NS_IMETHODIMP
nsJSON::Encode(const JS::Value& aValue, JSContext* cx, uint8_t aArgc,
nsAString &aJSON)
{
// This function should only be called from JS.
nsresult rv = WarnDeprecatedMethod(EncodeWarning);
if (NS_FAILED(rv))
return rv;
if (aArgc == 0) {
aJSON.Truncate();
aJSON.SetIsVoid(true);
return NS_OK;
}
nsJSONWriter writer;
rv = EncodeInternal(cx, aValue, &writer);
// FIXME: bug 408838. Get exception types sorted out
if (NS_SUCCEEDED(rv) || rv == NS_ERROR_INVALID_ARG) {
rv = NS_OK;
// if we didn't consume anything, it's not JSON, so return null
if (!writer.DidWrite()) {
aJSON.Truncate();
aJSON.SetIsVoid(true);
} else {
writer.FlushBuffer();
aJSON.Append(writer.mOutputString);
}
}
return rv;
}
NS_IMETHODIMP
nsJSON::EncodeToStream(nsIOutputStream *aStream,
const char* aCharset,
const bool aWriteBOM,
const JS::Value& val,
JSContext* cx,
uint8_t aArgc)
{
// This function should only be called from JS.
NS_ENSURE_ARG(aStream);
nsresult rv;
rv = CheckCharset(aCharset);
NS_ENSURE_SUCCESS(rv, rv);
// Check to see if we have a buffered stream
nsCOMPtr<nsIOutputStream> bufferedStream;
// FIXME: bug 408514.
// NS_OutputStreamIsBuffered(aStream) asserts on file streams...
//if (!NS_OutputStreamIsBuffered(aStream)) {
rv = NS_NewBufferedOutputStream(getter_AddRefs(bufferedStream),
aStream, 4096);
NS_ENSURE_SUCCESS(rv, rv);
// aStream = bufferedStream;
//}
uint32_t ignored;
if (aWriteBOM) {
if (strcmp(aCharset, "UTF-8") == 0)
rv = aStream->Write(UTF8BOM, 3, &ignored);
else if (strcmp(aCharset, "UTF-16LE") == 0)
rv = aStream->Write(UTF16LEBOM, 2, &ignored);
else if (strcmp(aCharset, "UTF-16BE") == 0)
rv = aStream->Write(UTF16BEBOM, 2, &ignored);
NS_ENSURE_SUCCESS(rv, rv);
}
nsJSONWriter writer(bufferedStream);
rv = writer.SetCharset(aCharset);
NS_ENSURE_SUCCESS(rv, rv);
if (aArgc == 0) {
return NS_OK;
}
rv = EncodeInternal(cx, val, &writer);
NS_ENSURE_SUCCESS(rv, rv);
rv = bufferedStream->Flush();
return rv;
}
//
// AString encode(in JSObject value, [optional] in JSObject whitelist);
//
NS_IMETHODIMP
nsJSON::Encode(nsAString &aJSON)
{
// This function should only be called from JS.
nsresult rv;
nsJSONWriter writer;
rv = EncodeInternal(&writer);
// FIXME: bug 408838. Get exception types sorted out
if (NS_SUCCEEDED(rv) || rv == NS_ERROR_INVALID_ARG) {
rv = NS_OK;
// if we didn't consume anything, it's not JSON, so return null
if (!writer.DidWrite()) {
aJSON.Truncate();
aJSON.SetIsVoid(PR_TRUE);
} else {
writer.FlushBuffer();
aJSON.Append(writer.mOutputString);
}
}
return rv;
}
