gecko-dev/xpcom/ds/nsSupportsPrimitives.cpp

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsSupportsPrimitives.h"
#include "nsMemory.h"
#include "prprf.h"

using mozilla::fallible_t;

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsIDImpl, nsISupportsID, nsISupportsPrimitive)

nsSupportsIDImpl::nsSupportsIDImpl()
  : mData(nullptr)
{
}

NS_IMETHODIMP
nsSupportsIDImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_ID;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsIDImpl::GetData(nsID** aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  if (mData) {
    *aData = (nsID*)nsMemory::Clone(mData, sizeof(nsID));
    return *aData ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
  }
  *aData = nullptr;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsIDImpl::SetData(const nsID* aData)
{
  if (mData) {
    nsMemory::Free(mData);
  }
  if (aData) {
    mData = (nsID*)nsMemory::Clone(aData, sizeof(nsID));
  } else {
    mData = nullptr;
  }
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsIDImpl::ToString(char** aResult)
{
  char* result;
  NS_ASSERTION(aResult, "Bad pointer");
  if (mData) {
    result = mData->ToString();
  } else {
    static const char nullStr[] = "null";
    result = (char*)nsMemory::Clone(nullStr, sizeof(nullStr));
  }

  *aResult = result;
  return result ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/*****************************************************************************
 * nsSupportsCStringImpl
 *****************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsCStringImpl, nsISupportsCString,
                  nsISupportsPrimitive)

NS_IMETHODIMP
nsSupportsCStringImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");

  *aType = TYPE_CSTRING;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsCStringImpl::GetData(nsACString& aData)
{
  aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsCStringImpl::ToString(char** aResult)
{
  *aResult = ToNewCString(mData);

  if (!*aResult) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsCStringImpl::SetData(const nsACString& aData)
{
  bool ok = mData.Assign(aData, fallible_t());
  if (!ok) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  return NS_OK;
}

/*****************************************************************************
 * nsSupportsStringImpl
 *****************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsStringImpl, nsISupportsString,
                  nsISupportsPrimitive)

NS_IMETHODIMP
nsSupportsStringImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");

  *aType = TYPE_STRING;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsStringImpl::GetData(nsAString& aData)
{
  aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsStringImpl::ToString(char16_t** aResult)
{
  *aResult = ToNewUnicode(mData);

  if (!*aResult) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsStringImpl::SetData(const nsAString& aData)
{
  bool ok = mData.Assign(aData, fallible_t());
  if (!ok) {
    return NS_ERROR_OUT_OF_MEMORY;
  }
  return NS_OK;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRBoolImpl, nsISupportsPRBool,
                  nsISupportsPrimitive)

nsSupportsPRBoolImpl::nsSupportsPRBoolImpl()
  : mData(false)
{
}

NS_IMETHODIMP
nsSupportsPRBoolImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRBOOL;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRBoolImpl::GetData(bool* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRBoolImpl::SetData(bool aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRBoolImpl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  const char* str = mData ? "true" : "false";
  *aResult = (char*)nsMemory::Clone(str, (strlen(str) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRUint8Impl, nsISupportsPRUint8,
                  nsISupportsPrimitive)

nsSupportsPRUint8Impl::nsSupportsPRUint8Impl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRUint8Impl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRUINT8;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint8Impl::GetData(uint8_t* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint8Impl::SetData(uint8_t aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint8Impl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 8;
  char buf[size];
  PR_snprintf(buf, size, "%u", (uint16_t)mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRUint16Impl, nsISupportsPRUint16,
                  nsISupportsPrimitive)

nsSupportsPRUint16Impl::nsSupportsPRUint16Impl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRUint16Impl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRUINT16;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint16Impl::GetData(uint16_t* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint16Impl::SetData(uint16_t aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint16Impl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 8;
  char buf[size];
  PR_snprintf(buf, size, "%u", (int)mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRUint32Impl, nsISupportsPRUint32,
                  nsISupportsPrimitive)

