1 /*
2  * Copyright 2010-2012, The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 #ifndef _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_TYPE_H_  // NOLINT
18 #define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_TYPE_H_
19 
20 #include <list>
21 #include <set>
22 #include <string>
23 #include <sstream>
24 
25 #include "clang/AST/Decl.h"
26 #include "clang/AST/Type.h"
27 
28 #include "llvm/ADT/SmallPtrSet.h"
29 #include "llvm/ADT/StringMap.h"
30 #include "llvm/ADT/StringRef.h"
31 
32 #include "llvm/Support/ManagedStatic.h"
33 
34 #include "slang_rs_exportable.h"
35 
36 #define RS_PADDING_FIELD_NAME ".rs.padding"
37 
GetCanonicalType(const clang::Type * T)38 inline const clang::Type* GetCanonicalType(const clang::Type* T) {
39   if (T == nullptr) {
40     return  nullptr;
41   }
42   return T->getCanonicalTypeInternal().getTypePtr();
43 }
44 
GetCanonicalType(clang::QualType QT)45 inline const clang::Type* GetCanonicalType(clang::QualType QT) {
46   return GetCanonicalType(QT.getTypePtr());
47 }
48 
GetExtVectorElementType(const clang::ExtVectorType * T)49 inline const clang::Type* GetExtVectorElementType(const clang::ExtVectorType *T) {
50   if (T == nullptr) {
51     return nullptr;
52   }
53   return GetCanonicalType(T->getElementType());
54 }
55 
GetPointeeType(const clang::PointerType * T)56 inline const clang::Type* GetPointeeType(const clang::PointerType *T) {
57   if (T == nullptr) {
58     return nullptr;
59   }
60   return GetCanonicalType(T->getPointeeType());
61 }
62 
GetConstantArrayElementType(const clang::ConstantArrayType * T)63 inline const clang::Type* GetConstantArrayElementType(const clang::ConstantArrayType *T) {
64   if (T == nullptr) {
65     return nullptr;
66   }
67   return GetCanonicalType(T->getElementType());
68 }
69 
70 
71 namespace llvm {
72   class Type;
73 }   // namespace llvm
74 
75 namespace slang {
76 
77 class RSContext;
78 
79 // Broad grouping of the data types
80 enum DataTypeCategory {
81     PrimitiveDataType,
82     MatrixDataType,
83     ObjectDataType
84 };
85 
86 // Denote whether a particular export is intended for a legacy kernel argument.
87 // NotLegacyKernelArgument - not a legacy kernel argument (might not even be a
88 //                           kernel argument).
89 // LegacyKernelArgument    - legacy pass-by-reference kernel argument using
90 //                           pointers and no kernel attribute.
91 enum ExportKind {
92    NotLegacyKernelArgument,
93    LegacyKernelArgument
94  };
95 
96 
97 // From graphics/java/android/renderscript/Element.java: Element.DataType
98 /* NOTE: The values of the enums are found compiled in the bit code (i.e. as
99  * values, not symbolic.  When adding new types, you must add them to the end.
100  * If removing types, you can't re-use the integer value.
101  *
102  * TODO: but if you do this, you won't be able to keep using First* & Last*
103  * for validation.
104  *
105  * IMPORTANT: This enum should correspond one-for-one to the entries found in the
106  * gReflectionsTypes table (except for the two negative numbers).  Don't edit one without
107  * the other.
108  */
109 enum DataType {
110     DataTypeIsStruct = -2,
111     DataTypeUnknown = -1,
112 
113     DataTypeFloat16 = 0,
114     DataTypeFloat32 = 1,
115     DataTypeFloat64 = 2,
116     DataTypeSigned8 = 3,
117     DataTypeSigned16 = 4,
118     DataTypeSigned32 = 5,
119     DataTypeSigned64 = 6,
120     DataTypeUnsigned8 = 7,
121     DataTypeUnsigned16 = 8,
122     DataTypeUnsigned32 = 9,
123     DataTypeUnsigned64 = 10,
124     DataTypeBoolean = 11,
125     DataTypeUnsigned565 = 12,
126     DataTypeUnsigned5551 = 13,
127     DataTypeUnsigned4444 = 14,
128 
129     DataTypeRSMatrix2x2 = 15,
130     DataTypeRSMatrix3x3 = 16,
131     DataTypeRSMatrix4x4 = 17,
132 
133     DataTypeRSElement = 18,
134     DataTypeRSType = 19,
135     DataTypeRSAllocation = 20,
136     DataTypeRSSampler = 21,
137     DataTypeRSScript = 22,
138     DataTypeRSMesh = 23,
139     DataTypeRSPath = 24,
140     DataTypeRSProgramFragment = 25,
141     DataTypeRSProgramVertex = 26,
142     DataTypeRSProgramRaster = 27,
143     DataTypeRSProgramStore = 28,
144     DataTypeRSFont = 29,
145 
146     // This should always be last and correspond to the size of the gReflectionTypes table.
