本文整理汇总了C++中Local::Uint32Value方法的典型用法代码示例。如果您正苦于以下问题：C++ Local::Uint32Value方法的具体用法？C++ Local::Uint32Value怎么用？C++ Local::Uint32Value使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Local的用法示例。
在下文中一共展示了Local::Uint32Value方法的5个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: newIndexBound
Handle<Value> newIndexBound(const Arguments &args) {
HandleScope scope;
const Local<Object> spec = args[0]->ToObject();
Local<Value> v;
Local<Object> o;
NdbIndexScanOperation::IndexBound * bound =
new NdbIndexScanOperation::IndexBound;
Local<Object> jsBound = IndexBoundEnvelope.newWrapper();
wrapPointerInObject(bound, IndexBoundEnvelope, jsBound);
bound->low_key = 0;
v = spec->Get(BOUND_LOW_KEY);
if(v->IsNull()) {
bound->low_key = 0;
} else {
o = v->ToObject();
bound->low_key = node::Buffer::Data(o);
}
bound->low_key_count = 0;
v = spec->Get(BOUND_LOW_KEY_COUNT);
if(! v->IsNull()) {
bound->low_key_count = v->Uint32Value();
}
bound->low_inclusive = false;
v = spec->Get(BOUND_LOW_INCLUSIVE);
if(! v->IsNull()) {
bound->low_inclusive = v->BooleanValue();
}
bound->high_key = 0;
v = spec->Get(BOUND_HIGH_KEY);
if(v->IsNull()) {
bound->high_key = 0;
} else {
o = v->ToObject();
bound->high_key = node::Buffer::Data(o);
}
bound->high_key_count = 0;
v = spec->Get(BOUND_HIGH_KEY_COUNT);
if(! v->IsNull()) {
bound->high_key_count = v->Uint32Value();
}
bound->high_inclusive = false;
v = spec->Get(BOUND_HIGH_INCLUSIVE);
if(! v->IsNull()) {
bound->high_inclusive = v->BooleanValue();
}
bound->range_no = 0;
v = spec->Get(BOUND_RANGE_NO);
if(! v->IsNull()) {
bound->range_no = v->Uint32Value();
}
debug_print_bound(bound);
return scope.Close(jsBound);
}示例2: nbounds
DBScanHelper::DBScanHelper(const Arguments &args) :
nbounds(0),
isIndexScan(false)
{
DEBUG_MARKER(UDEB_DEBUG);
Local<Value> v;
const Local<Object> spec = args[0]->ToObject();
int opcode = args[1]->Int32Value();
tx = unwrapPointer<NdbTransaction *>(args[2]->ToObject());
lmode = NdbOperation::LM_CommittedRead;
scan_options = & options;
options.optionsPresent = 0ULL;
v = spec->Get(SCAN_TABLE_RECORD);
if(! v->IsNull()) {
Local<Object> o = v->ToObject();
row_record = unwrapPointer<const Record *>(o);
}
v = spec->Get(SCAN_INDEX_RECORD);
if(! v->IsNull()) {
Local<Object> o = v->ToObject();
isIndexScan = true;
key_record = unwrapPointer<const Record *>(o);
}
v = spec->Get(SCAN_LOCK_MODE);
if(! v->IsNull()) {
int intLockMode = v->Int32Value();
lmode = static_cast<NdbOperation::LockMode>(intLockMode);
}
// SCAN_BOUNDS is an array of BoundHelpers
v = spec->Get(SCAN_BOUNDS);
if(v->IsArray()) {
Local<Object> o = v->ToObject();
while(o->Has(nbounds)) {
nbounds++;
}
bounds = new NdbIndexScanOperation::IndexBound *[nbounds];
for(int i = 0 ; i < nbounds ; i++) {
Local<Object> b = o->Get(i)->ToObject();
bounds[i] = unwrapPointer<NdbIndexScanOperation::IndexBound *>(b);
}
}
v = spec->Get(SCAN_OPTION_FLAGS);
if(! v->IsNull()) {
options.scan_flags = v->Uint32Value();
options.optionsPresent |= NdbScanOperation::ScanOptions::SO_SCANFLAGS;
}
v = spec->Get(SCAN_OPTION_BATCH_SIZE);
if(! v->IsNull()) {
options.batch = v->Uint32Value();
options.optionsPresent |= NdbScanOperation::ScanOptions::SO_BATCH;
}
v = spec->Get(SCAN_OPTION_PARALLELISM);
if(! v->IsNull()) {
options.parallel = v->Uint32Value();