nsSupportsPRUint32Impl::nsSupportsPRUint32Impl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRUint32Impl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRUINT32;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint32Impl::GetData(uint32_t* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint32Impl::SetData(uint32_t aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint32Impl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 16;
  char buf[size];
  PR_snprintf(buf, size, "%lu", mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRUint64Impl, nsISupportsPRUint64,
                  nsISupportsPrimitive)

nsSupportsPRUint64Impl::nsSupportsPRUint64Impl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRUint64Impl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRUINT64;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint64Impl::GetData(uint64_t* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint64Impl::SetData(uint64_t aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRUint64Impl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 32;
  char buf[size];
  PR_snprintf(buf, size, "%llu", mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRTimeImpl, nsISupportsPRTime,
                  nsISupportsPrimitive)

nsSupportsPRTimeImpl::nsSupportsPRTimeImpl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRTimeImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRTIME;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRTimeImpl::GetData(PRTime* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRTimeImpl::SetData(PRTime aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRTimeImpl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 32;
  char buf[size];
  PR_snprintf(buf, size, "%llu", mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsCharImpl, nsISupportsChar,
                  nsISupportsPrimitive)

nsSupportsCharImpl::nsSupportsCharImpl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsCharImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_CHAR;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsCharImpl::GetData(char* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsCharImpl::SetData(char aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsCharImpl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");

  char* result = (char*)nsMemory::Alloc(2 * sizeof(char));
  if (result) {
    result[0] = mData;
    result[1] = '\0';
  }
  *aResult = result;
  return result ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRInt16Impl, nsISupportsPRInt16,
                  nsISupportsPrimitive)

nsSupportsPRInt16Impl::nsSupportsPRInt16Impl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRInt16Impl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRINT16;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt16Impl::GetData(int16_t* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt16Impl::SetData(int16_t aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt16Impl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 8;
  char buf[size];
  PR_snprintf(buf, size, "%d", mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRInt32Impl, nsISupportsPRInt32,
                  nsISupportsPrimitive)

nsSupportsPRInt32Impl::nsSupportsPRInt32Impl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRInt32Impl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRINT32;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt32Impl::GetData(int32_t* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt32Impl::SetData(int32_t aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt32Impl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 16;
  char buf[size];
  PR_snprintf(buf, size, "%ld", mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsPRInt64Impl, nsISupportsPRInt64,
                  nsISupportsPrimitive)

nsSupportsPRInt64Impl::nsSupportsPRInt64Impl()
  : mData(0)
{
}

NS_IMETHODIMP
nsSupportsPRInt64Impl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_PRINT64;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt64Impl::GetData(int64_t* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt64Impl::SetData(int64_t aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsPRInt64Impl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 32;
  char buf[size];
  PR_snprintf(buf, size, "%lld", mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsFloatImpl, nsISupportsFloat,
                  nsISupportsPrimitive)

nsSupportsFloatImpl::nsSupportsFloatImpl()
  : mData(float(0.0))
{
}

NS_IMETHODIMP
nsSupportsFloatImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_FLOAT;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsFloatImpl::GetData(float* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsFloatImpl::SetData(float aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsFloatImpl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 32;
  char buf[size];
  PR_snprintf(buf, size, "%f", (double)mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsDoubleImpl, nsISupportsDouble,
                  nsISupportsPrimitive)

nsSupportsDoubleImpl::nsSupportsDoubleImpl()
  : mData(double(0.0))
{
}

NS_IMETHODIMP
nsSupportsDoubleImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_DOUBLE;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsDoubleImpl::GetData(double* aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsDoubleImpl::SetData(double aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsDoubleImpl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");
  static const int size = 32;
  char buf[size];
  PR_snprintf(buf, size, "%f", mData);

  *aResult = (char*)nsMemory::Clone(buf, (strlen(buf) + 1) * sizeof(char));
  return  *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/


