slang_rs_export_var.cpp revision a41ce1d98094da84643995d40d71c529905123fc 
1#include "slang_rs_export_var.h"
2
3#include "llvm/ADT/APSInt.h"
4
5#include "clang/AST/Type.h"
6
7#include "slang_rs_context.h"
8#include "slang_rs_export_type.h"
9
10using namespace slang;
11
12RSExportVar::RSExportVar(RSContext *Context,
13                         const clang::VarDecl *VD,
14                         const RSExportType *ET)
15    : RSExportable(Context, RSExportable::EX_VAR),
16      mContext(Context),
17      mName(VD->getName().data(), VD->getName().size()),
18      mET(ET),
19      mIsConst(false) {
20  // mInit - Evaluate initializer expression
21  const clang::Expr *Initializer = VD->getAnyInitializer();
22  if (Initializer != NULL) {
23    switch (ET->getClass()) {
24      case RSExportType::ExportClassPrimitive:
25      case RSExportType::ExportClassVector: {
26        Initializer->Evaluate(mInit, *Context->getASTContext());
27        break;
28      }
29      case RSExportType::ExportClassPointer: {
30        if (Initializer->isNullPointerConstant
31            (*Context->getASTContext(),
32             clang::Expr::NPC_ValueDependentIsNotNull)
33            )
34          mInit.Val = clang::APValue(llvm::APSInt(1));
35        else
36          Initializer->Evaluate(mInit, *Context->getASTContext());
37        break;
38      }
39      case RSExportType::ExportClassRecord: {
40        // No action
41        fprintf(stderr, "RSExportVar::RSExportVar : Reflection of initializer "
42                        "to variable '%s' (of type '%s') is unsupported "
43                        "currently.\n",
44                mName.c_str(),
45                ET->getName().c_str());
46        break;
47      }
48      default: {
49        assert(false && "Unknown class of type");
50      }
51    }
52  }
53
54  // mIsConst - Is it a constant?
55  clang::QualType QT = VD->getTypeSourceInfo()->getType();
56  if (!QT.isNull()) {
57    mIsConst = QT.isConstQualified();
58  }
59
60  return;
61}
62