options.optionsPresent |= NdbScanOperation::ScanOptions::SO_PARALLEL;
}
v = spec->Get(SCAN_FILTER_CODE);
if(! v->IsNull()) {
Local<Object> o = v->ToObject();
options.interpretedCode = unwrapPointer<NdbInterpretedCode *>(o);
options.optionsPresent |= NdbScanOperation::ScanOptions::SO_INTERPRETED;
}
/* Scanning delete requires key info */
if(opcode == OP_SCAN_DELETE) {
options.scan_flags |= NdbScanOperation::SF_KeyInfo;
options.optionsPresent |= NdbScanOperation::ScanOptions::SO_SCANFLAGS;
}
/* Done defining the object */
}示例3: TransformParameter
bool CQueryParameter::TransformParameter( Isolate* isolate, Local< Value > value, sBindParameter** pOutParam )
{
HandleScope scope( isolate );
Local< Context > context = isolate->GetCurrentContext( );
sBindParameter* pParameter = *pOutParam;
if( value->IsNull( ) )
{
pParameter->SetNull( );
}
else if( value->IsString( ) )
{
pParameter->SetString( value.As<String>( ) );
}
else if( value->IsBoolean( ) )
{
pParameter->SetBool( value->BooleanValue( context ).FromJust( ) );
}
else if( value->IsInt32( ) )
{
pParameter->SetInt( value->Int32Value( context ).FromJust( ) );
}
else if( value->IsUint32( ) )
{
pParameter->SetUInt( value->Uint32Value( context ).FromJust( ) );
}
else if( value->IsNumber( ) )
{
double d = value->NumberValue( context ).FromJust( );
if( _isnan( d ) || !_finite( d ) )
{
return false;
}
else if( d == floor( d ) &&
d >= std::numeric_limits<int64_t>::min( ) &&
d <= std::numeric_limits<int64_t>::max( )
)
{
pParameter->SetInt64( value->IntegerValue( context ).FromJust( ) );
}
else
{
pParameter->SetDouble( value->NumberValue( context ).FromJust( ) );
}
}
else if( value->IsDate( ) )
{
Local<Date> dateObject = value.As<Date>( );
pParameter->SetDate( dateObject->NumberValue( context ).FromJust( ) );
}
else if( value->IsObject( ) )
{
Local<Object> objValue = value.As<Object>( );
if( node::Buffer::HasInstance( value ) )
{
pParameter->SetBuffer( isolate, objValue );
}
else
{
Local< String > strId = String::NewFromUtf8( isolate, "_objId", NewStringType::kNormal ).ToLocalChecked( );
if( objValue->HasRealNamedProperty( context, strId ).FromJust( ) )
{
Local< Uint32 > numTypeId = objValue->Get( context, strId ).ToLocalChecked( ).As< Uint32 >( );
uint32_t nType = numTypeId->Int32Value( context ).FromJust( );
switch( nType )
{
case ID_INPUT_STREAM:
{
Local<Value> type = objValue->Get(
context, String::NewFromUtf8( isolate, "type", NewStringType::kNormal ).ToLocalChecked( )
).ToLocalChecked( );
Local<Value> stream = objValue->Get(
context, String::NewFromUtf8( isolate, "stream", NewStringType::kNormal ).ToLocalChecked( )
).ToLocalChecked( );
Local<Value> length = objValue->Get(
context, String::NewFromUtf8( isolate, "length", NewStringType::kNormal ).ToLocalChecked( )
).ToLocalChecked( );
pParameter->SetStream( isolate, type->Uint32Value( context ).FromJust( ), stream, static_cast< SQLUINTEGER >( length->IntegerValue( context ).FromJust( ) ) );
break;
}
case ID_NUMERIC_VALUE:
{
Local< Value > precision = objValue->Get(
context, String::NewFromUtf8( isolate, "precision", NewStringType::kNormal ).ToLocalChecked( )
).ToLocalChecked( );
Local<Value> scale = objValue->Get(
context, String::NewFromUtf8( isolate, "scale", NewStringType::kNormal ).ToLocalChecked( )
).ToLocalChecked( );
//.........这里部分代码省略.........