NS_IMPL_ISUPPORTS(nsSupportsVoidImpl, nsISupportsVoid,
                  nsISupportsPrimitive)

nsSupportsVoidImpl::nsSupportsVoidImpl()
  : mData(nullptr)
{
}

NS_IMETHODIMP
nsSupportsVoidImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_VOID;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsVoidImpl::GetData(void** aData)
{
  NS_ASSERTION(aData, "Bad pointer");
  *aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsVoidImpl::SetData(void* aData)
{
  mData = aData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsVoidImpl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");

  static const char str[] = "[raw data]";
  char* result = (char*)nsMemory::Clone(str, sizeof(str));
  *aResult = result;
  return  result ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/


NS_IMPL_ISUPPORTS(nsSupportsInterfacePointerImpl,
                  nsISupportsInterfacePointer,
                  nsISupportsPrimitive)

nsSupportsInterfacePointerImpl::nsSupportsInterfacePointerImpl()
  : mIID(nullptr)
{
}

nsSupportsInterfacePointerImpl::~nsSupportsInterfacePointerImpl()
{
  if (mIID) {
    nsMemory::Free(mIID);
  }
}

NS_IMETHODIMP
nsSupportsInterfacePointerImpl::GetType(uint16_t* aType)
{
  NS_ASSERTION(aType, "Bad pointer");
  *aType = TYPE_INTERFACE_POINTER;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsInterfacePointerImpl::GetData(nsISupports** aData)
{
  NS_ASSERTION(aData, "Bad pointer");

  *aData = mData;
  NS_IF_ADDREF(*aData);

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsInterfacePointerImpl::SetData(nsISupports* aData)
{
  mData = aData;

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsInterfacePointerImpl::GetDataIID(nsID** aIID)
{
  NS_ASSERTION(aIID, "Bad pointer");

  if (mIID) {
    *aIID = (nsID*)nsMemory::Clone(mIID, sizeof(nsID));
    return *aIID ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
  }
  *aIID = nullptr;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsInterfacePointerImpl::SetDataIID(const nsID* aIID)
{
  if (mIID) {
    nsMemory::Free(mIID);
  }
  if (aIID) {
    mIID = (nsID*)nsMemory::Clone(aIID, sizeof(nsID));
  } else {
    mIID = nullptr;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsInterfacePointerImpl::ToString(char** aResult)
{
  NS_ASSERTION(aResult, "Bad pointer");

  static const char str[] = "[interface pointer]";

  // jband sez: think about asking nsIInterfaceInfoManager whether
  // the interface has a known human-readable name
  *aResult = (char*)nsMemory::Clone(str, sizeof(str));
  return  *aResult ? NS_OK : NS_ERROR_OUT_OF_MEMORY;
}

/***************************************************************************/

NS_IMPL_ISUPPORTS(nsSupportsDependentCString, nsISupportsCString,
                  nsISupportsPrimitive)

nsSupportsDependentCString::nsSupportsDependentCString(const char* aStr)
  : mData(aStr)
{ }

NS_IMETHODIMP
nsSupportsDependentCString::GetType(uint16_t* aType)
{
  if (NS_WARN_IF(!aType)) {
    return NS_ERROR_INVALID_ARG;
  }

  *aType = TYPE_CSTRING;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsDependentCString::GetData(nsACString& aData)
{
  aData = mData;
  return NS_OK;
}

NS_IMETHODIMP
nsSupportsDependentCString::ToString(char** aResult)
{
  if (NS_WARN_IF(!aResult)) {
    return NS_ERROR_INVALID_ARG;
  }

  *aResult = ToNewCString(mData);
  if (!*aResult) {
    return NS_ERROR_OUT_OF_MEMORY;
  }

  return NS_OK;
}

NS_IMETHODIMP
nsSupportsDependentCString::SetData(const nsACString& aData)
{
  return NS_ERROR_NOT_IMPLEMENTED;
}