147     DataTypeMax
148 };
149 
150 typedef struct {
151     // The data type category
152     DataTypeCategory category;
153     // "Common name" in script (C99)
154     const char * s_name;
155     // The element name in RenderScript
156     const char * rs_type;
157     // The short element name in RenderScript
158     const char * rs_short_type;
159     // The size of the type in bits
160     uint32_t size_in_bits;
161     // The reflected name in C code
162     const char * c_name;
163     // The reflected name in Java code
164     const char * java_name;
165     // The array type that is compatible with Allocations of our type,
166     // for use with copyTo(), copyFrom()
167     const char * java_array_element_name;
168     // The prefix for C vector types
169     const char * rs_c_vector_prefix;
170     // The prefix for Java vector types
171     const char * rs_java_vector_prefix;
172     // Indicates an unsigned type undergoing Java promotion
173     bool java_promotion;
174 } RSReflectionType;
175 
176 
177 typedef struct RSReflectionTypeData_rec {
178     const RSReflectionType *type;
179     uint32_t vecSize;   // number of elements; one if not a vector
180     bool isPointer;
181     uint32_t arraySize; // number of elements; zero if not an array
182 
183     // Subelements
184     //std::vector<const struct RSReflectionTypeData_rec *> fields;
185     //std::vector< std::string > fieldNames;
186     //std::vector< uint32_t> fieldOffsetBytes;
187 } RSReflectionTypeData;
188 
189 // Make a name for types that are too complicated to create the real names.
190 std::string CreateDummyName(const char *type, const std::string &name);
191 
IsDummyName(const llvm::StringRef & Name)192 inline bool IsDummyName(const llvm::StringRef &Name) {
193   return Name.startswith("<");
194 }
195 
196 class RSExportType : public RSExportable {
197   friend class RSExportElement;
198  public:
199   typedef enum {
200     ExportClassPrimitive,
201     ExportClassPointer,
202     ExportClassVector,
203     ExportClassMatrix,
204     ExportClassConstantArray,
205     ExportClassRecord
206   } ExportClass;
207 
208   void convertToRTD(RSReflectionTypeData *rtd) const;
209 
210  private:
211   ExportClass mClass;
212   std::string mName;
213 
214   // Cache the result after calling convertToLLVMType() at the first time
215   mutable llvm::Type *mLLVMType;
216 
217  protected:
218   RSExportType(RSContext *Context,
219                ExportClass Class,
220                const llvm::StringRef &Name,
221                clang::SourceLocation Loc = clang::SourceLocation());
222 
223   // Let's make it private since there're some prerequisites to call this
224   // function.
225   //
226   // @T was normalized by calling RSExportType::NormalizeType().
227   // @TypeName was retrieved from RSExportType::GetTypeName() before calling
228   //           this.
229   // @EK denotes whether this @T is being used for a legacy kernel argument or
230   //     something else.
231   //
232   static RSExportType *Create(RSContext *Context,
233                               const clang::Type *T,
234                               const llvm::StringRef &TypeName,
235                               ExportKind EK);
236 
237   static llvm::StringRef GetTypeName(const clang::Type *T);
238 
239   // This function convert the RSExportType to LLVM type. Actually, it should be
240   // "convert Clang type to LLVM type." However, clang doesn't make this API
241   // (lib/CodeGen/CodeGenTypes.h) public, we need to do by ourselves.
242   //
243   // Once we can get LLVM type, we can use LLVM to get alignment information,
244   // allocation size of a given type and structure layout that LLVM used
245   // (all of these information are target dependent) without dealing with these
246   // by ourselves.
247   virtual llvm::Type *convertToLLVMType() const = 0;
248   // Record type may recursively reference its type definition. We need a
249   // temporary type setup before the type construction gets done.
setAbstractLLVMType(llvm::Type * LLVMType)250   inline void setAbstractLLVMType(llvm::Type *LLVMType) const {
251     mLLVMType = LLVMType;
252   }
253 
254   virtual ~RSExportType();
255 
256  public:
257   // This function additionally verifies that the Type T is exportable.