示例4: BindParameters
bool QueryOperation::BindParameters( Handle<Array> node_params )
{
uint32_t count = node_params->Length();
if( count > 0 ) {
for( uint32_t i = 0; i < count; ++i ) {
Local<Value> p = node_params->Get( i );
ParamBinding binding;
if( p->IsNull() ) {
binding.js_type = ParamBinding::JS_NULL;
binding.c_type = SQL_C_CHAR;
binding.sql_type = SQL_CHAR;
binding.param_size = 1;
binding.digits = 0;
binding.buffer = NULL;
binding.buffer_len = 0;
binding.indptr = SQL_NULL_DATA;
}
else if( p->IsString() ) {
binding.js_type = ParamBinding::JS_STRING;
binding.c_type = SQL_C_WCHAR;
binding.sql_type = SQL_WVARCHAR;
Local<String> str_param = p->ToString();
int str_len = str_param->Length();
binding.buffer = new uint16_t[ str_len + 1 ]; // null terminator
str_param->Write( static_cast<uint16_t*>( binding.buffer ));
if( str_len > 4000 ) {
binding.param_size = 0; // max types require 0 precision
}
else {
binding.param_size = str_len;
}
binding.buffer_len = str_len * sizeof( uint16_t );
binding.digits = 0;
binding.indptr = binding.buffer_len;
}
else if( p->IsBoolean() ) {
binding.js_type = ParamBinding::JS_BOOLEAN;
binding.c_type = SQL_C_BIT;
binding.sql_type = SQL_BIT;
binding.buffer = new uint16_t;
binding.buffer_len = sizeof( uint16_t );
*static_cast<uint16_t*>( binding.buffer ) = p->BooleanValue();
binding.param_size = 1;
binding.digits = 0;
binding.indptr = binding.buffer_len;
}
else if( p->IsInt32()) {
binding.js_type = ParamBinding::JS_INT;
binding.c_type = SQL_C_SLONG;
binding.sql_type = SQL_INTEGER;
binding.buffer = new int32_t;
binding.buffer_len = sizeof( int32_t );
*static_cast<int32_t*>( binding.buffer ) = p->Int32Value();
binding.param_size = sizeof( int32_t );
binding.digits = 0;
binding.indptr = binding.buffer_len;
}
else if( p->IsUint32()) {
binding.js_type = ParamBinding::JS_UINT;
binding.c_type = SQL_C_ULONG;
binding.sql_type = SQL_BIGINT;
binding.buffer = new uint32_t;
binding.buffer_len = sizeof( uint32_t );
*static_cast<int32_t*>( binding.buffer ) = p->Uint32Value();
binding.param_size = sizeof( uint32_t );
binding.digits = 0;
binding.indptr = binding.buffer_len;
}
else if( p->IsNumber()) {
// numbers can be either integers or doubles. We attempt to determine which it is through a simple
// cast and equality check
double d = p->NumberValue();
if( _isnan( d ) || !_finite( d ) ) {
return ParameterErrorToUserCallback( i, "Invalid number parameter" );
}
else if( d == floor( d ) &&
d >= std::numeric_limits<int64_t>::min() &&
d <= std::numeric_limits<int64_t>::max() ) {
binding.js_type = ParamBinding::JS_NUMBER;
binding.c_type = SQL_C_SBIGINT;
binding.sql_type = SQL_BIGINT;
binding.buffer = new int64_t;
binding.buffer_len = sizeof( int64_t );
*static_cast<int64_t*>( binding.buffer ) = p->IntegerValue();
binding.param_size = sizeof( int64_t );
binding.digits = 0;
binding.indptr = binding.buffer_len;
//.........这里部分代码省略.........
