C++ (Cpp) APValue示例

示例#1

文件： slang_rs_reflection_base.cpp 项目： IllusionRom-deprecated/android_platform_frameworks_compile_slang

string RSReflectionBase::genInitValue(const clang::APValue &Val, bool asBool) {
  stringstream tmp;
  switch (Val.getKind()) {
    case clang::APValue::Int: {
      llvm::APInt api = Val.getInt();
      if(asBool) {
        tmp << ((api.getSExtValue() == 0) ? "false" : "true");
      } else {
        // TODO: Handle unsigned possibly for C++ API.
        tmp << api.getSExtValue();
        if (api.getBitWidth() > 32) {
          tmp << "L";
        }
      }
      break;
    }

    case clang::APValue::Float: {
      llvm::APFloat apf = Val.getFloat();
      llvm::SmallString<30> s;
      apf.toString(s);
      tmp << s.c_str();
      if (&apf.getSemantics() == &llvm::APFloat::IEEEsingle) {
        if (s.count('.') == 0) {
          tmp << ".f";
        } else {
          tmp << "f";
        }
      }
      break;
    }

    case clang::APValue::ComplexInt:
    case clang::APValue::ComplexFloat:
    case clang::APValue::LValue:
    case clang::APValue::Vector: {
      slangAssert(false && "Primitive type cannot have such kind of initializer");
      break;
    }

    default: {
      slangAssert(false && "Unknown kind of initializer");
    }
  }
  return tmp.str();
}

示例#2

文件： slang_rs_reflection_base.cpp 项目： Proshivalskiy/MT6582_kernel_source

string RSReflectionBase::genInitValue(const clang::APValue &Val, bool asBool) {
  stringstream tmp;
  switch (Val.getKind()) {
    case clang::APValue::Int: {
      llvm::APInt api = Val.getInt();
      if(asBool) {
        tmp << ((api.getSExtValue() == 0) ? "false" : "true");
      } else {
        tmp << api.getSExtValue();
        if (api.getBitWidth() > 32) {
          tmp << "L";
        }
      }
      break;
    }

    case clang::APValue::Float: {
      llvm::APFloat apf = Val.getFloat();
      if (&apf.getSemantics() == &llvm::APFloat::IEEEsingle) {
        tmp << apf.convertToFloat() << "f";
      } else {
        tmp << apf.convertToDouble();
      }
      break;
    }

    case clang::APValue::ComplexInt:
    case clang::APValue::ComplexFloat:
    case clang::APValue::LValue:
    case clang::APValue::Vector: {
      slangAssert(false && "Primitive type cannot have such kind of initializer");
      break;
    }

    default: {
      slangAssert(false && "Unknown kind of initializer");
    }
  }
  return tmp.str();
}