258   // If it is not, this function returns false. Otherwise it returns true.
259   static bool NormalizeType(const clang::Type *&T,
260                             llvm::StringRef &TypeName,
261                             RSContext *Context,
262                             const clang::VarDecl *VD,
263                             ExportKind EK);
264 
265   // This function checks whether the specified type can be handled by RS/FS.
266   // If it cannot, this function returns false. Otherwise it returns true.
267   // Filterscript has additional restrictions on supported types.
268   static bool ValidateType(slang::RSContext *Context, clang::ASTContext &C,
269                            clang::QualType QT, const clang::NamedDecl *ND,
270                            clang::SourceLocation Loc, unsigned int TargetAPI,
271                            bool IsFilterscript, bool IsExtern);
272 
273   // This function ensures that the VarDecl can be properly handled by RS.
274   // If it cannot, this function returns false. Otherwise it returns true.
275   // Filterscript has additional restrictions on supported types.
276   static bool ValidateVarDecl(slang::RSContext *Context, clang::VarDecl *VD,
277                               unsigned int TargetAPI, bool IsFilterscript);
278 
279   // @T may not be normalized
280   static RSExportType *Create(RSContext *Context, const clang::Type *T,
281                               ExportKind EK,
282                               // T is type of VD or of subobject within VD
283                               const clang::VarDecl *VD = nullptr);
284   static RSExportType *CreateFromDecl(RSContext *Context,
285                                       const clang::VarDecl *VD);
286 
287   static const clang::Type *GetTypeOfDecl(const clang::DeclaratorDecl *DD);
288 
getClass()289   inline ExportClass getClass() const { return mClass; }
290 
getLLVMType()291   inline llvm::Type *getLLVMType() const {
292     if (mLLVMType == nullptr)
293       mLLVMType = convertToLLVMType();
294     return mLLVMType;
295   }
296 
297   // Return the maximum number of bytes that may be written when this type is stored.
298   virtual size_t getStoreSize() const;
299 
300   // Return the distance in bytes between successive elements of this type; it includes padding.
301   virtual size_t getAllocSize() const;
302 
getName()303   inline const std::string &getName() const { return mName; }
304 
getElementName()305   virtual std::string getElementName() const {
306     // Base case is actually an invalid C/Java identifier.
307     return "@@INVALID@@";
308   }
309 
310   virtual bool keep();
311   // matchODR(): a helper function for Slang::checkODR() on ODR validation
312   //
313   // The LookInto parameter dictates whether to recursively validate member
314   // types of given compound types. This currently only affects struct
315   // (RSExportRecordType); it has no effect on primitive types, vector types,
316   // or matrix types.
317   //
318   // Consider the following pseudo code of nested struct types:
319   //
320   // Translation unit #1:     Translation unit #2:
321   //
322   // struct Name(AA) {        struct Name(BB) {
323   //   Type(aa) aa;             Type(bb) bb;
324   // };                       };
325   //
326   // struct Name(A)  {        struct Name(B) {
327   //   struct Name(AA) a;       struct Name(BB) b;
328   // };                       };
329   //
330   // Case 1:
331   // Assuming aa and bb do not match (say mismatching just in field name), but
332   // the rest does, then the desirable behavior is to report an ODR violation
333   // on struct BB (vs. struct AA) but not on struct B (vs. struct A), because
334   // BB is the tightest enclosing declaration of the violation, not B.
335   //
336   // For this case, RSExportRecordType::matchODR() has the following behavior:
337   //
338   // A.matchODR(B, true) should NOT report an ODR violation;
339   // AA.matchODR(BB, true) should report an ODR violation w.r.t. struct BB;
340   // A.matchODR(B, false) should not report an error;
341   // AA.matchODR(BB, false) should not report an error.
342   //
343   // Slang::checkODR() acts as a driver for this validation case. It calls
344   // A.matchODR() and AA.matchODR() comparing against B and BB respectively.
345   //
346   // By setting LookInto true when Slang::checkODR() calls matchODR() with
347   // the outermost compound type, and false with any recursively discovered
348   // types, we can ensure the desirable ODR violation reporting behavior.
349   //
350   // Case 2:
351   // Assuming Name(AA) != Name(BB), but the rest of the declarations match,
352   // then the desirable behavior is to report an ODR violation on struct B
353   // (vs. struct A).
