C++ QualifiedType::isWideRef方法代码示例

static Type* getArgSymbolCodegenType(ArgSymbol* arg) {
  QualifiedType q = arg->qualType();
  Type* useType = q.type();

  if (q.isRef() && !q.isRefType())
    useType = getOrMakeRefTypeDuringCodegen(useType);

  if (q.isWideRef() && !q.isWideRefType()) {
    Type* refType = getOrMakeRefTypeDuringCodegen(useType);
    useType = getOrMakeWideTypeDuringCodegen(refType);
  }
  return useType;
}

GenRet ArgSymbol::codegen() {
  GenInfo* info = gGenInfo;
  FILE* outfile = info->cfile;
  GenRet ret;

  if( outfile ) {
    QualifiedType qt = qualType();
    ret.c = '&';
    ret.c += cname;
    ret.isLVPtr = GEN_PTR;
    if (qt.isRef() && !qt.isRefType())
      ret.chplType = getOrMakeRefTypeDuringCodegen(typeInfo());
    else if (qt.isWideRef() && !qt.isWideRefType()) {
      Type* refType = getOrMakeRefTypeDuringCodegen(typeInfo());
      ret.chplType = getOrMakeWideTypeDuringCodegen(refType);
    }
    /*
    // BHARSH TODO: Is this still necessary?
    if (q.isRef() && !q.isRefType()) {
      ret.c = cname;
      ret.isLVPtr = GEN_PTR;
    } else if(q.isWideRef() && !q.isWideRefType()) {
      ret.c = cname;
      ret.isLVPtr = GEN_WIDE_PTR;
    } else {
      ret.c = '&';
      ret.c += cname;
      ret.isLVPtr = GEN_PTR;
    }
    */
  } else {
#ifdef HAVE_LLVM
    ret = info->lvt->getValue(cname);
#endif
  }

  // BHARSH TODO: Is this still necessary?
  //if( requiresCPtr() ) {
  //  // Don't try to use chplType.
  //  ret.chplType = NULL;
  //  ret = codegenLocalDeref(ret);
  //}

  //ret.chplType = this->type;

  return ret;
}

void VarSymbol::codegenDefC(bool global, bool isHeader) {
  GenInfo* info = gGenInfo;
  if (this->hasFlag(FLAG_EXTERN))
    return;

  if (type == dtVoid)
    return;

  AggregateType* ct = toAggregateType(type);
  QualifiedType qt = qualType();

  if (qt.isRef() && !qt.isRefType()) {
    Type* refType = getOrMakeRefTypeDuringCodegen(type);
    ct = toAggregateType(refType);
  }
  if (qt.isWideRef() && !qt.isWideRefType()) {
    Type* refType = getOrMakeRefTypeDuringCodegen(type);
    Type* wideType = getOrMakeWideTypeDuringCodegen(refType);
    ct = toAggregateType(wideType);
  }

  Type* useType = type;
  if (ct) useType = ct;

  std::string typestr =  (this->hasFlag(FLAG_SUPER_CLASS) ?
                          std::string(toAggregateType(useType)->classStructName(true)) :
                          useType->codegen().c);

  //
  // a variable can be codegen'd as static if it is global and neither
  // exported nor external.
  //
  std::string str;

  if(fIncrementalCompilation) {
    bool addExtern =  global && isHeader;
    str = (addExtern ? "extern " : "") + typestr + " " + cname;
  } else {
    bool isStatic =  global && !hasFlag(FLAG_EXPORT) && !hasFlag(FLAG_EXTERN);
    str = (isStatic ? "static " : "") + typestr + " " + cname;
  }

  if (ct) {
    if (ct->isClass()) {
      if (isFnSymbol(defPoint->parentSymbol)) {
        str += " = NULL";
      }
    } else if (ct->symbol->hasFlag(FLAG_WIDE_REF) ||
               ct->symbol->hasFlag(FLAG_WIDE_CLASS)) {
      if (isFnSymbol(defPoint->parentSymbol)) {
        if (widePointersStruct) {
          //
          // CHPL_LOCALEID_T_INIT is #defined in the chpl-locale-model.h
          // file in the runtime, for the selected locale model.
          //
          str += " = {CHPL_LOCALEID_T_INIT, NULL}";
        } else {
          str += " = ((wide_ptr_t) NULL)";
        }
      }
    }
  }

  if (fGenIDS)
    str = idCommentTemp(this) + str;
  if (printCppLineno && !isHeader && !isTypeSymbol(defPoint->parentSymbol))
    str = zlineToString(this) + str;

  info->cLocalDecls.push_back(str);
}

//.........这里部分代码省略.........
          case INT_SIZE_32:
            castString = "UINT32(";
            break;
          case INT_SIZE_64:
            castString = "UINT64(";
            break;
          default:
            INT_FATAL("Unexpected immediate->num_index: %d\n", immediate->num_index);
          }
          ret.c = castString + uint64_to_string(uconst) + ")";
        } else {
          ret.c = "UINT64(" + uint64_to_string(uconst) + ")";
        }
      } else {
        ret.c = cname; // in C, all floating point literals are (double)
      }
    } else {
      // not immediate
      // is it a constant extern? If it is, it might be for example
      // an enum or #define'd value, in which case taking the address
      // of it is simply nonsense. Therefore, we code generate
      // extern const symbols as GEN_VAL (ie not an lvalue).
      if( hasFlag(FLAG_CONST) && hasFlag(FLAG_EXTERN) ) {
        ret.isLVPtr = GEN_VAL;
        ret.c = cname;
      } else {
        QualifiedType qt = qualType();
        if (lhsInSetReference) {
          ret.c = '&';
          ret.c += cname;
          ret.isLVPtr = GEN_PTR;
          if (qt.isRef() && !qt.isRefType())
            ret.chplType = getOrMakeRefTypeDuringCodegen(typeInfo());
          else if (qt.isWideRef() && !qt.isWideRefType()) {
            Type* refType = getOrMakeRefTypeDuringCodegen(typeInfo());
            ret.chplType = getOrMakeWideTypeDuringCodegen(refType);
          }
        } else {
          if (qt.isRef() && !qt.isRefType()) {
            ret.c = cname;
            ret.isLVPtr = GEN_PTR;
          } else if(qt.isWideRef() && !qt.isWideRefType()) {
            ret.c = cname;
            ret.isLVPtr = GEN_WIDE_PTR;
          } else {
            ret.c = '&';
            ret.c += cname;
            ret.isLVPtr = GEN_PTR;
          }
        }
      }
      // Print string contents in a comment if developer mode
      // and savec is set.
      if (developer &&
          0 != strcmp(saveCDir, "") &&
          immediate &&
          ret.chplType == dtString &&
          immediate->const_kind == CONST_KIND_STRING) {
        if (strstr(immediate->v_string, "/*") ||
            strstr(immediate->v_string, "*/")) {
          // Don't emit comment b/c string contained comment character.
        } else {
          ret.c += " /* \"";
          ret.c += immediate->v_string;
          ret.c += "\" */";
        }