count; i++)
3861//      {
3862//          APInt ap_int(num_bits_per_float, bytes + i * num_bytes_per_float, (APInt::ByteOrder)apint_byte_order);
3863//          bool is_ieee = false;
3864//          APFloat ap_float(ap_int, is_ieee);
3865//          char s[1024];
3866//          unsigned int hex_digits = 0;
3867//          bool upper_case = false;
3868//
3869//          if (ap_float.convertToHexString(s, hex_digits, upper_case, APFloat::rmNearestTiesToEven) > 0)
3870//          {
3871//              if (i > 0)
3872//                  float_str.append(", ");
3873//              float_str.append(s);
3874//              if (i == 1 && is_complex)
3875//                  float_str.append(1, 'i');
3876//          }
3877//      }
3878//      return !float_str.empty();
3879//  }
3880//  return false;
3881//}
3882
3883size_t
3884ClangASTContext::ConvertStringToFloatValue (ASTContext *ast_context, clang_type_t clang_type, const char *s, uint8_t *dst, size_t dst_size)
3885{
3886    if (clang_type)
3887    {
3888        QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3889        uint32_t count = 0;
3890        bool is_complex = false;
3891        if (ClangASTContext::IsFloatingPointType (clang_type, count, is_complex))
3892        {
3893            // TODO: handle complex and vector types
3894            if (count != 1)
3895                return false;
3896
3897            StringRef s_sref(s);
3898            APFloat ap_float(ast_context->getFloatTypeSemantics(qual_type), s_sref);
3899
3900            const uint64_t bit_size = ast_context->getTypeSize (qual_type);
3901            const uint64_t byte_size = bit_size / 8;
3902            if (dst_size >= byte_size)
3903            {
3904                if (bit_size == sizeof(float)*8)
3905                {
3906                    float float32 = ap_float.convertToFloat();
3907                    ::memcpy (dst, &float32, byte_size);
3908                    return byte_size;
3909                }
3910                else if (bit_size >= 64)
3911                {
3912                    llvm::APInt ap_int(ap_float.bitcastToAPInt());
3913                    ::memcpy (dst, ap_int.getRawData(), byte_size);
3914                    return byte_size;
3915                }
3916            }
3917        }
3918    }
3919    return 0;
3920}
3921
3922unsigned
3923ClangASTContext::GetTypeQualifiers(clang_type_t clang_type)
3924{
3925    assert (clang_type);
3926
3927    QualType qual_type (QualType::getFromOpaquePtr(clang_type));
3928
3929    return qual_type.getQualifiers().getCVRQualifiers();
3930}
3931