354   //
355   // In this case, RSExportRecordType::matchODR() has the following behavior:
356   //
357   // A.matchODR(B, true) should report an ODR violation w.r.t. struct B;
358   // because AA and BB are two different types, AA.matchODR(BB) won't be
359   // called.
360   //
361   // A.matchODR(B, false) should not report an error; this happens, should
362   // there be any more additional enclosing types for A subject to ODR check.
363   virtual bool matchODR(const RSExportType *E, bool LookInto) const;
364 };  // RSExportType
365 
366 // Primitive types
367 class RSExportPrimitiveType : public RSExportType {
368   friend class RSExportType;
369   friend class RSExportElement;
370  private:
371   DataType mType;
372   bool mNormalized;
373 
374   typedef llvm::StringMap<DataType> RSSpecificTypeMapTy;
375   static llvm::ManagedStatic<RSSpecificTypeMapTy> RSSpecificTypeMap;
376 
377   static const size_t SizeOfDataTypeInBits[];
378   // @T was normalized by calling RSExportType::NormalizeType() before calling
379   // this.
380   // @TypeName was retrieved from RSExportType::GetTypeName() before calling
381   // this
382   static RSExportPrimitiveType *Create(RSContext *Context,
383                                        const clang::Type *T,
384                                        const llvm::StringRef &TypeName,
385                                        bool Normalized = false);
386 
387  protected:
RSExportPrimitiveType(RSContext * Context,ExportClass Class,const llvm::StringRef & Name,DataType DT,bool Normalized)388   RSExportPrimitiveType(RSContext *Context,
389                         // for derived class to set their type class
390                         ExportClass Class,
391                         const llvm::StringRef &Name,
392                         DataType DT,
393                         bool Normalized)
394       : RSExportType(Context, Class, Name),
395         mType(DT),
396         mNormalized(Normalized) {
397   }
398 
399   virtual llvm::Type *convertToLLVMType() const;
400 
401   static DataType GetDataType(RSContext *Context, const clang::Type *T);
402 
403  public:
404   // T is normalized by calling RSExportType::NormalizeType() before
405   // calling this
406   static bool IsPrimitiveType(const clang::Type *T);
407 
408   // @T may not be normalized
409   static RSExportPrimitiveType *Create(RSContext *Context,
410                                        const clang::Type *T);
411 
412   static DataType GetRSSpecificType(const llvm::StringRef &TypeName);
413   static DataType GetRSSpecificType(const clang::Type *T);
414 
415   static bool IsRSMatrixType(DataType DT);
416   static bool IsRSObjectType(DataType DT);
IsRSObjectType(const clang::Type * T)417   static bool IsRSObjectType(const clang::Type *T) {
418     return IsRSObjectType(GetRSSpecificType(T));
419   }
420 
421   // Determines whether T is [an array of] struct that contains at least one
422   // RS object type within it.
423   static bool IsStructureTypeWithRSObject(const clang::Type *T);
424 
425   // For a primitive type, this is the size of the type.
426   // For a vector type (RSExportVectorType is derived from RSExportPrimitiveType),
427   // this is the size of a single vector element (component).
428   static size_t GetElementSizeInBits(const RSExportPrimitiveType *EPT);
429 
getType()430   inline DataType getType() const { return mType; }
isRSObjectType()431   inline bool isRSObjectType() const {
432       return IsRSObjectType(mType);
433   }
434 
435   bool matchODR(const RSExportType *E, bool LookInto) const override;
436 
437   static RSReflectionType *getRSReflectionType(DataType DT);
getRSReflectionType(const RSExportPrimitiveType * EPT)438   static RSReflectionType *getRSReflectionType(
439       const RSExportPrimitiveType *EPT) {
440     return getRSReflectionType(EPT->getType());
441   }
442 
443   // For a vector type, this is the size of a single element.
getElementSizeInBytes()444   unsigned getElementSizeInBytes() const { return (GetElementSizeInBits(this) >> 3); }
445 
getElementName()446   std::string getElementName() const {
447     return getRSReflectionType(this)->rs_short_type;
448   }
449 };  // RSExportPrimitiveType
450 
451 
452 class RSExportPointerType : public RSExportType {
453   friend class RSExportType;
454   friend class RSExportFunc;
455  private:
456   const RSExportType *mPointeeType;
457 
RSExportPointerType(RSContext * Context,const llvm::StringRef & Name,const RSExportType * PointeeType)458   RSExportPointerType(RSContext *Context,
459                       const llvm::StringRef &Name,
460                       const RSExportType *PointeeType)
461       : RSExportType(Context, ExportClassPointer, Name),
462         mPointeeType(PointeeType) {
463   }
464 
465   // @PT was normalized by calling RSExportType::NormalizeType() before calling
466   // this.