示例5: KeyOperation
ScanOperation::ScanOperation(const Arguments &args) :
KeyOperation(),
scan_op(0),
index_scan_op(0),
nbounds(0),
isIndexScan(false)
{
DEBUG_MARKER(UDEB_DEBUG);
Local<Value> v;
const Local<Object> spec = args[0]->ToObject();
opcode = args[1]->Int32Value();
ctx = unwrapPointer<TransactionImpl *>(args[2]->ToObject());
lmode = NdbOperation::LM_CommittedRead;
scan_options.scan_flags = 0;
scan_options.optionsPresent = 0ULL;
v = spec->Get(SCAN_TABLE_RECORD);
if(! v->IsNull()) {
Local<Object> o = v->ToObject();
row_record = unwrapPointer<const Record *>(o);
createBlobReadHandles(row_record);
}
v = spec->Get(SCAN_INDEX_RECORD);
if(! v->IsNull()) {
Local<Object> o = v->ToObject();
isIndexScan = true;
key_record = unwrapPointer<const Record *>(o);
}
v = spec->Get(SCAN_LOCK_MODE);
if(! v->IsNull()) {
int intLockMode = v->Int32Value();
DEBUG_PRINT("Scan lock mode %d", intLockMode);
lmode = static_cast<NdbOperation::LockMode>(intLockMode);
}
// SCAN_BOUNDS is an array of BoundHelpers
v = spec->Get(SCAN_BOUNDS);
if(v->IsArray()) {
Local<Object> o = v->ToObject();
while(o->Has(nbounds)) {
nbounds++;
}
DEBUG_PRINT("Index Scan with %d IndexBounds", nbounds);
bounds = new NdbIndexScanOperation::IndexBound *[nbounds];
for(int i = 0 ; i < nbounds ; i++) {
Local<Object> b = o->Get(i)->ToObject();
bounds[i] = unwrapPointer<NdbIndexScanOperation::IndexBound *>(b);
}
}
v = spec->Get(SCAN_OPTION_FLAGS);
if(! v->IsNull()) {
scan_options.scan_flags = v->Uint32Value();
}
v = spec->Get(SCAN_OPTION_BATCH_SIZE);
if(! v->IsNull()) {
scan_options.batch = v->Uint32Value();
scan_options.optionsPresent |= NdbScanOperation::ScanOptions::SO_BATCH;
}
v = spec->Get(SCAN_OPTION_PARALLELISM);
if(! v->IsNull()) {
scan_options.parallel = v->Uint32Value();
scan_options.optionsPresent |= NdbScanOperation::ScanOptions::SO_PARALLEL;
}
v = spec->Get(SCAN_FILTER_CODE);
if(! v->IsNull()) {
Local<Object> o = v->ToObject();
scan_options.interpretedCode = unwrapPointer<NdbInterpretedCode *>(o);
scan_options.optionsPresent |= NdbScanOperation::ScanOptions::SO_INTERPRETED;
}
/* Scanning delete requires key info */
if(opcode == OP_SCAN_DELETE) {
scan_options.scan_flags |= NdbScanOperation::SF_KeyInfo;
}
/* If any flags were set, also set SO_SCANFLAGS options */
if(scan_options.scan_flags != 0) {
scan_options.optionsPresent |= NdbScanOperation::ScanOptions::SO_SCANFLAGS;
}
/* Done defining the object */
debug_print_flags_and_options(scan_options);
}