// Any new return statements added here should call MakeWeak() on bufferHandle_,
// if it is not empty.
void CallbackOverride(SQLRETURN ret) {
EOS_DEBUG_METHOD();
if (!SQL_SUCCEEDED(ret) && ret != SQL_NO_DATA) {
if (!bufferHandle_.IsEmpty())
NanDisposePersistent(bufferHandle_);
return CallbackErrorOverride(ret);
}
EOS_DEBUG(L"Final Result: %hi\n", ret);
Handle<Value> argv[4];
argv[0] = NanUndefined();
if (totalLength_ != SQL_NO_TOTAL)
argv[2] = NanNew<Number>(totalLength_);
else
argv[2] = NanUndefined();
argv[3] = NanNew<Boolean>(totalLength_ > bufferLength_ || (totalLength_ == SQL_NO_TOTAL && ret == SQL_SUCCESS_WITH_INFO));
if (ret == SQL_NO_DATA)
argv[1] = NanUndefined();
else if (totalLength_ == SQL_NULL_DATA)
argv[1] = NanNull();
else if (raw_) {
assert(!bufferHandle_.IsEmpty());
argv[1] = NanNew(bufferHandle_);
} else if (cType_ == SQL_C_BINARY) {
if (totalLength_ >= bufferLength_)
argv[1] = NanNew(bufferHandle_);
else
argv[1] = JSBuffer::Slice(NanNew(bufferHandle_), 0, totalLength_);
} else {
argv[1] = Eos::ConvertToJS(buffer_, totalLength_, bufferLength_, cType_);
if (argv[1]->IsUndefined())
argv[0] = OdbcError("Unable to interpret contents of result buffer");
}
// Can we Dispose() things that JS-land is referencing? We'll soon find out!
if (!bufferHandle_.IsEmpty())
NanDisposePersistent(bufferHandle_);
MakeCallback(argv);
}
namespace mssql {
// error returned when a string returns no data but it's not a NULL field
// ODBC returns SQL_NO_DATA so we translate this into an error and return it to node.js
OdbcError OdbcError::NODE_SQL_NO_DATA = OdbcError( "IMNOD", "No data returned", 1 );
}
OdbcExpected<bool> SqlLexer::Shift()
{
if (IsEod())
{
SetEod();
return false;
}
TokenType::Type tokenType = TokenType::EOD;
while (!IsEod())
{
int32_t tokenBegin = pos;
switch (sql[pos])
{
case '-':
{
// Full-line comment.
if (HaveData(1) && sql[pos + 1] == '-')
{
pos += 2;
while (!IsEod() && sql[pos] != '\n' && sql[pos] != '\r')
++pos;
continue;
}
// Minus.
tokenType = TokenType::MINUS;
break;
}
case '"':
{
// Quoted string.
while (true)
{
++pos;
if (IsEod())
return OdbcError(SqlState::SHY000_GENERAL_ERROR, "Unclosed quoted identifier.");
if (sql[pos] == '"')
{
if (!HaveData(2) || sql[pos + 1] != '"')
break;
++pos;
}
}
tokenType = TokenType::QUOTED;
break;
}
case '\'':
{
// String literal.
while (true)
{
++pos;
if (IsEod())
return OdbcError(SqlState::SHY000_GENERAL_ERROR, "Unclosed string literal.");
if (sql[pos] == '\'')
{
if (!HaveData(2) || sql[pos + 1] != '\'')
break;
++pos;
}
}
tokenType = TokenType::STRING;
break;
}
case '.':
{
tokenType = TokenType::DOT;
break;
}
case ',':
{
tokenType = TokenType::COMMA;
break;
}
case ';':
{
tokenType = TokenType::SEMICOLON;
break;
}
case '(':
{
tokenType = TokenType::PARENTHESIS_LEFT;
break;
}
case ')':
{
tokenType = TokenType::PARENTHESIS_RIGHT;
break;
}
default:
{
// Skipping spaces.
if (iscntrl(sql[pos]) || isspace(sql[pos]))
{
do
{
++pos;
}
while (!IsEod() && (iscntrl(sql[pos]) || isspace(sql[pos])));
continue;
}
// Word.
while (!IsEod() && !IsDelimiter(sql[pos]))
++pos;
--pos;
tokenType = TokenType::WORD;
break;
}
}
++pos;
if (tokenType != TokenType::EOD)
{
currentToken = SqlToken(&sql[tokenBegin], pos - tokenBegin, tokenType);
return true;
}
}
SetEod();
return false;
}