467   static RSExportPointerType *Create(RSContext *Context,
468                                      const clang::PointerType *PT,
469                                      const llvm::StringRef &TypeName);
470 
471   virtual llvm::Type *convertToLLVMType() const;
472 
473  public:
474   virtual bool keep();
475 
getPointeeType()476   inline const RSExportType *getPointeeType() const { return mPointeeType; }
477 
478   bool matchODR(const RSExportType *E, bool LookInto) const override;
479 };  // RSExportPointerType
480 
481 
482 class RSExportVectorType : public RSExportPrimitiveType {
483   friend class RSExportType;
484   friend class RSExportElement;
485  private:
486   unsigned mNumElement;   // number of elements (components)
487 
RSExportVectorType(RSContext * Context,const llvm::StringRef & Name,DataType DT,bool Normalized,unsigned NumElement)488   RSExportVectorType(RSContext *Context,
489                      const llvm::StringRef &Name,
490                      DataType DT,
491                      bool Normalized,
492                      unsigned NumElement)
493       : RSExportPrimitiveType(Context, ExportClassVector, Name,
494                               DT, Normalized),
495         mNumElement(NumElement) {
496   }
497 
498   // @EVT was normalized by calling RSExportType::NormalizeType() before
499   // calling this.
500   static RSExportVectorType *Create(RSContext *Context,
501                                     const clang::ExtVectorType *EVT,
502                                     const llvm::StringRef &TypeName,
503                                     bool Normalized = false);
504 
505   virtual llvm::Type *convertToLLVMType() const;
506 
507  public:
508   static llvm::StringRef GetTypeName(const clang::ExtVectorType *EVT);
509 
getNumElement()510   inline unsigned getNumElement() const { return mNumElement; }
511 
getElementName()512   std::string getElementName() const {
513     std::stringstream Name;
514     Name << RSExportPrimitiveType::getRSReflectionType(this)->rs_short_type
515          << "_" << getNumElement();
516     return Name.str();
517   }
518 
519   bool matchODR(const RSExportType *E, bool LookInto) const override;
520 };
521 
522 // Only *square* *float* matrix is supported by now.
523 //
524 // struct rs_matrix{2x2,3x3,4x4, ..., NxN} should be defined as the following
525 // form *exactly*:
526 //  typedef struct {
527 //    float m[{NxN}];
528 //  } rs_matrixNxN;
529 //
530 //  where mDim will be N.
531 class RSExportMatrixType : public RSExportType {
532   friend class RSExportType;
533  private:
534   unsigned mDim;  // dimension
535 
RSExportMatrixType(RSContext * Context,const llvm::StringRef & Name,unsigned Dim)536   RSExportMatrixType(RSContext *Context,
537                      const llvm::StringRef &Name,
538                      unsigned Dim)
539     : RSExportType(Context, ExportClassMatrix, Name),
540       mDim(Dim) {
541   }
542 
543   virtual llvm::Type *convertToLLVMType() const;
544 
545  public:
546   // @RT was normalized by calling RSExportType::NormalizeType() before
547   // calling this.
548   static RSExportMatrixType *Create(RSContext *Context,
549                                     const clang::RecordType *RT,
550                                     const llvm::StringRef &TypeName,
551                                     unsigned Dim);
552 
getDim()553   inline unsigned getDim() const { return mDim; }
554 
555   bool matchODR(const RSExportType *E, bool LookInto) const override;
556 
557 };
558 
559 class RSExportConstantArrayType : public RSExportType {
560   friend class RSExportType;
561  private:
562   const RSExportType *mElementType;  // Array element type
563   unsigned mNumElement;              // Array element count
564 
RSExportConstantArrayType(RSContext * Context,const RSExportType * ElementType,unsigned NumElement)565   RSExportConstantArrayType(RSContext *Context,
566                             const RSExportType *ElementType,
567                             unsigned NumElement)
568     : RSExportType(Context, ExportClassConstantArray, "<ConstantArray>"),
569       mElementType(ElementType),
570       mNumElement(NumElement) {
571   }
572 
573   // @CAT was normalized by calling RSExportType::NormalizeType() before
574   // calling this.
575   static RSExportConstantArrayType *Create(RSContext *Context,
576                                            const clang::ConstantArrayType *CAT);
577 
578   virtual llvm::Type *convertToLLVMType() const;
579 
580  public:
getNumElement()581   unsigned getNumElement() const { return mNumElement; }
getElementType()582   const RSExportType *getElementType() const { return mElementType; }
583 
getElementName()584   std::string getElementName() const {
585     return mElementType->getElementName();
586   }
587 
588   virtual bool keep();
589   bool matchODR(const RSExportType *E, bool LookInto) const override;
590 };
591 
592 class RSExportRecordType : public RSExportType {
593   friend class RSExportType;
594  public:
595   class Field {
596    private:
597     const RSExportType *mType;
598     // Field name
599     std::string mName;
600     // Link to the struct that contain this field
601     const RSExportRecordType *mParent;
602     // Offset in the container
603     size_t mOffset;
604 
605    public:
Field(const RSExportType * T,const llvm::StringRef & Name,const RSExportRecordType * Parent,size_t Offset)606     Field(const RSExportType *T,
607           const llvm::StringRef &Name,
608           const RSExportRecordType *Parent,
609           size_t Offset)
610         : mType(T),
611           mName(Name.data(), Name.size()),
612           mParent(Parent),
613           mOffset(Offset) {
614     }
615 
getParent()616     inline const RSExportRecordType *getParent() const { return mParent; }
getType()617     inline const RSExportType *getType() const { return mType; }
getName()618     inline const std::string &getName() const { return mName; }
getOffsetInParent()619     inline size_t getOffsetInParent() const { return mOffset; }
620   };
621 
622   typedef std::list<const Field*>::const_iterator const_field_iterator;
623 
fields_begin()624   inline const_field_iterator fields_begin() const {
625     return this->mFields.begin();
626   }
fields_end()627   inline const_field_iterator fields_end() const {
628     return this->mFields.end();
629   }
fields_size()630   inline size_t fields_size() const {
631     return this->mFields.size();
632   }
633 
634  private:
635   std::list<const Field*> mFields;
636   bool mIsPacked;
637   // Artificial export struct type is not exported by user (and thus it won't
638   // get reflected)
639   bool mIsArtificial;
640   size_t mStoreSize;
641   size_t mAllocSize;
642 
RSExportRecordType(RSContext * Context,const llvm::StringRef & Name,clang::SourceLocation Loc,bool IsPacked,bool IsArtificial,size_t StoreSize,size_t AllocSize)643   RSExportRecordType(RSContext *Context,
644                      const llvm::StringRef &Name,
645                      clang::SourceLocation Loc,
646                      bool IsPacked,
647                      bool IsArtificial,
648                      size_t StoreSize,
649                      size_t AllocSize)
650       : RSExportType(Context, ExportClassRecord, Name, Loc),
651         mIsPacked(IsPacked),
652         mIsArtificial(IsArtificial),
653         mStoreSize(StoreSize),
654         mAllocSize(AllocSize) {
655   }
656 
657   // @RT was normalized by calling RSExportType::NormalizeType() before calling
658   // this.
659   // @TypeName was retrieved from RSExportType::GetTypeName() before calling
660   // this.
661   static RSExportRecordType *Create(RSContext *Context,
662                                     const clang::RecordType *RT,
663                                     const llvm::StringRef &TypeName,
664                                     bool mIsArtificial = false);
665 
666   virtual llvm::Type *convertToLLVMType() const;
667 
668  public:
getFields()669   inline const std::list<const Field*>& getFields() const { return mFields; }
isPacked()670   inline bool isPacked() const { return mIsPacked; }
isArtificial()671   inline bool isArtificial() const { return mIsArtificial; }
getStoreSize()672   virtual size_t getStoreSize() const { return mStoreSize; }
getAllocSize()673   virtual size_t getAllocSize() const { return mAllocSize; }
674 
getElementName()675   virtual std::string getElementName() const {
676     return "ScriptField_" + getName();
677   }
678 
679   virtual bool keep();
680   bool matchODR(const RSExportType *E, bool LookInto) const override;
681 
~RSExportRecordType()682   ~RSExportRecordType() {
683     for (std::list<const Field*>::iterator I = mFields.begin(),
684              E = mFields.end();
685          I != E;
686          I++)
687       if (*I != nullptr)
688         delete *I;
689   }
690 };  // RSExportRecordType
691 
692 }   // namespace slang
693 
694 #endif  // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_EXPORT_TYPE_H_  NOLINT
695